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Multitech MT5634HD16 User Manual

Multi-tech mt5634hd16 modems: user guide
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MT5634HD8/16 User Guide

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  • Page 1 MT5634HD8/16 User Guide...
  • Page 2 Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc., to notify any person or organization of such revisions or changes.

  • Page 3: Fcc Regulations For Telephone Line Interconnection

    FCC Regulations for Telephone Line Interconnection 1. No repairs are to be made by you. Repairs are to be made only by Multi-Tech Systems or its licensees. Unauthorized repairs void registration and warranty. Contact Multi-Tech Systems, Inc. for details of how to have repairs made.

  • Page 4: Canadian Limitations Notice

    FCC Fax Warning The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device to send any message via a telephone fax machine unless such message clearly contains in a margin at the top or bottom of each page or the first page of the transmission, the date and time it is sent and an identification of the business or other entity, or other individual sending the message and the telephone number of the sending machine or such business, other entity, or individual.

  • Page 5: Table Of Contents

    Table of Contents 1 Introduction Introduction ... 2 Manual Organization... 2 LED Indicators... 3 Power Supplies ... 3 Technical Specifications... 4 2 Installation Introduction ... 8 Safety Warnings... 8 Pre-Installation Notes ... 9 Installation Procedure... 9 3 AT Commands Working with AT Commands ...12 Modes of Operation ...12 Command Structure ...12 Command Editing...13...
  • Page 6 Appendix A ASCII Conversion Chart Appendix B Dial Pulses and Tones Appendix C Result Code Summary Appendix D S-Register Summary Appendix E AT Command Summary Glossary Index ... 71 ... 57 ... 42 ... 43 ... 45 ... 47 ... 49 CommPlete Communications Server...
  • Page 7 1 Introduction CommPlete Communications Server...

  • Page 8: Introduction

    Communications Server can support up to 24 simultaneous data lines per segment. Analog calls are routed to the MT5634HD16’s modems through a Primary Rate Interface (PRI) card which plugs into the slot next to the RASCard that controls the segment. ISDN calls are routed to the PRI where its “B” channel(s) process the call.

  • Page 9: Led Indicators

    Glossary Index LED Indicators The MT5634HD8 has 16 LED indicators (the MT5634HD16 has 32 LEDs) on the front panel, two for each modem: CD Carrier Detect. The CD LED lights when the modem detects a valid carrier signal. OH Off Hook/Out of Service. The OH LED lights when the modem is off hook, which occurs when the modem is dialing, online, or answering a call.

  • Page 10: Technical Specifications

    MT5634HD8/16 User Guide Technical Specifications Model Numbers Data Rates (Modem) Eight or sixteen independent modems (Modem A, B, C, D, E, F, G, H), each Data Rates (Fax) Data Format (Modem) Configuration Compatibility (Modem) ITU-T V.42bis, V.42, V.34, ITU-T V.32bis, V.32, V.25bis, V.21, V.22bis, V.22,...
  • Page 11 ITU-T V.32bis/V.32 Carrier Frequencies: V.22bis/V.22 or Bell 212A Standard (2400 & 1200 bps) Carrier Frequencies: Bell 103/113 (300 bps) Carrier Frequencies: V.21 Carrier Frequencies: V.23 Fax Modulations Fax Carrier Frequencies Transmit Level Frequency Stability Receiver Sensitivity -43 dBm under worst case conditions AGC Dynamic Range 43 dB Interface Diagnostics...

  • Page 12: Power Requirements

    MT5634HD8/16 User Guide Firmware Upgrades Flash memory; available on Multi-Tech’s BBS and website Indicators Environmental Power Requirements: MT5634HD8 MT5634HD16 Dimensions Weight: MT5634HD8 MT5634HD16 Limited Warranty LEDs for Carrier Detect and Off Hook/Out-Of-Service Temperature range: 0°–50° C (32°–120° F) Humidity range: 20–90% (noncondensing) 5 VDC at 1.5 A (MT5634HD8)

  • Page 13: Installation

    Installation CommPlete Communications Server...

  • Page 14: Introduction

    The MT5634HD8/16 assembly consists of a high-density modem card and a front panel. Figure 1 shows the layout of the MT5634HD16 card (the MT5634HD8 card is not shown). The MT5634HD8/16 assembly plugs into power and data, Ethernet, and T1 bus connectors on the inside of the CC9600 chassis. There are no external connectors.

  • Page 15: Pre-Installation Notes

    CC9600’s open device slot. Make sure the edges of the MT5634HD8/16 card mate properly with the guides of the device slot. 6. Slide the MT5634HD8/16 into the CC9600 chassis until you feel the MT5634HD16’s connectors mate with the CC9600’s bus connectors.
  • Page 16 8. Repeat steps 1 through 7 for each of the MT5634HD8/16’s you are installing. Three MT5634HD8’s must be installed for each T1 segment, three MT5634HD16’s must be installed for each Dual T1 segment, and one MT5634HD16 and one MT5634HD8 must be installed for each PRI segment.

  • Page 17: At Commands

    AT Commands CommPlete Communications Server...

  • Page 18: Working With At Commands

    MT5634HD8/16 User Guide Working with AT Commands The MT5634HD8/16’s modems are controlled by instructions called AT commands , so called because the attention characters AT precede each command or sequence of commands (known as a command string ). You can send commands to the modem from your keyboard while in terminal mode, or you can use communications software to issue these commands automatically.

  • Page 19: Command Editing

    A parameter after a command (0, 1, 2, etc.) tells the modem which option to use. If you do not specify a parameter, the modem assumes the 0 (zero) option. E, for example, is the same as E0. You can issue several commands on a single line (a command string) as long as the line does not exceed 40 characters.
  • Page 20 MT5634HD8/16 User Guide Table 1. AT Commands by Function Topic Dialing Action Dial Modifiers Phone Number Memory Configuration Storage & Recall Modem Responses (Result Codes) Online Connection RS-232 Interface Controls Error Correction & Data Compression Command Description Dial On-hook/off-hook Redial last number Pulse dialing Tone dialing Speakerphone mode...

  • Page 21: Dialing Commands

    Topic Immediate Action Flow Control Escape Sequences Diagnostics Speaker Settings Dialing Commands Dialing commands are used to dial and hang up. Dial s = phone number Default: none The letter D in a command causes the modem to dial the telephone number immediately following it. For example, if you type ATD5551212<CR>...

  • Page 22: Dial Modifier Commands

    Pulse or Tone Dialing Default: T The MT5634HD8/16’s modems can dial numbers by using pulse dialing, tone dialing, or a combination of both methods. Pulse dialing, used by rotary-dial telephones, uses the timed opening and closing of a relay to encode the numbers. Tone dialing, used by push-button (touch-tone) telephones, uses dual tone multifrequency (DTMF) dialing.
  • Page 23 Examples: To pulse-dial the number 555-1212, type ATDP5551212 and press E To tone-dial the same number, type ATDT5551212 and press E To call out of a PBX (switchboard) system where a 9 has to be pulse-dialed, and the rest of the number has to be tone-dialed after pausing for a second dial tone, type ATDP9,T5551212 and press E comma causes a pause.) Switch to Speakerphone Mode...

  • Page 24: Phone Number Memory Commands

    MT5634HD8/16 User Guide Detect Call Card Tone Use the $ command to dial services that require you to enter your call card number after a tone. The $ character in the dialing string causes the modem to pause and wait for an AT&T call card “bong” or a 1600 Hz tone.

  • Page 25: Configuration Storage And Recall Commands

    Modem Response (Result Code) Commands The MT5634HD8/16’s modems can give responses to commands. The most common one is OK , but the modems can also alert you or your software to dial tones, busy signals, connection speeds, and whether the CommPlete Communications Server...
  • Page 26 MT5634HD8/16 User Guide connection is made with error correction or compression enabled. These responses are called result codes , and they can be terse (numbers) or verbose (text). Echo Command Mode Characters n = 0 or 1 Default: E1 Normally, when you type commands on the keyboard, the modem echoes the characters back to the computer or terminal, which displays them on the monitor.
  • Page 27 3 AT Commands Result Codes and Call Progress Selection n = 0, 1, 2, 3, 4, 5, 6, or 7 Default: X4 The X command selects which result codes the modem provides in command mode and whether the modem uses “smart dialing” or “blind dialing”. When it smart dials, the modem listens for dial tones and busy signals and responds to them.

  • Page 28: Online Connection Commands

    At higher speeds (2400 bps and above) there is no conflict, because all protocols use the Bell frequency of 2225 Hz. Lower speeds require different frequencies.
  • Page 29 Carrier Control n = 1 Default: C1 The Cn command provides backward compatibility with some data communications software. C1 enables normal transmit carrier switching. Data Calling Tone n = 0 or 1 Default: -C0 The data calling tone is a tone of a certain frequency and cadence, as specified in the V.25 standards, which identifies whether it is remote data, fax, or voice.

  • Page 30: Rs-232 Interface Commands

    = 0 Default: Y0 When two modems are connected in reliable mode, a link disconnect request packet is sent to request a disconnect. In non-error correction mode, there is no “polite” way to request a disconnect. As a result, some “garbage”...
  • Page 31 3 AT Commands The Data Terminal Ready (DTR) signal on pin 20 of the RS-232/V.24 interface must be high, or “on,” in order for the modem to operate. A high DTR signal tells the modem that the computer it is connected to is ready to communicate through the modem.

  • Page 32: Error Correction And Data Compression Commands

    MT5634HD8/16 User Guide Error Correction and Data Compression Commands You can configure a modem to any of three different V.42 modes of operation (each mode can be with or without compression). They are the non-error correction, auto-reliable, and reliable modes. You can also turn data compression on or off.

  • Page 33: Immediate Action Commands

    I3 returns the default speed and controller firmware version number. Use this command to identify your modem’s firmware level before calling Multi-Tech Technical Support. (This is the same as I or I0.) I4 returns the firmware version for the data pump (for example, 94 ).

  • Page 34: Kn Local Flow Control Selection

    MT5634HD8/16 User Guide The &M command enables asynchronous communications mode. This is the default. &Kn Local Flow Control Selection n = 0, 3, or 4 Default: &K3 The &K command allows you disable flow control, and enable hardware or software flow control. &K0 completely disables data flow control initiated by the modem.

  • Page 35: Escape Sequences

    When XON/XOFF pacing is active, the local modem has two options regarding the XON and XOFF characters. It can respond to and discard the characters from the computer, or it can respond to the characters and pass them through the data communications link to the remote modem, thereby pacing the remote modem as well.

  • Page 36: Force Answer Mode

    MT5634HD8/16 User Guide +++AT<CR> In-Band Escape Sequence If the modem is online with a remote modem, you can cause the modem to enter command mode without disconnecting the call by typing an escape code. The default escape code used by the modem is three plus signs ( +++) followed by the letters AT , up to 10 command characters (most typically H , to hang up), and .

  • Page 37: Diagnostic Commands

    &T6 causes the modem to perform a remote digital loopback test, which verifies the integrity of the local modem, the communications link, and the remote modem. Any data entered at the local DTE is sent to, and returned from, the remote modem. To function properly, the modems must be online with error correction disabled.

  • Page 38: Mn Monitor Speaker Mode

    MT5634HD8/16 User Guide Monitor Speaker Mode n = 0, 1, 2, or 3 Default: M1 The M command allows you to control the modem speaker mode. M0 completely disables the speaker. M1 causes the speaker to be on only until a carrier signal is detected. This is the default. It allows you to hear the initial dial tones and handshake “squawking”...

  • Page 39: 4 S-Registers

    4 S-Registers CommPlete Communications Server...

  • Page 40: Introduction

    MT5634HD8/16 User Guide Introduction This chapter describes the MT5634HD8/16’s S-registers , which are small regions of memory where modem configuration information is stored. Whereas AT commands tell a modem what to do, S-registers tell the modem how to do it. Each S-register has a name that consists of the letter S and a number (S0, S1, S2, etc.), hence the term S-register .
  • Page 41 S3 defines the carriage return character by its decimal ASCII code. The default setting is the ^M character (decimal 13), which is the code for the E character. Note: If you change the S3 value, you must make corresponding changes in your data communications software.
  • Page 42 80 units for Canadian and International models, where each unit is one ms. In other words, for domestic modems, each tone is sustained for 95 ms followed by a 95 ms pause. The minimum S11 value allowed is 50 ms (50 units). The maximum S11 value is 150 ms (150 units).
  • Page 43 Data Calling Tone Unit: decimal Range: 0–1 Default: 0 (disabled) S35 enables or disables the V.25 data calling tone, which allows remote data, fax and voice discrimination. Setting S35 to zero (0) disables V.25 data calling tone; setting S35 to 1 enables data calling tone. The default setting is 1.

  • Page 44: Reading And Assigning S-Register Values

    MT5634HD8/16 User Guide Off-line Time Unit: 1 second Range: 0, 5-255 Default: 10 S89 sets the length of time, in seconds, a modem waits in the off-line command mode before it goes into standby mode. If S89 is set to 20 seconds, the modem waits 20 seconds in off-line command mode before going into standby mode.

  • Page 45: Examples Of Reading Values

    Examples of Reading Values 1. To verify that you entered the value correctly in the preceding examples, type ATS8? and press in the first example, ATS0? in the second example, and ATS2? in the third example. You NTER should receive the responses 005 , 004 , and 075 , respectively. 2.
  • Page 46 MT5634HD8/16 User Guide CommPlete Communications Server...
  • Page 47 Appendices CommPlete Communications Server...

  • Page 48: Appendix A Ascii Conversion Chart

    MT5634HD8/16 User Guide Appendix A ASCII Conversion Chart CTRL CODE Null, or all zeros Start of Header Start of Text End of Text End of Transmission Enquiry Acknowledge Bell or Alarm Backspace Horizontal Tab Line Feed HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC "...

  • Page 49: Appendix B Dial Pulses And Tones

    Appendix B Dial Pulses and Tones Dial Pulses When you pulse dial, as when you make a call with a rotary dial telephone, your telephone or modem generates codes in the form of pulses that simulate the opening and closing of old-fashioned electric relays, or switches.
  • Page 50 MT5634HD8/16 User Guide Figure 3. Standard DTMF frequencies The extended DTMF characters (A, B, C, D) are the high-end frequencies (1633 Hz) defined on some telephone sets with a fourth vertical column of buttons. This fourth column provides for extended PBX control functions.

  • Page 51: Appendix C Result Code Summary

    Appendix C Result Code Summary Multi-Tech Result Codes Terse Verbose CONNECT RING NO CARRIER ERROR CONNECT 1200 NO DIALTONE BUSY NO ANSWER CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 14400 CONNECT 19200 CONNECT 7200 CONNECT 12000 CONNECT 16800 CONNECT 300...
  • Page 52 MT5634HD8/16 User Guide Extended Result Codes. If the extended result codes configuration option is enabled, EC is added to the following result codes: CONNECT 1200 CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 14400 CONNECT 19200 CONNECT 7200 CONNECT 12000 CONNECT 16800 CONNECT 300 CONNECT 21600 CONNECT 24000...

  • Page 53: Appendix D S-Register Summary

    Appendix D S-Register Summary Register Unit 1 ring 1 ring decimal decimal decimal decimal 1 sec 1 sec 1 sec 100 ms 1 ms decimal decimal decimal CommPlete Communications Server Range Default Description 0, 1–255 Sets the number of rings before the modem answers.
  • Page 54 MT5634HD8/16 User Guide Register Unit decimal decimal 1 sec * Values for International and Canadian modems only. † Values for International modems only. ‡ Values for UK modems only. Range Default Description 0–1 For testing and debugging only. Enables / disables V.32bis and V.22bis auto rate.

  • Page 55: Appendix E At Command Summary

    Appendix E AT Command Summary Command RETURN or ENTER &Bn &Cn CommPlete Communications Server Values Description Attention Code The attention code precedes all command lines except A/ and the escape sequence. RETURN Key Press the RETURN (ENTER) key to execute most commands.
  • Page 56 MT5634HD8/16 User Guide Command &Dn +ES=6 &Fn &Gn Values Description s = phone # Dial Dial telephone number s, where s may include up to 40 alpha-numeric characters, and the L, P, T, V, W, comma (,), colon (:), semicolon (;), !, $, @ and ^ dial string modifiers.
  • Page 57 Command &Jn &Kn CommPlete Communications Server Values Description n = 0 or 1 Hook Control *** H0 Go on-hook (hang up). Go off-hook. n = 0, 1, 2, 3, Information Request 4, or 9 Display default speed and controller firmware version.
  • Page 58 MT5634HD8/16 User Guide Command &Mn &Qn Values Description n = 0 Communications Mode *** &M0 Asynchronous mode. n = 0 or 1 Modulation Handshake Modem performs handshake only at communication standard specified by S37 and the B command. *** N1 Modem begins handshake at communication standard specified by S37 and the B command, but can fallback to a lower speed...
  • Page 59 Command Sr=n &Sn &Tn &V &Wn CommPlete Communications Server Values Description r = 0–8, Set Register Value 10-11, 28, 35, Set value of S-register r to value of n, where n is 37, 42-43, or entered in decimal format. 89; n varies r = 0–8 Read Register Value 10-11, 28, 35,...
  • Page 60 MT5634HD8/16 User Guide Command &Yn &Zn=x Values Description defaults. n = 0–7 Result Codes and Call Progress Selection Basic result codes (CONNECT only); does not look for dial tone or busy. Extended result codes (w/ CONNECT 1200, CONNECT 2400, etc.); does not look for dial tone or busy signal.
  • Page 61 Command +++AT<CR> * Factory default on International model ** Not available on U.K. model *** Factory default on North American model CommPlete Communications Server Values Description the rest of the dial string. In dial Quiet Answer command Causes modem to wait for a ringback, then 5 seconds of silence before processing next part of command.
  • Page 62 MT5634HD8/16 User Guide CommPlete Communications Server...

  • Page 63: Glossary

    Glossary CommPlete Communications Server...
  • Page 64 It is also used to acknowledge the error-free receipt of transmitted data. Contract with NAK. ACS (Asynchronous Communications Server): A communications server that managers a pool of modems for shared use over the LAN. It directs outgoing messages to the next available modem and directs incoming messages to the appropriate workstation.
  • Page 65 Bell 201: The U.S. modulation standard for 2400 bps half- duplex transmission over dial-up lines or full-duplex transmission over 4-wire lines. Primarily used in synchronous modems. Bell 202: The U.S. modulation standard for 0-1200 bps, half-duplex transmission over 2-wise, or full- duplex transmission over 4-wire leased lines.
  • Page 66 Gateway, it is a PC equipped with the appropriate hardware and software package so it can function as a gateway between a LAN and its modems or host connections. COMx Port: A serial communications port on a PC. CONFIG.SYS file (pronounced “config dot sis”): A text file that contains configuration commands used when you start your computer.
  • Page 67 DOS prompt: The > symbol displayed after the disk drive letter. DPSK (Differential Phase Shift Keying): A common form of phase modulation used in modems. It does not require complex demodulation circuitry and is not susceptible to random phase changes in the transmitted waveform, thus reducing errors during transmission.
  • Page 68 This allows full-duplex modems to send and receive on the same frequency carrier. EIA (Electronics Industries Association); A membership organization founded in 1924 that includes manufactures of electronic parts and systems.
  • Page 69 ISDN (Integrated Services Digital Network): International telecommunications standard for transmitting voice, video and data over a digital communications line. ISI (Intelligent Serial Interface): Multi-Tech’s multiport serial card with an on-board processor and 50K or RAM for data buffering. The ISI does more than provide additional serial ports.
  • Page 70 Modems can be internal and fit into an expansion slot, or external and connect to a serial port.
  • Page 71 90, 180 and 270 degree angles. PSK produces the appropriate shift in phase relative to the original carrier. Differential PSK replaces this technology because it is less prone to error. Modems using PSK normally operate at 1200 bps. PSTN (Public Switched Telephone Network): A worldwide...
  • Page 72 25 lines. RTS (Request To Send signal): With communications between modems, an RS232 signal sent from the DTE to the modem requesting permission to transmit. Contrast with CTS.
  • Page 73 This is a common method of transmission between computers on a network or between modems. One or more synchronous characters are transmitted to confirm clocking before each packet of data is transmitted. Compare to Asynchronous Transmission.
  • Page 74 V.27: The CCITT modulation standard for 4800 bps, full or half-duplex transmission. Primarily for synchronous use. Not common in North America. V.27ter is used by Group 2 fax-modems for 4800 bps fax transmission. V.29: The CCITT modulation standard for 9600 bps, 2-wire (half-duplex) or 4-wire (full-duplex) transmissions, primarily over leased lines (synchronous or asynchronous).
  • Page 75 Glossary CommPlete Communications Server...
  • Page 76 MT5634HD8/16 User Guide CommPlete Communications Server...

  • Page 77: Index

    Index CommPlete Communications Server...
  • Page 78 34, 38 disabling, 34 Auto Retrain command, 27 auto-reliable mode, 26 Auxiliary Relay Control command, 29 backspace character, 13, 35 BBS, Multi-Tech, 44 blacklist, 22 blind dialing, 15, 21 break signal, 24 busy signal, 15, 18, 21, 36 busy-out state, 3...
  • Page 79 15, 21 modifiers, 16 pause time, 17, 36, 38 smart dialing, 15, 21 Dialing Pause command, 17 dimensions of MT5634HD16, 6 Disable Data Calling Tone Transmission command, 18 DSR signal control of, 25 DTMF (dual tone multifrequency) dialing, 16...
  • Page 80 Reset Modem command, 19 result codes, 13, 20, 21 call progress selection, 21 enable/disable, 20 extended codes, 21 Multi-Tech, 53 summary, 53 verbose/terse selection, 20 Result Codes (Verbose/Terse) command, 20 Result Codes and Call Progress Selection command, 17, 21 Result Codes Enable/Disable command, 20...
  • Page 81 View Numbers in Blacklist command, 22 Wait for New Dial Tone command, 17 wait timer, 35, 38 wait-for-carrier mode, 12 CommPlete Communications Server warnings, 8 World Wide Web, 46 XON/XOFF, 29 XON/XOFF Pass-Through command, 29 Index...
  • Page 82 MT5634HD8/16 User Guide CommPlete Communications Server...
  • Page 84 P/N 82074700...

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