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CXR V.34bis series Operation And Installation Manual

Standalone & rackmount
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V.34bis Series
Standalone & Rackmount
Modems
Operation and Installation Manual
This publication contains information that is the property of CXR Telcom
Corporation. No part of this publication may be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine
readable form without prior written consent of CXR Telcom Corporation.
Information in this publication is subject to change without notice. CXR
Telcom assumes no responsibility for errors or omissions in this publication
or for the use of this material.
96-51000-280 Rev. E
S
© 2001 CXR Telcom Corporation. All rights reserved.
9001
I

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  • Page 1 Standalone & Rackmount Modems Operation and Installation Manual This publication contains information that is the property of CXR Telcom Corporation. No part of this publication may be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior written consent of CXR Telcom Corporation.
  • Page 2 CXR Telcom products, contact: CXR Telcom Corpor ation 47233 Fremont Boulevard remont, CA 945338-6502 510) 657-8810 • (510) 657-1158 • E-Mail: marketing@cxr.com The V.34bis Series Standalone & Rackmount Modems are products of CXR elcom Corporation. Printed in the USA.

  • Page 3: Table Of Contents

    Selecting a Factory Configuration ...........21 Selecting a Configuration By AT Command........22 Special Reset ................22 Factory Default Configurations ............26 Originate A Call.................38 Answer A Call ................38 Disconnecting ................39 Busy-Out..................40 Password Security ..............43 Pass-Through Access ..............45 Answer back................45 V.34bis Series Standalone & Rackmount Modems...
  • Page 4 APPENDIX A ................133 Product-line Warranty ..............133 APPENDIX B ................135 FCC & Canadian Regulation Info ...........135 APPENDIX C ................138 Specifications ................138 RS-232 Pin Assignments ..............142 APPENDIX D ................142 INDEX ..................144 V.34bis Series Standalone & Rackmount Modems...

  • Page 5: Introduction

    Introduction Thank you for purchasing a CXR Anderson Jacobson high-speed modem with fax capabilities. You have purchased one of the finest modems available. Depending upon the model you have chosen, your modem will provide you with data communication rates up to 33,600 bps. Group III fax communications at 9600 bps is also a feature of your new AJ modem.
  • Page 6 This chapter covers testing and diagnostic steps used to help isolate communication problems. Appendix A - Product Line Warranty Appendix B - FCC and Canadian Regulations Appendix C - Specifications Appendix D - RS-232 Pin Assignments Index V.34bis Series Standalone & Rackmount Modems...

  • Page 7: Product Description

    Group III, Class 1 and 2 Fax Transmission at 9600 bps w/fallback to 7200 or 4800 bps • Expanded "AT" Commands • V.42 (LAPM) Error Correction and V.42bis Data Compression • MNP Class 4 Error Correction/MNP Class 5 Data Compression • Dial-Up Operation V.34bis Series Standalone & Rackmount Modems...

  • Page 8: Standard Features

    Each stored telephone number can have a different user defined modem configuration • Dialing from stored numbers by: ◊ location number ◊ link to another number ◊ DTR or front panel switching ◊ name (mnemonic) V.34bis Series Standalone & Rackmount Modems...

  • Page 9: Security Features

    It provides regulated + 5 VDC through a single cable that plugs into the rear of the modem. The standard module is plugged into a dedicated wall receptacle or high quality power strip that must provide a nominal 117 VAC at 60Hz. V.34bis Series Standalone & Rackmount Modems...
  • Page 10 Introduction V.34bis Series Standalone & Rackmount Modems...

  • Page 11: Installation And Connection

    Check your packing list to verify you have received all your equipment. In case of a shortage in any of the items for your particular DSU, please contact your local distributor or CXR AJ Customer Service at (800) 537-5762 .

  • Page 12: Installation Requirements

    A telephone line jack - either RJ-11 or RJ-45 √ Operator's Manual √ RS-232 shielded cable with a 25 pin D-type connector for the DTE-to- modem √ AJ rackmount chassis or standalone case Location Factors V.34bis Series Standalone & Rackmount Modems...

  • Page 13: Telephone Line Access

    The schedule for the planned telephone line installation may become a critical part of completing the installation in a timely manner. System Start-Up V.34bis Series Standalone & Rackmount Modems...
  • Page 14 As shipped, the User Configuration 0 is the same as the dial-up Factory Configuration 0. V.34bis Series Standalone & Rackmount Modems...

  • Page 15: External Dial-Up Modems

    Technical Support. COM Port Most PCs and PC-compatibles have two serial ports usually COM1 and COM2. Some also have COM3 and COM4. Make sure your modem software is set to the correct COM Port. V.34bis Series Standalone & Rackmount Modems...
  • Page 16 Figure 2.2: External Modem Switches and Jumpers Simple With Telephone & Answering Machine Modem Wall Jack Answering Machine With Telephone Modem Wall Jack Modem Wall Jack Figure 2.3: Connecting the Wiring for a Dial-Up External Modem V.34bis Series Standalone & Rackmount Modems...

  • Page 17: Installing The Modem

    • TEL LINE Used for the normal switched network connections to the telephone line from the wall. Supports MI/MIC operation for use with PBX systems, automatic call units and telephone sets with an exclusion key. V.34bis Series Standalone & Rackmount Modems...

  • Page 18: Rackmount Modem Card

    5-red 2-orange 6-black 3-yellow 7-blue 4-green 8-brown DIAL 1 connects to the telephone set. DIAL 2 connects to the telephone line from the wall. LL connects to the leased line cable from the Telco. V.34bis Series Standalone & Rackmount Modems...
  • Page 19 Installation Figure 2.5: Rackmount Switches and Jumpers Standard Rackmount Assembly Shown in Factory Default Position Note: Short J10 to disable the "AT" command function V.34bis Series Standalone & Rackmount Modems...

  • Page 20: Switch Settings

    For Unattended Automatic Dial Back-Up (UADBU) command input to pin Set S2-2 ON. For LAL command input from pin 25: Set S2-4 & S2-5 OFF then set S2-3 ON. For Test indication output to pin 25: Set S2-3 OFF then set S2-4 ON. V.34bis Series Standalone & Rackmount Modems...

  • Page 21: Power On Test

    Rackmount Modems With power applied to the rack, insert a module card into the rack. If the modem passes the power-up self-test, three short beeps will be heard. Failure is indicated by four lower-pitched tones. V.34bis Series Standalone & Rackmount Modems...
  • Page 22 Installation V.34bis Series Standalone & Rackmount Modems...

  • Page 23: Modes And Configurations

    The modem queues commands in a 40-character command line. command line beginning with AT can have several commands. A separator is not required between the commands. The command line format is: AT command (parameter)... (enter) V.34bis Series Standalone & Rackmount Modems...
  • Page 24 Word/Digit ATVn command. The most common result codes are: WORD CODE DIGIT CODE MEANING Command line executed without error. CONNECT Connection established. RING Ring signal detected on the line. V.34bis Series Standalone & Rackmount Modems...

  • Page 25: Selecting A Factory Configuration

    Configuration 4". The desired differences can then be entered and stored as user defined configurations. The factory configurations are defined in Table 3.1 by using the DIAL-UP, AT&F0, as the reference and the basic configuration. V.34bis Series Standalone & Rackmount Modems...

  • Page 26: Selecting A Configuration By At Command

    When these modems are used for international calls, there are a few settings that should be changed. To receive a modem call from some European countries, the guard tone must be turned on. England requires V.34bis Series Standalone & Rackmount Modems...
  • Page 27 Some software packages have a limit for the modem connect time, e.g. Crosstalk default is 30 seconds. Usually there is some way to increase the default time. V.34bis Series Standalone & Rackmount Modems...
  • Page 28 Dialing & Answering and On-line Format/Data Rate and Leased Line Flow Control and Break Handling Error Correction and Action Commands Security Information Action Commands Connect Status Error Correction Status Test Commands Leased Line Statistics Dial Line Statistics V.34bis Series Standalone & Rackmount Modems...
  • Page 29 S55=0 RETRAIN TIMER S31=40 ANY CHAR %B1 AUTO FALL BACK TRN&ONL ABORT ABORT TIMER S7=60 SPEED CHANGE DIAL XMIT LVL -10dBm %XD5 RESP RDL RQST SPEAKER CTRL M1 GUARD TIME S12=50 VOLUME L2 ESC CHAR S2=43 V.34bis Series Standalone & Rackmount Modems...

  • Page 30: Factory Default Configurations

    DTE BUFF SIZE 1024 &B1 CMD AT BRK GEN LOC FC *LG2 PASS XMIT BRK IMMEDIA *XK1 GEN LOC XON S67=17 PASS RECV BRK IMMEDIA *RK1 GEN LOC XOFF S68=19 CLR XBF XMIT *KA0 V.34bis Series Standalone & Rackmount Modems...
  • Page 31 *RG0 RECV BRK TIME S47=0 GEN REM XON S62=17 GEN REM XOFF S63=19 RESP REM FC NONE *RR0 RESP REM XON S69=17 RESP REM XOFF S70=19 FILTER RECV FC *RF0 Type <enter> to continue: V.34bis Series Standalone & Rackmount Modems...
  • Page 32 OPERATOR: %PO:ssssssssssss:ssssssssssss SECURITY OPTIONS "AT" COMMANDS %SC0 NON-VOL WRITE %SW0 ANSWER %SA0 DOWN LINE LOAD %SD0 RACK CONTROL %SS0 PASSWORD OPTIONS PROMPTS %SP1 ENTRY ATTEMPTS 1 TRY %ST0 CASE SENSITIVE %SL0 AFTER CALLBACK %SB0 V.34bis Series Standalone & Rackmount Modems...
  • Page 33 Type <enter> to continue: FACTORY CONFIGURATION 0 PAGE 8 CONNECT STATUS OFF LINE CONNECT TIME 17:41:19 LAST DIAL 555-1234 Type <enter> to continue: NOTE: When modems are on-line the display will resemble this format: ON LINE ORIGINATE V.34bis Series Standalone & Rackmount Modems...
  • Page 34 LAL WITH SELF TEST &T8 SEND DTMF TONE &T2n LOCAL DIGITAL LOOP &T3 REMOTE DIGITAL LOOP &T6 RDL WITH SELF TEST &T7 LAPM RDL WITH SELF &T9 TEST STOP TEST &T0 TEST TIMER S18=0 LAL HOOK CTRL V.34bis Series Standalone & Rackmount Modems...
  • Page 35 Table 3.1: Factory Default Configurations - Continued Factory Configuration Setting # 1 Default Factory Configuration Setting # 1 4-W LEASED LINE ORIGINATE MODE, AT&F1 Same as AT&F0 except: 1) COMMAND ECHO 2) QUIET 3) CONNECT MSG AT XMIT OK V.34bis Series Standalone & Rackmount Modems...
  • Page 36 11) DATA BITS 12) PARITY EVEN 13) LEASED LINE 4-WIRE &L2 14) LEASED LN MODE ANSWER 15) DTE BUFF SIZE &B0 16) GEN LOC FC NONE *LG0 17) CORRECTED MODE EXCLUSIV 18) DATA COMPRESS V.34bis Series Standalone & Rackmount Modems...
  • Page 37 14) AUTO DIAL BKUP 15) DIAL BKUP ALRM 16) LEASE LOOKBACK 17) LOOKBACK TIMER S56=1 18) DTE BUFF SIZE &B0 19) GEN LOC FC NONE *LG0 20) CORRECTED MODE EXCLUSIV 21) DATA COMPRESS 22) TEST TIMER S18=60 V.34bis Series Standalone & Rackmount Modems...
  • Page 38 15) LEASED LN MODE ANSWER 16) AUTO DIAL BKUP 17) LEASE LOOKBACK 18) DTE BUFF SIZE &B0 19) GEN LOC FC NONE *LG0 20) CORRECTED MODE EXCLUSIV 21) DATA COMPRESS 22) TEST TIMER S18=60 V.34bis Series Standalone & Rackmount Modems...
  • Page 39 V.25bis BISYNC DIALER AT&F4 Same as AT&F0 except: 1) COMMAND ECHO 2) CARRIER DTR-CARR &C3 3) DIALER TYPE V25 BISY 4) AUTO BAUD 5) ASYNC/SYNC SYNC &M1 6) GEN LOC FC NONE *LG0 7) CORRECTED MODE V.34bis Series Standalone & Rackmount Modems...
  • Page 40 Modes and Configurations V.34bis Series Standalone & Rackmount Modems...
  • Page 41 TYPE: AT <CR> Modem responds: OK If the modem does not respond, the other pins mentioned above may require connection and/or be forced on using the dip switches. The RS-232 cable may be mis-wired. V.34bis Series Standalone & Rackmount Modems...

  • Page 42: Originate A Call

    A series of harsh sounds will be heard as the modems "handshake" and "train". The speaker will turn off and the CD LED will illuminate on the modem front panel. The modem is now connected with the far-end modem. V.34bis Series Standalone & Rackmount Modems...

  • Page 43: Disconnecting

    (depending on the AT%In command) after the number of minutes specified in S-Register 32. Setting S-Register 32 to 0 disables the online inactivity timer (asynchronous mode only). > Turn off or unplug the modem from the wall connection. V.34bis Series Standalone & Rackmount Modems...

  • Page 44: Busy-Out

    2) When a modem busy-out condition occurs the DTR, DSR, CD, CTS, SQ, ERR, TST and speed LEDs will flash continuously. Non-flashing LEDs will indicate the type of failure that has occurred: Ring without answer Failed power-up self-test Failed answer handshake V.34bis Series Standalone & Rackmount Modems...
  • Page 45 This number can range from 0 to 9. In the above example, suppose a call is made to Tom by typing "ATDS3". The configuration stored in location 1 will be loaded before dialing the phone number. V.34bis Series Standalone & Rackmount Modems...
  • Page 46 In location 0 (AT&Z0), the "+" character at the end of the phone number string indicates that more digits are to be added to the phone number. The LINK value of 1 is used to extend the phone V.34bis Series Standalone & Rackmount Modems...

  • Page 47: Password Security

    The operator defines the 2 passwords using the "%PO" and "%PS" commands described above. Suppose that the following commands are entered: AT%PO:USER:USER AT%PS:SUPER:SUPER AT%SC1 V.34bis Series Standalone & Rackmount Modems...
  • Page 48 Passwords Provide These Controls: • Allows access to AT dialer • Dialing from memory, viewing stored numbers, changing stored numbers • Changing answerback, operator password, supervisor password • Allows down-line loading V.34bis Series Standalone & Rackmount Modems...

  • Page 49: Pass-Through Access

    12 characters on both the calling and answering modems. When storing the answer back code it must be entered twice to ensure that it is saved correctly. To disable answer back security: Type AT&A<CR> V.34bis Series Standalone & Rackmount Modems...
  • Page 50 The prompt "Password:" can be set so it will not be sent to the remote modem by entering the command %SP0. The modem password can be set to select the upper and lower case by entering the command %SL1. V.34bis Series Standalone & Rackmount Modems...
  • Page 51 Pass Through. The modem should prompt for name and password. If a correct name/password combination is entered then the connection is allowed to pass through. AT%SA2 enable answer security AT%SP1 prompts turned on AT%ST0 allow 1 attempt AT%SL0 case sensitivity disabled AT&Z0:Joe:XXYZZ::::N store Joe V.34bis Series Standalone & Rackmount Modems...
  • Page 52 Modes and Configurations AT&Z0:Tom:XXZYY::::N store Tom V.34bis Series Standalone & Rackmount Modems...
  • Page 53 If a correct password is entered then the modem should call back the user. AT%SA1 enable answer security AT%SP0 prompts turned off AT%ST0 allow 1 attempt AT%SL1 case sensitivity enabled AT&Z0:Joe:XXYZZ:555-1111:::C store Joe AT&Z0:Tom:XXZYY:555-2222:::C store Tom V.34bis Series Standalone & Rackmount Modems...
  • Page 54 AT%WD1: Originate only inside the window on weekdays AT%U1: Answer enabled ATS74=0S75=0: Set window for the weekend AT%WE1: Originate is disabled during the weekend AT%O0: Set to Auto Answer AT&L3: Unattended Automatic Dial Back-Up only AT&D0: Force DTR on V.34bis Series Standalone & Rackmount Modems...
  • Page 55 "load saved configuration" operation is accomplished at a call disconnect. When the time expires the modem will not auto answer a call until it is reset. V.34bis Series Standalone & Rackmount Modems...

  • Page 56: Remote Configuration

    S38 of the local modem. If these characters are not set different then the modems will both become locked in a down-line load condition. V.34bis Series Standalone & Rackmount Modems...

  • Page 57: Error Correction And Data Compression

    LAPM connection and the fallback to MNP will be disabled. When an originating modem receives the appropriate carrier signal and then determines it is not a LAPM link, it then sends an MNP frame which V.34bis Series Standalone & Rackmount Modems...
  • Page 58 If the DTE responds to XON/XOFF characters, use the command: AT*LG1*RF1 2) Enable the LAPM/MNP operation enter: AT*Mn The following chart summarizes the functions provided by setting of the AT*Mn command: Command LAPM/MNP Active Mode AT*M0 Direct mode AT*M1 Normal AT*M2 maybe Automatic V.34bis Series Standalone & Rackmount Modems...
  • Page 59 AT*E0. The AT&S9 Status Display To review the Error Correction Status Display discussed below, enter the AT&S9 command. Both a LAPM and a MNP Class 5 example and details are provided below. V.34bis Series Standalone & Rackmount Modems...
  • Page 60 "Seconds" shows the number of seconds since the communications link was formed. In the above example, the modems were linked for 53113 seconds, or nearly 15 hours, when the status display was obtained. V.34bis Series Standalone & Rackmount Modems...
  • Page 61 The modem sends a REJ frame when an error is detected that requires the remote modem to re-send a data frame. Attn Frames (LAPM) The line labeled "Attn Frames" shows the number of LAPM break signals sent and received. V.34bis Series Standalone & Rackmount Modems...
  • Page 62 "Seconds" shows the number of seconds since the communications link was formed. In the above example, the modems were linked for 53113 seconds, or nearly 15 hours, when the status display was obtained. V.34bis Series Standalone & Rackmount Modems...
  • Page 63 Errors The line labeled "Errors'" shows the number of MNP data errors sent and received. Attn Frames The line labeled "Attn Frames" shows the number of MNP break signals sent and received. V.34bis Series Standalone & Rackmount Modems...
  • Page 64 Similarly, "MNP Class 5" compression is another enhancement that can be applied to any of the classes 1 through 3 with or without the Class 4 enhancements. If the MNP link is using compression, then "Class 5" will appear. V.34bis Series Standalone & Rackmount Modems...
  • Page 65 Modes and Configurations V.34bis Series Standalone & Rackmount Modems...

  • Page 66: Front Panel Configurations

    Holding DL/DIS for more than 4 seconds will initiate a hardware reset. If the switch is still pressed after the beeps, the modem will enter configuration mode. The front panel LEDs indicate which configuration V.34bis Series Standalone & Rackmount Modems...
  • Page 67 Leased Line Operation the user can select as given on Table 4.2 (alternate AT commands are also shown). V.34bis Series Standalone & Rackmount Modems...
  • Page 68 (after the beeps), the LEDs will indicate which configuration is loaded for 2 seconds. Note: If the NVRAM (non-volatile RAM) is bad, holding the DL/DIS while resetting the power will clear the NVRAM and load the modem with the dial up factory default. V.34bis Series Standalone & Rackmount Modems...
  • Page 69 High Speed - Lights to indicate the modem operating speed. Table 4.2 - LED Indicators and Functions (External) Modem Speed Blink Rate V.34 33,600 STEADY 31,200 28,800 26,400 24,000 21,600 7,200 19,200 16,800 14,400 12,000 9,600 4,800 2,400 1,200 V.34bis Series Standalone & Rackmount Modems...

  • Page 70: Manual Dialing

    Dial the telephone number of the modem to be called and listen for the high pitched tone from the modem answering your call. Momentar ily press the DIAL switch, then hang up the telephone handset and proceed with the data transmission. V.34bis Series Standalone & Rackmount Modems...

  • Page 71: Rackmount Front Panel Operation

    (same as the power reset). Immediately after the power-up test and the three beeps, the appropriate LED will indicate for 2 seconds the configuration that is loaded. V.34bis Series Standalone & Rackmount Modems...
  • Page 72 When the modem is in the Configuration Select Mode this switch toggles the modem between the User and the Factory Configurations. NOTE: When in dial backup operation pressing this switch with turn off the beeper. V.34bis Series Standalone & Rackmount Modems...
  • Page 73 HI-f,LO-f and DTR &F0 4-W Leased Line HI-f,LO-f and DSR &F1 Originate 4-W Leased Line Answer HI-f,LO-f and CD &F2 V.25bis HDL C/SDLC HI-f,LO-f and CTS &F3 V.25bis Bisync HI-f,LO-f and SQ &F4 (f = flashing) V.34bis Series Standalone & Rackmount Modems...
  • Page 74 ERR LED will flash when an error is detected. Test - Lights when the modem is in a test mode from a local or a remote input. Continuous flashing indicates the modem V.34bis Series Standalone & Rackmount Modems...
  • Page 75 During normal modem operation, the LEDs should light from left to right. That is, DTR should light first, indicating that the local DTE is online; followed by DSR, indicating a ring signal and answer tone; and then CD, indicating presence of the data carrier. V.34bis Series Standalone & Rackmount Modems...
  • Page 76 Dial the telephone number of the modem to be called and listen for the high pitched tone from the modem answering your call. Momentarily press the DIAL switch, then hang up the telephone handset and proceed with the data transmission. V.34bis Series Standalone & Rackmount Modems...

  • Page 77: Leased Line

    If the modem does not respond, t he other pins mentioned above may require connection and/or be forced on using the dip switches as described in Chapter 2. The RS-232 cable may be mis-wired. V.34bis Series Standalone & Rackmount Modems...

  • Page 78: Originating Modem

    30 seconds. If the leased line fails, the modems will try to retrain. If dial back up is not enabled, the modem will wait for the leased line to be restored and then start training to reconnect. V.34bis Series Standalone & Rackmount Modems...
  • Page 79 14 of the RS-232 interface. A logical HIGH on pin 14 will force the modem con nected to the leased line to make a dial back up ll. (AT% U0 m ust be entered for this to work.) V.34bis Series Standalone & Rackmount Modems...
  • Page 80 Modem stays connected to dial line at end of window n = 1: Modem will disconnect from dial line at end of window AT%Ln n = 0: Leased line lookback disabled n = 1: Leased line lookback enabled Table 5.1: UADBU Commands V.34bis Series Standalone & Rackmount Modems...

  • Page 81: Leased Line Operation

    Set window for weekend. AT%WE1: Dial back up is enabled inside the window on weekend, and since the duration of the window is zero, UADBU is disabled during weekend. Note: Optional on Leased Line only. V.34bis Series Standalone & Rackmount Modems...
  • Page 82 15 seconds. If the training is not successful, both modems will switch back to the dial line and re-establish the connection. V.34bis Series Standalone & Rackmount Modems...
  • Page 83 25 of the EIA connector will toggle from OFF to ON then OFF with an terval of 500 milli-seconds. For this indication the dip switch settings must include S2-3 in the OFF position an d S2-4 in the ON position. V.34bis Series Standalone & Rackmount Modems...

  • Page 84: Manual Dial Back-Up

    The format of the command is: Thh:mm: ss:mm-dd Note: The Clock Calendar o ption is available for the Leased Line models, but is not availabl e for the Dial-Up models. V.34bis Series Standalone & Rackmount Modems...

  • Page 85: At And V.25Bis Command Sets

    Originate Call in Answer Mode Dial Stored Number Touchtone Dial &Gn Guard Tone Selection &Pn Pulse Dial Make/Break Ratio Select &Qn Signal Quality Redial &Zn Store Phone Number Adaptive Dial Any Character Abort Dialer Selection V.34bis Series Standalone & Rackmount Modems...
  • Page 86 LAPM/MNP Error Alarm Operating Modes Originate LAPM/MNP Link Maximum Packet Size Reset Error Statistics Select Protocol - V.42(LAPM) or MNP Accept LAPM/MNP Link Switch to LAPM/MNP Link Switch to Normal Link from MNP Flow Control V.34bis Series Standalone & Rackmount Modems...
  • Page 87 Long Space Disconnect Auto Fall Back V.22 bis and V.21/103 "HUNT " Operations Inactivity Ti Loss of Carrier Redial Automatic Retrain %XDn Dial Line Transmit Level Trellis Encoding Transmit Equalizer Online Speed Change Security V.34bis Series Standalone & Rackmount Modems...
  • Page 88 Read "S"-Register Result Codes as Word or Digit Extended or Basic Result Code Set &N Display Phone Number List &Sn Status Display Connect Message Output Control Modem/DTE Speed in Connect Message Extended Result Codes V.34bis Series Standalone & Rackmount Modems...
  • Page 89 AT command was issued. Cn Transmit Carrier Control FORMAT: ATCn Turns transmit carrier off for test purposes. n = 0 - Carrier transmit OFF n = 1 - (Default) Carrier transmit ON Dn Dial Command FORMAT: ATD%n V.34bis Series Standalone & Rackmount Modems...
  • Page 90 When telephone numbers are dialed from memory the redials as defined by register S55 will proceed. The default is 0. Command Echo FORMAT: ATEn n = 0 - Echo off n = 1 - (Default) Echo on Hook Switch Control FORMAT: ATHn V.34bis Series Standalone & Rackmount Modems...
  • Page 91 = 2 - Fallback to next lower speed n = 3 - Fall forward to next higher speed Note: Option 2 and 3 will function only if on-line speed change has be enabled (AT@F1). ulse Dial FORMAT: ATDPn V.34bis Series Standalone & Rackmount Modems...
  • Page 92 The S-registers are registers that hold modem configuration parameters. Dial Stored Number FORMAT: ATDSn Touchtone Dial FORMAT: ATDTsss-sss-ssss Note: When the modem is powered on, it is set for touchtone dialing. Result Codes as Word/Digits FORMAT: ATVn V.34bis Series Standalone & Rackmount Modems...
  • Page 93 33,600 bp s. If *Nn is se t to n=1 the indicated speed is the DTE dat a rate. A listing o f RESULT C ODES follows with n definitions for the ATXn command. V.34bis Series Standalone & Rackmount Modems...
  • Page 94 CFI RT 33 BLACKLIST FULL CFI BF 34 CONNECT 1200T/75R CNX 1200T/75R 35 CONNECT 75T/1200R CNX 75T/1200R 36 FLASH FLASH 37 CONNECT 21600 CNX 21600 38 CONNECT 25400 CNX 26400 40 CONNECT 300/MNP CNX 300/MNP V.34bis Series Standalone & Rackmount Modems...
  • Page 95 75 CONNECT 9600/V42BIS CNX 9600/V42BIS 76 CONNECT 12000/V42BIS CNX 12000/V42BIS 77 CONNECT 14400/V42BIS CNX 14400/V42BIS 78 CONNECT 19200/V42BIS CNX 19200/V42BIS 79 CONNECT 38400/V42BIS CNX 38400/V42BIS 80 CONNECT 57600/MNP CNX 57600/MNP 81 CONNECT 115200/MNP CNX 115200/MNP V.34bis Series Standalone & Rackmount Modems...
  • Page 96 107 CONNECT 26400/V42B CNX 26400/V42BIS 110 CONNECT 31200/LAPM CNX 31200/LAPM 111 CONNECT 31200/V42BIS CNX 31200/V42BIS 112 CONNECT 33600/MNP CNX 33600/MNP 113 CONNECT 33600/MNP5 CNX 33600/MNP5 114 CONNECT 33600/LAPM CNX 33600/LAPM 115 CONNECT 33600/V42BIS CNX 33600/V42BIS V.34bis Series Standalone & Rackmount Modems...
  • Page 97 CD turns on when modem can pass full duplex data. Note: If n=2 or 4 then CD will not turn on until after all security processing and MNP negotiations have been completed. V.34bis Series Standalone & Rackmount Modems...
  • Page 98 = 1 - Redial if signal quality ≤ 8 n = 2 - Redial if signal quality ≤ 7 The number of redials, 0 through 8, is determined by the setting of S- register S55 (default S55=0). V.34bis Series Standalone & Rackmount Modems...
  • Page 99 Action commands. n = 8 - Connect status display. n = 9 - LAPM/MNP error correction statistics. n =10 - Test commands. n =11 - Leased Line Statistics. n =12 - Dial Line Statistics. V.34bis Series Standalone & Rackmount Modems...
  • Page 100 Or for a LAPM error correction connection the last line is: LAPM, WINDOW SIZE 15 (TRANSMIT), 15 (RECEIVE) Or for a V.42 bis compression connection the last line is: V.42 BIS: BOTH DIRECTIONS, DICTIONARY SIZE 1024, STRING LENGTH 32 V.34bis Series Standalone & Rackmount Modems...
  • Page 101 = 1 - Signal timing is provided by the DTE on pin 24 on RS-232. n = 2 - Signal timing is provided by the remote modem on pin 15 of the RS-232 connector. V.34bis Series Standalone & Rackmount Modems...
  • Page 102 ) (-45 Series only) n = 0 - (Default) Disabled n = 1 - Enabled %ESn EIA Speed Control FORMAT: AT%ESn (-45 Series only) n = 0 - (Default) Disabled n = 1 - Enabled V.34bis Series Standalone & Rackmount Modems...
  • Page 103 For example: AT%PO:MAGIC:MAGIC would define the operator password to be the word "MAGIC". command: AT%PO would clear the currently stored operator password. V.34bis Series Standalone & Rackmount Modems...
  • Page 104 = 1 - Password case sensitivity enabled. %SPn Prompt Security FORMAT: AT%SPn n = 0 - Prompts for name and/or password disabled. n = 1 - (Default) Prompts for name and/or password enabled. V.34bis Series Standalone & Rackmount Modems...
  • Page 105 %SCn "AT" command security %SDn remote configuration security %SLn case sensitivity %STn password attempts allowed %SPn prompts %SWn non-volatile write security %T (string) Store Time and Date V.34bis Series Standalone & Rackmount Modems...
  • Page 106 (Default) Modem Dial Back-Up connection is continued at the end of the window n = 1 - Modem Dial Back-Up connection is dropped at the end of the window Optional on leased line models. Adaptive Packet Size FORMAT: AT*An V.34bis Series Standalone & Rackmount Modems...
  • Page 107 "busy-out" condition is set. For example: ATS0=1*H1S20=5&W will configure the modem to answer after the first ring, enable the "busy-out", and set the unanswered ring threshold to 5 rings. V.34bis Series Standalone & Rackmount Modems...
  • Page 108 (Default) CTS EIA signal *LRn Respond to Local Flow Control FORMAT: AT*LRn n = 0 - (Default) No flow control n = 1 - XON/XOFF n = 2 - RTS/RTR EIA signal Operating Modes FORMAT: AT*Mn V.34bis Series Standalone & Rackmount Modems...
  • Page 109 XON/XOFF *RKn Pass Receive Break FORMAT: AT*RKn n = 0 - Break disabled n = 1 - (Default) Receive break immediately n = 2 - Receive break after data *RPn RTS Polarity FORMAT: AT*RPn V.34bis Series Standalone & Rackmount Modems...
  • Page 110 V.25 bis Dialer CONNECT 2400/V42BIS CNX 2400/V42BIS CONNECT 9600/V42BIS CNX 9600/V42BIS For MNP 5 (error correction and data compression) Connection: CODE "AT" Dialer V.25 bis Dialer CONNECT 2400/MNP5 CNX 2400/MNP5 CONNECT 9600/MNP5 CNX 9600/MNP5 V.34bis Series Standalone & Rackmount Modems...
  • Page 111 Enabled for DTE speed only Data Bits FORMAT: AT@Bn n = 5 - 5 bit character n = 6 - 6 bit character n = 7 - 7 bit character n = 8 - (Default) 8 bit character V.34bis Series Standalone & Rackmount Modems...
  • Page 112 = 0 - Disabled n = 1 - (default) Enabled On/Off Hook in LAL FORMAT: AT@Hn n = 0 - (default) On hook in LAL n = 1 - Off hook in LAL V.34bis Series Standalone & Rackmount Modems...
  • Page 113 = 1 - Not used n = 2 - Not used n = 3 - Not used n = 4 - Even n = 5 - Odd. n = 6 - Space n = 7 - Mark V.34bis Series Standalone & Rackmount Modems...
  • Page 114 Enables the V.25 bis HDLC synchronous dialer n = 4 - Enables the V.25 bis BISYNC synchronous dialer Transmit Equalizer FORMAT: AT@Xn n = 0 - (Default) Disables the compromise equalizer n = 1 - Enables the compromise equalizer V.34bis Series Standalone & Rackmount Modems...
  • Page 115 RESPONSE FUNCTION CFI xx Call Failure Indication CNX ssss Connect Speed (xxxx bps) Incoming Call -Ringing INV xx Invalid Command LSN n; d..d Lists Stored Number n in Response to RLN Command Valid Command V.34bis Series Standalone & Rackmount Modems...
  • Page 116 Note: Space and "." can be used as formatting characters. Dial a Stored Number FORMAT: CRS n Disregard Incoming Call FORMAT: DIC Switch to AT Mode FORMAT: GAT Store/Clear Number FORMAT: PRN n;d..d List Stored Numbers FORMAT: RLN V.34bis Series Standalone & Rackmount Modems...
  • Page 117 This can occur if a "DIC" or "CIC" command is received when an incoming call is not present, or if the "PRN" command is used when non-volatile security has been enabled. List of Stored Numbers FORMAT: LSN n; d..d Valid Command FORMAT: VAL V.34bis Series Standalone & Rackmount Modems...
  • Page 118 AT and V.25bis Command Sets V.34bis Series Standalone & Rackmount Modems...

  • Page 119: S-Registers

    This detail is noted when appropriate. The two tables that follow provide listings of the S-Registers in numeric order and then by functional groups. A third table is provided that lists all S- Registers with further details. V.34bis Series Standalone & Rackmount Modems...
  • Page 120 XOFF sent to remote XON received from DTE XOFF received from DTE BELL sent to DTE XON sent to DTE XOFF sent to DTE XON received from remote XOFF received from remote Parity error Dialing Characteristics V.34bis Series Standalone & Rackmount Modems...
  • Page 121 EIA output Flow Control and Break Handling Respond to local/remote Generate local/remote Local/remote bell; Transmit/receive filter; Command mode with transmit/receive break Pass through break; Clear buffers at break V.42 LAPM/MNP Error Correction and Data Compression V.34bis Series Standalone & Rackmount Modems...
  • Page 122 MI/MIC; A/A1; Long space disconnect Speaker control Guard tones Async/Sync; Dial-up/leased line; Clock source; ITU-T/Bell modes (External only) S-Register values at disconnect Automatic retrain Any character abort; Inactivity type Transmit levels Compromise equalizer; Overspeed Auto fall back V.34bis Series Standalone & Rackmount Modems...
  • Page 123 EIA control of speed; Online speed change enabled Constant DTE speed DCE speed/DTE speed Test Status ALB, DLB, RDL, DTMF Power-up Respond to RDL request EIA control of RDL On/Off hook in ALB; EIA control of ALB Time Intervals V.34bis Series Standalone & Rackmount Modems...
  • Page 124 RTS to CTS delay Wait for retrain Inactivity EIA drop time Transmit break width Receive break width Attention break width Leased line lookback (Leased Line only) LAPM detection phase Initial autoanswer disable timer Redial autoanswer disable timer V.34bis Series Standalone & Rackmount Modems...
  • Page 125 Bad code word received (empty location) STEP-UP received when already maximum code word size Reserved command code received LAPM negotiation failure - string length > 250 LAPM negotiation failure - string length < 6 V.34bis Series Standalone & Rackmount Modems...
  • Page 126 Retrain failure (handshake stuck) Echo correlator lockup Receive level change > 6 dB Dialing failed - bad number link Dialing failed - illegal state Dial handshake failed to complete Flash update failed S114 Number of Retrains V.34bis Series Standalone & Rackmount Modems...
  • Page 127 ATS114? The modem will return a three digit value. This value represents the actual number of times the modem retrained during the last session. V.34bis Series Standalone & Rackmount Modems...
  • Page 128 S-Registers V.34bis Series Standalone & Rackmount Modems...

  • Page 129: Maintenance And Testing

    Other Maintenance The AJ High Speed Modem provides several means of self-testing that can be performed to determine a network or equipment failure. Attempted field repair of defective units will void the warranty. V.34bis Series Standalone & Rackmount Modems...

  • Page 130: Modem Testing

    These tests can determine the function of much of the equipment involved in a data communications link. The results of these test operations are of significant importance to the CXR Telcom Customer Support Representative in determining the nature of the failure.

  • Page 131: At Test Commands

    . The AT%ERn command (0 = Disabled; 1 = Enabled) allows the modem to perform the remote digital loopback test when EIA pin 11 or pin 21 is raised. V.34bis Series Standalone & Rackmount Modems...
  • Page 132 Front Panel LAL Button of the Local Modem (Initiate Local Analog Loopback) • *Local Analog Loopback with self test: Tests the local modem transmit and receive circuits using a self-generated test pattern and error checker. V.34bis Series Standalone & Rackmount Modems...
  • Page 133 • Remote Digital Loopback (RDL): Tests the local and remote modems, the local DTE, local DTE interface, and the associated telephone circuit. Active Line Local Remote AT&T6 (Initiate Remote Digital Loopback) V.34bis Series Standalone & Rackmount Modems...
  • Page 134 Active Line Local Remote Front Panel LAL Button of the Remote modem (Initiate Remote Digital Loopback) Active Line Local Remote Front Panel LAL Button of the Local modem (Initiate Remote Digital Loopback) *Non-Error Correcton* V.34bis Series Standalone & Rackmount Modems...
  • Page 135 Local Digital Loopback: Tests the local and remote modems, the local DTE interface, and the telephone unit. Active Line Remote Local AT&T3 (Local Digital Loopback) Active Line Remote Local Front Panel LAL Button of the Local modem (Initiate Local Digital Loopback) V.34bis Series Standalone & Rackmount Modems...
  • Page 136 To initiate a remote or local digital loopback test, a dial up or leased line connection must be established. NOTE : When online with a LAPM/MNP connection the RDL and LDL tests are not operative. V.34bis Series Standalone & Rackmount Modems...

  • Page 137: Product-Line Warranty

    Products manufactured by CXR Telcom Corporation are guaranteed to be free of defects in materials and workmanship for a period of three years from the date of shipment. CXR Telcom will accept returned items, transportation prepaid to the service center, for repair during the warranty...
  • Page 138 Repair work will be performed after authorization to proceed (in the form of a purchase order) is received. Service Center CXR Telcom Corporation Attn: Customer Service 47233 Fremont Boulevard Fremont, CA 94538-6502 (510) 657-8810 (510) 657-1158 (FAX) www.cxr.com V.34bis Series Standalone & Rackmount Modems...

  • Page 139: Fcc & Canadian Regulation Info

    Part 15 (subpart J) which are designed to provide reasonable protection against such interference in a residential area. If interference should occur, the user at his own expense will be required to take whatever measures may be required to correct the interference. V.34bis Series Standalone & Rackmount Modems...
  • Page 140 The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading. The termination on a loop may V.34bis Series Standalone & Rackmount Modems...
  • Page 141 Appendix B - FCC & Canadian Regulation Info. consist of any combination of devices subject only to the requirements that the total of the Load Numbers of all the devices does not exceed 100. V.34bis Series Standalone & Rackmount Modems...

  • Page 142: Specifications

    RJ-11 Jack for the dial-up line; JM8 for the leased line TRANSMIT LEVEL: Dial network: -10.0 dBm +/- 1.0 dBm permissive mode RECEIVER CARRIER FREQ.: 1800 Hz, 1700 Hz, 2400 Hz, 1200 Hz RECEIVER SENSITIVITY: -6 to -40 dBm on dial up V.34bis Series Standalone & Rackmount Modems...
  • Page 143 117 VAC (+10%, -15%) 230 VAC (+10%, -15%) 50-60 Hz optionally available Frequency: 57 - 63 Hz POWER CONSUMPTION: 7 watts maximum DIMENSIONS: 6.75 x 11.5 x 1.5 inches WEIGHT: 6 lb. (including power supply module) V.34bis Series Standalone & Rackmount Modems...
  • Page 144 RS-232-D, V.24 LOSS OF CARRIER: Leased line to auto dial operation and dial mode to disconnect are soft programmable ERROR CORRECTION: V.42 LAPM and MNP Class 4 DATA COMPRESSION: V.42 bis and MNP Class 5 V.34bis Series Standalone & Rackmount Modems...
  • Page 145 DIMENSIONS: In UCSA-XX standalone case: 13.25 x 9.5 x 2.25 inches Rackmount modem assembly only: 12 x 6.94 x .75 inches WEIGHT: In UCSA-XX standalone case: 7 lbs. Rackmount modem assembly only: 1.6 lbs. V.34bis Series Standalone & Rackmount Modems...

  • Page 146: Rs-232 Pin Assignments

    Side Channel Transmit Data Receive Clock FALB Force Analog Loopback DLFL Dial Back-Up Indicator Data Terminal Ready Signal Quality / Force RDL Ring Indicator Speed Control / Speed Indication External Transmit Clock TEST Test Indictor / LAL V.34bis Series Standalone & Rackmount Modems...
  • Page 147 Data Set Ready SGND Signal Ground Data Carrier Detect 9-14 No Connection Transmit Clock No Connection Receive Clock No Connection No Connection Data Terminal Ready No Connection Ring Indicator No Connection External Transmit Clock No Connection V.34bis Series Standalone & Rackmount Modems...

  • Page 148: Index

    DSR....................66, 94, 102 DTR..................62, 66, 68, 90 DTR,DSR CD FORCED AT&F1..............34 DTR,DSR CD FORCED AT&F2..............34 Dup Data Frames ..................56 —E— Error Correction..............50, 53, 55, 78, 114 Errors ......................56 —F— Factory Configuration .................90 FBS ......................64 V.34bis Series Standalone & Rackmount Modems...
  • Page 149 Security..................5, 43, 80, 96 S-Registers....................112 —T— TD......................66 Test Status ....................115 Timers ....................... 48 Transmit Data .................61, 66, 95 —U— UADBU ...................72,71,112 —V— V.25 BIS BISYNC ..................34 V.25 bis HDLC/SDLC ................34 V.34bis Series Standalone & Rackmount Modems...
  • Page 150 Index V.34bis Series Standalone & Rackmount Modems...

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