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Western Telematic Data/FaxModem User Manual

Rack mount data/fax modem
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WTI Part No.: 12548
Rev. F
RMM
Rack Mount Data/Fax Modem
User's Guide

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  Summary of Contents for Western Telematic Data/FaxModem

  • Page 1 WTI Part No.: 12548 Rev. F Rack Mount Data/Fax Modem User's Guide...
  • Page 2 5 Sterling · Irvine · California 92618-2517 (949) 586-9950 · Toll Free: 1-800-854-7226 Fax: (949) 583-9514 · http://www.wti.com...
  • Page 3 1. Introduction The RMM Rack Mount Data/Fax Modem is designed for applications that require a single “Industrial Strength” modem that easily installs in equipment bays. The unit requires only 1 rack space, thus eliminating the hassle of equipment trays and power bricks required for “Plastic Box”...
  • Page 4: Unit Description

    RMM User’s Guide 2. Unit Description 2.1. Front Panel Indicators Status (Auto Answer) Flash (Carrier Detect) Flash (Receive Data) Flash (Send Data) (Data Terminal Ready) (Clear to Send) Page 2 Meaning Answer mode only: Modem is answering a call and DIP Switch 5 is UP (Enable Auto Answer), or register S0 is set to 1 (Auto Answer, 1 Ring).
  • Page 5: Operation

    3. Operation The following commands can be used to display current configuration status and various help menus: View Modem Setup: Basic Help Menu: Dial Command Help Menu: Configuration Command Help Menu: List of S-Registers: Reset Modem to Default Profile 0: When the View Modem Setup command (ATI4) is invoked, the RMM will display a status screen as shown below.
  • Page 6: Installation

    RMM User’s Guide 4. Installation 4.1. 48 Volt DC Power Option The 48 Volt DC input is not polarity sensitive. Therefore, you can connect either positive or negative wires from your 48 volt power source to either input and the internal circuitry will adjust for the proper polarity.
  • Page 7: Dip Switch Settings

    4.2. Dip Switch Settings Factory Switch Setting Function Data Terminal Ready (DTR) Override Normal DTR operations: Computer must provide DTR signal for modem to accept commands. Dropping DTR terminates call. DOWN DTR Override: Modem ignores DTR Verbal/Numeric Result Codes Verbal (Word) Results DOWN Numeric Results Result Code Display...
  • Page 8 RMM User’s Guide Page 6...
  • Page 9: Command Summary

    5. Command Summary · Type commands in either upper or lower case. Do not use a combination of upper and lower case characters. · Use the Backspace key to delete errors. Note that the original AT command is stored in the modem buffer, and cannot be deleted. ·...
  • Page 10 RMM User’s Guide Command Function/Options Dials the specified phone number. Can also include the following command options: “ Sets local echo. See DIP Switch 4 (Section 4.2). * E1 Sets online local echo of transmitted data ON/OFF. * F1 Controls ON/OFF hook. Page 8 Re-dials last number dialed Pulse (Rotary) Dial Mode...
  • Page 11 Command Function/Options Displays the following information. Operates speaker. * M1 Returns online. Sets pulse dial (for phone lines that don’t support touch-tone dialing). Displays/suppresses result codes. See DIP Switch 3 (Section 4.2). * Q0 Sr.b=n Sets bit .b of register r to value n (0/OFF or 1/ON). Sr=n Sets register r to value n.
  • Page 12 RMM User’s Guide Command Function/Options Sets result code displayed. Default is X4. Result Codes 0/OK 1/CONNECT 2/RING 3/NO CARRIER 4/ERROR 5/CONNECT 1200 6/NO DIAL TONE 7/BUSY 8/NO ANSWER* 10/CONNECT 2400 13/CONNECT 9600 18/CONNECT 4800 20/CONNECT 7200 21/CONNECT 12000 25/CONNECT 14400 43/CONNECT 16800 85/CONNECT 19200 91/CONNECT 21600...
  • Page 13 Command Function/Options Resets modem based on current DIP Switch settings. &$ Displays a list of ampersand (&) commands. &An Enables/disables additional result code subsets (see Xn). &A0 &A1 &A2 * &A3 &Bn Manages modem's serial port rate. &B0 * &B1 &B2 &Cn Controls Carrier Detect (CD) signal.
  • Page 14 RMM User’s Guide Command Function/Options &Fn Loads a read-only (non-programmable) factory configuration. &F0 * &F1 &F2 &Gn Sets Guard Tone. * &G0 &G1 &G2 &Hn Sets Transmit Data (TD) flow control &H0 * &H1 &H2 &H3 &In Sets Receive Data (RD) software flow control (see also &Rn).
  • Page 15 Command Function/Options &Nn Sets connect speed. If connection cannot be established at this speed, the modem will hang up. Sets ceiling connect speed if &Un is greater than 0 (See &Un). * &N0 &N1 &N2 &N3 &N4 &N5 &N6 &N7 &N8 &N9 &N10 19,200 bps...
  • Page 16 RMM User’s Guide Command Function/Options &Tn Begins test modes. &T0 &T1 &T2 &T3 &T4 * &T5 &T6 &T7 &T8 Sets floor connect speed when &Un is greater than 0. &Nn is the ceiling connect speed (See &Nn). * &U0 &U1 &U2 &U3 &U4...
  • Page 17 Command Function/Options &Zn=s Writes phone number s to NVRAM at position n (n = 0-3). &Zn=L Writes last executed dial string to NVRAM at position n (n = 0-3). &Zn? Displays the phone number stored at position n (n = 0-3). &ZL? Displays the last executed dial string.
  • Page 18 RMM User’s Guide 6. S-Registers Note: To change a setting, use the ATSr=n command, where r is the register and n is a decimal value from 0-255 (unless otherwise indicated). Register Default Page 16 Function Sets the number of rings on which to answer in Auto Answer Mode.
  • Page 19 Register Default (continued) * The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem and Ymodem type file transfer protocols without using flow control. The 128 Byte option allows remote users with slower modems to prevent transmitted data from scrolling off screen. When a remote user sends an XOFF (Ctrl-S) to your computer and transmission stops, data in transit from your modem's buffer does not exceed the size of the remote user's screen.
  • Page 20 RMM User’s Guide Register Default Page 18 Function Reserved Bit-mapped register setup. To set the register, see instructions for S13. Value Result Disable ARQ/MNP for V.22. Disable ARQ/MNP for .22bis. Disable ARQ/MNP V.32 / V.32bis / V.32terbo. Disable MNP handshake. Disable MNP level 4.
  • Page 21 Register Default Function Sets the duration (in hundredths of a second) that DTR must be dropped in order to be interpreted as a DTR loss. Allows the modem to differentiate between a random glitch and a true DTR loss. In most cases, the default value can be used. The S25 register is useful for setting compatibility with older systems running under older operating software.
  • Page 22 RMM User’s Guide Register Default S35-S37 Page 20 Function Sets the duration (in tenths of a second) of the V.21 answer mode fallback timer. Reserved. Reserved. Bit mapped register setup for 28.8 modems only. To set the register, see the instructions for S13. Value Result V.8 Call Indicate enabled.
  • Page 23: Default Function

    S-Registers Register Default Function Sets an optional delay (in seconds) before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ call. This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected. When set at the default (0), the modem immediately hangs up when DTR drops.
  • Page 24: Specifications

    RMM User’s Guide 7. Specifications Compatibility: ITU-T V.34+: 33.6 Kbps ITU-T V.34: 28.8 Kbps ITU-T V.32 bis: 14.4 Kbps ITU-T V.32: 9600 bps ITU-T V.22 bis: 2400 bps Bell: 212 / V.22, 103 / V.21 Supports: V.42 / MNP 2-4 Error Control V.42 bis / MNP 5 Data Compression.
  • Page 25: Customer Service

    8. Customer Service Customer Service hours are from 8:00 AM to 5:00 PM, PST, Monday through Friday. When calling, please be prepared to give the name and make of the unit, its serial number and a description of its symptoms. If the unit should need to be returned for factory repair it must be accompanied by a Return Authorization number from Customer Service.
  • Page 26 RMM User’s Guide Trademark and Copyright Information WTI and Western Telematic are trademarks of Western Telematic, Inc. All other product names mentioned in this publication are trademarks or registered trademarks of their respective companies. Information and descriptions contained herein are the property of Western Telematic, Inc.

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