Multitech MT5634HD16 User manual

MT5634HD8/16 User Guide

MT5634HD8/16 User Guide
P/N 82074700, Revision A
Copyright © 1997 by Multi-Tech Systems, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed
written permission from Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representation or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
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.
Revision Date Description
A 11/15/97 Manual released.
Multi-Tech, CommPlete, RASExpress, MultiExpress, MultiExpress Fax MultiModem, MultiModemZDX,
MultiCommManager, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc. Other
trademarks and trade names mentioned in this publication belong to their respective owners.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
[phone] or [phone]
U.S. Fax [phone]
Technical Support [phone]
BBS [phone] or [phone]
Fax Back [phone]
Internet Address: http://www.multitech.com

CommPlete Communications Server iii
Federal Communications Commission Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the user will be
required to correct the interference at his own expense.
Warning: Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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.
2. When trouble is experienced, you must disconnect your modem from the telephone company’s jack
to determine the cause of the trouble, and reconnect your modem only when the trouble is
corrected.
3. The modem cannot be connected to pay telephones or party lines.
4. If requested by the telephone company, you must notify them of the following before the
MT5634HD8/16 is installed:
a. The particular phone line (phone number) to which the connection is to be made.
b. The FCC Registration Number. (See your CC9600 Chassis User Guide for specifics.)
c. The manufacturer’s name and model number:
Multi-Tech Systems - Model MT5634HD8 or MT5634HD16
5. If the telephone company notifies you that your device is causing harm, unplug it. The telephone
company may disconnect your service if necessary and also may change its facilities, equipment,
operations or procedures which may affect operation of your equipment. Where practical, the
telephone company must promptly inform you in writing of the temporary disconnect or change in
service, give you the opportunity to make changes allowing uninterrupted service, and inform you of
your rights to bring a complaint to the FCC.

iv CommPlete Communications Server
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.
See your fax software manual for setup details.
Canadian Limitations Notice
Notice: 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. The termination of a
interface may consist of any combination of devices subject only to the requirement that the sum of the
ringer equivalence numbers of all the devices does not exceed 5.
Notice: The Industry Canada label identifies certificated equipment. This certification means that the
equipment meets certain telecommunications network protective, operational and safety requirements.
Industry Canada does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities
of the local telecommunications company. The equipment must also be installed using an acceptable
method of connection. The customer should be aware that compliance with the above conditions may not
prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated
by the supplier. Any repairs or alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to request the user to disconnect the
equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility,
telephone lines and internal metallic water pipe system, if present, are connected together. This precaution
may be particularly important in rural areas.
Caution: Users should not attempt to make such connections themselves, but should contact the
appropriate electric inspection authority, or electrician, as appropriate.
See your CC9600 User Guide for complete Canadian Limitations information.

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v
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
Dialing Commands...........................................................................................................................................15
Dial Modifier Commands.................................................................................................................................16
Phone Number Memory Commands...............................................................................................................18
Configuration Storage and Recall Commands.................................................................................................19
Modem Response (Result Code) Commands..................................................................................................19
Online Connection Commands........................................................................................................................22
RS-232 Interface Commands ...........................................................................................................................24
Error Correction and Data Compression Commands.....................................................................................26
Immediate Action Commands.........................................................................................................................27
Flow Control Commands .................................................................................................................................27
Escape Sequences .............................................................................................................................................29
Diagnostic Commands .....................................................................................................................................31
Speaker Settings................................................................................................................................................31
4 S-Registers
Introduction .....................................................................................................................................................34
S-Registers ........................................................................................................................................................34
Reading and Assigning S-Register Values .......................................................................................................38
Examples of Assigning Values.....................................................................................................................38
Examples of Reading Values .......................................................................................................................39
AT Commands that Affect S-Registers ............................................................................................................39

vi CommPlete Communications Server
Appendix A ASCII Conversion Chart ........................................... 42
Appendix B Dial Pulses and Tones............................................... 43
Appendix C Result Code Summary .............................................. 45
Appendix D S-Register Summary................................................... 47
Appendix E AT Command Summary ........................................... 49
Glossary.............................................................................................................. 57
Index....................................................................................................................... 71

CommPlete Communications Server 1
1 Introduction

MT5634HD8/16 User Guide
2CommPlete Communications Server
Introduction
The Multi-Tech MT5634HD8 and MT5634HD16 are high speed, high density modem cards for the
CommPlete Communications Server. Each MT5634HD8 contains eight integrated 56Kflex modems, and
each MT5634HD16 card contains sixteen integrated 56Kflex modems. Each modem on the card can be
configured independently of the others via RASexpress Software or the CommPlete Communications
Server’s MR9600 controller. The MT5634HD8/16 cards can be used in various combinations according to
the desired segment type; T1, PRI or Dual T1. There are no external connectors.
Three MT5634HD8 card must be installed per T1 segment. With eight modems per card, the CommPlete
Communications Server can support up to 24 simultaneous data line per segment.
One MT5634HD16 card and one MT5634HD8 card must be installed per PRI segment. With sixteen
modems per MT5634HD16 card and eight modems per MT5634HD8 card, the CommPlete
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.
Three MT5634HD16 cards must be installed per Dual T1 segment. With sixteen modems per
MT5634HD16 card the CommPlete Communications Server can support up to 48 simultaneous data lines
per segment.
The MT5634HD8/16 operates as an enhanced ITU-T V.34 dial-up modem with a maximum K56flex
speeds, and is a fully digital K56flex server. As such, it includes the advanced features of other popular
Multi-Tech standalone modems.
The MT5634HD8/16 is registered by the FCC for direct connection to the public telephone networks. No
Data Access Arrangements (DAAs) are required.
The MT5634HD8/16 is fully compatible with the standard AT command set, and is therefore compatible
with all popular communications software packages.
This user guide will help you to install, configure, test, and use the MT5634HD8/16.
Manual Organization
Chapter 1 Introduction
This chapter describes the MT5634HD8/16 and its LED indicators, gives its technical specifications, and
provides a guide to the organization of the manual.
Chapter 2 Installation
This chapter describes how to install the MT5634HD8/16 into the CC9600 chassis.
Chapter 3 Command Mode Operation
This chapter provides an introduction to MT5634HD8/16 command mode fundamentals, followed by a
detailed explanation of each AT command, providing examples where applicable.
Chapter 4 S-Registers
This chapter describes the MT5634HD8/16’s S-registers, which are used to store various modem options.

1 Introduction
CommPlete Communications Server 3
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
Appendix F Remote Configuration
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. The LED flashes when the modem is in the busy-out
or out-of-service state.
Power Supplies
DC voltages are supplied to all modems in the CC9600 rack through two PS9600 universal input switching
power supplies designed for conventional 115 or 230 VAC input. The power supplies are designed for
redundant, fail-safe operation. If one should fail, the other can supply the power requirements of the entire
CommPlete Communications Server. Each PS9600 power supply has one LED indicator that indicates the
presence of all supply voltages.

MT5634HD8/16 User Guide
4CommPlete Communications Server
Technical Specifications
Model Numbers MT5634HD8 and MT5634HD16
Data Rates (Modem) Eight or sixteen independent modems (Modem A, B, C, D, E, F, G, H), each
operating as follows:
Downloads at speeds to 56K bps when calling a fully digital K56flex server
(actual connect speed depends on line conditions).
Uploads and other connections at 33,600, 31,200, 28,800, 26,400, 24,000,
21,600, 19,200, 16,800, 14,400, 12,000, 9600, 4800, 2400, 1200, or 0-300 bps
Data Rates (Fax) 14,400, 9600, 4800, and 2400 bps
Data Format
(Modem)
Serial, binary, asynchronous at all data rates
Configuration Each of the card’s modems is independently configurable
Compatibility (Modem) ITU-T V.42bis, V.42, V.34, ITU-T V.32bis, V.32, V.25bis, V.21, V.22bis, V.22,
V.23, V.17, Bell 212A* and 103/113*, K56flex
Compatibility (Fax) ITU-T Group 3, T.4, T.30, V.21, V.27ter, V.29, V.17, and EIA TR29.2
Error Correction ITU-T V.42 (MNP® Classes 3 and 4, and LAP-M)
Data Compression ITU-T V.42bis (4:1 throughput) or MNP 5 (2:1 throughput)
Speed Conversion Serial port data rates ad
j
ustable to 300, 1200, 2400, 4800,9600, 19,200, 38,400,
57,600, and 115,200 bps
Flow Control XON/XOFF, CTS/RTS
Mode of Operation Half or full duplex over dial-up lines; automatic or manual dialin
g
, automatic
or manual answer
Intelligent Features Fully AT command compatible; auto dial; redial; repeat dial*; pulse or tone
dial; dial pauses; call status display; auto-parity and data rate selection;
keyboard-controlled modem options; nonvolatile memory; on-screen
displays of modem parameters, stored telephone numbers, and help menus.
AT Commands 100% compatible with standard AT command set
Command Buffer 40 characters
Automatic Dialing Standard AT command asynchronous dialing
Modem Modulations FSK at 300 bps, PSK at 1200 bps, QAM at 2400, 4800, and 9600 bps (non-
trellis), QAM with trellis-coded modulation (TCM) at 9600, 12,000, 14,400,
16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, 33,600, plus K56flex
speeds
Fax Modulations V.21 CH2 FSK at 300 bps
V.27ter DPSK at 4800 and 2400 bps
V.29 QAM at 9600 and 7200 bps
V.17TCM at 14400, 12000, 9600, and 7200 bps
Carrier Frequencies
ITU-T V.34
1600, 1646, 1680, 1800, 1829, 1867, 1920, 1959, 2000 Hz
Carrier Frequencies:
AT&T V.32terbo/
1800 Hz