ES10L / ES10XL/ Fx-ES10 Optical CATV Transmitter 1550 nm Operating Manual Rev.
Safety instructions Attention: Please read the instructions completely and carefully before putting the transmitter into operation! All operation steps should be carried out in the prescribed sequence! Improper putting into operation can cause serious danger for persons or can damage the devices. INVISIBLE LASER RADIATION DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS CLASS 1M LASER PRODUCT MAXIMUM OUTPUT POWER: 20.
Warranty All products manufactured by BKtel communications GmbH are guaranteed to be free from defect in material and workmanship for a period of two (2) years from the date of shipment.
TABLE OF CONTENTS SAFETY INSTRUCTIONS 8 • General Safety Instructions 8 • Laser Safety Classification 9 1 TYPE INFORMATION 12 2 GENERAL DESCRIPTION 13 2.1 Introduction 13 2.2 Principle of Operation 14 2.3 2.3.1 2.3.2 Principle of Element Management Webbrowser Communication NMS Communication 17 18 19 3 TECHNICAL SPECIFICATIONS 20 3.1 ES10XL 20 3.2 ES10L 23 3.3 Fx-ES10XL 25 3.4 3.4.1 3.4.2 I/O Ports ES10La/ES10XLa ((a-versions) ES10Lb/ES10XLb (b-versions) 26 26 28 3.5 3.
4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 Operating Conditions Optical output signal Applying an appropriate RF input signal AGC Modes Adjusting Regulation Mode ITU Frequency Adjustments in DWDM Applications (XL only) Optical Power On /Off SBS suppression setting (XL only) 38 38 38 40 41 41 41 41 4.4 Push Button / LCD Display 43 4.5 LED Alarm and Warning Messages 45 5 CONTROLLING A NEC 48 5.1 Communicating with the NEC 49 5.2 Devices Update 51 5.3 Configure Slots (optionally) 52 5.
.5.11 Setting Redundancy Mask 6.5.12 Selecting a Redundancy Mask 6.5.13 Setting CATV Signal Channel Spacing 87 88 90 6.6 Limits Menus 91 6.7 Setting an Event Mask for Webserver and SNMP Interface 93 6.8 Properties Menu 94 7 CONTROLLING OTHER DEVICES WITH A NEC 96 8 MAINTENANCE 97 9 TROUBLESHOOTING 97 10 RELEASES 98 10.1 ES10 Hardware Releases 10.1.1 Hardware Releases for ES10La/ES10XLa 10.1.2 Hardware Releases for ES10Lb/ES10XLb 98 98 98 10.2 10.2.1 10.2.2 10.2.
DOCUMENT STATUS Document Operating Manual ES10 Revision Date 00 31.07.2008 Illies Document created 01 01.10.2009 Illies - NEC appl. SW release 3.0.0 - ES10 / ES26 appl. SW release 3.6 - CSO regulation mode revised - Gain adjustment range revised - Alarm & Warning Flags revised 02 02.08.2010 Illies - NEC appl. SW release 3.0.5 - ES10 / ES26 appl. SW release 3.
SAFETY INSTRUCTIONS NOTICE • Read this chapter containing safety instructions before operating the system for the first time or carrying out any modifications to the device. It is also recommended to re–read the chapter at certain intervals in order to refresh your knowledge about safety. The device may only be operated by personnel who have received the necessary training in handling optical and electrical equipment and have been instructed in laser safety.
• Laser Safety Classification Class 1M Product. WARNING The device is classified according to the international standard IEC 60825-1:2007; European Version EN 60825-1:2007 and German Version DIN EN 60825:2008-05). It is assigned to Class 1M The laser radiation is emitted in the invisible infra–red spectrum range. It is potentially hazardous when viewed using an optical instrument.
• Location of Laser Apertures The location of the emitting fiber connector(s) at the front or rear side (optional) of the device can be seen in chapter 3.6 and 3.7 of this operating manual. Emission is indicated by an LED on the front panel as shown in chapter 3.6. In case of a not connected fiber connector laser radiation will be emitted as a divergent optical beam (divergence angle Φ = 0.23 rad) which is 4° off the fiber axis to the right in direction of beam propagation.
Parts List This document contains the description for the following units: Unit Transmitter unit I/O ports Description Modular external modulated 1550 nm optical transmitter basic unit for CATV ES10L ES10XL Fx-ES10XL Not for ES10L-types Power supply + fan module 100 VAC ... 240 VAC Power supply + fan module Power supply + fan module ±36 VDC ...
1 TYPE INFORMATION Transmitter characteristics Type Opt. output power SBS Threshold Freq. Plan NMS Interface I/O ports Wavelength RF-input Opt. connector Opt. Output OEM Version Power supply Types Property Key Meaning Version ES10 Fx-ES10 XL L 70 85 100 165 190 PFQ344044 C42 N77 PAL84 xxx A B I X 15xx.xx 1 2 3 4 5 F R 0 OEM 230/230 48/48 230 48 230/48 47…1006 MHz Type Opt. output power SBS threshold Frequency plan NMS interface I/O ports Wavelength Optical connector RF-input / opt.
2 GENERAL DESCRIPTION 2.1 Introduction The optical transmitter ES10 represents a family of externally modulated 1550 nm DFB laser transmitters. These products have been developed to fulfill the requirements of modern Hybrid Fiber Coax networks for the transmission of CATV, cable phone and cable data signals. There are currently 2 different base versions available: • ES10L for applications with moderate fiber length of ≤ 65 km. This version features a SBS threshold of 16.
The optical interface can be ordered with optical connectors as specified in in chapter 1. Without the need of using special tools it is possible to change the optical interface by replacing the optical connector interface plate by another one as specified. For connecting the transmitter with an EMS (element management system) or a NMS (network management system) an Ethernet 10/100 Base-T Ethernet interface is available at the rear side of the ES10 (a-version).
The AGC can be turned off for a constant gain operation in order to tailor the CNR/CSO/CTB performance to the used frequency plan and the requirements of the customer. The function is accessible via the push buttons or the Ethernet interface. The central core of the transmitter is the electrooptical modulator working as a Mach-Zehnderinterferometer. The light from the laserdiode is coupled into an optical strip waveguide.
> 8 MHz) all known European and Chinese frequency plans are supported: CENELEC frequency plan, all regular 6 and 8 MHz spacing frequency plans as well as the German 7/8 MHz frequency plan.
2.3 Principle of Element Management The interface configuration for Element Management or Network Management systems is shown in the next two figures for the ES10La/ES10XLa with embedded NEC (network element controller = SNMP Proxy Agent) and the ES10L/ES10XLb. Fig. 2.3.1: EMS/NMS Interface (a) ES10La/ES10XLa (b) ES10Lb/ES10XLb The ES10La/ES10XLa versions (ref. to Fig. 2.3.1 a) contain an embedded network element controller (NEC) which works as a SNMP Proxy Agent.
Fig. 2.3.2 shows how the ES10 interface to other devices and a SNMP EMS. The ES10 with embedded NEC (upper right corner) is connected to other (BKtel) devices via the RS485 interface. In the example there is an optical amplifier OVxxxxb (without embedded NEC) in 19”1RU housing (similar to the ES10) and in total 4 subracks interfacing to the RS485 bus. A variety of BKtel devices which can be mounted on these subracks like EDFAs, optical switches, optical transmitters and receivers.
2) by the USB interface as local management terminal (LMT) Also USB local interface and Ethernet interface can be used simultaneously. As soon as the webbrowser establishes the link to the NEC-E, all chassis devices connected to the RS485 bus are listed on the start page. Clicking on a device listed in the menu “Devices” leads to further webpages, which allow supervision and adjustment of the selected device. 2.3.
3 3.1 TECHNICAL SPECIFICATIONS ES10XL Application 4 External modulated 1550 nm DFB laser transmitter 4 Electrical to optical conversion of multi-channel CATV video signals (AM-VSB, FM and QAM signals) 4 Optical downstream transmission in HFC and RF Overlay networks with excellent performance 4 Enables the usage of optical amplifiers (EDFAs) as boosters or repeaters in order to realize large scale HFC or FTTH networks Features 4 Two optical outputs with 8.5 or 10.
General Technical Data Optical connector SC/APC, E2000 Optical fiber Standard single mode 9/125 µm RF connector F female, front or rear side mounted Control interface a-version: Ethernet 10/100 and USB interface b-version: RS485 interface Power supply types (Dual redundant, hot pluggable) 100 ... 240 VAC, 50/60 Hz or ±36 ...
Electrical Properties CATV RF frequency range [MHz] Frequency response flatness 47 ... 862 MHz 47 ... 1006 MHz [dB] [dB] Nom. Input level per TV channel [dBµV] 80 Input level range (per carrier) [dBµV] 78 … 96 (for OMI= 5% per CATV carrier) True RMS input level range [dBm] -16 … +2 (for ALC correctly working with OMItot,rms= 18.6%) Slope range [dB] -2 (cable equivalent) … +8 (cable equalization) RF impedance [Ω] 75 Return loss [dB] > 20 (@ 47 MHz) – 1.
3.2 ES10L Application 4 External modulated 1550 nm DFB laser transmitter 4 Electrical to optical conversion of multi-channel CATV video signals (AM-VSB, FM and QAM signals) 4 Optical downstream transmission in HFC and RF Overlay networks 4 Enables the usage of optical amplifiers (EDFAs) as boosters or repeaters in order to realize HFC or FTTH networks Features 4 Two optical outputs with 7.
General Technical Data Optical connector SC/APC, E2000 Optical fiber Standard single mode 9/125 µm RF connector F female, front or rear side mounted Control interface a-version: Ethernet 10/100 and USB interface b-version: RS485 interface Power supply types (Dual redundant, hot pluggable) 100 ... 240 VAC, 50/60 Hz or ±36 ...
Electrical Properties CATV RF frequency range [MHz] 47 … 862 Frequency response flatness 47 ... 862 MHz [dB] Nom. Input level per TV channel [dBµV] 80 Input level range (per carrier) [dBµV] 78 … 96 (for OMI= 5% per CATV carrier) True RMS input level range [dBm] -16 … +2 (for ALC correctly working with OMItot,rms= 18.6%) Slope range [dB] -2 (cable equivalent) … +8 (cable equalization) RF impedance [Ω] 75 Return loss [dB] > 20 (@ 47 MHz) – 1.
Dimensions 3.4 I/O Ports 3.4.1 ES10La/ES10XLa ((a-versions) The ES10La/ES10XLa is equipped with 2 general purpose I/O and 4 input-only binary mode ports. The ports can be configured via the Webserver (HTTP) interface. The schematics of these ports are given below. Fig. 3.4.1: Schematics of I/O port Document status: Released ES10 Page 26/100 Operating Manual rev. 07, 25.09.
Fig. 3.4.2: Schematics of input-only port Notes: • The maximum voltage applied to all ports should be not below GND level and should not exceed +5 VDC. • The input level for input high should be >1.6 V; the input level for input low has to be < 0.8 V. • The input-only port and the open drain output port have a pull-up resistor of about 100 kΩ towards 3.3 V. • The active low output resistance to GND of the output port is < 210 Ω. The ES10 uses an 8 pin Mini-DIN connector for external Input/Output handling.
Function in ES10 Pin Number Comments of mini-DIN connector GND 2 Ground +5.1 VDC (+/- 5%) (voltage under no-load condition) Input / Output #0 1 Max. 80 mA, protected by a serial Fuse (< 6 Ohms) 5 Used for redundancy switching feature (input port) or as alarm output port. Input / Output #1 7 Either Input or Output, configurable by Software; Input only No.2 3 Input mode configurable by Software Input only No.3 8 Input mode configurable by Software Input only No.
Fig. 3.4.5: ES10Lb/XLb rear side connectors Fig. 3.4.6 shows the view on the 8 port mini-DIN connector Fig. 3.4.6: 8 pin mini-DIN connector pinout: The mini-DIN connector pins are used as described in the following table. Function in ES10L/ES10XL (b-versions only) Pin Number Comments of mini-DIN connector GND 2 Ground +5.1 VDC (+/- 5%) (voltage under no-load condition) Input / Output No.0 1 Max. 80 mA, protected by a serial Fuse (< 6 Ohms) 5 Input / Output No.
• • 3.5 In order to not degrade the EMI performance of the ES10, a shielded cable with the shield connected to pin 2, (GND) of the mini-DIN–connector has to be used. I/O #0 is directly related to the transmitter. If the port is used as an output, alarms related to the transmitter can be accessed on this output. If the port is used as an input it enables easy redundancy switching between two redundant ES10. For details please refer to 6.5.8. EMS / Service Interfaces 3.5.
Item # Function 1 RF-input (optionally available on rear side) 2 RF-monitor output 3 Status LED’s 4 Liquid Crystal Display 5 Push button field for local set-up of transmitter 6, 7 Optical connectors (optionally available on rear side) 3.
It is possible to replace or exchange all of the modules during operation. This offers a big flexibility to the end user in order to customize the ES10 exactly to the actual needs. The necessary outlets for the power supply modules have to be located in the proximity of the device and have to be easily accessible. 3.8.1 100 – 240 VAC module Fig. 3.8.1 provides a view on the 100 – 240 VAC power supply and fan module. There is a AC mains input.
3.8.3 Fan-only module For applications, where only one power supply is required, BKtel offers a fan-only module. Fig. 3.8.3 provides the view on the fan-only module. 327616 SV19" Fan Module The fan-only module can be exchanged during operation (hot plug-in technology) with having neither harming to the equipment nor having any impact on the operation of the transmitter in case of a properly working power supply. Fig. 3.8.3: Fan-only module 3.
4 OPERATING THE ES10 4.1 Handling Optical Components 4.1.1 Handling Optical Fibers The smallest permissible bending radius for fibers used to connect HFC equipment is currently 30 mm (diameter of 60 mm, G652.D) or 15 mm (diameter of 30 mm, G.657.A). A smaller radius significantly increases attenuation of the fiber optic cables and even damages the fibers. Therefore, handle the fibers carefully, especially during installation. 4.1.
Laser Radiation If you inspect the front of the plug when the equipment is switched on, there is a danger of damage to your eyes. WARNING NOTICE Therefore, always switch the equipment off for this kind of work. Use a measuring device to ensure that there is no laser beam emission from the fiber. Do not touch the surface with your fingers when cleaning. Plug pins with imprinted grooves on the front must only be daubed clean using a brush.
4.1.3.1 Cleaning the Plug Pins 1. Fold the cleaning cloth three times. The cloth pad now constitutes an eight–layered cloth. 1 2 3 2. Moisten the folded cloth a little using the cleaning fluid, ensuring that a dry area remains. 3. Place the front surface of the connector, or the connector shaft on the moistened part of the cloth, pressing lightly. Let the cleaning fluid work into the dirt for a short time. 4.
4.1.3.2 Cleaning the Connector NOTICE Cleaning the device connector(s) requires device opening. Since device opening may extinguishes when doing so! damage its function, warranty Therefore, cleaning the connector may be only performed by BKtel manufacturing engineers or BKtel repair engineers. Please send device to BKtel in case you assume dirty device’s adaptors and/or connectors. NOTICE 3 Only clean device’s adaptor and adaptor case when no connector is connected.
4.2 • • • • • • 4.3 Power-Up Sequence Be sure that the ES10 is put into operation under the specified environmental conditions. Avoid temperature shocks after transportation and allow sufficient time to accommodate with the environmental conditions at the operating site. If not already realized install the appropriate power supply + fan modules, respectively fanonly modules. Connect the ES10 to one or two (in case of redundant power supplies) appropriate power supply lines.
N77 (77 PAL) C42 (42 PAL) PAL84 (84 PAL) 18.6 % 18.8 % 19.4 % -16 … +2 dBm -16 … +2 dBm -16 … +2 dBm 74 … 92 dBµV 76 … 94 dBµV 74 … 92 dBµV 78 … 96 dBµV 80 … 98 dBµV 78 … 96 dBµV Table 2. ES10XL RF input leveling This rms level Prms depends on the number of AM-TV, FM-radio and QAM carriers and their individual leveling at ES10 RF input port. It can be calculated, when the number of all carriers and their individual carrier levels are known: PVSB [ dBµV ] − 108.
4.3.3 AGC Modes The built-in RF power meter controls the rms input level and indicates its status at the INPUT LED. There are two RF modes, which can be selected. 4.3.3.1 RF Mode “AGC-on” This mode is the recommended mode for standard operation. As long as the input level is within the working range of the transmitter (specified in Fehler! Verweisquelle konnte nicht gefunden werden.), the transmitter will itself adjust the optimum gain.
4.3.3.2 RF Mode “AGC-off” In this mode, which is for experienced users only, the user has the flexibility to change the gain of the internal RF amplifier by -12 … +5 dB according to his individual requirements. However, this adjustment is changing the RF input sensitivity. The OMItotrms is measured for the applied input signal and the selected gain and can be monitored on the LCD display or via the Ethernet interface.
SBS and SPM are both nonlinear effects in optical fibers and depend on • the launched optical power • the fiber properties (especially fiber loss and mode field diameter) • the link properties (number of splices and total splice loss) Both effects are getting worse with • higher optical power • lower mode field fiber diameter • higher quality, lower loss fiber • fewer, lower loss splices BKtel is testing the SBS and SPM performance of the ES10 with different fiber types and fiber lengths under worst case co
4.4 Push Button / LCD Display Security items When changing a parameter using the LCD interface in unlocked state, you have to enter a four digit numeric keycode to login. The LCD login times out after 5 minutes with no key pressed. The factory default keycode is 1111. NOTE: Changing the keycode to 0000 disables the code and the parameters can be changed without entering a code. Keys default usage ESC key The ESC key is used mainly to cancel operations or to switch back a menu level.
NMS Server menus NMS Server Alarms / Warnings / Infos IP Settings Keycode Properties Date & Time Reset Server Rescan RS485 Logout NMS Server->IP Settings Save Settings IP address Netmask Default router Optical transmitter device menus Alarms / Warnings / Infos Settings SBS Suppression SBS Fiber Length SBS Fiber Type Channel Distance OMI RF Gain Laser Frequency Slope AGC Mode Optical Output Power CSO Regulation Mode I/O Port Mode Redundancy Mask Redundancy Mode Document status: Released Server status in
Parameters RF Input RFtotrms (root-mean-square) input power of CATV input signal If the input power is out of range for the selected OMI- or Gain-settings, an input warning will be generated and the showed value may be not valid. OMI OMItotrms If the electrical input power or the selected gain is out of range for a measureable OMI value, an input warning will be generated and the showed value may be not valid.
IN LED nominal input power LED green input power out of nominal operation LED yellow loss of input power OUT LED LED red nominal output power LED green lack of output power LED yellow loss of output power LED red standby – operation LED dark Table 3. LED display MODULE status Normal operation: MODULE LED green Non urgent alarms: MODULE LED yellow • fan 1 or fan 2 failure • Power supply 1 or power supply 2 failure • Laser cooler current >90 %.
The output power deviates by 3 dB from the adjusted value. The transmitter is still working but with reduced performance. It has to be sent to BKtel for maintenance. Urgent alarm: OUTPUT LED red The output power deviates by 4 dB from the adjusted value. The transmitter is not working according to specification. It has to be sent to BKtel for maintenance. • Document status: Released ES10 Page 47/100 Operating Manual rev. 07, 25.09.
5 CONTROLLING A NEC Jointly with the optical transmitter a network element controller NEC is embedded in the 19’’ housing of the ES10. The NEC allows supervising and controlling the transmitter and other equipment which is connected to the RS485 master interface, using the integrated Ethernet webserver (HTTP) interface. The NEC Ethernet interface has to be connected to a PC either directly via a crossed Ethernet cable or via a LAN.
5.1 Communicating with the NEC If a webbrowser gets in touch with the NEC of the transmitter a webpage as shown below will appear within the webbrowser (e.g. MS Internet Explorer): Fig. 5.1.1: Display of Webbrowser (Microsoft I.E.) Selecting the menu button “Devices” all devices are displayed which are connected and recognized by the NEC. In the example above only one device is connected to the embedded NEC, the ES10. The NEC itself is displayed with the name NEC-E.
Fig. 5.1.2: Log-in to the NEC (server) In order to change values within the equipment recognized by the NEC, it is necessary to login to the NEC (= server). Otherwise, it will only be possible to view all the values, however, not to change them. Fig. 5.1.3: Display of login menu If login is selected, it is required to enter the user name and the appropriate password. Note: The buttons occur in different languages depending on the actual Windows language setting.
After login two additional menu buttons appear in the menu ‘Devices’: Devices update and Configure Slots. In the main window a button RescanAll allows to research the network for newly connected devices. Please note that new BK devices should be automatically detected by the server when inserted into the RS485 bus, but if there are problems then this button might help the server to find all devices. 5.
5.3 Configure Slots (optionally) The Configure Slots page provides the possibility to assign a slot number to the specific device. This functionality is useful if the NEC supervises a larger number of devices especially in the BKtel modular platforms BK Mega and 2G6. The number range is from 1 to 48. Number 49 is reserved. In case no numbers are assigned number 50 and above are automatically used.
5.4 Server Properties Selecting the menu button ‘Server’ the properties of the NEC are displayed as shown in the following figure: Fig. 5.4.1: Server Properties page Document status: Released ES10 Page 53/100 Operating Manual rev. 07, 25.09.
5.5 Event Log Selecting the Event Log menu button all events which occurred during operation of the NEC are displayed. Depending on the operating conditions the event log looks similar to what is shown in the figure below: Fig. 5.5.1: Event log page There are several marks, filled or unfilled, used to show all events. • Green exclamation marks show events which occur during normal operation. A solid green exclamation mark indicates that the event is still present.
5.6 Statistics The statistics page allows getting an insight into the trap handling and the performance of the NEC as well as the response performance of the RS484 bus. The statistics of sent, pending and discarded traps is shown in fields and allows to check, whether the SNMP trap settings are set correctly and/or the communication with the trap receiver works properly. • Traps sent: The number of trap packets, which have been sent by the NEC.
5.7 General Purpose I/O Ports of NEC Server (Option) The NEC-E provides general purpose I/O ports for remote control functions (ref. to 2.3). After selecting this item in the Server Menu, a window as shown below will appear: Fig. 5.7.1: Display of I/O ports menu Document status: Released ES10 Page 56/100 Operating Manual rev. 07, 25.09.
In the I/O mode column, the mode of both the I/O port and all 4 input-only ports (ref. to 3.4) can be set. The figure below shows the available options for the I/O port: Fig. 5.7.2: Available modes of operation for the I/O port Document status: Released ES10 Page 57/100 Operating Manual rev. 07, 25.09.
The options for the input-only ports are shown in the figure below: Fig. 5.7.
5.7.1 Examples of I/O port status information An ES10 polls also an EDFA (e.g. OVnxxxb) via the RS-485 interface. Please note, that the I/O port #0 is directly related to the transmitter unit (ES10, refer to 2.3) whereas all other I/O ports (#1 …5) are related to the NEC. • • We assume that I/O #0 is set to output on any warning (and alarm) We assume that I/O #1 is set to output on any alarm (no warnings) The following table lists the state of I/O #0 and #1 for some alarm situations.
5.8 Server Administration Fig. 5.8.1: Server administration menu The server administration menu allows modifying the IP parameters, the user names and passwords and the interval, how fast the webbrowser pages are updated. The update interval has to be chosen carefully, especially if the number of devices polled by the NEC is quite high, in order to avoid too much communication traffic. The new parameters in the different blocks are executed by clicking on the change button of the individual block.
Fig. 5.9.1: SNMP configuration menu SNMPv1 Authentication Communities Separate strings can be allocated to the get community and the set/get community. Special Settings HMS Traps Compliance ( see also SCTE-HMS-ALARMS-MIB und SCTE-HMS-COMMON-MIB ) minor compliant (1) full compliant hmsAlarmEvent Trap is sent with ENTERPRISE OID alarmsIdent (1.3.6.1.4.1.5591.1.2), instead of OID scteHmsTree (1.3.6.1.4.1.5591.
HMS Notifications enabled (1) disabled All messages of type “Notification” are sent as Trap and are inserted in the SNMP SCTE HMS tables. Since HMS does not recognize Notifications, “HMS-Severity” minor is reported All messages of type “Notification” are not sent as Trap and are not inserted in the SNMP SCTE HMS tables.
Trap Verify If traps are to be transmitted via non-permanent links like dial-up links (e.g. using ISDN or standard analog modem), it is important to verify that the link to the trap receiver is working before any SNMP traps are sent. Otherwise the traps could get lost. Several settings have been introduced to obtain a verification of the link between the trap transmitter (=NEC) and trap receiver: • • • • • Verify before trap.
5.10 Server Update It is possible to update the Server (=NEC) firmware by uploading it to the optical transmitter using the Webserver software upload menu as shown below. Fig. 5.10.1: Server update menu A server software update might be required, if new equipment has to be supervised by the NEC, connected to the RS485 (master) interface, or if the changes to the webbrowser- or SNMPEthernet interfaces have to be implemented.
5.11 Config Save A configuration menu is optionally available. The menu allows the user to save and/or to restore the configuration settings of the equipment controlled by the NEC. Pushing the ‘Config Save’ button the following figure appears. Fig. 5.11.1: Config save menu A table of the controlled devices with model name, alias name, serial number and slotnumber is displayed. Devices can be marked for configuration saving using last column of the table.
Fig. 5.11.2: Config Save page Pressing the ‘Generate Config file’ button a file with the settings of the selected devices is generated and stored in the flash memory of the NEC. To save the file locally, the button ‘Save generated Config file’ can be used. The default file name is displayed below the button. Also this link can be used to initiate the file storage. Document status: Released ES10 Page 66/100 Operating Manual rev. 07, 25.09.
5.12 Config Restore Pushing the ‘Config Restore’ button the file saved in the NEC memory is available for restoring as shown in the figure below. Fig. 5.12.1: Config Restore page In the column ‘Restore from’ the available configurations can be selected by model name, alias name, serial number and slot number. The ‘Restore’ button starts the restoration. In the last column it can be selected if the equipment should also take over the aliasname and slotnumber.
Fig. 5.12.2: Config restore menu In case configuration settings of a device should be transferred to another device e.g. in a different system, the mark has to be deselected. Only the configuration settings are then applied, the aliasname and slotnumber of the device is not altered. Using the ‘Upload Config file’ button a local file can be loaded into the NEC memory and further on be used for restoring configuration settings as described. Document status: Released ES10 Page 68/100 Operating Manual rev.
6 CONTROLLING ES10 VIA A NEC 6.1 Status The figure below shows the status page of the ES10. Fig. 6.1.1: Status page The actual status of the transmitter is shown using a mark and a description. There are several marks, filled or unfilled, used to show all events. • A green flag indicates that the transmitter is working properly. • An orange flag shows a warning. A certain parameter is out of the nominal range. The reason for that should be checked and solved as soon as possible.
6.
Warning Flags Flag Description OUTPUT_PWR_LOW_WARNING Optical output power is lower than the warning limit LASER_HIGH_WARNING The laser current of one laser is higher than the warning limit (> 130%) TEC_HIGH_WARNING The peltier current of one laser is higher than the warning limit (< 90%) RF_INPUT_LOW_WARNING RF signal is lower than the warning limit POWER_SUPPLY_WARNING One of two power supplies fails (obsolete) FAN_LEFT_WARNING The left fan (looking from device’s front side) fails (doesn’t r
6.3 Parameters The parameters page displays the most important values of the transmitter for operation. Fig. 6.3.1: Parameters page For proper operation, the black vertical bars should meet the green fields. Note: The scaling of the green and yellow fields might be different in order to obtain a good reading, especially of the green field. Document status: Released ES10 Page 72/100 Operating Manual rev. 07, 25.09.
6.4 Internal Voltages The voltages page displays all internal supply voltages like shown below. Fig. 6.4.1: Internal Voltages page For proper operation, the black vertical bars should meet the green fields. Note the thresholds for alarms are not adjustable by the user but are factory settings only. Document status: Released ES10 Page 73/100 Operating Manual rev. 07, 25.09.
6.5 Settings Menu This menu allows changing some basic adjustments of the ES10. Note: Some of the settings require certain hardware and software releases. Please refer to the manual supplied with the transmitter if some options are different or missing compared to this figure. Fig. 6.5.1: Settings menu of ES10 Document status: Released ES10 Page 74/100 Operating Manual rev. 07, 25.09.
6.5.1 Changing SBS Threshold The figure below shows, how to change the SBS suppression (threshold) between 13.0 and 23.5 dBm It is important to understand, that the SBS setting has a major impact on the transmission performance, especially for very long fiber transmission (e.g. 100 km) and high frequencies. The SBS suppression can be adjusted in 0.1 dB steps (calibrated). Please refer to 4.3.7. Fig. 6.5.
6.5.2 Changing SBS Fiber Type and SBS Fiber Length Fig. 6.5.3: Changing SBS fiber type and SBS fiber length The SBS suppression is calibrated for different types of single mode optical fibers and fiber lengths. In the menu ‘SBS Fiber Type’ a selection is possible between standard fiber and SBS enhanced fiber. In the menu ‘SBS Fiber Length’ the length of the fiber used can be selected (more details see 4.3.7). Document status: Released ES10 Page 76/100 Operating Manual rev. 07, 25.09.
6.5.3 Changing OMItotrms (AGC on mode only) The figure below shows, how to adjust the RF OMI total rms, in order to optimize the transmission performance in terms of CNR, CSO, CTB and BER. The RF OMItotrms is shown in %, enabling an easy comparison e.g. with the graphs as shown in 4.3. Fig. 6.5.4: Setting RF OMItotrms of ES10 Notes: 1. OMI nominal refers to a factory setting and cannot be changed by the user. 2. RF-OMItotrms setting is only relevant in AGC-on mode. 3.
6.5.4 Setting Gain (AGC off mode only) The figure below shows how to adjust the RF gain, in order to optimize the transmission performance in terms of CNR, CSO, CTB and BER. Fig. 6.5.5: Setting RF gain of ES10 Notes: 1. The RF gain setting is only relevant in AGC-off mode. 2. The setting range for RF gain might change slightly from device to device due to production tolerances. 3. Changing the RF gain changes the input sensitivity of the ES10 in AGC off mode; 0 dB is the nominal RF gain.
6.5.5 Changing AGC Mode The transmitter can be operated in manual- (AGC off) as well as an automatic- gain controlled (AGC on) mode. For details please refer to 4.3.2. Fig. 6.5.6: Selecting the RF AGC mode of the transmitter of ES10 Document status: Released ES10 Page 79/100 Operating Manual rev. 07, 25.09.
6.5.6 Setting Slope The ES10 enables to change the slope of its internal RF amplifier stages. The slope equalizer follows a RF cable compensating or RF cable simulating characteristics. Fig. 6.5.7: Setting the RF gain slope Document status: Released ES10 Page 80/100 Operating Manual rev. 07, 25.09.
6.5.7 Changing ITU Laser Frequency The figure below shows, how to change the ITU frequency (optical wavelength) of the transmitter in steps of 50 GHz up to +/- 100 GHz (not available for ES10L). Fig. 6.5.8: Changing the ITU frequency of the transmitter ES10XL Document status: Released ES10 Page 81/100 Operating Manual rev. 07, 25.09.
6.5.8 Changing Optical Output Power Mode There are 3 different output power modes available for the ES10 as shown in the figure below: Fig. 6.5.9: Setting the optical output power mode of ES10 1. OFF / Standby. By selecting this mode the ES10 will operate with optical output power switched off. However, the laser temperature is still kept at the operating temperature by driving the peltier cooler enabling a fast switching-on time. Additionally the RF input monitor is operating.
mode, ref. to 6.5.10) this feature will automatically switch from the master TX + EDFA to the slave TX + EDFA. In this case the I/O No. 0 ports of both ES10 have to be connected and the master/slave settings according to 6.5.10 have to be chosen. Note: The requirements for an alarm condition can be set by adjusting the alarms thresholds as explained in 6.5.11. 6.5.9 Changing Regulation Mode The figure below shows, how to change the CSO regulation mode of the transmitter. For details please refer to 4.3.
6.5.10 Changing Redundancy Mode Fig. 6.5.11: Setting the redundancy port mode The redundancy mode menu is used to configure redundancy setup between two ES10 (device redundancy). The I/O port #0 is dedicated for this purpose and the menu Redundancy mode directly manipulates this port.
The table below shows the mode of operation and the impact on I/O port No. 0 Mode of operation Description I/O port #0 Active low In case of alarm or warning, which arises Output, active low in case any of the alarm thresholds has been reached or due to an internal error the I/O port becomes low. Active high In case of alarm or warning, which arises Output, active high (Default = factory in case any of the alarm thresholds has been reached or due to an internal error setting) the I/O port becomes high.
Application: Automatic redundancy switching of twoES10 located side by side: • Connect a cable between the master and the slave ES10 connecting both I/O #0 ports and GND. • Set the master ES10 in one of the two Nominal master modes • Set the master ES10 I/O port mask to the desired mode.
6.5.11 Setting Redundancy Mask The redundancy mask determines whether only alarms but no warnings (default = factory setting) or alarms and warnings trigger the I/O port #0 in output mode. The menu is shown in the figure below. Fig. 6.5.12: Setting the alarm/warning mask for the output port With this feature all warnings / alarms of the ES10 can be either enabled or disabled by the user in relation to the output #0 port. If the output mask is applied a notify message will be shown on the status page.
6.5.12 Selecting a Redundancy Mask When Special alarm/warning mask is chosen an additional webpage appears which allows a specific choice of alarms and warnings triggering the redundancy switching. Fig. 6.5.13: Selecting a special alarm/warning mask Document status: Released ES10 Page 88/100 Operating Manual rev. 07, 25.09.
Fig. 6.5.14: Redundancy Mask menu Document status: Released ES10 Page 89/100 Operating Manual rev. 07, 25.09.
6.5.13 Setting CATV Signal Channel Spacing The Channel controlled AGC mode provides a unique technology to minimize CSO distortions without requesting pilot tones. By setting the channel spacing to the correct value (ref. to 4.3.4) the CSO control loop will operate with utmost performance. The figure below shows how to set the channel spacing. Fig. 6.5.
6.6 Limits Menus The two limits menus of the ES10 determine, what deviations from the nominal values of some of the operating conditions of the transmitter lead to either warning or alarm messages. In order to avoid inadequate changes, some settings are factory settings only. Fig. 6.6.1: Limits menu of ES10 Document status: Released ES10 Page 91/100 Operating Manual rev. 07, 25.09.
After successful log-in, the warning and alarm thresholds for the RFrms input level, OMItotrms, RF gain and optical output power can be set by the customer. It is recommended to be very careful in setting the alarm thresholds in order to avoid meaningless alarms, e.g. due to temperature changes. For the output power warning a range of at least +/- 1 dB is recommended.
6.7 Setting an Event Mask for Webserver and SNMP Interface The ES10 allows setting an event mask, which determines whether a warning or alarm or a notification is shown or suppressed in the Webserver status screen as well as transmitted via the SNMP interface. The menu is shown in the following figure. Fig. 6.7.1: Setting the event mask for the Webserver and SNMP interface Document status: Released ES10 Page 93/100 Operating Manual rev. 07, 25.09.
With this feature all warnings / alarms of the ES10 can be either enabled or disabled by the user in relation to the LEDs on the front panel, the Webserver status screen and SNMP interface. If the alarm/warning mask is applied a notify message will be shown on the status page (ref. to 6.1). 6.8 Properties Menu The properties page of the ES10 provides an overview of the transmitter properties such as hardware model, hardware release, serial number and the software releases.
Fig. 6.8.2: Miscellaneous menu Document status: Released ES10 Page 95/100 Operating Manual rev. 07, 25.09.
7 CONTROLLING OTHER DEVICES WITH A NEC One of the advanced features of the NEC is, that also additional BKtel equipment can be managed or monitored through this circuitry either • via the push-buttons / LCD field of the ES10 • the Webserver (HTTP) • SNMP interface. In order to use this function, additional BKtel equipment has to be connected to the RS485 (master) interface of the NEC by using a standard RJ-45 patch cable.
8 MAINTENANCE • Clean connector ends with a lint free tissue and alcohol before every mating. • Loose screws fixing the optical connector plate • Remove the connector from the connector bulkhead. • Clean the connector ends with a lint-free tissue and alcohol. • Reinstall the connector into the bulkhead ensuring that the cables/fibers are not stressed. • Caution: Do not extend the connector by more than 1 cm from the body of the ES10.
10 RELEASES 10.1 ES10 Hardware Releases 10.1.1 Hardware Releases for ES10La/ES10XLa Rel. 3.0 4.0 5.0 Date June 2008 Feb 2010 June 2011 Description First delivered release of optical transmitter New SBS Board layout - EMC optimized - F-connector type changed - Redesign of LED label 6.0 May 2013 supports new Flash Memory types - advanced monitoring of the RF-Signal Path - SBS Modul: Power consumption reduced, additional monitoring functions integrated 10.1.2 Hardware Releases for ES10Lb/ES10XLb Rel. 3.
10.2.2 Application Software Releases for ES10Lb/ES10XLb Rel. 3.0 3.1 Date June 2008 July 2008 3.2 3.3 3.4 Nov 2008 Nov 2008 Nov 2008 3.5 3.6 May 2009 Aug 2009 3.7 3.8 3.12 3.
The manual removal of “unconnected” devices via the “Remove” button is improved. 3.0.3 Nov 2009 - Bugfix DS55 SAT transmitter – the SAT-OMI and SAT-RF gain alarm limits could not be modified. - Bugfix for bootloader software update of the old Net+50 processor in the Application Software Release 3.0.x. Using 3.0.x. an error message occurred after the bootloader update. Nevertheless the new bootloader was correctly installed.
