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Notices Copyright © 1994-2000 Agilent Technologies Deutschland GmbH. All rights reserved. No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws. Warranty The material contained in this document is subject to change without notice.
6DIHW\ 6XPPDU\ The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements. *(1(5$/ This product is a Safety Class 1 instrument (provided with a protective earth terminal).
*5281' 7+( ,167580(17 To minimize shock hazard, the instrument chassis and cover must be connected to an electrical protective earth ground. The instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly connected to an electrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding) conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury.
2WKHU 6DIHW\ ,QIRUPDWLRQ • Adjustments described in this manual are performed with power supplied to the instrument while protective covers are removed. Be aware that energy at many points, if contacted, result in personal injury. • Do not install substitute parts or perform any unauthorized modification to the instrument. • Be aware that capacitors inside the instrument may still be charged even if the instrument has been connected from its source of supply.
• The following work should be carried out by a qualified electrician. All local electrical codes must be strictly observed: If the plug on the cable does not fit the power outlet, or if the cable is to be attached to a terminal block, cut the cable at the plug end and rewire it. The color coding used in the cable depends on the cable supplied.
&$ 87, 2 1 The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.
$ERXW 7KLV 0DQXDO 7KH 6WUXFWXUH RI WKLV 0DQXDO This manual is divided into 4 parts: • Chapter 1 tells you how to set up your Attenuator. • Chapters 2 to 6 shows you what you can do with your Attenuator. • Chapters 7 to 9 show you how you can remotely program your Attenuator, using GPIB commands. • The appendices contain additional information not required for routine day-to-day use.
6HUYLFH DQG 6XSSRUW Any adjustment, maintenance, or repair of this product must be performed by qualified personnel. Contact your customer engineer through your local Agilent Technologies Service Center. You can find a list of local service representatives on the Web at: http://www.agilent-tech.com/services/English/index.
Table of Contents 1 Getting Started 1.1 Using the Attenuator ..............................................29 Using the Modify Keys ...................................................... 29 1.2 Making an Attenuation Sweep ..............................30 Making an Automatic Sweep ............................................ 30 1.3 The Manual Sweep .................................................31 1.4 Using your Attenuator as a Variable Back Reflector 32 1.5 Using the Through-Power Mode ................
Table of Contents 3.2 The Automatic Sweep ............................................48 Setting Up an Automatic Sweep ........................................48 Executing the Automatic Sweep ........................................50 3.3 The Manual Sweep .................................................51 Setting Up a Manual Sweep ...............................................51 Executing the Manual Sweep .............................................53 3.4 Example, an Automatic Attenuation Sweep .......
Table of Contents 5.3 Selecting the Through-Power Mode .....................70 Deselecting the Through-Power Mode ............................... 71 Resetting the Through-Power Mode .................................. 71 5.4 Setting the Display Brightness ..............................71 Resetting the Display Brightness ....................................... 71 5.5 Selecting the Setting used at Power-On ...............72 Resetting the Power-On Setting ........................................ 72 5.
Table of Contents 7.3 Returning the Instrument to Local Control ........83 7.4 How the Attenuator Receives and Transmits Messages 83 How the Input Queue Works ..............................................83 The Output Queue ..............................................................84 The Error Queue .................................................................84 7.5 Some Notes about Programming and Syntax Diagram Conventions ..................................................................
Table of Contents *TST? ................................................................................ 103 *WAI ................................................................................. 104 8.4 DISPlay Commands ................................................104 :DISPlay:BRIGhtness ........................................................ 104 :DISPlay:ENABle .............................................................. 105 8.5 INPut Commands ...................................................
Table of Contents :SYSTem:ERRor? ..............................................................122 8.9 User Calibration Commands .................................123 Entering the User Calibration Data ....................................123 9 Programming Examples 9.1 Example 1 - Checking Communication ................131 9.2 Example 2 - Status Registers and Queues ............132 9.3 Example 3 - Measuring and Including the Insertion Loss ....................................................................
Table of Contents A.6 Monitor Output ......................................................149 A.7 Optical Output ......................................................150 Disabling the Optical Output ............................................. 150 A.8 GPIB Interface ......................................................150 Connector ........................................................................... 151 GPIB Logic Levels ............................................................ 152 A.
Table of Contents D Performance Tests D.1 Equipment Required .............................................175 D.2 Test Record .............................................................177 D.3 Test Failure .............................................................177 D.4 Instrument Specification .......................................177 D.5 Performance Test ...................................................178 I. Total Insertion Loss Test .................................................179 II.
Table of Contents E.5 Cleaning Instrument Housings .............................257 E.6 Which Cleaning Procedure should I use ? ...........257 Light dirt ............................................................................. 257 Heavy dirt ........................................................................... 257 E.7 How to clean connectors ........................................258 Preferred Procedure ............................................................
Table of Contents E.15 How to clean instruments with a recessed lens interface ..................................................................................265 Preferred Procedure .............................................................266 Procedure for Stubborn Dirt ................................................266 E.16 How to clean optical devices which are sensitive to mechanical stress and pressure .........................................267 Preferred Procedure ............................
Table of Contents F.2 GPIB Messages .......................................................276 Command Errors ................................................................. 276 Execution Errors ................................................................. 280 Device-Specific Errors ....................................................... 281 Query Errors ....................................................................... 282 Instrument Specific Errors ..............................................
Table of Contents 22
List of Figures Figure 1-1 The Attenuator Keys ................................................................................ 29 Figure 1-2 The Modify Keys ..................................................................................... 30 Figure 1-3 The Parameters for an Automatic Sweep ................................................. 31 Figure 1-4 The Hardware Configuration for the Back Reflector (Options 201 and 203) 32 Figure 2-1 The Hardware Configuration for the Attenuator ....................
List of Figures Figure B-2 Angled Contact Connector Configuration .............................................. Figure D-1 Total Insertion Loss Test Setup 1, Options 100, 101, 121 ...................... Figure D-2 Total Insertion Loss Test Setup 1, Options 201, 221 .............................. Figure D-3 Total Insertion Loss Test Setup 1, Option 350 ....................................... Figure D-4 Total Insertion Loss Test Setup 2, Options 100, 101, 121 ......................
List of Tables Table 7-1 GPIB Capabilities ...................................................................................... Table 8-1 Units and Allowed Mnemonics ................................................................. Table 8-2 Common Command Summary .................................................................. Table 8-3 Command List ........................................................................................... Table 8-4 The Event Status Enable Register ....................
List of Tables 26
1 1 Getting Started
Getting Started This chapter introduces the features of the Agilent Technologies 8156A. More detail is given on these features in the following chapters. The main features of the Agilent 8156A, other than its use as an attenuator, are its built-in sweep and back reflector applications, its through-power mode (which displays the power at the output of the instrument, rather than the amount of attenuation set) and its selection of wavelength calibration possibilities.
Getting Started Using the Attenuator 1.1 Using the Attenuator NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation. Set the attenuation of the filter using ATT (attenuation factor), λ (wavelength), and CAL (calibration factor).
Getting Started Making an Attenuation Sweep Figure 1-2 The Modify Keys Editing a Number Use ⇐ and ⇒ to move the cursor from digit to digit when editing a number. Use ⇑ and ⇓ to change the value of a digit when editing a number. Editing a Non-Numeric Parameter Use ⇑ or ⇒ to increment the parameter. Use ⇓ or ⇐ to decrement the parameter. 1.2 Making an Attenuation Sweep There are two types of attenuation sweep, automatic and manual.
Getting Started The Manual Sweep can edit the parameters for the sweep. START is the attenuation factor at which the sweep begins, STOP is the attenuation factor that ends the sweep, STEP is the size of the attenuation factor change, and DWELL is the time taken for each attenuation factor. Figure 1-3 The Parameters for an Automatic Sweep If you have set up your sweep, then you press EXEC to run it. 1.
Getting Started Using your Attenuator as a Variable Back Reflector 1.4 Using your Attenuator as a Variable Back Reflector NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation. To use the attenuator as a back reflector, you need to set up the hardware as shown in the figure below.
Getting Started Using the Through-Power Mode 1.5 Using the Through-Power Mode NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation. In the through-power mode, the instrument shows the power that gets through the attenuator on the display (that is the power at the output) rather than the attenuation.
Getting Started Selecting the Wavelength Calibration and Its Function • to reposition the filter so that the attenuation stays constant, or • to change the attenuation factor on the display to show the wavelength dependence. You use this to set the wavelength for an unknown source (you alter the wavelength until the displayed attenuation matches the measured attenuation). To set the function of the calibration data press SYST repeatedly until LAMBDCAL is shown at the bottom of the display.
2 2 Using the Attenuator
Using the Attenuator This chapter describes the use of the Agilent Technologies 8156A as an attenuator. There is an example given at the end of this chapter.
Using the Attenuator Setting Up the Hardware 2.1 Setting Up the Hardware To use the attenuator, you need to set up the hardware as shown in the figure below. Figure 2-1 The Hardware Configuration for the Attenuator NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation.
Using the Attenuator Setting Up the Attenuation 2.2 Setting Up the Attenuation The attenuation can be set in two different ways. This section describes how to set the attenuation by specifying the attenuation factor and an offset (called a calibration factor). “Selecting the Through-Power Mode” on page 70 describes how to set the attenuation by specifying the power that gets through. Entering the Attenuation Factor The attenuation factor is shown at the top left of the display.
Using the Attenuator Setting Up the Attenuation Resetting the Attenuation Factor To reset the attenuation factor, press and hold ATT until the value resets (this takes approximately two seconds). The attenuation factor resets so that the filter attenuation is zero, that is Att(dB) = Cal(dB) Entering a Calibration Factor The calibration factor is shown at the bottom left of the display Figure 2-3 The Calibration Factor on the Display This factor does not affect the filter attenuation.
Using the Attenuator Setting Up the Attenuation 1. press CAL, and 2. edit the factor using the Modify keys (see “Using the Modify Keys” on page 29). Resetting the Calibration Factor To reset the calibration factor, press and hold CAL until the value resets to zero (this takes approximately two seconds). The calibration factor resets to zero.
Using the Attenuator Setting Up the Attenuation unknown source (you alter the wavelength until the displayed attenuation matches the measured attenuation). There are two sets of wavelength calibration data, one made in the factory, individually, for your instrument. The user defines the other. For more details on these topics, see “Selecting the Wavelength Calibration and Its Function” on page 67. The wavelength is shown at the top right of the display.
Using the Attenuator Example, Setting the Calibration 2.3 Example, Setting the Calibration This example uses the Agilent 8156A Attenuator, with a HP 8153A multimeter with one source and one sensor. The connectors for this system are all HMS-10. We set up the hardware, and measure the insertion loss of the system and use this value to set a calibration factor. 1.
Using the Attenuator Example, Setting the Calibration NO T E Under normal circumstances you should leave the instruments to warmup. (The multimeter needs around 20 minutes to warmup. The attenuator needs around 45 minutes with the shutter open to warmup.) Warming up is necessary for accuracy of the sensor, and the output power of the source. d. Connect a patchcord from the source to the input of the sensor. 2. Measure the insertion loss of the Hardware setup: a. On the multimeter: i.
Using the Attenuator Example, Setting the Calibration c. Set the wavelength on the attenuator to that of the source: i. Press λ. ii. Use the modify keys to edit the value for the wavelength. d. Reset the calibration factor, by pressing and holding CAL for two seconds. e. Reset the attenuation factor, by pressing and holding ATT for two seconds. f. Enable the output of the attenuator (press ENB/DIS so that the LED lights). g. Note the value for the loss read by the multimeter. 3.
3 3 Making an Attenuation Sweep
Making an Attenuation Sweep This chapter describes how to make an attenuation sweep with the Agilent Technologies 8156A Attenuator. An example is given at the end of the chapter.
Making an Attenuation Sweep Configuring the Hardware 3.1 Configuring the Hardware To use the attenuator for a sweep, you need to set up the hardware as shown in the figure below. (This is the configuration as given for simple attenuation in chapter 2). Figure 3-1 The Hardware Configuration for the Attenuator NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes.
Making an Attenuation Sweep The Automatic Sweep 3.2 The Automatic Sweep An automatic sweep is one where stepping from one attenuation factor to the next is done by the instrument. Setting Up an Automatic Sweep There are four parameters for the automatic sweep NO T E • START is the attenuation factor at which the sweep begins. • STOP is the attenuation factor that ends the sweep.
Making an Attenuation Sweep The Automatic Sweep Figure 3-2 The Parameters for an Automatic Sweep Starting the Setting Up To select the automatic sweep 1. Press SWP. 2. If it is not already set, use ⇑ or ⇓ to set SWEEP to AUTO. Figure 3-3 Selecting the Automatic Sweep Application Editing the Parameters To edit the value of the parameters 3. Press SWP again to get START. 4. Edit the value of START with the Modify keys. 5. Press SWP again to get STOP.
Making an Attenuation Sweep The Automatic Sweep 6. Edit the value of STOP with the Modify keys. 7. Press SWP again to get STEP. 8. Edit the value of STEP with the Modify keys. 9. Press SWP again to get DWELL. 10. Edit the value of DWELL with the Modify keys. See “Using the Modify Keys” on page 29 for information on editing with the Modify keys. Resetting the Parameters To reset any of the sweep parameters, press and hold SWP until the value resets (this takes approximately two seconds).
Making an Attenuation Sweep The Manual Sweep Figure 3-4 Running the Automatic Sweep If there is something wrong with a parameter (if STEP is zero, for example), this parameter is shown on the display for editing. Edit the parameter, and press EXEC again. Repeating the Sweep When the sweep is finished (SWEEP READY is shown at the bottom of the display), you can press EXEC to start it again. Restarting the Sweep To restart the sweep at any time while it is running, press EXEC. 3.
Making an Attenuation Sweep The Manual Sweep • STEP is the size of the attenuation factor change. This value is always positive, even for a sweep of decreasing attenuation factor. STEP cannot be set to a value greater than the difference between START and STOP. Starting the Setting Up To select the manual sweep 1. Press SWP. 2. If it is not already set, use the modify keys to set SWEEP to MANUAL. Editing the Parameters To edit the value of the parameters 3. Press SWP again to get START. 4.
Making an Attenuation Sweep The Manual Sweep Resetting the Parameters To reset any of the sweep parameters, press and hold SWP until the value resets (this takes approximately two seconds). START and STOP reset so that the filter attenuation (inside the instrument) is zero, that is Start = Cal or Stop = Cal See “Entering a Calibration Factor” on page 39 for information about setting the calibration factor, Cal. STEP resets to zero.
Making an Attenuation Sweep Example, an Automatic Attenuation Sweep Changing the Attenuation in a Manual Sweep To go to the next attenuation factor in the sweep, press ⇑ or ⇒. To go to the previous attenuation factor in the sweep, press ⇓ or ⇐. 3.4 Example, an Automatic Attenuation Sweep This example uses the Agilent 8156A Attenuator on its own. We set up the instrument to sweep from 5dB to 0dB with an interval of 0.5dB, dwelling for a second at each attenuation factor. 1.
Making an Attenuation Sweep Example, an Automatic Attenuation Sweep c. Use the Modify keys to set STEP to 0.500dB. 5. Set the dwell time. a. Press SWP. b. Use the Modify keys to set DWELL to 1.00s. 6. Execute the sweep a. Press SWP. b. Make sure the output is enabled (press ENB/DIS until the LED lights). c. Press EXEC.
Making an Attenuation Sweep Example, an Automatic Attenuation Sweep 56
4 4 Using your Attenuator as a Variable Back Reflector
Using your Attenuator as a Variable Back Reflector This chapter describes how you can use your attenuator as a variable back reflector. An example using the back reflector kit (option 203 with option 201) is given at the end of the chapter.
Using your Attenuator as a Variable Back Reflector Configuring the Hardware 4.1 Configuring the Hardware To use the attenuator as a back reflector, you need to set up the hardware as shown in the figure below. NOTE If this your first time to use the attenuator as a back reflector, you first need to make some measurements. These require other setups before setting up the hardware as shown below (see “Setting Up the Software” on page 60).
Using your Attenuator as a Variable Back Reflector Setting Up the Software 4.2 Setting Up the Software There are four factors that influence the back reflection of the attenuator. These are 1. the insertion loss of the attenuator (INS LOSS), 2. the return loss of the attenuator (RL INPUT), 3. the reference return loss you are using (RL REF), and 4. the filter attenuation.
Using your Attenuator as a Variable Back Reflector Setting Up the Software To start setting up the Back Reflector application 1. Press BACK REFL. After pressing this the first parameter (INS LOSS) is ready to for editing. 2. Edit the value insertion loss with the Modify keys. 3. Press BACK REFL. 4. Edit the value reference return loss with the Modify keys. Figure 4-2 Editing the Value for the Reference Return Loss 5. Press BACK REFL. 6. Edit the value attenuator return loss with the Modify keys.
Using your Attenuator as a Variable Back Reflector Example, Setting a Return Loss If you have already set up the application, and are currently operating the instrument as an attenuator, 1. Press BACK REFL, and then, 2. Press EXEC. Figure 4-3 Executing the Back Reflector Application The value shown at the top left of the display is the return loss of the instrument. You can edit the value of the return loss with the Modify keys. 4.
Using your Attenuator as a Variable Back Reflector Example, Setting a Return Loss 1. Configure the hardware as shown in the figure below: Figure 4-4 Hardware Configuration for Variable Return Loss a. Connect the instrument to the electric supply. b. Switch on the instrument. 2. Reset the instrument. NO T E If someone else is using this instrument, please check with them before resetting, or store their setting for later recall. a. Press RECALL. b. Press EXEC. 3.
Using your Attenuator as a Variable Back Reflector Example, Setting a Return Loss 64
5 5 Setting Up the System
Setting Up the System This chapter describes how to set the various system parameters for your attenuator.
Setting Up the System Setting the GPIB Address 5.1 Setting the GPIB Address To set the GPIB address of the attenuator 1. Press SYST. 2. Edit the value for ADDRESS using the Modify keys. Resetting the GPIB Address To reset ADDRESS, press and hold SYST until the value resets (this takes approximately two seconds). ADDRESS resets to 28. 5.2 Selecting the Wavelength Calibration and Its Function The attenuation at any point on the filter is wavelength dependent.
Setting Up the System Selecting the Wavelength Calibration and Its Function Setting the Function of the Wavelength Calibration This compensation can be used • to reposition the filter so that the attenuation stays constant, or • to change the attenuation factor on the display to show the wavelength dependence. You use this to set the wavelength for an unknown source (you alter the wavelength until the displayed attenuation matches the measured attenuation).
Setting Up the System Selecting the Wavelength Calibration and Its Function Selecting the Wavelength Calibration Data You enter the user wavelength calibration data over the GPIB (see “User Calibration Commands” on page 123). Using your own wavelength calibration data, you can use the attenuator to compensate for the total wavelength dependence of your hardware configuration.
Setting Up the System Selecting the Through-Power Mode 5.3 Selecting the Through-Power Mode In the through-power mode, the instrument shows the power that gets through the attenuator on the display (that is the power at the output) rather than the attenuation. When you select the through-power mode the attenuation factor (in dB) becomes the value for the through-power (in dBm). That is, if the attenuation factor is at 32.
Setting Up the System Setting the Display Brightness Deselecting the Through-Power Mode When you switch the through-power mode off, the last set calibration factor becomes active, and the attenuation factor is set so that the filter attenuation does not change. 1. Press SYST repeatedly until THRUPOWR is shown at the bottom of the display. 2. Select OFF to switch off the through-power mode.
Setting Up the System Selecting the Setting used at Power-On 5.5 Selecting the Setting used at Power-On This parameter selects the instrument setting that is used at poweron. 1. Press SYST repeatedly until P ON SET is shown at the bottom of the display. 2. Use Modify keys to select the setting. LAST is the setting that was in use when the instrument was switched off. DEFAULT is the default setting. a number is the number of the setting location where the user has saved a setting.
Setting Up the System Selecting the Shutter State at Power On LOCKOUT means that the shutter cannot be enabled or disabled (Local Lock Out) while the instrument is being operated over the GPIB. Resetting the ENB/DIS Lock Out To reset SHUTTER, press and hold SYST until the value resets (this takes approximately two seconds). SHUTTER resets to NORMAL. 5.7 Selecting the Shutter State at Power On This selects whether the shutter is open or closed at power-on. 1.
Setting Up the System Setting the Display Resolution 5.8 Setting the Display Resolution This parameter sets the resolution of the attenuation factor and the calibration factor on the screen. 1. Press SYST repeatedly until RESOLUT is shown at the bottom of the display. 2. Use Modify keys to select the setting. 1/100 sets a resolution of 0.01. 1/1000 sets a resolution of 0.001.
6 6 Storing and Recalling Settings
Storing and Recalling Settings This chapter describes how to store instrument settings to memory, and how to recall them. A setting consists of the wavelength, calibration and attenuation factors, all the application parameters, and the system parameters with the exceptions of the display resolution, the power on setting, and the GPIB address and command set.
Storing and Recalling Settings Storing the Setting 6.1 Storing the Setting To store the current instrument setting 1. Press STORE. 2. Select the location where you want to store the setting, using the ⇑ or the ⇓. 3. Press EXEC. 6.2 Recalling a Setting Resetting the Instrument To reset the instrument, you should recall the default setting 1. Press RECALL. The DEFAULT location is shown on the display. Figure 6-1 The Display when Recalling the Default Setting 2. Press EXEC.
Storing and Recalling Settings Recalling a Setting 1. Press RECALL. 2. Select the location from which you want to recall the setting, using the ⇑ or the ⇓. 3. Press EXEC.
7 7 Programming the Attenuator
Programming the Attenuator This chapter gives general information on how to control the attenuator remotely. Descriptions for the actual commands for the attenuator are given in the following chapters. The information in these chapters is specific to the attenuator, and assumes that you are already familiar with programming the GPIB.
Programming the Attenuator GPIB Interface 7.1 GPIB Interface The interface used by the attenuator is the GPIB (General Purpose Interface Bus). This is the interface used for communication between a controller and an external device, such as the attenuator. The GPIB conforms to IEEE standard 488-1978, ANSII standard MC 1.1 and IEC recommendation 625-1. If you are not familiar with the GPIB, then refer to the following books: • Hewlett-Packard Company.
Programming the Attenuator GPIB Interface • The SCPI Consortium. Standard Commands for Programmable Instruments. Published periodically by various publishers. To obtain a copy of this manual, contact your Agilent Technologies representative. The attenuator interfaces to the GPIB as defined by the IEEE Standards 488.1 and 488.2. The table shows the interface functional subset that the attenuator implements.
Programming the Attenuator Setting the GPIB Address 7.2 Setting the GPIB Address You can only set the GPIB address from the front panel. See “Setting the GPIB Address” on page 67. The default GPIB address is 28. 7.3 Returning the Instrument to Local Control If the instrument has been operated in remote the only keys you can use are Locala and ENB/DIS. The Local key returns the instrument to local control. Local does not operate if local lockout has been enabled.
Programming the Attenuator How the Attenuator Receives and Transmits Messages b. Clears Bit 7 (MSB). 2. No modification is made inside strings or binary blocks. Outside strings and binary blocks, the following modifications are made: a. Lower-case characters are converted to upper-case. b. The characters 0016 to 0916 and 0B16 to 1F16 are converted to spaces (2016). c. Two or more blanks are truncated to one. 3.
Programming the Attenuator Some Notes about Programming and Syntax Diagram Conventions If more than 29 errors are put into the queue, the message ’-350 ’ is placed as the last message in the queue. 7.5 Some Notes about Programming and Syntax Diagram Conventions A program message is a message containing commands or queries that you send to the attenuator. The following are a few points about program messages: • You can use either upper-case or lower-case characters.
Programming the Attenuator Some Notes about Programming and Syntax Diagram Conventions The first colon can be left out for the first command or query in your message. That is, the example given above could also be sent as INP:WAV 1313. Command and Query Syntax All characters not between angled brackets must be sent exactly as shown. The characters between angled brackets (<…>) indicate the kind of data that you send, or that you get in a response. You do not type the angled brackets in the actual message.
8 8 Remote Commands
Remote Commands This chapter gives a list of the remote commands, for use with the GPIB. In the remote command descriptions the parts given in upper-case characters must be given. The parts in lower-case characters can also be given, but they are optional.
Remote Commands Units 8.1 Units The units and all the allowed mnemonics are given in the table below. Table 8-1 Units and Allowed Mnemonics Unit Default Allowed Mnemonics deciBel DB DB deciBel/1mW DBM DBM DBMW meter M PM, NM, UM, MM, M Where units are specified with a command, only the Default is shown, by the full range of mnemonics can be used. 8.
Remote Commands Command Summary Command *OPC? *OPT? *RCL *RST *SAV *SRE *SRE? *STB? *TST? *WAI Parameter/ Response Min Max 0 9 1 0 0 0 0 9 255 255 255 65535 Table 8-3 Function Operation Complete Query Options Query Recall Instrument Setting Reset Command Save Instrument Setting Service Request Enable Command Service Request Enable Query Read Status Byte Query Self Test Query Wait Command Command List Command Parameter Re
Remote Commands Command Summary Command :LCMode :LCMode? :INPut :OFFSet :DISPlay :OFFSet? :OFFSet? MIN :OFFSet? DEF :OFFSet? MAX Parameter Response |MIN|DE DB F|MAX |MIN|DE F|MAX :WAVelength? :WAVelength? MIN :WAVelength? DEF :WAVelength? MAX :OUTPut :POWer :POWer? :POWer? MIN :POWer? DEF :POWer? MAX :OUTPut Min Max Default -99.999dB 99.999dB 0.000dB 1200nm 1650nm 1310nm 0.000dB† 60.000dB† 0.
Remote Commands Command Summary Command [:STATe] [:STATe?] :APOWeron :APOWeron? :STATus :OPERation [:EVENt]? :CONDition? :ENABle :ENABle? :NTRansition :NTRansition? :PTRansition :PTRansition? :QUEStionable [:EVENt]? :CONDition? :ENABle :ENABle? :NTRansition :NTRansition? :PTRansition :PTRansition? :PRESet :SYSTem :ERRor? :UCALibration :STARt Parameter Response Unit Min Max -32768 32767 OFF|ON|0|1 0|1 DIS|LAST|0|1 0|1 <
Remote Commands The Common Commands Command :STARt? :STATe :STATe? :STOP :VALue :VALue? Parameter Response Unit Min Max Default ,, M,M OFF|ON|0|1 0|1 DB DB -99.999dB 99.999dB † These are specified minimum and maximum values, with the calibration factor (:INPut:OFFSet) set to zero. Actual values depend on the instrument, and the calibration factor. ‡ These values are interdependent start value + ((numberofstep-1) × step value) ≤ 1650nm 8.
Remote Commands The Common Commands The following figure shows how the registers are organized. Figure 8-1 Common Status Registers * The questionable and operation status trees are described in “STATus Commands” on page 114. NO T E Unused bits in any of the registers return 0 when you read them. SRQ, The Service Request A service request (SRQ) occurs when a bit in the Status Byte register goes from 0 → 1 AND the corresponding bit in the Service Request Enable Mask is set.
Remote Commands The Common Commands poll. The RQS bit is not affected by the condition that caused the SRQ. The serial poll command transfers the value of the Status Byte register to a variable. *CLS Syntax *CLS Definition The *CLS command clears the following: • Error queue • Standard event status register (ESR) • Status byte register (STB) After the *CLS command the instrument is left waiting for the next command.
Remote Commands The Common Commands • By sending a value of zero The register is not changed by the *RST and *CLS commands. Table 8-4 The Event Status Enable Register BIT MNEMONIC BIT VALUE 7 Power On 128 6 User Request 64 5 Command Error 32 4 Execution Error 16 3 Device dependent Error 8 2 Query Error 4 1 Request Control 2 0 Operation Complete 1 *ESE? The standard event status enable query returns the contents of the standard event status enable register.
Remote Commands The Common Commands Table 8-5 The Standard Event Status Register BITS MNEMONICS BIT VALUE 7 Power On 128 6 User Request 64 5 Command Error 32 4 Execution Error 16 3 Device Dependent Error 8 2 Query Error 4 1 Request Control 2 0 Operation Control 1 Example OUTPUT 728;"*ESR?" ENTER 728; A$ *IDN? Syntax *IDN? Definition The identification query commands the instrument to identify itself over the interface. Response: HEWLETT-PACKARD, HP8156A, mmmmmmmmmm, n.
Remote Commands The Common Commands *OPC Syntax *OPC Definition The instrument parses and executes all program message units in the input queue and sets the operation complete bit in the standard event status register (ESR). This command can be used to avoid filling the input queue before the previous commands have finished executing. *OPC? This query causes all the program messages in the input queue to be parsed and executed. Once it has completed it places an ASCII ’1’ in the output queue.
Remote Commands The Common Commands (High performance, high return loss version), the string returned is High Performance, 0, High Return Loss. Example OUTPUT 728;"*OPT?" ENTER 728;A$ *RCL Syntax *RCL 0 ≤ location ≤ 9 Definition An instrument setting from the internal RAM is made the actual instrument setting (this does not include GPIB address or parser, the attenuation resolution or the power on setting). You recall user settings from locations 1-9. See “*SAV” on page 100.
Remote Commands The Common Commands • Service request enable register (SRE) • Standard event status enable register (ESE) The commands and parameters of the reset state are listed in the following table. Table 8-6 Reset State (Default Setting) Parameter Reset Value Attenuation Factor Calibration Factor Wavelength Sweep Start Stop Step Dwell Back Refl. Ins.
Remote Commands The Common Commands Definition The instrument setting is stored in RAM. You can store settings in locations 1-9. The scope of the saved setting is identical with the scope of the standard setting described in “*RST” on page 99. Example OUTPUT 728;"*SAV 3" *SRE Syntax *SRE 0 ≤ value ≤ 255 Definition The service request enable command sets bits in the service request enable register that enable the corresponding status byte register bits.
Remote Commands The Common Commands NO T E Bit 6 cannot be masked. *SRE? The service request enable query returns the contents of the service request enable register. Example OUTPUT 728;"*SRE 48" OUTPUT 728;"*SRE?" ENTER 728; A$ *STB? Syntax *STB? Definition The read status byte query returns the contents of the status byte register.
Remote Commands The Common Commands *TST? Syntax *TST? Definition The self-test query commands the instrument to perform a self-test and place the results of the test in the output queue. Returned value: 0 ≤ value ≤ 65535.
Remote Commands DISPlay Commands The self-test does not require operator interaction beyond sending the *TST? query. Example OUTPUT 728;"*TST?" ENTER 728; A$ *WAI Syntax *WAI Definition The wait-to-continue command prevents the instrument from executing any further commands, all pending operations are completed. Example OUTPUT 728;"*WAI" 8.4 DISPlay Commands :DISPlay:BRIGhtness Syntax :DISPlay:BRIGhtness Description This command sets the brightness of the display.
Remote Commands DISPlay Commands Description The query returns the brightness of the display, where 0 means least brightness, and 1 means full brightness. Example OUTPUT 728;":DISP:BRIG 0.5" OUTPUT 728;":DISP:BRIG?" ENTER 728;A$ :DISPlay:ENABle Syntax :DISPlay:ENABle OFF|ON|0|1 Description This command enables or disables the front panel display. Set the state to OFF or 0 to switch the display off, set the state to ON or 1 to switch the display on. The default is for the display to be on.
Remote Commands INPut Commands 8.5 INPut Commands :INPut:ATTenuation Syntax :INPut:ATTenuation [DB]|MIN|DEF|MAX Description This command sets the attenuation factor for the instrument. The attenuation factor is used, with the calibration factor (see ) to set the filter attenuation.
Remote Commands INPut Commands OUTPUT 728;":INP:ATT?" ENTER 728;A$ :INPut:LCMode Syntax :INPut:LCMode OFF|ON|0|1 Description This command sets the function of the wavelength calibration. That is, whether the wavelength calibration data is to be used to reposition the filter to keep the attenuation factor constant, or to alter the attenuation factor with the filter kept in a fixed position. Switch the mode on (using OFF or 0) to keep the attenuation value fixed, and alter the filter position.
Remote Commands INPut Commands Description This command sets the calibration factor for the instrument. This factor does not affect the filter attenuation. It is used to offset the values for the attenuation factor. The calibration factor is used, with the attenuation factor (see “:INPut:ATTenuation” on page 106) to set the attenuation of the filter.
Remote Commands INPut Commands Description This command sets the calibration factor for the instrument from the current attenuation factor. The filter attenuation is not affected. The offset is set so that the attenuation factor becomes zero.
Remote Commands OUTPut Commands The minimum value for the wavelength is 1200nm. The default value is 1310nm. The maximum value is 1650nm. :INPut:WAVelength? Syntax :INPut:WAVelength? [ MIN|DEF|MAX] Description The query returns the current wavelength, in meters. By sending MIN, DEF, or MAX with the query the minimum, default or maximum value possible for the wavelength is returned. Example OUTPUT 728;":INP:WAV 1550nm" OUTPUT 728;":INP:WAV?" ENTER 728;A$ 8.
Remote Commands OUTPut Commands calibration factor (see ) to set the attenuation factor to the required value for use as the base value for the through-power CalNew = (Through - PowerBase - Att) + CalCurrent When you switch the absolute power mode OFF, the last set calibration factor becomes active, and the attenuation factor is set so that the filter attenuation does not change.
Remote Commands OUTPut Commands Example OUTPUT 728;":INP:ATT?" ENTER 728; Att OUTPUT 728;":INP:OFFS?" ENTER 728; Cal Newcal = Basepow - Att + Cal OUTPUT 728;":INP:OFFS ";Newcal OUTPUT 728;":OUTP:APM ON" OUTPUT 728;":OUTP:APM?" ENTER 728;A$ :OUTPut:POWer Syntax :OUTPut:POWer [DBM]|MIN|DEF|MAX Description This command sets the through-power for the instrument. The through-power is used to set the attenuation of the filter.
Remote Commands OUTPut Commands :OUTPut:POWer? Syntax :OUTPut:POWer? [ MIN|DEF|MAX] Description The query returns the current through-power, in dBm. ThroughPower(dBm) = ThroughPowerBase(dBm) + Attfilter@Base(dB) - Attfilter(dB) By sending MIN, DEF, or MAX with the query the minimum, default or maximum value possible for the through-power is returned. Example OUTPUT 728;":OUTP:POW 32.
Remote Commands STATus Commands :OUTPut:[:STATe]:APOWeron Syntax :OUTPut[:STATe]:APOWeron DIS|LAST|0|1 Description This command sets the state of the output shutter at power on, that is, whether it is closed, or takes the state at power-off. DIS or 0 closes the shutter at power on, and no power gets through. LAST or 1 sets the shutter to the state at power-off.
Remote Commands STATus Commands • A condition register (CONDition), which contains the current status.This register is updated continuously. It is not changed by having its contents read. • The event register (EVENt), which contains the output from the transition registers. The contents of this register are cleared when it is read. • A positive transition register (PTRansition), which, when enabled, puts a 1 into the event register, when the corresponding bit in the condition register goes from 0 to 1.
Remote Commands STATus Commands Figure 8-2 The Status Registers :STATus:OPERation:CONDition? Syntax :STATus:OPERation:CONDition? Description This query reads the contents of the OPERation:CONDition register. Only three bits of the condition register are used: 116 • Bit 1, which is 1 when the motor that positions the attenuator filter is settling. • Bit 3, which is 1 while the instrument is performing an attenuation sweep.
Remote Commands STATus Commands • Example Bit 7, which is 1 after the instrument has repositioned the attenuator filter due to a change in temperature. OUTPUT 728;":STAT:OPER:COND?" ENTER 728;A$ :STATus:OPERation:ENABle Syntax :STATus:OPERation:ENABle Description This command sets the bits in the ENABle register that enable the contents of the EVENt register to affect the Status Byte (STB).
Remote Commands STATus Commands Example • Bit 1, which is 1 when the motor that positions the attenuator filter is settling. • Bit 3, which is 1 while the instrument is performing an attenuation sweep. • Bit 7, which is 1 after the instrument has repositioned the attenuator filter due to a change in temperature. OUTPUT 728;":STAT:OPER?" ENTER 728;A$ :STATus:OPERation:NTRansition Syntax :STATus:OPERation:NTRansition Description This command sets the bits in the NTRansition register.
Remote Commands STATus Commands Description This command sets the bits in the PTRansition register. Setting a bit in this register enables a positive transition (0→1) in the corresponding bit in the CONDition register to set the bit in the EVENt register. :STATus:OPERation:PTRansition? Syntax :STATus:OPERation:PTRansition? Description This query returns the current contents of the OPERation:PTRansition register.
Remote Commands STATus Commands a bit in this register to 1 enables the corresponding bit in the EVENt register to affect bit 3 of the Status Byte. :STATus:QUEStionable:ENABle? Syntax :STATus:QUEStionable:ENABle? Description This query returns the current contents of the QUEStionable:ENABle register.
Remote Commands STATus Commands Description This command sets the bits in the NTRansition register. Setting a bit in this register enables a negative transition (1→0) in the corresponding bit in the CONDition register to set the bit in the EVENt register. :STATus:QUEStionable:NTRansition? Syntax :STATus:QUEStionable:NTRansitio n? Description This query returns the current contents of the QUEStionable:NTRansition register.
Remote Commands SYSTem Commands OUTPUT 728;":STAT:QUES:PTR?" ENTER 728;A$ :STATus:PRESet Syntax :STATus:PRESet Description This command presets all the enable registers and transition filters for both the OPERation and QUEStionable nodes. Example • All the bits in the ENABle registers are set to 0 • All the bits in the PTRansition registers are set to 1 • All the bits in the NTRansition registers are set to 0 OUTPUT 728;":STAT:PRES" 8.
Remote Commands User Calibration Commands Example OUTPUT 728;":SYST:ERR?" ENTER 728;A$ 8.9 User Calibration Commands Entering user calibration data can only be done over the GPIB. This is done using the commands described here. Entering the User Calibration Data To enter the data for the user calibration data, you will need a power meter, a tunable laser source and the attenuator. If you are going to use the attenuator to compensate for some other device, this should be included in the setup as well.
Remote Commands User Calibration Commands This is done with the :UCALibration:STARt command 10. λ=λStart 11. Repeat the following steps until λ>λStop. a. Set λ on the tunable laser source, the attenuator and the power meter. b. Read the power (Power). c. Power = -Power. d. Set the user calibration value to Power. This is done with the :UCALibration:VALue command e. λ = λ + λStepsize 12. Stop the user calibration.
Remote Commands User Calibration Commands The error -221 indicates that there is a conflict inherent in the start parameters for the user calibration. That is, the start_value and/or step_value is invalid. The error 201 indicates that the user calibration is currently on, and calibration data cannot be changed. Switch the user calibration state off (see “:UCALibration:STATe” on page 125) and try again.
Remote Commands User Calibration Commands Switch the state off (using OFF or 0) to use the factory-made calibration. Switch the state on (using ON or 1) to use the user calibration data. NO T E If you are using the instrument in an environment where the temperature changes, you should not use the user wavelength calibration data, as it lacks correction for temperature changes. :UCALibration:STATe? Syntax :UCALibration:STATe? Description The query returns the current wavelength calibration state.
Remote Commands User Calibration Commands The value that you send with this command, is the attenuation for the next calibration point. The wavelength of the calibration point is updated automatically. The first piece of data is for the start wavelength specified by the :UCAL:START command. The default value for the value is dB. The value can be in the range 0.001dB to 99.999dB.
Remote Commands User Calibration Commands 128
9 9 Programming Examples
Programming Examples This chapter gives some programming examples. The language used for the programming is BASIC 5.1 Language System used on HP 9000 Series 200/300 computers. These programming examples do not cover the full command set for the instrument. They are intended only as an introduction to the method of programming the instrument. The programming examples use the GPIB.
Programming Examples Example 1 - Checking Communication 9.1 Example 1 - Checking Communication Function This program sends a queries, and displays the reply. Listing 10 20 30 40 50 60 70 80 90 100 !-----------------------------------! ! Agilent 8156A Programming Example 1 ! ! A Simple Communications Check ! !-----------------------------------! ! Definitions and initialisations ! 110 Att=728 This statement sets the address of the attenuator.
Programming Examples Example 2 - Status Registers and Queues 9.2 Example 2 - Status Registers and Queues Function This program sends a commands and queries typed in by the user. The contents of the status byte and the standard event status register are displayed. These registers are updated for each new command, and each time a Service ReQuest (SRQ) occurs. The number of the most recent error, and the most recent contents of the output queue is also displayed.
Programming Examples Example 2 - Status Registers and Queues 340 PRINT TABXY(4,10);" ^ ^ ^ ^ ^ ^ ^ ^" 350 PRINT TABXY(4,11);" +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+" 360 PRINT TABXY(4,12);" : : : : : : : : :" 370 PRINT TABXY(4,13);" +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+" 380 PRINT TABXY(4,14);" PON URQ CME EXE DDE QYE RQC OPC" 390 PRINT TABXY(40,12);"Standard Event Status Register" 400 PRINT TABXY(4,16);"Last Command :" 410 PRINT TABXY(4,17);"Last Error :" 420 PRINT TABXY(4,18);"Output Queue :" 430 ! 440 ! Start the p
Programming Examples Example 2 - Status Registers and Queues 890 Value=Value-Bit 900 ! 910 ! If MAV is set, then get and display the output que ue contents 920 ! 930 IF Z=0 THEN 940 IF Bit=16 THEN 950 ENTER Att;A$ 960 PRINT TABXY(21,18);A$ 970 END IF 980 END IF 990 ! 1000 ! If the bit is not set, then display 0 1010 ! 1020 ELSE 1030 PRINT TABXY(Xpos,Ypos);"0" 1040 END IF 1050 ! 1060 ! Set up for the next iteration 1070 ! 1080 Bit=Bit DIV 2 1090 Xpos=Xpos+4 1100 UNTIL Bit=0 1110 ! 1120 ! Now that the status
Programming Examples Example 3 - Measuring and Including the Insertion Loss 9.3 Example 3 - Measuring and Including the Insertion Loss Function This program performs the same sequence as the sample session given in chapter 1. That is, to measure the insertion loss of the attenuator, and put this into the calibration factor to that it is included in all future loss values. Requirements This example uses the Agilent 8156A Attenuator, with a 8153A multimeter with one source and one sensor.
Programming Examples Example 3 - Measuring and Including the Insertion Loss b. Connect both instruments to the electric supply. c. Switch on both instruments. NO T E Under normal circumstances you should leave the instruments to warmup. (The multimeter needs around 20 minutes to warmup. The attenuator needs around 45 minutes with the shutter open to warmup.) Warming up is necessary for accuracy of the sensor, and the output power of the source. d.
Programming Examples Example 3 - Measuring and Including the Insertion Loss Listing 10 !----------------------------------------20 ! 30 ! Programming Example 3 40 ! 50 ! Measuring the Insertion Loss and using it as a Cal factor 60 ! 70 !----------------------------------------80 ! 90 ! Definitions and Initializations 100 ! 110 Att=728 120 Mm=722 130 ! 140 OUTPUT Mm;"*rst;*cls" 150 OUTPUT Att;"*rst;*cls" 160 ! 170 ! Setup the instruments, with the output of the source connected 180 ! to the input of the sen
Programming Examples Example 3 - Measuring and Including the Insertion Loss 530 ! 540 OUTPUT Mm;"sour2:pow:stat on" 550 OUTPUT Att;"outp on" 560 ! 570 ! Read in the power now (the insertion loss of the attenuat or) 580 ! and put it into the calibration factor on the attenuator.
Programming Examples Example 4 - Running an Attenuation Sweep 9.4 Example 4 - Running an Attenuation Sweep Function We set up the instrument to sweep from 0dB to 5dB with an interval of 0.5dB, dwelling for a second at each attenuation factor. The requirements are an Agilent 8156A Attenuator.
Programming Examples Example 4 - Running an Attenuation Sweep 140
A A Installation
Installation This appendix provides installation instructions for the attenuator. It also includes information about initial inspection and damage claims, preparation for use, packaging, storage, and shipment.
Installation Safety Considerations A.1 Safety Considerations The attenuator is a Class 1 instrument (that is, an instrument with an exposed metal chassis directly connected to earth via the power supply cable). The symbol used to show a protective earth terminal in the instrument is Before operation, review the instrument and manual for safety markings and instructions. You must follow these to ensure safe operation and to maintain the instrument in safe condition. A.
Installation AC Line Power Supply Requirements A.3 AC Line Power Supply Requirements The Agilent Technologies 8156A can operate from any singlephase AC power source that supplies between 100V and 240V at a frequency in the range from 50 to 60Hz. The maximum power consumption is 40VA with all options installed. Line Power Cable In accordance with international safety standards, this instrument has a three-wire power cable.
Installation AC Line Power Supply Requirements • Before switching on the instrument, the protective earth terminal of the instrument must be connected to a protective conductor. You can do this by using the power cord supplied with the instrument. • It is prohibited to interrupt the protective earth connection intentionally. The following work should be carried out by a qualified electrician. All local electrical codes must be strictly observed.
Installation AC Line Power Supply Requirements Replacing the Battery This instrument contains a lithium battery. Replacing thebattery should be carried out only by a qualified electrician or by Agilent Technologies service personnel. There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or an equivalent type (Agilent part number 1420-0394). Discard used batteries according to local regulations. Replacing the Fuse There is one fuse in this instrument.
Installation AC Line Power Supply Requirements Figure A-3 Releasing the Fuse Holder 2. Pull the fuse holder out of the instrument. Figure A-4 The Fuse Holder 3. Check and replace the fuse as necessary making sure that the fuse is always in the top position of the fuse holder, and the bridge is in the bottom. 4. Place the fuse holder back in the instrument, and push it until the catch clicks back into place.
Installation Operating and Storage Environment A.4 Operating and Storage Environment The following summarizes the Agilent 8156A operating environment ranges. In order for the attenuator to meet specifications, the operating environment must be within these limits. WA RN IN G The Agilent 8156A is not designed for outdoor use. To prevent potential fire or shock hazard, do not expose the instrument to rain or other excessive moisture.
Installation Switching on the Attenuator rear, and at least 25mm (1inch) of clearance at each side. Failure to provide adequate air clearance may result in excessive internal temperature, reducing instrument reliability. Figure A-5 Correct Positioning of the Attenuator A.5 Switching on the Attenuator When you switch on the attenuator it goes through self test. This is the same as the self test described in “*TST?” on page 103. A.
Installation Optical Output coupling ratio, and its wavelength dependence, for the Monitor Output yourself. A.7 Optical Output CA UT I O N The attenuator is supplied with either a straight contact connector or an angled contact connector (Option 201). Make sure that you only use the correct cables with your chosen output. See “Connector Interfaces and Other Accessories” on page 158 for further details on connector interfaces and accessories.
Installation GPIB Interface Connector The following figure shows the connector and pin assignments. Connector Part Number: 1251-0293 Figure A-6 GPIB Connector CA UT I O N Agilent Technologies products delivered now are equipped with connectors having ISO metric- threaded lock screws and stud mounts (ISO M3.5×0.6) that are black in color. Earlier connectors may have lock screws and stud mounts with imperial-threaded lock screws and stud mounts (6-32 UNC) that have a shiny nickel finish.
Installation Claims and Repackaging GPIB Logic Levels The attenuator GPIB lines use standard TTL logic, as follows: • True = Low = digital ground or 0Vdc to 0.4Vdc • False = High = open or 2.5Vdc to 5Vdc All GPIB lines have LOW assertion states. High states are held at 3.0Vdc by pull-ups within the instrument. When a line functions as an input, it requires approximately 3.2mA to pull it low through a closure to digital ground.
Installation Claims and Repackaging 1. Wrap instrument in heavy paper or plastic. 2. Use strong shipping container. A double wall carton made of 350-pound test material is adequate. 3. Use enough shock absorbing material (3 to 4 inch layer) around all sides of the instrument to provide a firm cushion and prevent movement inside container. Protect control panel with cardboard. 4. Seal shipping container securely. 5. Mark shipping container FRAGILE to encourage careful handling. 6.
Installation Claims and Repackaging 154
B B Accessories
Accessories 156
Accessories Instrument and Options B.1 Instrument and Options Table B-1 Mainframe Description Model No.
Accessories Connector Interfaces and Other Accessories • GPIB Cable, 10833D, 0.5 m (1.6 ft.) • GPIB Adapter, 10834A, 2.3 cm extender. B.3 Connector Interfaces and Other Accessories The attenuator is supplied with one of three connector interface options.
Accessories Connector Interfaces and Other Accessories Figure B-1 Straight Contact Connector Configuration Table B-2 Connector Interface Description Agilent Model No.
Accessories Connector Interfaces and Other Accessories Option 201, Angled Contact Connector If you want to use angled contact connectors (such as FC/APC, Diamond HRL-10, DIN, or SC/APC) to connect to the instrument, you must 1. attach your connector interface (see the list of connector interfaces below) to the interface adapter, 2. then connect your cable.
Accessories Connector Interfaces and Other Accessories Table B-3 Connector Interface Description AgilentModel No.
Accessories Connector Interfaces and Other Accessories 162
C C Specifications
Specifications 164
Specifications Definition of Terms C.1 Definition of Terms Attenuation accuracy The difference between the displayed loss and →excess loss. Conditions: Attenuation adjustment prior to measurement. That is, adjustment of the measured attenuation at the highest setting so that it equals the attenuation setting, for example by adjusting the wavelength setting. Measurement: with laser source or LED and optical power meter. Attenuation range The range of displayed attenuations.
Specifications Definition of Terms Measurement: either with a fiber-loop type polarization controller using the polarization scanning method, or with a wavelength type polarization controller using the Mueller method. Polarization mode dispersion The change of transit time caused by changing the input polarization state, expressed in fs (10-15 seconds). Conditions: Generation of all polarization states (covering the entire Poincar sphere. Measurement: with the Agilent Technologies polarization analyzer.
Specifications Specifications C.2 Specifications Specifications describe the instrument’s warranted performance. Supplementary performance characteristics describe the instrument’s non-warranted typical performance. Specifications are measured at 1310nm and 1550nm using a laser source, single-mode fiber and Agilent 81000AI or Agilent 81000SI connector interfaces.
Specifications Specifications Table C-2 • [2] • [3] • [4] Includes insertion loss of two HMS-10 connectors. Typical variation over temperature range <0.3dBpp. Measured at constant temperature. With narrow linewidth lasers, such as DFB lasers, power fluctuations up to 0.2dBpp may occur.
Specifications Specifications Table C-3 Multimode Options Option 350 Wavelength Range 1200 - 1650nm Attenuation Range 60dB (excluding insertion loss) Fiber Type 50/125µm multimode Connector Type straight contact Return Loss[1] 22dB Insertion Loss (typ)[2] 3dB Attenuation Accuracy (linearity)[3] typical <±0.1dB <±0.08dB Repeatability typical <±0.01dB <±0.005dB • [1] • [2] • [3] Typical, depends on performance of external connector Includes insertion loss of two HMS-10 connectors.
Specifications Specifications λ: Entering of wavelength for automatic correction of attenuation using typical correction values. Cal: Offset factor to adjust the attenuation factor on the display within ±99.999dB range. Disp→Cal: Sets attenuation value on the display to 0.000dB. Swp: Manual or automatic up or down attenuation sweep. Start, stop, step size and dwell time (not for manual sweep) can be entered. Back Refl: Desired return loss (back reflection level) can be entered.
Specifications Other Specifications Installation Category (IEC 664) II Pollution Degree (IEC 664) 2 Specifications valid at non-condensing conditions. Power: 100/110/220/240Vrms, ±10%, 90VA max, 48-400Hz. Battery Back-Up: (for non-volatile memory) With the instrument switched off all current modes and data will be maintained for at least 10 years after delivery when stored at room temperature. Dimensions: 89mm H, 21s2.35mm W, 345mm D (3.5”×8.36”×13.6”) Weight: net 5.3kg (11.8lbs), shipping 9.6kg (21.
Specifications Declaration of Conformity C.4 Declaration of Conformity Manufacturer: Agilent Technologies Deutschland GmbH Optical Communication Measurement Division Herrenberger Str.
D D Performance Tests
Performance Tests The procedures in this section test the optical performance of the instrument. The complete specifications to which the Agilent Technologies 8156A is tested are given in Appendix C. All tests can be performed without access to the interior of the instrument. The performance tests referspecifically to tests using the Diamond HMS-10/Agilent connector.
Performance Tests Equipment Required D.1 Equipment Required The equipment required for the performance test is listed in the table below. Any equipment which satisfies the critical specifications of the equipment given in the table, may be substituted for the recommended models.
Performance Tests Equipment Required Table D-1 Equipment Required for the Agilent 8156A (1310/1550nm) Instrument/Accessory Recommended HP/ Agilent Model Required for Option 100 101 121 201 221 350 x x x x x x x - x - x - x - x - x 81532A 81534A x x x x x x x x x x x - 81000BR 81000UM 8156A Option 203 1005-0255 x x - x x - x x - x x x x - x x x x x x - - - Power Meter 8153A Mainframe with CW Laser Sources 1310/1550nm 81552SM and 81553SM or 81554SM LED Source 1300nm
Performance Tests Test Record D.2 Test Record Results of the performance test may be tabulated on the Test Record provided at the end of the test procedures. It is recommended that you fill out the Test Record and refer to it while doing the test. Since the test limits and setup information are printed on the Test Record for easy reference, the record can also be used as an abbreviated test procedure (if you are already familiar with the test procedures).
Performance Tests Performance Test Technology (NIST), will be covered in a manual change supplement, or revised manual. Such specifications supersede any that were previously published. D.5 Performance Test The performance test given in this section includes the Total Insertion Loss Test, the Attenuation Accuracy Test, the Attenuation Repeatability Test, and the Return Loss Test. Perform each step in the order given, using the corresponding test equipment.
Performance Tests Performance Test I. Total Insertion Loss Test Specifications Agilent 8156A Insertion loss (including both connectors) Option 100 Option 101 Option 121 Option 201 Option 221 Option 350 Typ. <5.4dB <3.0dB <4.2dB <3.0dB <3.3dB <3.0dB Carry out the following Insertion Loss Test at 1310nm and 1550nm with single-mode fibers using the the equipment listed previously. 1. Turn the instruments on and allow the instruments to warm up. 2.
Performance Tests Performance Test Figure D-2 Total Insertion Loss Test Setup 1, Options 201, 221 Figure D-3 Total Insertion Loss Test Setup 1, Option 350 3. On the DUT, press and hold ATT to reset the attenuation to minimum (any attenuation shown on the display is due to the calibration factor). 4. Zero the Power-meter and select Autorange. Display [dB] 5. Enable the laser source and set Display to Reference on the power meter. 6.
Performance Tests Performance Test Figure D-4 Total Insertion Loss Test Setup 2, Options 100, 101, 121 Figure D-5 Total Insertion Loss Test Setup 2, Options 201, 221 181
Performance Tests Performance Test Figure D-6 Total Insertion Loss Test Setup 2, Option 350 7. Enable the attenuator output and record the power meter reading (in dB) in the Test Record and check that it is within specifications. II. Linearity/Attenuation Accuracy Test Specifications Linearity Agilent 8156A Option 100 Option 101 Option 121 Option 201 Option 221 Option 350 <±0.2dB <±0.1dB <±0.1dB <±0.1dB <±0.1dB <±0.
Performance Tests Performance Test 1. Set the attenuator as follows: λ as required CAL to 0.00 dB ATT to 0.00 dB 2. Connect the equipment as shown in the appropriate Total Insertion Loss Test Setup 2. NO T E Use a tape to fix the fibers on the table. Don’t touch the fibers during the measurement to prevent changes of state of polarization. 3. Zero the power meter channel and make sure that the parameters are set as follows: λ as required CAL to 0.000 dB T to 500ms 4.
Performance Tests Performance Test 0.00dB REFERENCE 1 dB 2 dB 3 dB 5 dB 6 dB 7 dB 9 dB 10 dB 11 dB 13 dB 14 dB 24 dB 44 dB 54 dB 60 dB 4 dB 8 dB 12 dB 34 dB III. Attenuation Repeatability Test Specifications Agilent 8156A Repeatability after any parameter has been changed and reset <±0.01 dB. Use the same equipment, test setup and instrument settings as used for the Attenuation Accuracy test (see the appropriate Total Insertion Loss Test Setup 2). 1.
Performance Tests Performance Test IV. Return Loss Test Options 100, 101, and 121 Specifications Agilent 8156A Return Loss Option 100 Option 101 Option 121 >35dB >45dB >45dB 1. Make sure that all connectors are carefully cleaned. 2. Connect the source to the HP 81534A Input. Attach the high return loss connector of the patchcord to the Output (the high return loss connector on these cables is the connector with the orange sleeve). Using tape, fix the cables to the table.
Performance Tests Performance Test 6. Press PARAM to select the [lambda] parameter. Edit this parameter and set it to the current wavelength of the source. 7. Enable the source. 8. Press PARAM to select the CAL REF parameter (the current value for the known return loss is displayed with R: at the side of the character field). 9. Attach the Agilent 81000BR Reference Reflector to the patchcord. (Use the Agilent 81000UM, with a connector interface to do this) 10. Set the reflection reference (R:) to 0.
Performance Tests Performance Test Figure D-8 Return Loss Test Setup 2, Options 100, 101 Figure D-9 Return Loss Test Setup 2, Option 121 Options 201 and 221 Specifications Agilent 8156A Return Loss Option 201 Option 221 >60dB >60dB 187
Performance Tests Performance Test 1. Make sure that all connectors are carefully cleaned. 2. Connect the source to the HP 81534A Input. Attach the high return loss connector of the patchcord to the Output (the high return loss connector on these cables is the connector with the orange sleeve). Using tape, fix the cables to the table. Figure D-10 Return Loss Test Setup 1, Options 201, 221 3. Make sure that the instrument has warmed up. 4.
Performance Tests Performance Test 11. Press DISP→REF (the value read should now be 0.98dB, the same as the value entered for R:). 12. Press PARAM to select the REF AUX parameter. 13. Terminate the cable by wrapping the fiber five times around the shaft of a screwdriver. 14. Press DISP→REF (the instrument sets the termination parameter). 15. Disable the DUT. NO T E If you have the monitor option (option 221), make sure that the cable at the monitor output is terminated. 16.
Performance Tests Performance Test Figure D-12 Return Loss Test Setup 2, Option 221 190
Performance Tests V. Polarization Dependent Loss (PDL): Optional D.6 V.
Performance Tests V. Polarization Dependent Loss (PDL): Optional 2 Instead of a standard HP 81521B+ Depolarizing Filter Agilent 81000DF, an HP 81521B #001 can also be used, as this option is especially designed for low PDL. Polarization Dependant Loss Test (Mueller method) 1. Connect the equipment as shown in Figure D-13 a. Make sure that the connectors, lenses and detector windows are clean. Refer to the cleaning procedure. b. Ensure that the instruments have warmed up.
Performance Tests V. Polarization Dependent Loss (PDL): Optional CA UT I O N The patchcord from the source to the polarization controller - with the isolator - must not move during and between all measurements. The patchcords between the polarization controller and the optical head must not move from the beginning of the reference measurements until these are finished. 3. Zero the 8153A. a. Ensure that the laser source is switched off. b. Press MENU to change the Measure Mode. c.
Performance Tests V. Polarization Dependent Loss (PDL): Optional already selected. c. Modify the filter setting to find the maximum signal transmission through the polarization controller: • Select the most significant digit by using the cursor key. Use the Modify knob to adjust the displayed angle slowly until the power reading on the multimeter shows the maximum value. • Select the next digit with the cursor key.
Performance Tests V. Polarization Dependent Loss (PDL): Optional a. Select the λ/2 Retarder Plate. Press λ/2 b. Modify the λ/2 plate setting to the same angle as the polarization filter found in item 6c. c. Press ENTER d. Note the angle as "λ/2 Plate Setting, Linear Horizontal Polarization" in the Test Record. Determine settings for Linear Vertical, Linear Diagonal, and Right Hand Circular Polarization 9.
Performance Tests V. Polarization Dependent Loss (PDL): Optional approximated: Linear vertical λ Linear diagonal λ/4 Plate RH circular λ/4 Plate λ/2 Plate λ/2 Plate λ/4 Plate λ/2 Plate 1560nm 1.2° 45.6° 0.8° 22.9° 44° -16.5° 1552nm 0.7° 45.4° 0.5° 22.7° 44.4° -15.9° 1540nm 0° 45° 0° 22.5° 45° -15.1° The associated Test record will look like this by adding the appropriate values to those of the Linear Horizontal polarized light.
Performance Tests V. Polarization Dependent Loss (PDL): Optional b. Linear Vertical polarized light. • Set the λ/4 and λ/2 Retarder Plates to the "corrected wavelength dependent positions" for Linear Vertical polarized light. You need to select the λ/4 and λ/2 Retarder plates by pressing λ/4 and λ/2 respectively. Type the appropriate value and press ENTER after each entry. • Read the power that is displayed on the power meter and note it as P02 in the test record. c. Linear Diagonal polarized light.
Performance Tests V. Polarization Dependent Loss (PDL): Optional CA UT I O N The patchcords between the polarization controller and the optical head must not move until the measurements are finished. 12. Set the 8156A Attenuator (DUT) to 0dB using the modify keys. Figure D-14 PDL Test Setup 2: Power after DUT 13. Measure the optical power after the DUT a. Linear Horizontal polarized light. • Set the λ/4 and λ/2 Retarder Plates for Linear Horizontal polarization.
Performance Tests V. Polarization Dependent Loss (PDL): Optional • Read the power that is displayed on the power meter and note it as PDUT01 in the test record. b. Linear Vertical polarized light. • Set the λ/4 and λ/2 Retarder Plates to the "corrected wavelength dependent positions" for Linear Vertical polarized light. You need to select the λ/4 and λ/2 Retarder plates by pressing λ/4 and λ/2 respectively. Type the appropriate value and press ENTER after each entry.
Performance Tests V. Polarization Dependent Loss (PDL): Optional 14. Calculate a. the Mueller coefficients b. the Minimum and Maximum transmission, and finally c. the Polarization Dependent Loss (PDL) as described in the test record. 15. Laser set up for the higher wavelength a. Set the laser source to 1310nm (nominal) b. Switch the laser on and allow to settle for about 5 minutes c. Note the actual wavelength in the test record d. Repeat steps 6. to 14. for this wavelength as well.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Page 1 of 8 Test Facility: ______________________________________ Report No. ____________________________ ______________________________________ Date: ____________________________ ______________________________________ Customer: ____________________________ ______________________________________ Tested By: ____________________________ Model: Agilent 8156A Attenuator Serial No.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 2 of 8 Model __ __________ Module Report No. _______ Test Equipment Used: Description 1. Power Meter Date ________ Model No. 8153A Trace No. Cal. Due Date ________ __ / ___ /___ 2a1. CW Laser Sources 1310nm 81552SM ________ __ / ___ /___ 2a2. CW Laser Sources 1550nm 81553SM ________ __ / ___ /___ 2b. CW Laser Sources 1310/1550nm or 81554SM ________ __ / ___ /___ 3.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 3 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Maximum Measurement Test Test Description Minimum Uncertainty No. performed at _________________nm Spec. Result Spec. I. Total Insertion Loss Test dB ±0.60dB typ. <4.5dB measured at __________________nm with singlemode fiber II. _________ 5.4 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 4 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. ±0.05dB Attenuation Setting: 11dB 10.8dB _________ 11.2dB 12dB 11.8dB _________ 12.2dB 13dB 12.8dB _________ 13.2dB 14dB 13.8dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 5 of 8 Model Agilent 8156A Attenuator Option 100 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 6 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <4.5dB measured at __________________nm with SM fiber II. _________ 5.4 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 7 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. ±0.05dB Attenuation Setting: 11dB 10.8dB _________ 11.2dB 12dB 11.8dB _________ 12.2dB 13dB 12.8dB _________ 13.2dB 14dB 13.8dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 8 of 8 Model Agilent 8156A Attenuator Option 100 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 2 of 8 Model __ __________ Module Report No. _______ Test Equipment Used: Description 1. Power Meter Date ________ Model No. 8153A Trace No. Cal. Due Date ________ __ / ___ /___ 2a1. CW Laser Sources 1310nm 81552SM ________ __ / ___ /___ 2a2. CW Laser Sources 1550nm 81553SM ________ __ / ___ /___ 2b. CW Laser Sources 1310/1550nm or 81554SM ________ __ / ___ /___ 3.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 3 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <2.5dB measured at __________________nm with singlemode fiber II. _________ 3.0 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 4 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. (cont.) ±0.05dB Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 5 of 8 Model Agilent 8156A Attenuator Option 101 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 6 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <2.5dB measured at __________________nm with SM fiber II. _________ 3.0 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 7 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty ±0.05dB II. Linearity/Att. Acc. (cont.) Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 8 of 8 Model Agilent 8156A Attenuator Option 101 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description 1. Power Meter Model No. 8153A Trace No. Cal. Due Date ________ __ / ___ /___ 2a1. CW Laser Sources 1310nm 81552SM ________ __ / ___ /___ 2a2. CW Laser Sources 1550nm 81553SM ________ __ / ___ /___ 2b. CW Laser Sources 1310/1550nm or 81554SM ________ __ / ___ /___ 3.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 3 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <3.3dB measured at __________________nm with singlemode fiber II. _________ 4.2 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 4 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. (cont.) ±0.05dB Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 5 of 8 Model Agilent 8156A Attenuator Option 121 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 6 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <3.3dB measured at __________________nm with SM fiber II. _________ 4.2 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 7 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty ±0.05dB II. Linearity/Att. Acc. (cont.) Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 8 of 8 Model Agilent 8156A Attenuator Option 121 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 2 of 8 Model __ __________ Module Report No. _______ Test Equipment Used: Description 1. Power Meter Date ________ Model No. 8153A Trace No. Cal. Due Date ________ __ / ___ /___ 2a1. CW Laser Sources 1310nm 81552SM ________ __ / ___ /___ 2a2. CW Laser Sources 1550nm 81553SM ________ __ / ___ /___ 2b. CW Laser Sources 1310/1550nm 81554SM ________ __ / ___ /___ 3.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 3 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <2.5dB measured at __________________nm with singlemode fiber II. _________ 3.0 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 4 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. (cont.) ±0.05dB Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 5 of 8 Model Agilent 8156A Attenuator Option 201 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Result Maximum Measurement Spec. Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 6 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <2.5dB measured at __________________nm with SM fiber II. _________ 3.0 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 7 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty ±0.05dB II. Linearity/Att. Acc. (cont.) Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 8 of 8 Model Agilent 8156A Attenuator Option 201 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 2 of 8 Model __ __________ Module Report No. _______ Test Equipment Used: Description 1. Power Meter Date ________ Model No. 8153A Trace No. Cal. Due Date ________ __ / ___ /___ 2a1. CW Laser Sources 1310nm 81552SM ________ __ / ___ /___ 2a2. CW Laser Sources 1550nm 81553SM ________ __ / ___ /___ 2b. CW Laser Sources 1310/1550nm 81554SM ________ __ / ___ /___ 3.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 3 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <3.3dB measured at __________________nm with singlemode fiber II. _________ 4.2 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 4 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. (cont.) ±0.05dB Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 5 of 8 Model Agilent 8156A Attenuator Option 221 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 6 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <3.3dB measured at __________________nm with SM fiber II. _________ 4.2 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 7 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty ±0.05dB II. Linearity/Att. Acc. (cont.) Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 8 of 8 Model Agilent 8156A Attenuator Option 221 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: IV. 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 2 of 5 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1. Power Meter 8153A ________ __ / ___ /___ 2. LED Source 1300nm 81542SM ________ __ / ___ /___ 3. Opt Sensor Module 81532A ________ __ / ___ /___ 4. Connector Interface (4ea) 81000AI ________ __ / ___ /___ 5.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 3 of 5 Model Agilent 8156A Attenuator Option 350 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty I. Total Insertion Loss Test dB ±0.60dB typ. <3.0dB measured at __________________nm with multimode fiber II. _________ 3.9 dB ±0.05dB Linearity/Att. Acc.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 4 of 5 Model Agilent 8156A Attenuator Option 350 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement No. performed at _________________nm Spec. Result Spec. Uncertainty II. Linearity/Att. Acc. (cont.) ±0.05dB Attenuation Setting: 11dB 10.9dB _________ 11.1dB 12dB 11.9dB _________ 12.1dB 13dB 12.9dB _________ 13.1dB 14dB 13.9dB _________ 14.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 5 of 5 Model Agilent 8156A Attenuator Option 350 Test Test Description No. performed at _________________nm III. Att. Repeatability Test No. _______________ Date_______________ Minimum Maximum Measurement Spec. Result Spec. Uncertainty ±0.01dB Attenuation Setting: 1dB Disp→ Ref -0.01dB _________ + 0.01dB 5dB Disp→ Ref -0.01dB _________ + 0.01dB 12dB Disp→ Ref -0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test (optional) Page 1 of 6 Test Facility: ______________________________________ Report No.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 2 of 6 Test Equipment Used: Description 1. 2. 3. 4a. 4b. 4c. 5. HP/Agilent Model No. Trace No. Cal.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 3 of 6 Model Agilent 8156A Optical Attenuator Option: _____________________ Date ________ No.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 4 of 6 Minimum and maximum transmission: 2 + m 2 + m 2 = ____________________________ T Max = m 11 + m 12 13 14 2 + m 2 + m 2 = ____________________________ T Min = m 11 – m 12 13 14 Polarization Dependent Loss PDLdB = 10log(TMax/TMin) ____________________dBpp 244 Maximum Specification #100 #101, #201 #121, #221 0.15dBpp 0.08dBpp 0.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 5 of 6 Model Agilent 8156A Optical Attenuator Option: _____________________ Date ________ No.
Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 6 of 6 Minimum and maximum transmission 2 + m 2 + m 2 = ____________________________ T Max = m 11 + m 12 13 14 2 + m 2 + m 2 = ____________________________ T Min = m 11 – m 12 13 14 Polarization Dependent Loss PDLdB = 10log(TMax/TMin) ____________________dBpp 246 Maximum Specification #100 #101, #201 #121, #221 0.15dBpp 0.08dBpp 0.
E E Cleaning Information
Cleaning Information The following Cleaning Instructions contain some general safety precautions, which must be observed during all phases of cleaning. Consult your specific optical device manuals or guides for full information on safety matters. Please try, whenever possible, to use physically contacting connectors, and dry connections. Clean the connectors, interfaces, and bushings carefully after use. Agilent Technologies assume no liability for the customer’s failure to comply with these requirements.
Cleaning Information Safety Precautions E.1 Safety Precautions Please follow the following safety rules: • Do not remove instrument covers when operating. • Ensure that the instrument is switched off throughout the cleaning procedures. • Use of controls or adjustments or performance of procedures other than those specified may result in hazardous radiation exposure. • Make sure that you disable all sources when you are cleaning any optical interfaces.
Cleaning Information What do I need for proper cleaning? means that they can cover a part of the end of a fiber core, and as a result will reduce the performance of your system. Furthermore, the power density may burn dust into the fiber and cause additional damage (for example, 0 dBm optical power in a single mode fiber causes a power density of approximately 16 million W/m2). If this happens, measurements become inaccurate and non-repeatable. Cleaning is, therefore, an essential yet difficult task.
Cleaning Information What do I need for proper cleaning? Dust and shutter caps All of Agilent Technologies’ lightwave instruments are delivered with either laser shutter caps or dust caps on the lightwave adapter. Any cables come with covers to protect the cable ends from damage or contamination. We suggest these protected coverings should be kept on the equipment at all times, except when your optical device is in use. Be careful when replacing dust caps after use.
Cleaning Information What do I need for proper cleaning? hygiene products (for example, a supermarket or a chemist’s shop). You may be able to obtain various sizes of swab. If this is the case, select the smallest size for your smallest devices. Ensure that you use natural cotton swabs. Foam swabs will often leave behind filmy deposits after cleaning. Use care when cleaning, and avoid pressing too hard onto your optical device with the swab.
Cleaning Information What do I need for proper cleaning? cleaning purposes has soft bristles, which will not produces scratches. There are many different kinds of pipe cleaner available from tobacco shops. The best way to use a pipe cleaner is to push it in and out of the device opening (for example, when cleaning an interface). While you are cleaning, you should slowly rotate the pipe cleaner. Only use pipe cleaners on connector interfaces or on feed through adapters.
Cleaning Information What do I need for proper cleaning? • Microscope with a magnification range about 50X up to 300X • Ultrasonic bath • Warm water and liquid soap • Premoistened cleaning wipes • Polymer film • Infrared Sensor Card Microscope with a magnification range about 50X up to 300X A microscope can be found in most photography stores, or can be obtained through or specialist mail order companies. Special fiberscopes are available from suppliers of splicing equipment.
Cleaning Information What do I need for proper cleaning? water, as this may cause mechanical stress, which can damage your optical device. Ensure that your liquid soap has no abrasive properties or perfume in it. You should also avoid normal washing-up liquid, as it can cover your device in an iridescent film after it has been air-dried. Some lenses and mirrors also have a special coating, which may be sensitive to mechanical stress, or to fat and liquids. For this reason we recommend you do not touch them.
Cleaning Information Preserving Connectors E.4 Preserving Connectors Listed below are some hints on how best to keep your connectors in the best possible condition. Making Connections Before you make any connection you must ensure that all cables and connectors are clean. If they are dirty, use the appropriate cleaning procedure. When inserting the ferrule of a patchcord into a connector or an adapter, make sure that the fiber end does not touch the outside of the mating connector or adapter.
Cleaning Information Cleaning Instrument Housings and dirty the surface of the device. In addition, the characteristics of your device can be changed and your measurement results affected. E.5 Cleaning Instrument Housings Use a dry and very soft cotton tissue to clean the instrument housing and the keypad. Do not open the instruments as there is a danger of electric shock, or electrostatic discharge.
Cleaning Information How to clean connectors E.7 How to clean connectors Cleaning connectors is difficult as the core diameter of a singlemode fiber is only about 9 µm. This generally means you cannot see streaks or scratches on the surface. To be certain of the condition of the surface of your connector and to check it after cleaning, you need a microscope. In the case of scratches, or of dust that has been burnt onto the surface of the connector, you may have no option but to polish the connector.
Cleaning Information How to clean connector adapters 1. Moisten a new cotton-swab with isopropyl alcohol. 2. Clean the connector by rubbing the cotton-swab over the surface using a small circular movement. 3. Take a new, dry soft-tissue and remove the alcohol, dissolved sediment and dust, by rubbing gently over the surface using a small circular movement. 4. Blow away any remaining lint with compressed air.
Cleaning Information How to clean connector interfaces 1. Clean the adapter by rubbing a new, dry cotton-swab over the surface using a small circular movement. 2. Blow away any remaining lint with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter: 1. Moisten a new cotton-swab with isopropyl alcohol. 2. Clean the adapter by rubbing the cotton-swab over the surface using a small circular movement. 3.
Cleaning Information How to clean bare fiber adapters the surface using a small circular movement. 3. Blow away any remaining lint with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the interface: 1. Moisten a new pipe-cleaner with isopropyl alcohol. 2. Clean the interface by pushing and pulling the pipe-cleaner into the opening. Rotate the pipe-cleaner slowly as you do this. 3. Moisten a new cotton-swab with isopropyl alcohol. 4.
Cleaning Information How to clean lenses 1. Blow away any dust or dirt with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter: 1. Clean the adapter by pushing and pulling a new, dry pipe-cleaner into the opening. Rotate the pipe-cleaner slowly as you do this. CA UT I O N Be careful when using pipe-cleaners, as the core and the bristles of the pipe-cleaner are hard and can damage the adapter. 2.
Cleaning Information How to clean instruments with a fixed connector interface Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the lens: 1. Moisten a new cotton-swab with isopropyl alcohol. 2. Clean the lens by rubbing the cotton-swab over the surface using a small circular movement. 3. Using a new, dry cotton-swab remove the alcohol, any dissolved sediment and dust. 4. Blow away any remaining lint with compressed air. E.
Cleaning Information How to clean instruments with an optical glass plate Never try to open the instrument and clean the optical block by yourself, because it is easy to scratch optical components, and cause them to be misaligned. E.13 How to clean instruments with an optical glass plate Some instruments, for example, the optical heads from Agilent Technologies have an optical glass plate to protect the sensor.
Cleaning Information How to clean instruments with a recessed lens interface interface. The invisible emitted light is project onto the card and becomes visible as a small circular spot. Preferred Procedure Use the following procedure on most occasions. 1. Clean the interface by rubbing a new, dry cotton-swab over the surface using a small circular movement. 2. Blow away any remaining lint with compressed air.
Cleaning Information How to clean instruments with a recessed lens interface Keep your dust and shutter caps on, when your instrument is not in use. This should prevent it from getting too dirty. If you must clean such instruments, please refer the instrument to the skilled personnel of Agilent’s service team. Preferred Procedure Use the following procedure on most occasions. 1. Blow away any dust or dirt with compressed air. If this is not sufficient, then 2.
Cleaning Information How to clean optical devices which are sensitive to mechanical stress and pressure E.16 How to clean optical devices which are sensitive to mechanical stress and pressure Some optical devices, such as the Agilent 81000BR Reference Reflector, which has a gold plated surface, are very sensitive to mechanical stress or pressure. Do not use cotton-swabs, soft-tissues or other mechanical cleaning tools, as these can scratch or destroy the surface.
Cleaning Information How to clean metal filters or attenuator gratings E.17 How to clean metal filters or attenuator gratings This kind of device is extremely fragile. A misalignment of the grating leads to inaccurate measurements. Never touch the surface of the metal filter or attenuator grating. Be very careful when using or cleaning these devices.
Cleaning Information Additional Cleaning Information • How to clean bare fiber ends • How to clean large area lenses and mirrors How to clean bare fiber ends Bare fiber ends are often used for splices or, together with other optical components, to create a parallel beam. The end of a fiber can often be scratched. You make a new cleave. To do this: 1. Strip off the cladding. 2. Take a new soft-tissue and moisten it with isopropyl alcohol. 3. Carefully clean the bare fiber with this tissue. 4.
Cleaning Information Additional Cleaning Information 1. Blow away any dust or dirt with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the lens: CA UT I O N Only use water if you are sure that your device does not corrode. Do not use hot water as this can lead to mechanical stress, which can damage your device. Make sure that your liquid soap has no abrasive properties or perfume in it, because they can scratch and damage your device.
Cleaning Information Other Cleaning Hints Alternative Procedure B If your lens is sensitive to water then: 1. Moisten the lens or the mirror with isopropyl alcohol. 2. Take a new, dry soft-tissue and remove the alcohol, dissolved sediment and dust, by rubbing gently over the surface using a small circular movement. 3. Blow away remaining lint with compressed air. E.
Cleaning Information Other Cleaning Hints and so on. To be absolutely certain that a cleaning paper is applicable, please ask the salesperson or the manufacturer. Immersion oil and other index matching compounds Do not use immersion oil or other index matching compounds with optical sensors equipped with recessed lenses. They are liable to dirty the detector and impair its performance. They may also alter the property of depiction of your optical device, thus rendering your measurements inaccurate.
F F Error messages
Error Messages 274
Error Messages Display Messages F.1 Display Messages FAILnnnn indicates that the self test has failed. The number nnnn is a four digit hexadecimal number that indicates which part of the self test has failed.
Error Messages GPIB Messages F.2 GPIB Messages Command Errors These are error messages in the range -100 to -199. They indicate that a syntax error has been detected by the parser in a command, such as incorrect data, incorrect commands, or misspelled or mistyped commands. A command error is signaled by the command error bit (bit 5) in the event status register. -100 Command error This indicates that the parser has found a command error but cannot be more specific.
Error Messages GPIB Messages -108 Parameter not allowed More parameters were received for a command than were expected. -109 Missing parameter Fewer parameters were received than the command requires. -110 Command header error A command header is the mnemonic part of the command (the part not containing parameter information. This error indicates that the parser has found an error in the command header but cannot be more specific.
Error Messages GPIB Messages -121 Invalid character in number An invalid character was found in numeric data (note, this may include and alphabetic character in a decimal data, or a "9" in octal data). -123 Exponent too large The exponent must be less than 32000. -124 Too many digits The mantissa of a decimal number can have a maximum of 255 digits (leading zeros are not counted). -128 Numeric data not allowed Another data type was expected for this command.
Error Messages GPIB Messages -141 Invalid character data The character data is incorrect or inappropriate. -144 Character data too long Character data can have a maximum of 12 characters. -148 Character data not allowed Character data was found where none is allowed. -150 String data error This error indicates that the parser has found an error in string data but cannot be more specific.
Error Messages GPIB Messages Execution Errors These are error messages in the range -200 to -299. They indicate that an execution error has been detected by the execution control block. An execution error is signaled by the execution error bit (bit 4) in the event status register. -200 Execution error This indicates that an execution error has occurred but the control block cannot be more specific.
Error Messages GPIB Messages -223 Too much data The block, expression, or string data was too long for the instrument to handle. -224 Illegal parameter value One value from a list of possible values was expected. The parameter received was not found in the list. -240 Hardware error Indicates that a command could not be executed due to a hardware error but the control block cannot be more specific.
Error Messages GPIB Messages -314 Save/recall memory lost The nonvolatile data saved by the *SAV command has been lost. -315 Configuration memory lost The nonvolatile configuration data saved by the instrument has been lost. -330 Self-test failed Further information about the self-test failure is available by using *TST?. -350 Queue overflow The error queue has overflown. This error is written to the last position in the queue, no further errors are recorded.
Error Messages GPIB Messages -430 Query DEADLOCKED A condition causing a deadlocked query has occurred (for example, both the input and the output buffer are full and the device cannot continue). -440 Query UNTERMINATED after indefinite response Two queries were received in the same message. The error occurs on the second query if the first requests an indefinite response, and was already executed.
Error Messages GPIB Messages 284
Index Symbols .....................95, 96, ................101 *ESE .....................95 *ESE? ...................96 *ESR? ...................96 *IDN? ...................97 *OPC ....................95, 98 *OPC? ...................95, 98 *OPT? ...................98 *RCL ....................99 *RST .....................96, 99, ................101 *SAV ....................100 *SRE .....................101 *SRE? ...................102 *STB? ...................102 *TST? ...................103 *WAI ...........
Index Resetting ...........50 E Earth .....................144 Editing Non-numeric .......30 Numeric ............30 .................105, 117, ..............119 ENABle register ......115, 122 ENABle? ................105, 117, ..............120 Error queue .............84, 95, ................122 ERRor? ..................122 Errors ....................122, 275 OPERation .............117 QUEStionable .........120 EVENt register ........115 ......33, 34, .....68, 116, ...118 Settling .............
Index Local .....................83 LOCKOUT .............72 Long form ..............85 NTRansition? ..........118, P ON SET O M ..................107, 108 OFFSet? .................108 OPERation .............116, 117, ..............118, 119 Operation ...............143 Operation Complete .98 Operation status .......101, 102, ..............114, 115, ..............122 Condition register .116 Enable register ....117 Event register ......117 OFFSet Maintenance ...........143 MANUAL ..............
Index ..101, 102, ..............114, 115, ..............122 Condition register .119 Enable register ....119, 120 Event register ......120 Short form Questionable status Negative transition register 120, ...121 Positive transition register 121 R Repeatability ...........166 Request Service .......94 Resetting the instrument 54, 63, ................77 .............74 Default .............74 Resetting ...........74 Return loss .............166 Calculation .........32 RL INPUT ..............60 Default ...
Index T Temperature considerations User Temperature Cooling .............148 Operating ..........148 Storing ..............148 69 .................34, 67, .....69 V Temperature variation 116, 118 Wavelength calibration data ...........69 The .......................60 the ........................60 Through power ........112, 113 Default .............113 Maximum ..........113 Minimum ..........113 33, 70, ................110, 111 THRUPOWR ..........33, 70, ................71 Default .............
