MD1000A Modem 3600 Modem User’s Guide
Trademarks Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
Regulatory Information FCC Requirements This equipment complies with FCC rules Part 68. Located on the equipment is the FCC Registration Number and Ringer Equivalence Number (REN).You must provide this information to the telephone company if requested. The Registration Number and REN is inscribed on the printed circuit board on insert cards, or on a label attached to either the chassis bottom or metal end-plate on standalone or rack models.
Regulatory Information This equipment may not be used on coin service provided by the telephone company. Connection to party lines is subject to state tariffs. An FCC compliant telephone cord and modular plug are provided with this equipment, which is designed to connect to the telephone network or premises wiring using a compatible modular jack that is Part 68 compliant. See installation instructions in Chapter 2, Installation for details.
Regulatory Information Shielded Cables This product has been tested and complies with FCC limits for a Class B computing device. Testing was done with shielded computer cables. Using unshielded cables could cause your system to emit excess radio frequency, increasing the chance of interference. To comply with FCC regulations it is necessary to use shielded computer cables with your installation.
Regulatory Information Special Requirements For Canada Certain requirements exist for data communication products manufactured for use in Canada. Principle among these requirements is the application of the IC label as described below. However, certain data communication products do not require the IC label nor adherence to IC requirements. If this is the case the IC label will not be affixed to the units. Industry Canada (IC) Requirements IC labels are affixed to each unit sold in Canada.
Regulatory Information Caution: Users should not attempt to make installation connections themselves, but should contact the appropriate electric inspection authority or electrician. Ringer Equivalence Number The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface.
Regulatory Information Normas Normas Oficiales Mexicanas (NOM) Electrical Safety Statement INSTRUCCIONES DE SEGURIDAD 1) Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2) Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3) Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4) Todas las instrucciones de operación y uso deben ser seguidas.
Regulatory Information 13) Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y recept culos donde salen del aparato. 14) El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante. 15) En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.
Contents Regulatory Information Chapter 1.Introduction Shelf-Mount Units ..................................................................... Features ...................................................................................... Data Mode ............................................................................. Fax Mode .............................................................................. Software .....................................................................................
Contents (continued) Chapter 4. Front Panel Operation LED Descriptions ...................................................................... LCD Menus ............................................................................... LCD Menu Operation ................................................................ Front Panel Security .................................................................. 4-1 4-2 4-2 4-11 Chapter 5. AT Commands Command Categories ...............................................
Contents (continued) Chapter 5. AT Commands Switching from Voice to Data ............................................... Answering A Call ...................................................................... Manual Answer ..................................................................... AT Command Answer A ...................................................... Autoanswer S0 .................................................................... Caller ID *ID ...............................................
Contents (continued) Incoming Call *IC .............................................................. Line Current Disconnect *LC ............................................. Disable AT Command Set *NT .......................................... Dial Line Transmit Level *TDn ......................................... Private Line Operation ............................................................... 4-Wire Operation .................................................................. 2-Wire Operation ......
Contents (continued) Chapter 6. Protocols CCITT V.42 bis Error Control Protocol ..................................... Reliable Mode ............................................................................ Auto-Reliable Mode .................................................................. Constant Speed Interface ........................................................... Data Compression ...................................................................... Normal Mode ................................
Contents (continued) Chapter 8. Security Autocallback Security ................................................................ 8-1 Low Security Operation ............................................................. 8-2 Operating without Low Security ........................................... 8-2 Operating with Low Security ................................................ 8-2 Remote Operation ................................................................. 8-2 Local Operation ............................
Contents (continued) Chapter 8. Security Verify User Information $In, $IBn ....................................... Request Superuser Privilege $S=pw ................................... Local Logon Command $n=pw ............................................ Local Logoff Command $$ ................................................. Remote Logon Procedure $n=pw ....................................... 8-11 8-11 8-11 8-11 8-11 Chapter 9. Fax Operation Fax Operation ...............................................
Contents (continued) Chapter 10. Status Registers (Continued) Ring Count S1 ..................................................................... Escape Character S2 ........................................................... End-of-Line Character S3 ................................................... Line-Feed Character S4 ...................................................... Backspace Character S5 ...................................................... Pause Before Dialing S6 .............................
Contents (continued) Chapter 10. Status Registers (Continued) XOFF Character to DTE S50 .............................................. Dial Line Transmit Level S51 ............................................. Leased Line Transmit Level S52 ........................................ Automatic Rate Adaption Threshold S53 ........................... Flow Control S54 ................................................................ S55 ..............................................................................
Contents (continued) Chapter 11. V.25 bis Autodialer Autodialer Command Strings and Parameters ........................... Software Guidelines ................................................................... Invalid Responses .................................................................. Dial Parameters .......................................................................... V.25 bis Commands and Responses .......................................... Dial Command CRN nn...n ..........................
Contents (continued) Appendix A. Specifications (Continued) Operation .............................................................................. Carrier Detect Level .............................................................. Telco Connection .................................................................. Testing ................................................................................... Line Equalization .................................................................. RTS/CTS Delay ....
Contents (continued) Appendix E. Command Index and Defaults Factory Option Set # 6 (Asynchronous 4-wire Leased Line without V.42 bis Protocol)(AT&F6) ................................ Factory Option Set # 7 (Synchronous 2-wire Leased Line Normal Originate) (AT&F7) ............................................. Factory Option Set # 8 (Synchronous 2-wire Leased Line Forced Answer) (AT&F8) ................................................ Factory Option Set #9 (Synchronous V.
Chapter 1 Introduction The Modem 3600 provides synchronous, asynchronous, and fax capabilities for data communications or facsimile links between a local computer and a remote computer, fax, or data terminal equipment (DTE) located anywhere a standard or cellular telephone can reach. Data can be transmitted over standard dial-up lines, private leased telephone lines, or wireless communication.
Introduction Features The Modem 3600 is a flexible telecommunications tool that offers the following standard features. Data Mode • Full-duplex operation on two-wire public connections or two-wire or four-wire private telephone connections with two-wire public automatic or manual backup • 300, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200, 33600 bps DCE data rates • Compatible with these standards: CCITT V.34 CCITT V.33 CCITT V.32 bis CCITT V.32 CCITT V.
Introduction • Caller ID • Distinctive ring • Multiple levels of security with auto callback and password protection and up to 50 users • Automatic speed matching to originating modem • Remote configuration using command mode or LCD • Built-in standard diagnostics for testing phone line quality and modems at each end • Flash upgrades Fax Mode • • • • Fax speeds to 14.4 kbps HDLC framing to allow T.30 Error Correction Mode Standard Class 1 interface conforms to EIA-578 Group 3 compatibility: CCITT V.
Introduction Description Functional The Modem 3600 processes serial asynchronous data from a DTE at all standard rates from 300 bps to 230.4 kbps*, and serial synchronous data at rates from 300 to 33.6 kbps. Transmission can be over either dial-up lines or either two- or four-wire leased lines. The maximum line speed is 33.6 kbps. Built-in test features can determine system performance and isolate faults in the data link.
Introduction The Modem 3600 rear panel has an EIA-232 DTE connector, an 8-pin TELSET/LEASED LINE jack, an 8-pin DIAL jack, the power switch, fuse, and cord (Figure 1-2). TELSET LEASED LINE DIAL Figure 1-2.
Introduction Modem 3600 Card The shelf-mount Modem 3600 unit (Figur e1-3) has edge connectors that insert into the shelf backplane. The shelf backplane performs the same functions as the standalone rear panel. Refer to the “Shelf-Mount V.3600 MD1000C Installation” section on pa ge2-10.
Introduction Figure 1-3.
Introduction 1-8 Modem 3600
Chapter 2 Installation This chapter provides information on mechanical and electrical installation of the modem. Mounting Accessories We have included both self-adhesive feet and an adhesive-backed hook and loop fastener. The feet are for use when the module will be resting on a surface; the hook and loop is useful when mounting the modem to a PC or monitor housing or other flat surface. To install the feet, peel them from the paper backing and place one foot at each corner of the bottom of the module.
Installation Electrical Installation The rear panel (Figure 2-1) includes DTE cable and telephone line connectors. TELSET LEASED LINE DIAL Figure 2-1. Rear Panel Connections (115 Vac Model) AC Power Connection Power is supplied through a 6-foot line cord with a grounded 3-wire plug. DC Power Connection Caution To protect the DC-to-DC converter from damage, ensure the positive and negative leads are properly connected.
Installation Figure 2-2.
Installation Table 2-1. Pin Signal Description s Pin 1 EIA- CCITT 232D V.24 Signal 101 Shield Description No connection 2 BA 103 Transmitted Data Serial digital data (to be modulated) from a data terminal or other digital data source: Synchronous data must be accompanied by the modem transmit clock (pin 15) or by an external data rate clock (pin 24). Data transitions should occur on positive-going clock transitions; asynchronous data does not require a transmit clock.
Installation Table 2-1. Pin Signal Descriptions (Continued) Pin EIA- CCITT 232D V.24 Signal Description 7 AB 102 Signal Ground Signal or common signal and dc power ground. ** 8 CF 109 Receive A positive level from the modem d Line indicating the presence of a Signal received signal (carrier detect).
Installation Table 2-1. Pin Signal Descriptions (Continued) Pin EIA- CCITT 232D V.24 Signal Description 20 CD 108.2 Data Terminal Ready This circuit is positive when the DTE is ready to originate or answer a call in dial-up operation. DTR must always be active (high) in 2-wire private line operation. Cycling DTR causes retraining.* 21 -- 140 Remote Digital Loopback A positive level causes a digital loopback test mode at the remote modem.
Installation Dial Mode: PSTN Connection (DIAL jack) The public switched telephone network (PSTN) is a two-wire dial network. Modems are registered with the Federal Communications Commission (FCC) for direct connection to the PSTN. The label on the chassis bottom gives the FCC registration number and other information required for network operation. Direct connection to the PSTN is shown in Figure 2-3.
Installation Leased Line Connection (TELSET/LEASED LINE Jack) Private or leased lines use four-wire or two-wire lines. In this mode, the user configures the unit for four-wire or two-wire operation, depending on the private line service used. The telephone company will install the leased line and wall jack at your site. The line connects to the modem at the 8-position TELSET/ LEASED LINE jack. Figure 2-4 shows a typical modem hookup for operation over private leased lines with dial backup.
Installation Dial (May be used for Dial Backup) Telset Leased Line Jack TELSET LEASED LINE DIAL DTE EIA-232 25-Pin Connector to DTE Leased Line Cable Leased Line Jack RJ11C Use 8-pin Modular (at modem end) to 6-pin Modular (at RJ11 wall jack end) connector. (Optional connection for dial backup use.) Notes: 1. Set the transmit output level to 0dBm. 2.
Installation Shelf-Mount MD1000C Installation Go to Appendix C, Hardware Options to check the board options before installation. Shelf-mount Modem 3600 cards should be installed or replaced by personnel familiar with shelf-mount installation. The unit has an edge connector that inserts into a receptacle located on the backplane and power bus. Note Figure 2-5 represents a typical dialup connection using one of the most common rack shelves. Connect cables as appropriate for any compatible shelf.
Chapter 3 Getting Started Option Selection There are six ways to change or select options: • LCD - Using the front panel LCD and pushbuttons is simple, straightforward, and requires the least amount of technical background. Chapter 4 explains LCD operation. • AT Commands - The AT command set can be used to select modem options. Chapter 5 describes AT commands.
Getting Started Placing a Call There are three methods for placing a call: Dialing with a Standard Telephone 1) Lift the telephone receiver. Wait for the dial tone. 2) Dial the number of the remote site. 3) When the answer back tone is heard, immediately press the TALK/DATA button and hang up the telephone. The modems go through a connection sequence and establish a data link. If a data link is not established, return to Step 1. 4) After the link is established, hang up the telephone.
Getting Started Answering a Call There are three ways to answer a call: Autoanswering Normally the modem is configured to autoanswer on the first ring. If a telephone is plugged into the TELSET/LEASED LINE jack, it will also ring. Answering Manually When detecting a ring, the modem LCD displays ringing status. Press TALK/DATA to answer the call and place the modem in the data mode. Answering from Terminal with AT Command Set The modem displays the ring response. To answer a call, type ATA.
Getting Started Reasons for Call Termination The conditions described in Table 3-1 cause call termination. Table 3-1. Reasons for Call Terminatio n Condition Abort Disconnect (No answer, busy signal, no modem, etc.) Description ATH Disconnect command. Loss of Carrier Disconnect Select 100 ms to 25.5 sec (S-register 10). Receive Long Space Disconnect Disabled or select 2 sec. DTR Disconnect Disabled or select 10 ms to 2.55 sec (S-register 25). Default 30 sec; select 1 to 255 sec (S-register 7).
Getting Started Table 3-1. Reasons for Call Termination (Continued) Condition Description Minimum DCE Speed A connection occurred at a rate less than minimum. Security Password Failure Maximum password entry attempts exceeded. Security Callback Security callback is enabled and a new remote connection is established. The modem disconnects and places a call to the programmed number.
Chapter 4 Front Panel Operation The liquid-crystal display (LCD) front panel provides easy real-time access to modem configuration and status. You can use the LCD at any time to modify modem options or to get information about modem operation and status. All of the major modem options can be controlled through the LCD interface without an external terminal or phone line connection. Operation of the LCD can be secured using a password protection feature.
Front Panel Operation LCD Menus The Modem 3600 has seven main LCD menus that support modem operations. Table 4-1 lists them, in the following sequence: • MODEM STATUS • DIAL STORED NUMBER • DISPLAY STATUS • SELECT TEST • MODIFY CONFIGURATION • CHANGE PHONE NUMBERS • FRONT PANEL FEATURES LCD Menu Operation The LCD menu is shown in Tabl e4-1, as follows: • The first column lists the seven main menu categories. • The second column is the submenus, listing functions for each category in the main menu.
Front Panel Operation Table 4-1. LCD Menu Option Selectio n SReg Main Menu LCD Messages 1 V.34 33600 IDLE Shows the current modulation, bit rate, and modem status. (Press NO to advance to MAIN 2) S91 S67 Submenu Submenu Item Item Option AT Com. SReg DIAL #1-9 YES, NO DSn (n=1-9) --- DTE SIGNALS QM ON/OFF DSR ON/OFF OH ON/OFF RI ON/OFF DISPLAY STATUS --- --- PROTOCOL* NONE MNP 2, 3, 4, 5 LAPM DISPLAY STATUS --- --- COMPRESSOR* NONE MNP 5, V.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Main Menu Submenu Submenu Item Item Option AT Com. SReg 4, (Online test continued) REMOTE DIGITAL LOOP † INITIATE, EXIT &T6 S16 REMOTE DIGI TAL LOOP WITH TP † INITIATE, EXIT &T7 S16 TEST PATTERN† INITIATE, EXIT %T --- CHANGE LEASED/ DIAL LINE? 2 WIRE/ 4 WIRE &L1, &L S27 AUTOMODE V.21 BELL 103 B212A V.22 bis V.27 ter * V.29 * V.33 * V.32bis V.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Main Menu 5 c o n t. MODIFY CONFIGURATION? (continued) Submenu CHANGE MODEM OPTIONS? (continued) Submenu Item Item Option AT Com. SReg CHANGE MIN DCE RATE? 33600 31200 28800 26400 24000 21600 19200 16800 600 14400 12000 7200 9600 9600U ** 4800 2400 1200 300 DTE SPEED %L18 %L17 %L16 %L15 %L14 %L13 %L12 %L11 %L10 %L9 %L8 %L7 %L6 %L5 %L4 %L3 %L2 %L1 %L S69 CHANGE V.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Main Menu Submenu Submenu Item Item Option AT Com.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Item Option AT Com. SReg DTE SPEED DTE=DCE CONSTANT DTE \J1 \J S70 DTE FLOW CONTROL DISABLE XON/XOFF CTS RTS/CTS \Q \Q1 \Q2 \Q3 S54 DCE FLOW CONTROL DISABLE XON/XOFF CTS \Q4 \Q5 \Q6, \Q7 S54 XON/XOFF PASS THROUGH ENABLE DISABLE \X1 \X S54 INACTIVITY TIMER OFF, 15, 30, 45, 60, 75, 90 MIN \TLn S58 BREAK OPTION 0, 1, 2, 3, 4, 5 \K, \K1, \K2, \K3, \K4, \K5 S59 V.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Item Option AT Com. SReg ASYNC DTR, MANUAL, V.25 BISYNC, V.25 SDLC V.25 bis ASYNC &M1, &M2 &M3 &M4 S27 S30 AT COMMAND SET ENABLE DISABLE *NT1 *NT S29 CHARACTER TYPE (V.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Item Option AT Com. SReg 0 to 150 ms (10 ms) --- S26 ENABLE DISABLE *FB1 *FB S53 OPTIONS RES/ RETND AT DISC RESTORED RETAINED *RO1 *RO S29 BILATERAL DIGITAL LOOP ENABLE DISABLE *DG1 *DG S34 DTE LOCAL TEST ENABLE DISABLE *LA1 *LA S34 DTE REMOTE TEST ENABLE DISABLE *RD1, *RD S34 REMOTE COMMANDED ENABLE DISABLE &T4 &T5 S23 TEST TIMEOUT OFF, 60, 120, 180.
Front Panel Operation Table 4-1. LCD Menu Option Selection (Continued) Item Option AT Com. SReg ON UNTIL CARR DETECT ALWAYS ON OFF WHILE DIALING ALWAYS OFF M1 S22 LOAD FACTORY OPTION NO, 1-9 &Fn (n=1-9) --- LOAD USER OPTION SET 1 2 Z0 Z1 --- STORE PRESENT OPTIONS 1 2 &W &W1 --- USER OPTION AT RESET 1 2 &Y &Y1 --- Main Menu Submenu Submenu Item 5 CHANGE SPEAKER OPERATION? (continued) SPEAKER CONTROL c o n t.
Front Panel Operation Front Panel Security The Front Panel Security feature provides password protection for front panel menu access. The modem is shipped from the factory with this feature disabled. The Front Panel Security password is a 4-digit string that can be set to any combination of digits from “0000” to “9999”. Selecting a password of “0000” disables Front Panel Security; any other password enables it. IMPORTANT: Without your password, you cannot access front panel configuration.
Front Panel Operation During password entry, the front panel buttons operate as follows: • Pressing NO makes the character at the cursor change to the next valid password character. • Pressing YES while the cursor is on any of the first three password characters makes the cursor advance to the next password character. When the cursor is on the last password character, pressing YES makes the modem accept the displayed password.
Chapter 5 AT Commands This chapter describes commands used to select options and operate the modem. Some options depend on, or are restricted by, the mode of operation. Appendix E provides a quick reference list.
AT Commands Offline Command Mode In offline command mode (generally referred to as command mode), the modem communicates with the computer or terminal. Commands can be entered separately or in strings. There is no data communication link established in this mode. Online Command Mode This mode is entered from the data mode after the escape command has been entered. The escape command is performed by entering the escape character (+ is the default) three times.
AT Commands Creating a Command Statement AT To create a command statement use the following steps: 1) Type AT. This is the Attention Code telling the unit a command statement follows. 2) Type the command. 3) Press the Enter key to send the command statement to the modem. An example of a command statement using the dial command (D) follows. ATD554-1212 This statement can be read as “Attention: Dial 554-1212.
AT Commands Monitor Display As commands are typed they appear on the monitor so the operator can verify the input. This is called local character echo. The echo may be turned on or off using AT commands. Refer to the “Local Character Echo E” section on page 5-22 for details. Command Statement Buffer The modem temporarily stores up to 80 characters in the command buffer. If this limit is exceeded, the modem does not accept the command and sends an ERROR message.
AT Commands Numbered Commands Commands that start with the same letter are distinguished by a number following the letter. For example, the M0 command selects speaker always off, M1 speaker on until carrier detected, and M2 selects speaker always on. Note The zero (0) may be omitted; the commands M and M0 are identical. This manual uses the nonzero form. The modem treats both the same, but zeros count against the buffer total. Group Commands A group of commands can be typed in a single command statement.
AT Commands Digit / Word Selection V The V command tells the modem which type of response message to show on the monitor. Some software requires digit response messages but words are easier to remember. Command Operation V Enables digit response messages V1 Enables word response messages Response Displays Q The Q command enables or disables response messages. The modem still responds to commands when the response display is inhibited.
AT Commands Call Progress / Connect Speed Messages X The X command selects response code/message displays and dialing options such as call progress monitoring, busy signal or dial tone detection and blind dialing.
AT Commands The X3 command followed by a dial command makes the modem go off hook, wait the amount of time set in register S6 and dial the number. If a busy signal is detected, the modem sends a BUSY message and hangs up. If the call is completed, the appropriate CONNECT message similar to X1 is displayed. The modem does not detect a no dial tone situation. The X4 command followed by a dial command makes the modem go off hook and wait for a dial tone before dialing.
AT Commands Response Number Codes / Messages Response number codes, messages, and their meanings are listed in . The connect rates are serial port rates (DTE), not DCE rates.
AT Commands Code Message Meaning 31 CONNECT 31200 DTE rate 31200 bps 32 CONNECT 32000 DTE rate 32000 bps 33 CONNECT 33600 DTE rate 33600 bps 34 CONNECT 38400 DTE rate 38400 bps 35 CONNECT 57600 DTE rate 57600 bps 36 CONNECT 115200 DTE rate 115200 bps 37 CONNECT 230400 DTE rate 230400 bps 38 CONNECT 300/V42bis V.42 bis 300 bps connection 39 CONNECT 600/V42bis V.42 bis 600 bps connection 40 CONNECT 1200/V42bis V.42 bis 1200 bps connection 41 CONNECT 2400/V42bis V.
AT Commands Code Message Meaning 54 CONNECT 32000/ V42bis V.42 bis 32000 bps connection 55 CONNECT 33600/ V42bis V.42 bis 33600 bps connection 56 CONNECT 38400/ V42bis V.42 bis 38400 bps connection 57 CONNECT 57600/ V42bis V.42 bis 57600 bps connection 58 CONNECT 115200/ V42bis V.42 bis 115200 bps connection 59 CONNECT 230400/ V42bis V.42 bis 230400 bps connection 60 CONNECT 300/V42 V.42 300 bps connection 61 CONNECT 600/V42 V.42 600 bps connection 62 CONNECT 1200/V42 V.
AT Commands Code Message Meaning 80 CONNECT 115200/V42 V.42 115200 bps connection 81 CONNECT 230400/V42 V.
AT Commands Code Message Meaning 110 CONNECT 9600/MNP MNP 9600 bps connection 111 CONNECT 12000/MNP MNP 12000 bps connection 112 CONNECT 14400/MNP MNP 14400 bps connection 113 CONNECT 16800/MNP MNP 16800 bps connection 114 CONNECT 19200/MNP MNP 19200 bps connection 115 CONNECT 21600/MNP MNP 21600 bps connection 116 CONNECT 24000/MNP MNP 24000 bps connection 117 CONNECT 26400/MNP MNP 26400 bps connection 118 CONNECT 28800/MNP MNP 28800 bps connection 119 CONNECT 31200/MNP MNP
AT Commands Dial modifiers are as follows. Command Operation T Tone dialing P Pulse dialing , Insert a long pause (2 sec or value in S8) W Wait for 2nd dial tone ! Flash (1/2 sec) R Switch to answer mode after dialing ; Return to command mode after dialing @ Wait for silence S Dial stored command line or number Tone Dialing T To tone dial a number sequence, insert a T in the dial sequence. AT D T 323-1111 In this example, the modem tone dials the telephone number.
AT Commands Hook Flash ! To flash the switchboard, insert an exclamation mark in the dialing sequence. AT D T 9W 323-8000 ,!, #7 377 This inserts a 0.5 second on hook condition, usually for transferring a call or similar use. In this example, the modem tone dials a 9, waits for the second dial tone, dials the phone number, pauses, flashes to start the transfer, pauses a second time, then uses #7 to transfer the call to extension 377.
AT Commands For example, you might enter a dollar amount for a banking transaction by entering AT D 1400 ; This sends the sequence 1400 and then returns to the command mode for further entries, according to the requirements of the banking service. Dialing a Stored Telephone Number Sn To dial one of the previously stored numbers, enter Sn where n represents a stored telephone number location between 1 and 9. AT D S9 In this example, the number stored in location 9 is dialed.
AT Commands Manual Answer When the phone rings, answer by pressing the TALK/DATA button. AT Command Answer A The modem can be made to answer a call by entering ATA when the phone rings. Autoanswer S0 Autoanswer is controlled by register S0. S0 determines which ring the modem answers on. S0 can be loaded with a value between 1 and 255 for autoanswer. Entering ATS0=0 disables autoanswer. Decide which ring the modem is to answer on and set S0 to that decimal value.
AT Commands When Caller ID is enabled, one of the messages in Table 5-2 appears on the computer screen after the first RING message: Table 5-2. Caller ID Message s The modem sends this message...
AT Commands When distinctive ring is enabled, one of the messages in Table 5-3 appears on the DTE instead of the regular RING message: Table 5-3. Distinctive Ring Message s The modem sends this message... If the Ring Was a: RING A Single ring (1 ring burst) RING B Double ring (2 ring bursts) RING C Triple ring (3 ring bursts) Terminal Interface Commands The EIA-232 interface connects the modem and DTE.
AT Commands Data Set Ready &S These commands control the DSR signal generated by the modem to indicate that the modem is ready for operation. DSR must be on for some terminals and devices to communicate with the modem. Command Operation &S DSR always on &S1 DSR on when off hook in data mode &S2 DSR off for 5 seconds after disconnect then returns to on &S3 DSR follows off hook (OH) signal Data Terminal Ready &D In data mode DTR may be used for modem control.
AT Commands Serial Port Ring Indicator (Pin 22) \R The \R commands determine how the ring indicate signal operates on pin 22 of the EIA-232 DTE connector.
AT Commands DTE Controlled Fallback Rate (Pin 23) *FB Pin 23 of the EIA-232 DTE connector provides signal input to the modem for DTE fallback. If the modem is not using DTE fallback, set this option to ignore pin 23. To cause the modem to act on high/low levels of pin 23, enable this option. Negative level forces a higher rate for primary data rate; positive forces a lower rate providing a fallback rate.
AT Commands If the screen shows no characters, enter the E1 command to turn modem echo on or enable local echo on the terminal. Command E Operation Echo off E1 Echo on Online Character Echo F In some lower speed modems the F command determines if characters are echoed to the DTE from the modem when online. This function is generally controlled by the communications software. The modem does not support online character echo. Hanging Up H, H1 To end a call, enter the H command.
AT Commands EPROM Check I PC software packages may issue the I command to verify the modem will support all commands needed by the software package. The modem returns ASCII characters representing the model and revision level. To request the checksum to be calculated on the EPROM, enter the I1 command. The modem returns four ASCII characters representing the cyclic redundancy check (CRC) in hexadecimal form. Enter the I3 command to request the product version.
AT Commands Return Online O Use the O command when you are operating in the online command mode and need to return to data mode. It returns the modem to the same mode (originate or answer) that it was in before escaping to the (online) command mode. Enter the O1 command to cause a retrain to occur before going back to data mode. Long Space Disconnect Y One method of disconnecting two modems is called long space disconnect.
AT Commands Use register S30 to select NRZ/NRZI for data format if using SDLC. Command Operation &M Async data/dialer mode (V.25 bis disabled) &M1 Sync data mode / async dialer &M2 Sync data mode / DTR dials if active &M3 Sync data mode / manual dial &M4 Sync data mode (ASCII) with V.25 bis BISYNC dialer &M5 Sync data mode (NRZ) with V.25 bis SDLC dialer &M6 Sync data mode with V.25 bis async dialer &M7 Async data mode with V.25 bis async dialer &M8 Sync data mode (EBCDIC) with V.
AT Commands Synchronous Transmit Clock Source &X The &X commands select internal, external, or receive clock as the transmit clock source. Command Operation &X Internal clock &X1 External clock &X2 Receive clock V.34 Rate Selection Thresholds *TH The *TH commands sets theV.34 rate selection thresholds. TheV.34 modulation dynamically selects the optimum bit rate to run, based on line quality. Command *TH Operation Low V.34 threshold (10 - 6 BER) *TH1 Medium V.
AT Commands Command Operation *MM5 V.22 bis *MM6 V.27 bis 4-wire leased only *MM7 Reserved *MM8 V.29 4-wire leased only *MM9 Reserved *MM10 V.33 4-wire leased only *MM11 V.32 bis *MM12 V.34 Maximum DCE Speed %B The %B commands set the originating DCE speed to follow the DTE speed. When originating a call the two modems will not connect at a speed faster than the lower DCE speed setting of the two modems.
AT Commands Command Operation %B16 28800 bps %B17 31200 bps %B18 33600 bps *Valid for V.32 bis modulation only Note Use the %B command after the *MM command when specific modulations are required. Minimum DCE Speed %L If the modem connects at a rate lower than the minimum DCE speed, it disconnects the link automatically.
AT Commands Auto Retrain %E This option allows the modem to automatically retrain in response to poor received signal quality without reconnecting. The modem always responds to a retrain request from the remote modem. Command Operation %E Disable auto retrain %E1 Enable auto retrain Automatic Rate Adaption %R Automatic rate adaption (ARA) allows the modem to automatically decrease the DCE rate when the allowable bit error rate is exceeded.
AT Commands Command Operation %R Disable automatic rate adaption %R1 Enable automatic rate adaption using low BER: 1 in 105 %R2 Enable automatic rate adaption using medium BER: 1 in 104 %R3 Enable automatic rate adaption using high BER: 1 in 103 Manual Rate Adaption *RR The *RR command forces the modem to re-adapt the DCE rate of the remote modem.
AT Commands Online Quick Reference $H The $H command displays anAT command set quick reference. The Enter key terminates the page displays and any other key scrolls through the pages. Command Operation $H Displays online quick reference $H= Search online quick reference for string. Product Serial Number $V The $V command displays the product serial number. Talk / Data *DA The *DA commands select talk or data mode.
AT Commands Disable AT Command Set *NT The *NT command disables theAT command set. The *NT1 command allows the user at a remote modem to enable AT command operation of another modem via remote configuration.
AT Commands Note For operation with modems that use V.33 as the modulation type, the Modem 3600 must be set up to V.33. 2-Wire Operation In 2-wire operation, the modem is a full-duplex modem able to operate over 2-wire leased or PSTN lines. 2-Wire Leased Line Operation The 2-wire leased line is connected to the TELSET/LEASED LINE jack; the DIAL jack connects to a 2-wire dial-up line for dial backup. The leased line connects the local and remote modems directly and dialing is not necessary.
AT Commands Dial Backup Dial backup allows the modem to switch to a dial backup mode if the data connection on the leased line is unacceptable for communications. This can be accomplished in two ways: • Automatic - backup due to extended loss of carrier or 4 unsuccessful retrains in 3 minutes • Manual - user determined using front panel controls orAT commands In leased line operation, if both units have autodial backup enabled, one must be configured for forced answer.
AT Commands Dial / Leased Line &L &L selects line operation as required: Command &L Operation Dial (switched) &L1 Leased (private) 2-wire &L2 Leased (private) 4-wire Dial Backup *DB Command Operation *DB Manual dial backup operation *DB1 Automatic dial backup operation Return to Leased Line from Dial Backup *LB During dial backup operation, *LB makes the modem return to leased line operation.
AT Commands Configuration Commands These commands recall various profiles for insertion into the active profile, store the active profile and telephone numbers in nonvolatile memory, and designate the powerup profile. Remote configuration is discussed on page 5-41. Configuration Profiles Modem operations are controlled by option settings selected from factory defaults stored in ROM, active settings stored in RAM, and custom settings stored in nonvolatile memory.
AT Commands Storing a Configuration &W The &W commands store the current configuration options in one of two nonvolatile memory locations (Figure 5-1). The stored configurations are retained in memory even when power is off, or until &W is issued with a new configuration. Command Operation &W Store options to user option set 1 &W1 Store options to user option set 2 Figure 5-1.
AT Commands Load Factory Options &Fn The &Fn command loads one of the existing configuration sets, providing a complete configuration for a compatible system/network environment. Refer to the Appendix H for a complete list of the options in each set. Command Operation &F, &F1 Load factory option set 1 (async dial-up withV.42 bis) &F2 Load factory option set 2 (async dial-up withoutV.42 bis) &F3 Load factory option set 3 (sync dial-up without V.
AT Commands View Configuration Profiles/Received Signal Options &V This command lets the user view the current configuration profile in the form of S-register values. &V1 displays the received signal options. Command &V Operation Displays configuration profiles &V1 Displays received signal options &V2 Displays active profile Storing a Telephone Command Line &Zx=n, *CNx,n, *ND Nine stored phone number locations of up to 31 characters each are available in nonvolatile memory.
AT Commands Retaining / Restoring Options *RO This option is used when the modem is shared by two or more DTEs. When options are retained, the current configuration is not altered at disconnect. With options restored, the modem returns to the previously stored configuration on disconnect.
AT Commands Note Remote configuration is supported at all rates except 300 bps. Remote Configuration Security The correct security code must be received by the remote modem before remote configuration can be established. Once established, the local DTE becomes a virtual terminal and can serve both local and remote modems. After starting remote configuration, the local DTE serves the remote modem. To return DTE service to the local modem while in remote configuration, issue the +++ escape sequence.
AT Commands Command Operation %P= Sets security code to a value 0 to 99999999 entered after the equal sign %P? Requests local security code to be displayed %P=D Access for remote configuration is not possible when security code is disabled %P=(blank) Clears security code The %P=D command disables remote configuration. To enable remote configuration, insert another security code. IMPORTANT: Do not forget your remote security code. Keep your code in a safe place.
AT Commands Remote Configuration DTE Speed *RB This option forces DTE speed to a particular setting, if desired.
AT Commands Remote Configuration Saving or Discarding Options *RQ This option allows the opportunity to discard an undesirable option.
Chapter 6 Protocols CCITT V.42 bis Error Control Protocol V.42 bis is an industry standard for error control adopted by the Consultative Committee for International Telephone and Telegraph (CCITT). The CCITT V.42 bis protocol incorporates two error control algorithms, LAPM and MNP. LAPM is a CCITT Link Access Protocol family member related to LAPB and LAPD, currently in use in other communications applications.
Protocols Auto-Reliable Mode In auto-reliable mode the modem negotiates to the highest protocol (LAPM or MNP) common to both modems. However, if a reliable connection cannot be established, auto-reliable allows the protocol to fallback to normal mode. Constant Speed Interface The modem serial port adapts to the data rate of the DTE and does not change speed if the DCE-to-DCE data link connects at another speed. Therefore, the DTE-to-DCE interface speed is constant.
Protocols Direct Mode The DTE speed and DCE speed are forced to be the same. No error control or buffering. Note In direct mode, with the DCE link established at a rate other than the original DTE speed, the modem issues the connect message for the new DTE speed at the original rate. All subsequent data will be sent to the DTE at the new DCE speed.
Protocols Table 6-1.
Protocols Serial Port (DTE) Constant Speed \J The \J command allows DCE and DTE to operate at different speeds. The \J1 command forces serial port (DTE) speed to follow data link speed in any mode. If the modem is in direct mode (\J1) and a DCE link is established at a speed other than that of the original DTE autobaud speed, the modem will issue the CONNECT message for the new DTE speed at the original rate. All subsequent data will be sent to the DTE at the new DCE speed.
Protocols Operating Mode \N Select theV.42 bis mode to be used in data mode. An \Nn command issued during command mode while a connection is in progress will not affect the current connection but will be acted on for subsequent connections. LAPM or MNP protocol operation is referred to as MNP-only mode, and the auto-reliable modes allow protocol fallback.
Protocols Serial Port Flow Control \Q The \Q commands set the type of flow control used by the serial port. If the serial port speed exceeds that of the modem connection, characters may be sent by the DTE to the modem faster than it can send them to the remote modem. The modem holds characters in an internal buffer until they can be transmitted. When this buffer is full, the modem uses flow control to stop data from the DTE.
Protocols \Q5 Enable DCE XON/XOFF flow control \Q6 Enable DCE RTS flow control \Q7 Enable DCE RTS flow control XON/XOFF Pass Through \X This option is active when flow control of the modem by the DTE has been selected for XON/XOFF and the connect mode is MNP-only or normal. It enables or disables sending local flow control characters (XON/XOFF) to the remote modem as well as being acted on in the local modem.
Protocols Note The Modem 3600 will transmit the XON/XOFF characters to start/stop data transmission from the remote modem. The Modem 3600 will not respond to the XON/XOFF characters. This activity ensures that a false XON/XOFF is not detected resulting in data loss. Break Control \Kn Use \Kn (n = 0-5) to indicate the action taken by the modem when a break is encountered.
Protocols A break is sent to the serial port while the modem is in connect state during a direct connection (no protocol, data not buffered). Command \K, \K2, \K4 Operation Immediately send break to the remote modem and enter command mode when break is through \K1, \K3, \K5 Immediately send break to the remote modem A break is received from the remote modem while the modem is in connect state during a normal connection (no protocol, data buffered).
Protocols Maximum Reliable Block Size \A The \A command sets the maximum transmit block size for MNP connections. Use this command to force the modem to transmit smaller blocks in an MNP connection. A smaller block size maximizes throughput when marginal line conditions are causing errors. The modem sends a block up to the size specified by the \A command.
Protocols V.42bis Data Compression %C The %C command determines application of data compression while running LAPM protocol.
Chapter 7 Test Mode Operation Diagnostic tests are used to isolate faults in the communications path. Diagnostic tests terminate after the period of time specified by S18. If S18 is set to 0, the timer is disabled and tests will run continuously. Tests may also be terminated by the &T command. When in test modes without a test pattern, issue the escape sequence +++ to return to command mode before terminating the test with the &T command.
Test Mode Operation Note These tests do not apply to fax mode and should only be performed when the modem is configured for data operation. LDL, RDL, and RDL/TP tests are initiated after making an online data connection in normal or direct mode only. LAL and LAL/TP are initiated while in offline command mode. These tests can be initiated by AT commands or by using the LCD front panel SELECT TEST menus. Refer to Table 7-2. Note Bold text indicates command parameter defaults. Table 7-2.
Test Mode Operation For example, to run the self test analog loopback test for 30 seconds, enter ATS18=30&T8 The modem should respond with 000 after 30 seconds. Testing the Local Modem Test local operation with the modem offline in command mode. Use LAL and LAL/TP to test the local modem and the communications to the local DTE. Note Figures 7-1 through 7-5 include LED test indications. These indications are valid when DTE options are set by factory option set #1 and RTS is active from the DTE.
Test Mode Operation For 2-wire operation, Analog Bilateral Loopback is invalid. In 4-wire operation, Analog Bilateral Loopback connects the receive line to the transmit line through a buffer amplifier. Test the local DTE and cable by entering the &T1 command. Enter a test message and verify it is echoed on the screen. If it is not returned exactly as entered, the terminal equipment or data cable is at fault.
Test Mode Operation Testing the Remote Modem Use LDL, RDL, and RDL/TP in the online data mode to test the remote modem and phone line. Enter the escape sequence after making a connection to return to command mode. The appropriate test command, &T3, &T6, or &T7, can then be entered to initiate an online test. Local Digital Loopback &T3 After making the data connection, enter the escape sequence to return to command mode. Entering &T3 puts the local modem in digital loopback.
Test Mode Operation Grant/Deny RDL Request &T4, &T5 Local operators can deny a request from the remote modem for remote digital loopback. To allow your modem to be placed in RDL by a remote operator, enter AT&T4 To prevent your modem from entering RDL, enter AT&T5 Remote Digital Loopback &T6 The initiating modem signals the remote modem to go to Digital Loopback. The remote modem receives and then retransmits data back to the local modem.
Test Mode Operation Remote Digital Loopback with Self Test &T7 After making the data connection, enter the escape sequence to return to command mode. Entering &T7 places the remote modem in digital loopback provided the remote operator enters &T4 to allow an RL request. Once in RDL/TP, the local modem transmits a test pattern and automatically verifies that the remote modem is looping the pattern back (Figure 7-5). Enter &T to exit RDL/TP and return to command mode.
Test Mode Operation DTE Controlled Remote Digital Loopback (Pin 21) *RD To enable DTE Controlled Remote Digital Loopback, enter *RD1. Enabled, the modem goes into Remote Digital Loopback when it detects an off-to-on transition of pin 21 while in the online data mode. The test ends when it detects an on-to-off transition of pin 21 and then returns to online data mode. To disable this function enter the *RD command.
Chapter 8 Security The Modem 3600 series provides three features to assure secure operation of the modem. These features are front panel password protection, auto callback, and secure mode of operation. Front panel password protection is discussed in Chapter 4. Two levels of major security operation are available: high and low. The AT commands for each level are explained below.
Security Low Security Operation Low security operation provides password protection against unauthorized dial-up access. High security is another feature which is discussed later in the “High Security” section on pa ge8-4. The security feature can be enabled/disabled with AT commands when operating on a dial-up system. Transmitted data and received data lines are suppressed to the host DTE during security validation; all other signals (CTS, DSR, RI, etc.) operate as selected.
Security After receiving the $, the secure remote modem accepts the security code and waits for a carriage return. Entering more than ten characters is invalid and causes the secure modem to disconnect. Entering a valid password causes the calling party's DTE to display PASSWORD ACCEPTED. Local Operation When accessing the local modem, the password is not required except when the user wants to change a security option.
Security Set Password $S=x The $S=x command sets an empty password location to x. This command only applies when no password or only one is stored in memory. It cannot be used to change a password. Changing a Password $C=x, y The $C=x,y command changes either password where x represents the old password and y is new one. Deleting a Password $C=x, The $C=x,- command deletes password x from memory. Security is automatically disabled if the last password is deleted.
Security Operating without High Security The modem is factory set with security disabled. In this mode the local DTE is connected to the local modem as usual, but the command to enable or view the status of the security feature will be accepted and processed. Operating with High Security With high security enabled, each user must follow the appropriate logon procedure. The procedure for remote users is determined by their assigned security level.
Security Superuser The superuser has access to all user information for administrative purposes and can change user logon requirements and privileges. Superuser status can be gained at the local modem or from a remote modem via remote configuration, if the “Remote Superuser” option is enabled. The superuser must first logon as a regular user, then request the superuser privilege. Incorrect attempts to gain superuser privilege are logged in the user’s status information field in nonvolatile memory.
Security After seven calls (the default in remote configuration), the ILLEGAL ATTEMPTS counter will have reached maximum and the user will be suspended. Default Passwords The modem is shipped from the factory with a default password for the superuser and for one regular user. They are • SUPERUSER (System administrator) • USER 1 (User number 1) Passwords for users 2 through 50 are left blank. It is recommended that the superuser change the default SUPERUSER and USER 1 passwords as soon as possible.
Security Setting Passwords $Pn=pw$pw Select a password between 4 and 34 printable ASCII characters. To store the password enter AT$Pn=pw$pw where n is the user number (0-50) and pw is the new password which is entered twice to ensure that is has been entered correctly. The $ character is used as the marker between the dual password entries and cannot be used as part of the password. Passwords cannot be recalled from nonvolatile memory.
Security Level 1 security does not require a callback number; however, if the security level is changed to level 2 or 3 a callback number will be required. The callback number should be programmed initially using the $Cn=m command. Where n is the user number and m is the callback number. Extended Features $W $W1 A regular user can change his password and callback number if the local superuser has enabled the $W1 option.
Security The Modem 3600 responds by scrolling any illegal attempt information onto the screen as in the following example: USER NUMBER: 01, ILLEGAL ATTEMPTS: 1, STATUS: NORMAL USER NUMBER: 14, ILLEGAL ATTEMPTS: 7, STATUS: SUSPENDED OK Enter the $Mn command (where n equals user number) to reset a specific user's illegal attempt count. Enter the $M* command to reset all of the user’s illegal attempt counts.
Security Verify User Information $In, $IBn Security level and callback number can be displayed using either the $In or $IBn command. To display the assigned security level and callback number for a single user enter AT$In where n is the user number. A regular user can only check his own information. A user with superuser privileges can check any user's information.
Security If the password entry is incorrect, the password entry field will be cleared and the remote user will be allowed further entries until the number of invalid attempts matches the lockout threshold stored in S77. At this point the secure Modem 3600 drops the call. If the password entry is correct the secure modem sends the PASSWORD ACCEPTED message to the remote site.
Chapter 9 Fax Operation The Modem 3600 can send and receive fax documents at speeds up to 14,400 bps, with the appropriate software. As a fax modem, the modem conforms to EIA-578, which defines a standard interface between a PC with fax software and the DCE as a fax modem. When used with a Class 1 fax software package, Modem 3600 is CCITT Group 3 compatible and can send and receive documents at 2400, 4800, 7200, 9600, 12,000, or 14,400 bps with any Group 3 fax machine or PC with a fax modem.
Fax Operation Modem Initialization For fax operation, most fax software packages are equipped with a fax initialization command string. Entering this command sets the active profile for fax operation. In some cases certain options should be modified for particular requirements. The fax software manual provides information about requirements. Fax Defaults Factory defaults, along with the initialization command, support fax operation.
Fax Operation Fax Associated Options A number of options can be changed without any effect on fax operation. These include items like speaker volume and pause for carrier. Appendix E lists the AT commands. These commands can be incorporated by personal preference into the initialization command. Compare fax operation requirements with Appendi xA and if necessary generate an initialization command string compatible with the software and the modem.
Fax Operation The Class 1 standard assumes a serial asynchronous DTE-DCE connection using EIA-232D (or CCITT V.24) circuits. EIA-232D circuits AB (signal ground), BA (transmitted data), and BB (received data) are required for fax operation, while additional circuits are optional. Refer to Chapter 2 for hardware installation and EIA-232D data interface information.
Fax Operation After dialing the specified number in fax mode, the modem generates 1100 Hz CNG tones in accordance with T.30 while trying to detect either CED (answer back tone) or the HDLC preamble of the first T.30 frame. The CNG tones cease after detecting either of these two signals. To allow proper interaction with manually answered fax stations, detection of CED is not required. After detecting 1650 Hz (i.e., the HDLC preamble of the first frame), the modem enters V.
Fax Operation Off Hook H1 The H1 command instructs the modem to go off hook. In fax mode, this might be used when the user has used manual dialing to place a fax call. In this case, no CNG tones are generated and the initial +FRH=3 is not implied; it must be explicitly issued by the software. Class 0 Operation +FCLASS=0 Setting the Service Class to 0 with the +FCLASS=0 command sets the modem in data mode. This default setting is normally only changed by software if needed.
Fax Operation Receive Silence +FRS=(Time) The command +FRS= causes the modem to listen for silence and report back an OK result code when the line has been silent for the specified amount of time. The (Time) value is in 10 ms increments from 0 to 2.55 seconds. The modem aborts the command and sends an OK result code if the DTE sends an additional character, which is discarded, during the command execution. This command returns an ERROR result code if issued while the modem is on hook.
Fax Operation Table 9-1. Values for Fax Modulation (Continued) Value Modulation Speed 98 V.17 9600 bps * 121 V.17 12000 bps 122 V.17 12000 bps * 145 V.17 14400 bps 146 V.17 14400 bps* *with short train The Modem 3600 returns an ERROR result code if any of the above commands are issued while the modem is on hook. Facsimile Transmit +FTM=(Mod) +FTM=(Mod) causes the modem to transmit data using the modulation and speed selected with the (Mod) parameter. For V.27 ter, V.29, and V.
Fax Operation HDLC Transmit +FTH=(Mod) +FTH=(Mod) causes the modem to transmit HDLC framed data using the modulation and speed selected with the (Mod) parameter. For V.27 ter, V.29, and V.17 modulations, the modem will first transmit the required training sequence (with echo protector tone). Configured for HDLC transmission, the modem transmits HDLC flags and returns the CONNECT result code.
Fax Operation Class 1 Result Code +FCERROR If the modem detects any carrier or tone that differs from that specified in a +FRM or +FRH command, it sends the +FCERROR result code and returns to command state, allowing the DTE to attempt a recovery. The numeric form of this response is +F4. Fax Autoanswer +FAA= The modem can be set up to automatically detect if a fax or data call is being answered. The command +FAA=1 enables this function and +FAA=0 disables it.
Chapter 10 Status Registers S-Registers Most modem configuration information is stored in a part of memory called status (S) registers. During operation this information is used to determine modem functions. Information stored in S-registers can be changed by the AT or V.25 command sets and by pushbuttons in response to the LCD prompt. These are the preferred methods. Some software programs also access S-registers by the AT command set, but this action is transparent to the user.
Status Registers Bit values for S-registers must not be confused with the total register value. Bit values are counted separately for each option group, called bit mapping, while the register value is the cumulative decimal or hexadecimal total. The decimal value counts all eight bits as a single group. Hexadecimal values split the bits into two groups of four each. Writing to an S-register changes the total value. Figure 10-2 shows the difference between decimal calculation and hexadecimal calculation.
Status Registers S-Register Operation Sn?, Sn?^ Enter ATSn? to read a register value, where n=register number for a decimal value or ATSn?^ for a hexadecimal value. For example, to determine the current backspace character enter ATS5? The screen will show the ASCII value of the backspace character stored in register S5. Changing Register Values Sn=v, Sn=^v To change an option using ATS commands requires the operator to precalculate the revised decimal (or hexadecimal) total.
Status Registers Individual Bit Command Sn . # =v Some operators use AT commands as the primary method of changing S-register options. However, some options stored in registers do not have an associated AT command. For these options, the individual bit AT command can be used to change the setting of the bit controlling the option. To change a single bit value within a register, enter ATSn.#=v where n = register number, # = bit position 0 through 7, and v = bit value 1 or 0.
Status Registers Escape Character S2 The standard escape character is a + sign (ASCII value of 43). To change the character, set S2 to the desired ASCII value (0-127). To disable the escape command, set S2 to any value greater than 127 (128-255). End-of-Line Character S3 The standard end-of-line character is the carriage return (ASCII value of 13). This character ends each command as it is sent to the modem. It is also sent by the modem after each status message or number code.
Status Registers Pause Interval for Comma S8 When a dial command contains a comma, the modem pauses the number of seconds in S8. Change S8 to change the basic pause interval (0-255), or use several commas in a row for greater delay during dialing. The default value is 2 (seconds). Carrier Detect Time S9 S9 contains the amount of time (0-255) in 0.1 second increments that the carrier must be present to be recognized. The default value is 6 (0.6 second).
Status Registers S13 Not used Bit Mapped S14 Note In the tables for bit mapped S-registers, bold text indicates bit value defaults. Note When bit-mapped S-registers have parallel AT commands, the commands are listed in the register tables as a cross reference. If a command does not exist for the option, the column is left blank.
Status Registers System Tests S16 This register contains the status of system test options.
Status Registers Bit Mapped S21 Bit Comman Value d Description 6, 0 00 10 01 11 &S &S1 &S2 &S3 DSR forced on DSR on when online DSR off 5 seconds after disconnect DSR follows off hook (OH) 5, 1 00 10 01 &C &C1 &C2 11 &C3 DCD always on DCD on while carrier present DCD on except for 5 seconds after disconnect DCD follows RTS on remote modem; not valid in reliable mode 0 1 &R &R1 CTS follows RTS by S26 delay CTS always on 4, 3 00 01 &D &D1 10 11 &D2 &D3 Modem ignores DTR Modem assumes comman
Status Registers Bit Mapped S22 Bit Value Command 1, 0 00 L 01 L1 10 L2 11 L3 3, 2 00 M 01 M1 10 M2 11 M3 X 6-4 000 7 001 X1 010 X2 011 X3 100 X4 0 1 &P &P1 Bit Mapped Description Speaker volume low Speaker volume low Speaker volume low Speaker volume high Speaker off Speaker on until carrier detect Speaker always on Speaker off when modem is dialing CONNECT message only, blind dials, no busy detect CONNECT / appropriate code for rate, blind dials, no busy detect CONNECT / appropriate code f
Status Registers DTR State Recognition S25 The S25 register specifies the amount of time (0-255) in 0.01 second (10 ms) increments that DTR must stay high or low in order to be recognized as such. The default value is 5 (0.05 second). RTS/CTS Delay S26 The S26 register specifies the amount of time (0-255) in 0.01 second (10 ms) increments between the RTS signal and the CTS signal. The default value is 0.
Status Registers Bit Mapped S29 Bit 0 Value Command Description 0 *NT1 Enable AT command set 1 *NT Disable AT command set 1 0 1 *RO *RO1 Options retained at disconnect Options restored at disconnect 2 0 1 *FT *FT1 Disable V.32 fast train Enable V.32 fast train 6, 3 -- -- Reserved 7 *FB *FB1 DTE fallback disabled DTE fallback enabled 0 1 Bit Mapped S30 Bit 0 Value Command Description --Reserved 1 0 1 -- V.25 ASCII V.25 EBCDIC 2 0 1 -- V.25 VAL enabled V.
Status Registers Bit Mapped S32 Bit 0 Value Command Description 0 &L1 2-wire (leased line only) 1 &L2 4-wire (leased line only) 1 0 1 *LC1 *LC2 Line current disconnect = short Line current disconnect = long 2 0 1 *LC *LC1 or *LC2 Line current disconnect = disable Line current disconnect = enable 3 0 1 *DB *DB1 Dial backup = manual Dial backup = automatic 7-4 -- -- Reserved S33 Reserved Bit Mapped S34 Bit Value Command Description 0 -- -- Reserved 1 0 1 *DG *DG1 Bilateral dig
Status Registers Remote Configuration Guard Time S42 Select the remote configuration guard time (0-255) in 20 ms intervals. The default is 50 (1 sec). S43 Reserved XON Character from DTE S44 Select the XON character (0-127) to be sent from the DTE. The default value is ASCII 17. XOFF Character from DTE S45 Select the XOFF character (0-127) to be sent from the DTE. The default value is ASCII 19. S46-48 Reserved XON Character to DTE S49 Select the XON character (0-127) to be sent to the DTE.
Status Registers Leased Line Transmit Level S52 The S52 register selects leased line transmit level from 0 to -30 dBm in 1 dBm increments. The default value is 0.
Status Registers Flow Control S54 The S54 register selects the flow control options.
Status Registers V.
Status Registers Break Control S59 The S59 register determines the action taken when a break is encountered. Refer to the “Break Control \Kn” section on page6-9 for further information.
Status Registers Bit Mapped S60 Bit 0 Value Command Description 0 %E Disable auto retrain 1 %E1 Enable auto retrain 1 0 1 2 0 1 MNP compression disabled MNP compression enabled \C \C1 Disable auto-reliable data buffer Buffer data for 4 seconds or 200 characters 5- 3 -- -- Reserved 6 0 \R 1 \R1 RI blinks for ring and remains on for duration of call RI blinks for ring and turns off when call is answered 0 1 \V \V1 7 DTE Options Disable protocol response messages Enable protocol respons
Status Registers Disconnect Buffer Delay S62 The S62 register determines the delay before disconnect, to allow buffers to empty, when disconnect conditions exist. Bit Value Command Description 7-0 0 1-255 %D %Dn Buffer disabled Disconnect buffer delay value (seconds) Maximum Transmit Block Size S63 The S63 register sets the maximum transmit block size.
Status Registers Link Speed Status S67 The S67 register indicates the true data link (DCE) speed. This register is for reference only.
Status Registers DCE Independent Speed S69 The S69 register selects the DCE independent rate operation. When S69 is 0, DTE and DCE rates are equal and the maximum originate connect rate up to 14,400 bps is determined by S80. When S69 is non-zero, the maximum originate connect rate is determined by S69.
Status Registers Operating Mode S70 The S70 register determines the protocol operating mode and action taken on an MNP link attempt failure. LAPM is assigned highest priority. Example: With \N7 selected the modem tries an LAPM connection first; if unsuccessful the modem tries an MNP connection; if also unsuccessful, the modem connects in normal mode. Modes allowing protocol fallback are referred to as auto-reliable.
Status Registers Bit Mapped S72 Bit 0 Value Command Description 0 \J Disable slaved DTE/DCE (constant speed DTE on) 1 \J1 Disable slaved DTE/DCE (constant speed DTE on) 2, 1 --Reserved 3 0 1 &R9 &R2 CTS does not follow DCD CTS follows DCD 6-4 -- -- Reserved 7 0 1 -- Disable autocallback Enable autocallback Password Timeout S73 S73 sets the length of time the remote user has to enter a password before the secure Modem 3600 drops the call. The default is 0.
Status Registers Callback Retry Delay S76 The length of time that the modem waits, after an unsuccessful attempt to connect to the remote unit at the programmed callback number, before trying to place the call again. The default is 15 seconds. Bit Value Command Description 7-0 0-255 -- Time in seconds (0 = disable) Lockout Threshold S77 Set the number of incorrect remote user password attempts that can be made before the call is dropped. The default is 0.
Status Registers Serial Port or DTE Speed S80 The S80 register indicates the serial port speed.
Status Registers Minimum DCE Speed S81 Bit 4-0 Value 00000 00001 00011 00100 00101 00111 01000 00110 01001 01010 00010 01011 01100 01101 01110 01111 10000 10001 10010 Command %L %L1 %L2 %L3 %L4 %L5 %L6 %L7 %L8 %L9 %L10 %L11 %L12 %L13 %L14 %L15 %L16 %L17 %L18 Description Disabled Disabled 1200 bps 2400 bps 4800 bps 9600 bps uncoded 9600 bps trellis 7200 bps 12,000 bps 14,400 bps 600 bps 16,800 bps 19,200 bps 21,600 bps 24,000 bps 26,400 bps 28,800 bps 31,200 bps 33,600 bps 7-3 -- -- Reserved Negotia
Status Registers Bit Mapped S84 Bit Value Command Description 0 0 1 -- Enable any key abort Disable any key abort 7-1 -- -- Reserved S85-S87 Reserved Modulation Type S88 Bit 3-0 Value Command Description 0000 -Auto mode 0001 V.21 0010 B103 0011 Reserved 0100 B212A 0101 V.22 bis 0110 V.27 (lease line only) 0111 Reserved 1000 V.29 (lease line only) 1001 Reserved 1010 V.33 (lease line only) 1011 V.32 bis 1100 V.
Status Registers Current Modulation S91 The S91 register is for reference only. Bit 3-0 Value Command Description 0000 -Auto mode 0001 V.21 0010 B103 0011 Reserved 0100 B212A 0101 V.22 bis 0110 V.27 (lease line only) 0111 Reserved 1000 V.29 (lease line only) 1001 Reserved 1010 V.33 (lease line only) 1011 V.32 bis 1100 V.
Status Registers V.34 Settings S95 Bit Value Command Description 0 0 1 -- Disable V.8 for non-V.34 answer Enable V.8 for non-V.34 answer 3-1 -- -- Reserved 4 0 1 -- Disable non-linear encoding Enable non-linear encoding 5 0 1 -- Disable pre-emphasis Enable pre-emphasis 6 0 1 -- Disable constellation shaping Enable constellation shaping 7 0 1 -- Precoding disabled Precoding enabled V.
Chapter 11 V.25 bis Autodialer V.25 bis is an option that allows dialing functions to be controlled using synchronous data. Select V.25 bis through the appropriate &M command in the AT command set (refer to the “Asynchronous / Synchronous Mode Selection &M” section on pa ge5-25). If using the LCD, 1) Scroll through the menu to Main Menu 5, MODIFY CONFIGURATION. 2) Advance to and enter the DTE PARAMETERS submenu. 3) Select SYNC DATA. 4) Advance to DIAL METHOD. 5) Select one of V.25 BISYNC DIALER, V.
V.25 bis Autodialer Autodialer Command Strings and Parameters Most command strings for the autodialer include two parts: the command itself and the parameters that follow. For the purposes of this chapter, parameters can be telephone numbers or anything appropriate to V.25 bis as described in the following text. Parameters are separated by semicolons. For example: PRN a; nnn . . . n where a= the phone number address in memory and nnn...n= the phone number. The a and the nnn...n are both parameters.
V.25 bis Autodialer &M3Manual dial/sync data &M4V.25 bis dialer/BISYNC protocol/sync data (ASCII) &M5V.25 bis dialer/SDLC protocol/sync data (NRZ) &M6V.25 bis async dial/sync data &M7V.25 bis async dial/async data &M8V.25 bis dialer w/BISYNC protocol/sync data (EBCDIC) &M9V.25 bis dialer w/SDLC protocol/sync data (EBCDIC) (NRZ) &M10V.25 bis dialer w/SDLC protocol/sync data (ASCII) (NRZI) &M11V.25 bis dialer w/SDLC protocol/sync data (EBCDIC) (NRZI) • Separator fields depend on the data format.
V.25 bis Autodialer 3) Any parameter containing too many characters. INVPVThis message has one of three possible meanings: 1) Any parameter set containing invalid characters 2) Any parameter or parameter set containing no valid (only ignored) characters 3) Any parameter set containing an out-of-range parameter Dial Parameters Table 11-1 lists and describes the parameters used in autodialing. The memory available for dialing can hold up to 40 characters. Parameters inserted for readability are not counted.
V.25 bis Autodialer Dial Command CRN nn...n The dial command is a CRN followed by the number to be dialed nn...n. The modem accepts up to 40 dial parameters, excluding the CRN command and any leading spaces. Responses: VALValid command received. Transmitted on receiving an errorfree command with no transmission error such as a parity error. This confirmation is sent before the command is executed. INVCUInvalid command - command unknown.
V.25 bis Autodialer Intermediate Call Progress Response The following response is given only if enabled. See Option Definition 002 below. CNX@nnnnnBPS where nnnnn is the line speed. This connect response appears after handshake completed, but before DSR is activated. This response is required if the intermediate call progress option is enabled. Dial Stored Number CRS a The command for dialing a stored number is CRS followed by the one digit address a for the stored number to be dialed.
V.25 bis Autodialer Request List of Stored Numbers RLN The request list of stored numbers command is an RLN. Responses: INVCUInvalid command - command unknown. Example:TLN INVMSInvalid command - message syntax error. Example:RLN; If no number is stored at the specified address nothing is returned for that address. The separator {sep} is a LSN sequence for BISYNC format (the last LSN string terminates with per V.25 bis).
V.25 bis Autodialer Connect Incoming Call CIC No parameters are required. If there is an incoming call, the modem immediately answers the call. If no call is incoming, the command is ignored. Responses: Same as for the DIC commandI Redial Last Number CRR n The CRR n command redials the last number a maximum of n times. If no parameters are present, the modem redials once.
V.25 bis Autodialer If circular linking (1 to 8 to 7 to 1) is used, dialing is discontinued after the addressed number in the dial command has been dialed twice. If only one parameter follows the PRL command, the number at address a is unlinked from its forward link. For example, if the link list 4 to 8 to 3 to 7 to 9 to 1 exists andPRL 7 is received, 7 would be unlinked from 9, but not from 3. This would result in two link lists: 4 to 8 to 3 to 7 and 9 to 1. Responses: VALValid command received.
V.25 bis Autodialer INVMSInvalid command - message syntax error. Example:RLL; LSLList linked numbers. In all LSL examples, if no number is stored at the specified address no response is sent. The separator field for BISYNC is an LSL The last LSL string ends with per V.25 bis. For synchronous bit oriented operation, each LSL string is treated as an individual message per V.25 bis.
V.25 bis Autodialer The modem must be able to accept 40 non-ignored characters besides the PRO command (leading zeros and semicolons are not considered ignored characters). Responses: VALValid command received. Transmitted on receiving an errorfree command with no transmission error such as a parity error. This confirmation is sent before the command is executed. INVCUInvalid command - command unknown. Example: TRO 0;1;1 INVMS Invalid command - message syntax error.
V.25 bis Autodialer • An out-of-range value for a particular option is specified In the above example, if the fourth value in the option string is undefined or out-of-range for option 13 in a certain modem (and no other error conditions apply), options 10 through 12 would be changed as specified in the command message. The next option to be changed would be option 13.
V.25 bis Autodialer INVCUInvalid command - command unknown. Example:TRP INVMSInvalid command - message syntax error. Examples:PRP;1 PRP Q INVPS Invalid command - parameter syntax error. Examples:PRP 1; PRP 1;1 PRP 001 INVPV Invalid command - parameter value error. Example:PRP 5 where factory default 5 is not defined for the modem. Current modem factory options are 1-9.
V.25 bis Autodialer The separator {sep} for BISYNC is an LSO sequence for the sync format (the last LSO string terminates with per V.25 bis). For synchronous bit oriented operation, each LSO string is treated as an individual message per V.25 bis. If no parameters follow, all stored options are sent to the DTE as LSOxxx;ooo{sep}xxx;ooo... Each value must be padded with leading zeros so that each field has three characters.
V.25 bis Autodialer Table 11-2. V.
V.25 bis Autodialer Table 11-2. V.25 Autodialer Options (Continued) Option Definition Settings Default 064: Line current disconnect 0 - Off 1 - Short (8 ms) 2 - Long (90 ms) 2 076: Speaker control 0 - Off 1 - On 4 - On until CD 6 - Off when dialing 4 077: Speaker volume 0 - Low 1 - Medium 2 - High 1 085: Constant carrier RTS/CTS delay 0 to 250 ms 10 ms increments 0 087: DTR dropout timer DTR must turn off for this length of time to be recognized.
V.25 bis Autodialer Table 11-2. V.25 Autodialer Options (Continued) Option Definition Settings Default 092: Guard tone 0 = None 1 = 550 Hz 2 = 1800 Hz 0 093: Carrier detect delay 0 - Off; 1 to 255 10 ms increments 6 (60 ms) 094: Loss of carrier disconnect 0 - Off 1 to 255 100 ms increments 14 (1.
V.25 bis Autodialer Table 11-2. V.25 Autodialer Options (Continued) Option Definition Settings 112 V.34 Select Threshold 000: Low 001: Medium 002: High 113 V.34 Asymmetric bit rates 000: Disabled 001: Enabled 903: Bilateral loop - If enabled and 0 - Disabled a test is commanded, bilateral 1 - Enabled loop is defined as follows: Test Bilateral Commanded Loop Loop 1 Loop 2 Loop 2 Loop 1 Loop 3 Loop 4 Loop 4 Loop 3 Default 0 Loop definitions per CCITT V.54.
Chapter 12 Maintenance Warning Disconnect power before performing maintenance. Although dangerous voltage levels are not exposed, disconnecting power ensures that no electric shock hazard is present. General The modem contains no internal electronic components that can be serviced or replaced by the user. Repairs should not be attempted by the user. Fuse Replacement If a fuse fails, replace it with one of equal rating. Repeated failure indicates a more serious problem.
Maintenance Calling Technical Support The Service and Support page at the back of this User’s Guide contains several phone and faxback numbers and the Web address. If calling Technical Support, please call from a location near the computer with the modem.
Appendix A Specifications Size Width7.0 inches (17.78 cm) Depth10.5 inches (26.67 cm) Height2.25 inches (5.72 cm) Weight2 lbs. 13 oz. (1.
Specifications Modem Data Rates 300, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200, 33600 bps. Fax Rates 14400, 12000, 9600, 7200, 4800, and 2400 Modulations V.34, V.32, V.22, V.21, V.27 bis, V.29, Bell 103, Bell 1200, V.17, V.33, V.22 bis, V.32 bis Fax Modulation Modulation Speed V.21 channel 2300 bps V.27 ter 2400 bps V.27 ter 4800 bps V.297200 bps V.177200 bps V.177200 bps with short train V.299600 bps V.179600 bps V.179600 bps with short train V.
Specifications Carrier Detect Level Dynamic to -43 dBm Telco Connection 8-pin modular jack, dial and private lines Testing 511 PN pattern (per V.52) V.54 remote loopback control Line Equalization Automatic adaptive RTS/CTS Delay From 0 ± 2 ms to 90 ± 2 ms, user selectable in 10 ms increments (The default is 0 ms.) Link Layer Protocols V.42/V.42 bis error correction and compression protocol MNP levels 2-5 error correction and compression protocol V.
Appendix B Phone Jack Descriptions DIAL Pin Functions The DIAL jack connects to the PSTN dial-up lines. Pin functions are as follows: Pin Function 1, 2, 3 Not used 4R Ring side of telephone line 5T Tip side of telephone line 6, 7, 8 Not used TELSET/LEASED LINE Pin Functions The 8-pin TELSET/LEASED LINE jack allows a standard telephone or a leased line to be connected to the modem.
Appendix C Hardware Options Jumper Option Selection Modem configuration is controlled by front panel pushbuttons and the LCD, AT or V.25 bis commands, and one hardware option jumper located on the PC board. Normally, jumpers do not have to be changed. If a change is required, remove the modem cover. The jumper diagrams on the following pages indicate the factory settings. Removing the Cover Warning Disconnect power before removing the cover.
Hardware Options Bottom of the modem Slots - Open the two slots on one side of the modem first. Then open the two on the other side. Figure C-1.
Hardware Options Figure C-2 shows a typical jumper configuration. Figure C-2.
Hardware Options Figure C-3 shows a typical jumper configuration. Figure C-3. Typical Jumper Configuration Ground Option Jumper Signal ground is normally connected to chassis ground. If interference exists, isolate signal ground from chassis ground. * factory setting Replacing the Cover To replace the cover, align the lock clips, rear guide grooves, and front lock tabs. Press the cover in place until the lock clips engage the lock prongs.
Appendix D Fault Isolation Procedure Fault Isolation Procedure This diagnostic test procedure and the indicator lights built into the modem allow a rapid check of the terminals, modems, and telephone line interface. This procedure can be used to verify normal system operation and to isolate faulty equipment in case of failure. Ensure the units are turned on and remote loops are enabled at both sites before starting the fault isolation procedure.
Hardware Options Modem and Telephone Line Check Part I 1) Configure the modem for LOCAL ANALOG LOOP WITH TEST PATTERN. This terminates the local modem telephone lines into 600 ohms and connects the local modem transmit output amplifier back to its own receiver through the AGC. Transmit input data from the terminal is inhibited and is substituted with a V.52 test pattern.
Hardware Options Part II This part determines the performance of the local and remote modems and the telephone circuits. It also determines each modem's ability to receive a transmitted signal from the other site, properly equalize and decode the signal and then loop this regenerated signal into the transmitter for transmission back to the other modem. This test applies to both leased line and dial line operation. 1) Configure the local modem for REMOTE DIGITAL LOOP WITH TEST PATTERN.
Appendix E Command Index and Defaults General This reference guide provides asynchronous command characters and their descriptions. The pages listed provide initial information on the commands. The S-registers listed are cross references (see the“Status Registers” section on page -21). Note Bold text indicates command parameter defaults.
Hardware Options Command Page W ! S-Reg page 5- S7 14 -- Description Wait for 2nd dial tone (S7 value) Flash switchboard R -- Switch to answer mode after dialing ; -- Return to command mode after dialing @ Sn E E1 H H1 page 5- -15 -- Wait for 5 seconds of silence page 5- S14 22 S14 Local character echo off page 5- -23 -- Hang up † Dial stored command line Local character echo on Forces modem off hook † H2 S14 Set H command to V.
Hardware Options Command Page Sn? S-Reg Sn?^ page 10 --3 -- Sn=v -- Description Read value in register n (decimal) Read value in register n (hexadecimal) Set v (value) in register n (decimal) Sn=v^ page 10 --3 Set v (value) in register n (hexadecimal) Sn.
Hardware Options Command Page &D S-Reg &D1 page 5- S21 20 S21 &D2 S21 &D3 page 5- S21 20 Description DTR ignored DTR recalls command mode DTR disconnects DTR disconnects and resets modem to stored configuration &F or &F1 page 5- -39 &F2 -- Restore factory configuration 2 † &F3 -- Restore factory configuration 3 † &F4 -- Restore factory configuration 4 † &F5 -- Restore factory configuration 5 † &F6 -- Restore factory configuration 6 † &F7 -- Restore factory configuration 7 † &F8 -
Hardware Options Command Page &M S-Reg page 5- S27, 25 S30 Description Asynchronous dial / asynchronous data &M1 S27 Asynchronous dial / synchronous data &M2 S27 Dials stored number when DTR off / on transition is detected / sync data &M3 S27 Manual dial / sync data &M4 S30 V.25 bis autodialer with BISYNC protocol / sync data &M5 S30 V.25 bis autodialer with SDLC protocol /sync data &M6 S30 V.25 bis async dialer / sync data &M7 -- V.
Hardware Options Command Page S-Reg Description &T1 page 7- -3 Initiate analog loopback † &T3 page 7- -5 Initiate digital loopback † &T4 page 7- S23 6 Grant remote commanded digital loopback † &T5 S23 Denies remote commanded digital loopback † &T6 -- Initiate remote digital loopback † &T7 page 7- -7 &T8 page 7- -4 Initiate self test analog loopback † &V page 5- -40 View configuration profiles &V1 page 5- -40 -- Display received signal status page 5- -38 Store current configura
Hardware Options Command Page %A %An %B S-Reg page 6- S64 6 S64 Description Disable auto-reliable fallback character Set auto-reliable fallback character to n (n = ASCII 1-127) † %B1 page 5- S69 28 S69 Use DTE speed/maximum DCE speed %B2 S69 1200 bps max %B3 S69 2400 bps max %B4 S69 4800 bps max %B5 S69 9600 bps uncoded max %B6 S69 9600 bps max %B7 S69 7200 bps max %B8 S69 12000 bps max %B9 S69 14400 bps max %B10 S69 600 bps %B11 S69 16800 bps max 300 bps max %B12 S69
Hardware Options Command Page %D S-Reg Description page 6- S62 4 S62 Disable disconnect buffer delay page 5- S60 30 S60 Disable auto retrain Disabled minimum DCE speed %L1 page 5- S81 29 S81 %L2 S81 1200 bps min %L3 S81 2400 bps min %L4 S81 4800 bps min %L5 S81 9600 bps uncoded min %L6 S81 9600 bps min %L7 S81 7200 bps min %L8 S81 12000 bps min %L9 S81 14400 bps min %L10 S81 600 bps %L11 S81 16800 bps min %L12 S81 19200 bps min %Dn %E %E1 %L Set disconnect buffer
Hardware Options Command Page %R S-Reg Description %R1 page 5- S53 30 S53 Disable automatic rate adaption %R2 S53 Enable automatic rate adaption medium BER %R3 S53 Enable automatic rate adaption using high BER Enable automatic rate adaption low BER %T page 7- -7 Transmit test pattern † %T= page 5- -43 Followed by a remote configuration security code, establishes remote configuration † %V page 5- -31 Display product revision level \A \A1 page 6- S63 11 S63 \A2 S63 Maximum block siz
Hardware Options Command Page \J S-Reg page 6- S72 5 Description Disable slaved DTE/DCE speed (constant speed DTE on) \J1 S72 Enable slaved DTE/DCE speed (constant speed DTE off) \J2 -- Enable 230.4 kbps DTE speed \J3 -- Disable 230.4 kbps DTE speed Note The 230.4 kbps DTE speed is available, but the DTE will not autobaud to 230.4 kbps. With the modem set for 115.2 kbps, enter AT\J2 to enable the speed, and reset the DTE for 230.4 kbps. When the modem is set for 230.
Hardware Options Command Page \Q S-Reg Description \Q1 page 6- S54 7 S54 \Q2 S54 Enable CTS flow control to the DTE \Q3 S54 Enables bilateral CTS/RTS flow control \Q4 S54 Disable DCE flow control \Q5 S54 Enable DCE XON/XOFF flow control \Q6 S54 Enable CTS flow control to the DTE \Q7 \R \R1 \T \Tn \V \V1 \X \X1 *AS S54 page 5- S60 21 S60 Disable DTE flow control Enable DTE XON/XOFF flow control Enable CTS flow control to the DTE Ring indicate, blinks for ring and remains on for durati
Hardware Options Command Page *DA *DA1 *DB *DB1 *DG *DG1 *FB *FB1 *FT *FT1 *IC *LA S-Reg page 5- -32 -- Description Switches modem to talk mode † Switches modem to data mode † page 5- S32 36 S32 Manual dial backup operation page 7- S34 7 S34 Disables bilateral digital loop page 5- S29 22 S29 Ignore pin 23 page 5- S29 32 S29 -- Automatic dial backup operation Enables bilateral digital loop Pin 23 transition causes DTE speed fallback Disable fast train Enable fast train Disregard incoming call pa
Hardware Options Command Page *MM7 S-Reg Description *MM8 page 5- -27 -- Reserved *MM9 -- Reserved *MM10 -- V.33 4-wire leased only *MM11 -- V.32 bis *MM12 -- V.34 V.
Hardware Options Command Page S-Reg Description *RR13 page 5- -31 Rate negotiate to 33600 † *TDn page 5- S51 33 Sets dial transmit level -10 to -30 dBm *TH page 5- S97 27 Low V.34 rate selection threshold (10-6 BER) *TH1 S97 Medium V.
Hardware Options Caller ID Commands Command Page *ID *ID1 S-Reg page 5- -17 -- Description Disable Caller ID Enable Caller ID Distinctive Ring Commands Command Page *DR *DR=1 S-Reg page 5- S53 18 S53 Description Disable Distinctive Ring Enable Distinctive Ring Fax Commands Fax Command Page +FCLASS=0 page 9- Service Class 0 (data modem) † 6 Service Class 1 (fax modem) † +FCLASS=1 +FCLASS? Display current Service Class settin g † +FCLASS=? +FAA= *FR Description Display available Service Class
Hardware Options Command Page Description +FTM=(MOD) page 9-8 Transmit data with (MOD) carrier * +FTS=(Time) page 9-6 Stop transmission and pause (10 ms intervals, 0-255) * * cannot be executed from remote configuration NOTE: The (MOD) parameter can be one of the following values: 0 or ValueModulationSpeed 3V.21 channel 300 bps 24V.27 ter2400 bps 38V.27 ter4800 bps 72V.297200 bps 73V.177200 bps 74V.177200 bps with short train 96V.299600 bps 97V.179600 bps 98V.179600 bps with short train 121V.
Hardware Options Security Commands Command Page Description Low Security $S=x $C=x,y page 8- Sets an empty password location to x 4 Changes either password where x represents the old password and y is the new one $C=x,- Deletes password x from memory $DR Reset security $D=x Disables security where x is either password $D? or $E? Displays the current status of security $E=x Enables security where x is either password High Security $Cn=m page 8- Set user callback number.
Hardware Options $Pn= pw$pw page 8- Set user password; n = user number and new 8 password (n = 0 for superuser pw = password) $Rn page 8- Remove a user (n = user number) 10 $S? page 8- Display current user status (superuser / user) 10 $W0 page 8- Disable user changes (password and callback 9 number) † $W1 Enable user changes (password and callback number) † $W2 Enable remote superuser † $W? Display user changes remote superuser option status $$ page 8- Local logoff 11 $n=pw page 8- Local l
Hardware Options Remote Configuration Commands Command Page Description %P=n page 5-42 Set remote configuration security code to value n (0 to 99999999) %P? Display local modem remote configuration security code %P= (blank) Clear security code *RA *RA1 page 5-44 Disable remote configuration Enable remote configuration *RB Remote configuration DTE speed = 300 bps *RB1 Remote configuration DTE speed = 600 bps *RB2 Remote configuration DTE speed = 1200 bps *RB3 Remote configuration DTE spe
Hardware Options Command Page Description *RF page 5-44 7 data bits, no parity, 2 stop bits *RF1 7 data bits, mark parity, 1 stop bit *RF2 7 data bits, odd parity, 1 stop bit *RF3 7 data bits, even parity, 1 stop bit *RF4 8 data bits, mark parity, 1 stop bit *RF5 8 data bits, no parity, 1 stop bit *RF6 8 data bits, odd parity, 1 stop bit *RF7 8 data bits, even parity, 1 stop bit *RQ *RQ1 E-20 page 5-45 Exit remote configuration, save new configuration Exit remote configuration, disca
Hardware Options Status Registers Default Factory Set #1 S-Reg RO/ RW S0 RW S1 RO S2 RW Escape sequence character S3 RW End-of-line character 13 (CR) S4 RW Line-feed character 10 (LF) S5 RW S6 RW Page Function page 1 Ring to answer 0-4 Ring count page 1 Backspace character 0-5 Pause before blind dialing 1 0 43 (+) 8 (BS) 2 (2 sec) S7 RW Pause for carrier 30 (30 sec) S8 RW Pause for comma 2 (2 sec) S9 RW Carrier validation 6 (0.
Hardware Options Default Factory Set #1 S-Reg RO/ RW S32 RW S34 RW S35 RW Default dial number S41 RW page 1 Remote configuration escape 0-13 character S42 RW Remote configuration guard time 32 hex S44 RW DTE XON character 11 hex S45 RW DTE XOFF character 13 hex S49 RW DCE XON character 11 hex S50 RW DCE XOFF character 13 hex S51 RW Dial transmit level 10 S52 RW S53 RW S54 Page Function page 1 Bit mapped 0-13 Bit mapped 06 hex 60 hex 1 3d hex page 1 Lease transm
Hardware Options S-Reg RO/ RW Page Function Default Factory Set #1 S70 RW S71 RO S72 RW S73 RW S74 RW S75 RW S76 RW S77 RW S78 RW S79 RW S80 RO page 1 Serial port speed 0-26 20 S81 RW 1 S82 RW page 1 Minimum DCE rate 0-27 Bit mapped S84 RO page 1 Negotiation status 0-28 Modulation type 0 page 1 Current modulation 0-29 V.
Hardware Options V.25 bis Dialer Commands Synchronous Command Page Description CIC page 11-8 Connect incoming call command CRN nn...n page 11-5 Dial command (nn...
Hardware Options Synchronous Command Page Description PRPn page Restores current option settings to the factory 11-12 defaults in default bank n (1-9) RLL page 11-9 Request list of linked numbers command RLN page 11-7 Request list of stored numbers command RLOxxx;yy page Request list of stored options command 11-13 (xxx = register address, yy = option count) RLV page Request list of version information command 11-10 Modem 3600 E-25
Hardware Options V.
Hardware Options Response Message Meaning CNX @ 7200 bps Intermediate call progress - connection made at 7200 CNX @ 4800 bps Intermediate call progress - connection made at 4800 CNX @ 2400 bps Intermediate call progress - connection made at 2400 CNX @ 1200 bps Intermediate call progress - connection made at 1200 INC Incoming ring detected INVCU Invalid command - command unknown INVMS Invalid command - message syntax error INVPS Invalid command - parameter syntax error INVPV Invalid comma
Hardware Options Factory Option Sets Factory Option Set #1 (Asynchronous Dial-up with V.42 bis Protocol) (AT&F or AT&F1) MODEM OPTIONS DCE rate - 33600 Modulation automode V.34 rate threshold high V.34 asymmetric rate enabled Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Dial line Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set # 2 (Asynchronous Dial-up without V.42 bis Protocol) (AT&F2) MODEM OPTIONS DCE rate - 33600 Modulation automode V.34 rate threshold low * V.34 asymmetric rate enabled Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Dial line Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set #3 (Synchronous Dial-up) (AT&F3) MODEM OPTIONS DCE rate - 33600 Modulation automode V.34 rate threshold low * V.34 asymmetric rate disabled * Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Dial line Jack type RJ11 Line current disconnect long Long space disconnect disabled * V.
Hardware Options Factory Option Set # 4 (Synchronous 4-wire Leased Line) (AT&F4) MODEM OPTIONS DCE rate - 33600 V.34 modulation * V.34 rate threshold low * V.34 asymmetric rate disabled * Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Leased line * 4-wire * Transmit level - 0 dBm * Dial backup manual * Lookback timer - 15 min * Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set #5 (Asynchronous 4-wire Leased Line withV.42bis Protocol) (AT&F5) MODEM OPTIONS DCE rate - 33600 V.34 modulation * V.34 rate threshold high V.34 asymmetric rate enabled Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Leased line, 4-wire * Transmit level - 0 dBm * Dial backup manual * Lookback timer - 15 min * Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set # 6 (Asynchronous 4-wire Leased Line withoutV.42bis Protocol) (AT&F6) MODEM OPTIONS DCE rate - 33600 V.34 modulation * V.34 rate threshold low * V.34 asymmetric rate enabled Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Leased line, 4-wire * Transmit level - 0 dBm * Dial backup manual * Lookback timer - 15 min * Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set # 7 (Synchronous 2-wire Leased Line Normal Originate) (AT&F7) MODEM OPTIONS DCE rate - 33600 V.34 modulation * V.34 rate threshold low * V.34 asymmetric rate disabled * Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Leased line, 2-wire * Transmit level - 0 dBm * Dial backup manual * Lookback timer - 15 min * Jack type RJ11 Line current disconnect long Long space disconnect disabled * V.
Hardware Options Factory Option Set # 8 (Synchronous 2-wire Leased Line Forced Answer) (AT&F8) MODEM OPTIONS DCE rate - 33600 V.34 modulation * V.34 rate threshold low * V.34 asymmetric rate disabled * Forced answer * Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Leased line, 2-wire * Transmit level - 0 dBm* Dial backup manual * Lookback timer - 15 min * Jack type RJ11 Line current disconnect long Long space disconnect enabled V.
Hardware Options Factory Option Set #9 (Synchronous V.25bis Dialer) (AT&F9) MODEM OPTIONS DCE rate - 33600 Modulation automode V.34 rate threshold low * V.34 asymmetric rate disabled * Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Transmit clock internal Dial line Jack type RJ11 Line current disconnect long Long space disconnect disabled V.
Appendix F ASCII and EBCDIC Characters Hexadecimal equivalents of binary and decimal numbers are as follows.
Hardware Options The following table lists ASCII decimal, hexadecimal, and equivalent character values, and EBCDIC characters. The table shows only available keyboard symbols. Control keys are shown in the right column of the first table.
Hardware Options ASCII Symbol Decimal Hex EBCDIC Control Key (ESC) 27 1B C1 (CU1) [ (FS) 28 1C FS (form separator) \ (GS) 29 1D GS (group separator) ] (RS) 30 1E RS (record separator) ^ (US) 31 1F US (unit separator) DEL (SP) 32 20 DS -- ! 33 21 SS (SOS) -- " 34 22 -- -- # 35 23 -- -- ASCII Symbol Decimal Hex EBCDIC $ 36 24 CP (bypass) % 37 25 LF (line feed) & 38 26 EB (end of block) ' 39 27 EC (escape) ( 40 28 -- ) 41 29 -- * 4
Hardware Options ASCII Symbol Decimal Hex EBCDIC 7 55 37 ET (end of transmission) 8 56 38 -- 9 57 39 -- : 58 3A -- ; 59 3B C3 (CU3) < 60 3C D4 (device control 4) = 61 3D NK (no acknowledgment) > 62 3E -- ? 63 3F SB (substitute) @ 64 40 space A 65 41 -- B 66 42 -- C 67 43 -- D 68 44 -- E 69 45 -- F 70 46 -- G 71 47 -- H 72 48 -- I 73 49 ¢ (cent) J 74 4A .
Hardware Options ASCII Symbol Decimal Hex EBCDIC V 86 56 -- W 87 57 -- X 88 58 -- Y 89 59 ! (exclamation) Z 90 5A $ (dollar sign) [ 91 5B * (asterisk) \ 92 5C ) (close parenthesis) ] 93 5D ; (semicolon) ^ 94 5E ^ (caret or ¬) _ 95 5F -- ` 96 60 / (ACK1) a 97 61 -- b 98 62 -- c 99 63 -- d 100 64 -- e 101 65 -- f 102 66 -- g 103 67 -- h 104 68 -- i 105 69 -- j 106 6A | k 107 6B , l 108 6C % m 109 6D _ n 110
Hardware Options ASCII Symbol Decimal Hex EBCDIC u 117 75 -- v 118 76 -- w 119 77 -- x 120 78 -- y 121 79 ` (single quote) z 122 7A : (colon) { 123 7B # (pound) | 124 7C @ (at) } 125 7D ' (apostrophe) ~ 126 7E = (equal) DEL 127 7F " (double quote) -- 128 80 -- -- 129 81 a -- 130 82 b -- 131 83 c -- 132 84 d -- 133 85 e -- 134 86 f -- 135 87 g -- 136 88 h -- 137 89 i -- 138 8A -- -- 139 8B -- -- 140 8C ≤ (less
Hardware Options Decimal Hex EBCDIC 147 93 l 148 94 m 149 95 n 150 96 o 151 97 p 152 98 q 153 99 r 154 9A -- 155 9B -- 156 9C x 157 9D ) 158 9E ± 159 9F -- 160 A0 -- 161 A1 ~ 162 A2 s 163 A3 t 164 A4 u 165 A5 v 166 A6 w 167 A7 x 168 A8 y 169 A9 z 170 AA -- 171 AB Î 172 AC È 173 AD [ 174 AE Š 175 AF • 146 Modem 3600 F-7
Hardware Options Decimal Hex EBCDIC 176 B0 S0 (SM0) 177 B1 S1 (SM1) 178 B2 S2 (SM2) 179 B3 S3 (SM3) 180 B4 S4 (SM4) 181 B5 S5 (SM5) 182 B6 S6 (SM6) 183 B7 S7 (SM7) 184 B8 185 B9 S9 (SM9) 186 BA -- 187 BB ° 188 BC 189 BD ] (close bracket) 190 BE ≠ (not equal) 191 BF -- 192 C0 { (open brace) 193 C1 A 194 C2 B 195 C3 C 196 C4 D 197 C5 E 198 C6 F 199 C7 G 200 C8 H 201 C9 I 202 CA -- 203 CB -- 204 CC (unprintable character)
Hardware Options Decimal Hex EBCDIC 207 CF } (close bracket) 208 D0 J 209 D1 K 210 D2 L 211 D3 M 212 D4 N 213 D5 O 214 D6 P 215 D7 Q 216 D8 R 217 D9 -- 218 DA -- 219 DB -- 220 DC -- 221 DD -- 222 DE -- 223 DF -- 224 E0 \ (back slash) 225 E1 -- 226 E2 S 227 E3 T 228 E4 U 229 E5 V 230 E6 W 231 E7 X 232 E8 Y 233 E9 Z 234 EA -- 235 EB -- 236 EC (unprintable character) 237 ED -- Modem 3600 F-9
Hardware Options Decimal Hex EBCDIC 238 EE -- 239 EF -- 240 F0 0 241 F1 1 242 F2 2 243 F3 3 244 F4 4 245 F5 5 246 F6 6 247 F7 7 248 F8 8 249 F9 9 250 FA | 251 FB -- 252 FC -- 253 FD -- 254 FE -- 255 FF (trailing pad) F-10 Modem 3600
Appendix G Abbreviations and Acronyms A ABT ac ACK ACR ACU ADD ADDR ASCII AT&T B BER BERT BIL LB Bit bps BSC C C CA CC CCITT Abort Timer OR Answer Back Tone Alternating Current Acknowledgment, positive Abort Call, Retry Automatic Call Unit Address Field Address American Standard Code for Information Interchange (7 level) American Telephone and Telegraph Bit Error Rate Bit-Error-Rate-Test (set) Bilateral Loopback Binary Digit Bits Per Second Binary Synchronous Communications Celsius Circuit Assurance Carri
Abbreviations and Acronyms L LAL LAPD EON EOT End of Number End of Text OR End of Transmission EPROM Erasable Programmable Read Only Memory ER Error ESC Escape Key ETB End of Block ETC External Transmit Clock ETX End of Text EXT External F FB FCC Fallback Federal Communications Commission FF Form Feed FGND Frame Ground FL Flag FLL Fixed loss loop FM Frequency Modulation Fox Test message (The quick message brown fox jumps over the lazy dog) 0123456789 FSK Frequency-Shift Keying H HDLC Hz High Level Data
Abbreviations and Acronyms PRI PRO PROG, PR PROM PSK PSTN PWI Q QAM R RAD RAL RAM RC RCD RCV, RCVR RD RDL RI RL RLO Primary Program Option Programmable Programmable Read Only Memory Phase Shift Keying Public Service Telephone Network Power Indication Quadrature Amplitude Modulation Random Access Method Remote Analog Loopback Random Access Memory Receive Clock Receiver-Carrier Detector Receiver Receive Data Remote Digital Loopback Ring Indication Remote Loopback Request List of Stored Options RLSD Receive
Appendix H Flash Upgrade Upgrade your modem easily using this flash update procedure. What You Need • A data communications software package that supports a 57.6 kbps DTE rate and “X modem CRC” protocol • Flash upgrade file Look for modem software upgrades on the Web at this address: http://www.mot.com/MIMS/ISG/Service_Support/software.html Steps For Downloading IMPORTANT: Do not abort this process, once started! 1) Activate your data communications software package, and set up your DTE for 57.6 kbps.
Flash Upgrade 5) From your terminal software package, send the “flash upgrade file” to the modem. You know the download is working because the LCD displays: FLASH UPGRADE IN PROGRESS Note Be sure you use the “X modem CRC” protocol. The modem automatically resets after the upgrade is complete. The process can take several minutes. One of two messages returns. DOWNLOAD OK indicates a successful upgrade. DOWNLOAD ERROR indicates a problem with the download.
Service and Support Introduction U.S.A. customers who have questions about products or services should refer to the following sections. Non-U.S.A. customers should contact their local distributor. Questions About Product Shipment or Technical Assistance Please call Black Box at 724-746-5500. To Access the Black Box Internet Web Pages Additional company and product information can be found on our Internet Web site: http://www.blackbox.com/ Sales-Related Issues Call Black Box at 724-746-5500.
Index Numerals 2-wire operation 5-34 4-wire operation 5-33 A Analog loopback 10-8 Answer / originate 10-7 Answer mode switching to after dialing 5-15 Answering a call 3-3 ASCII character table F-1 Async DTR dialer DTR async dialer 10-11 Async/sync mode s-register settings 10-11 AT command answer 5-17 AT command set disable 5-33 S-register enable/disabling 10-12 AT command statement 5-3 AT commands $$ 8-11 $C=x, - 8-4 $C=x, y 8-4 $Cn=m 8-8 $D 8-7 $D=x 8-4 $D? 8-4 $DR 8-4 $E=x 8-4 $E? 8-4, 8-10 $EH=pw 8-7 $F
Index (continued) A (Continued) AT commands (Continued) $W? 8-9 %A 10-20 %An 6-6 %B 5-28, 10-22 %C 6-12, 10-17 %D 6-4, 10-20 %E 5-30, 10-19 %L 5-29, 10-27 %P 5-42 %R 5-30, 10-15 %T 5-43 %V 5-31 &D 5-20, 10-9 &F 5-39 &G 5-25, 10-10 &L 5-36, 10-11, 10-13 &M 5-25, 10-11, 10-12 &P 5-26, 10-10 &R 5-21, 10-9, 10-24 &S 5-20, 10-9 &T 5-43, 10-10 &V 5-40 &W 5-38 &X 5-27, 10-11 &Y 5-38 &Z 5-40 *CNx,n 5-40 *DA 5-32 *DB 5-36, 10-13 *DG 10-13 *FB 5-22, 10-12 *FT 5-32, 10-12 *IC 5-32 *LA 10-13 *LC 5-32, 10-13 *MM 5-27 *N
Index (continued) A (Continued) AT commands (Continued) *TLn 5-36, 10-14, 10-15 +++ 5-22 +FCLASS 9-4 ` 10-16 A 5-17, 6-11, 10-20 A/ 5-4 AT 5-3 B 6-11, 10-25 C 6-11, 10-19 categories 5-1 D 5-13 E 5-22, 10-7 F 5-23 G 6-8, 10-16 H 5-23, 10-7 I 5-24 J 6-5, 10-24 K 10-18 Kn 6-9 L 5-24, 10-10 M 5-24, 6-5, 10-10, 10-23 N 6-6, 10-23 O 5-25, 10-19 P 10-7 Q 5-6, 6-7, 10-7 R 5-21, 10-19 response commands 5-5 T 6-10, 10-7, 10-17 V 5-6, 10-7, 10-19 W 5-6 X 6-8, 10-10, 10-16 Y 5-25, 10-9 Z 5-39 Attention code (AT) 5-3 Au
Index (continued) A (Continued) Auto-reliable fallback character 6-6 Auto-reliable mode 6-2 B BER s-register settings 10-15 Binary File Transfer (BFT) standard 9-10 Block size maximum reliable 6-11 s-register settings controlling size 10-20 Break control 6-9 Buffer disconnect delay 6-4 set auto-reliable 6-11 C Call termination conditions 3-4 Caller ID 5-17 Carrier detect level A-3 CCITT 9-1, 9-3 Clock external transmit frequency A-2 internal transmit frequency A-2 s-register settings 10-11 synchronous tra
Index (continued) D Data compression 6-2 V.
Index (continued) D (Continued) DTR control Data terminal ready (DTR) control 10-9 DTR dialer s-register settings 10-11 DTR in autoanswer 5-17 E Echo 10-7 local character 5-22 online character 5-23 EIA-578 9-1, 9-3 Environmental conditions A-1 Error control 6-1 Escape sequence Changing from data mode to command mode 5-22 F Factory option set loading 5-39 Factory option sets set #1 E-28 Fallback character 6-6 FAULT ISOLATION PROCEDURE D-1 Fax commands class1 quick reference E-15 D 11-5, 11-6, 11-7, 11-10,
Index (continued) H HDLC data framing 9-3 I IC requirements vi Inactivity timer 6-10 Installation 2-1 Internet web pages 1 J Jack DIAL pin functions B-1 TELSET/LEASED LINE pin functions B-1 L LAPM 6-1 LCD menu 4-2 Leased line s-register settings 10-13 Leased lines 2-8 Line current disconnect s-register settings 10-13 Line equalization A-3 Line type s-register settings 10-11 Link layer protocols A-3 Local analog loopback, DTE commanded s-register settings 10-13 Local character echo s-register settings 10-
Index (continued) O Off hook command description 5-23 Offline command mode 5-2 Online command mode 5-2 Operating mode selection 6-6 Operating mode status s-registers settings 10-23 Operation with security local 8-3 Remote 8-2 Option Sets E-28 Options retaining/restoring 5-41 Options retained / restored 10-12 P Parity s-register settings 10-19 Password 8-3, 8-6 change 8-4 default 8-7 delete 8-4 set 8-4, 8-8 Pause 5-14, 10-5, 10-6 Phone Jack Descriptions B-1 Phone jack pin descriptions B-1 Power AC connectio
Index (continued) R Rate renegotiation 5-31 Reliable mode 6-1 Remote configuration security 5-42 Remote digital loop request s-register settings 10-10 Remote digital loopback 10-8 Remote digital loopback, DTE commanded s-register settings 10-13 Request List of Stored Options 11-13 Response messages 5-6, 10-7, 10-10 Restore Factory Settings 11-12 Returning the modem 12-2 Revision Level 5-31 RI LED -- ring indicator s-register settings 10-19 Ring indicator command description 5-21 RTS/CTS delay A-3 S Save Cu
Index (continued) S (Continued) Speaker s-register settings 10-10 Specifications A-1 S-register autoanswer 10-4 hexadecimal/decimal values 10-2 S-register commands Sn.
Index (continued) S (Continued) S-registers (Continued) S54 10-16 S56 10-17 S57 10-17 S58 10-17 S59 10-18 S6 10-5 S60 10-19 S61 10-19 S62 10-20 S63 10-20 S64 10-20 S67 10-21 S69 10-22 S7 10-5 S70 10-23 S71 10-23 S72 10-24 S73 10-24 S74 10-24 S75 10-24 S76 10-25 S77 10-25 S78 10-25 S79 10-25 S8 10-6 S80 10-26 S81 10-27 S88 10-28 S9 10-6 S91 10-29 Straps ground option C-4 Superuser See Security 8-11 Sync clock selection 10-11 T Table 5-1 5-9 Technical support 12-2 Teephone line specifications A-1 Telco conne
Index (continued) T (Continued) Telephone number storing 5-40 Temperature A-1 Test, system 10-8 Testing A-3 Tests 7-1 Timer inactivity 6-10 Transmit break/set break length 6-11 Transmit level dial line 5-33 leased line 5-36 transmit output level A-2 V V.25 ASCII / EBCDIC s-register settings 10-12 V.25 bis response messages E-26 V.25 bis auto dialer commands quick reference E-24 V.25 bis Autodialer 11-7, 11-8, 11-9, 11-14 V.25 bis autodialer commands quick reference E-26 V.
