Multitech CommPlete MT5634HD8 User manual

MT5634HD8 User Guide
Title: MTSLOGOK.FH5
Creator: FreeHand 5.0
CreationDate: Fri Aug 23 16:3

MT5634HD8 User Guide
P/N 82065700, 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 5/15/97 Manual released.
Multi-Tech, CommPlete, RASExpress, MultiExpress, MultiExpress Fax
MultiModem, MultiModemZDX, MultiModemManager, 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{XE "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{xe "FCC regulations"}
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 tele-
phone 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 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
1. 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 operationof yourequipment.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{xe "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{xe "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 con-
nected 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 mainte-
nance 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.

CommPlete Communications Server
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.................................................... 11
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...........................................................20
Online Connection Commands..............................................................................22
RS-232 Interface Commands ................................................................................24
Error Correction and Data Compression Commands...............................................25
Immediate Action Commands..............................................................................26
Flow Control Commands......................................................................................27
Escape Sequences.................................................................................................30
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
5 Warranty, Service, and Technical Support
Limited Warranty..............................................................................................42
Service...............................................................................................................42
Technical Support ..............................................................................................43
Recording Product Information.........................................................................43
The Multi-Tech BBS...........................................................................................44
Logging onto the Multi-Tech BBS.....................................................................44
Downloading a File.........................................................................................44
Reading a Message..........................................................................................45
Leaving a Message ..........................................................................................45
Bulletins.........................................................................................................46
About CompuServe .............................................................................................46
About the Internet ..............................................................................................46
About the Multi-Tech Fax-Back Service..............................................................46
Upgrading the MT5634HD8 Firmware ................................................................47
Using FlashPro to Upgrade Firmware..............................................................47
Appendix A ASCII Conversion Chart ........................50
Appendix B Dial Pulses and Tones .......................... 51
Appendix C Result Code Summary.......................... 53
Appendix D S-Register Summary ...........................55
Appendix E AT Command Summary........................57
Glossary............................................................... 65
Index .................................................................... 81

CommPlete Communications Server 1
1 Introduction

MT5634HD8 User Guide
2CommPlete Communications Server
Introduction
The Multi-Tech MT5634HD8 is a high speed, high density modem card for the
CommPlete Communications Server. Each MT5634HD8 card contains eight inte-
grated 56Kflex modems. Each modem on the MT5634HD8 card can be configured
independently of the others via RASexpress Software or the CommPlete
Communications Server’s MR9600 controller, which can support and control up to 12
modem cards per rack. Users dial into the MT5634HD8’s modems through a T1
daughter card on the RASCard that controls the segment. There are no external
connectors.
Three MT5634HD8 cards must be installed per T1 segment. With eight modems per
card, the CommPlete Communications Server can support up to 24 simultaneous data
lines per segment, or 96 per CommPlete Communications Server
The MT5634HD8 operates as an enhanced ITU-T V.34 dial-up modem with a maxi-
mum K56flex speeds, and is a fully digital K56flex server. As such, it includes the
advanced features of Multi-Tech standalone modems such as the popular
MultiModemZDXb.
The MT5634HD8 is registered by the {xe "FCC regulations"}FCC for direct
connection to the public telephone networks. No Data Access Arrangements ({xe
"DAA"}DAAs) are required.
The MT5634HD8 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.
Manual Organization{xe "manual organization"}
Chapter 1 Introduction
This chapter describes the MT5634HD8 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 into the CC9600 chassis.
Chapter 3 Command Mode Operation
This chapter provides an introduction to MT5634HD8 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’s S-registers, which are used to store
various modem options.
Chapter 5 Warranty, Service, and Technical Support
This chapter provides the terms of the MT5634HD8’s warranty, instructions for
obtaining factory service, and information about Multi-Tech’s BBS and technical
support. Information on upgrading the MT5634HD8’s firmware is also provided.

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{XE "indicators" }{ XE "LED indicators" }on
the front panel, two for each modem:
CD Carrier Detect. {xe "CD signal"}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 {xe "busy-out state"}busy-out or {xe "out-of-
service state (OOS)"}out-of-service state.
Power Supplies{xe "power"}
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 User Guide
4CommPlete Communications Server
Technical Specifications{ XE "specifications" }{xe
"technical specifications"}
Model Number MT5634HD8
Data Rates (Modem)Eight 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*
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 adjustable 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
dialing, 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 ModulationsFSK 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, and 33,600, and 56000 bps
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

1 Introduction
CommPlete Communications Server 5
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/
ITU-T V.32bis/V.32
1800 Hz
Carrier Frequencies:
V.22bis/V.22 or
Bell 212A Standard
(2400 & 1200 bps)
Transmit originate:
Transmit answer:
Receive originate:
Receive answer:
1200 Hz
2400 Hz
2400 Hz
1200 Hz
Carrier Frequencies:
Bell 103/113
(300 bps)
Transmit originate:
Receive originate:
Transmit answer:
Receive answer:
1270 Hz mark
1070 Hz space
2225 Hz mark
2025 Hz space
2225 Hz mark
2025 Hz space
1270 Hz mark
1070 Hz space
Carrier Frequencies:
V.21 Transmit originate:
Receive originate:
Transmit answer:
Receive answer:
980 Hz mark
1180 Hz space
1650 Hz mark
1850 Hz space
1650 Hz mark
1850 Hz space
980 Hz mark
1180 Hz space
Carrier Frequencies:
V.23 Transmit originate:
Receive originate:
Transmit answer:
Receive answer:
390 Hz mark
450 Hz space
1300 Hz mark
2100 Hz space
1300 Hz mark
2100 Hz space
390 Hz mark
450 Hz space
Fax Modulations V.21Ch2 FSK at 300 bps
V.27ter DPSK at 4800 and 2400 bps
V.29 QAM at 9600 and 7200 bps
V.17 TCM at 14400, 12000, 9600, and 7200 bps
Fax Carrier
Frequencies V.21 CH2 (half duplex) 1650 Hz mark, 1850 Hz space for transmit originate
1650 Hz mark, 1850 Hz space for transmit answer
V.27ter: 1800 Hz Originate/Answer
V.29 QAM: 1700 Hz Originate/Answer
V.17 TCM: 1800 Hz Originate/Answer
Transmit Level -13 dBm
Frequency Stability +0.01%
Receiver Sensitivity -43 dBm under worst case conditions

MT5634HD8 User Guide
6CommPlete Communications Server
AGC Dynamic Range43 dB
Interface TIA / EIA RS-232/ITU-T V.24/V.28
Diagnostics Power-on self-test, local analog loop, local digital loop,
remote digital loop.
Firmware Upgrades Flash memory; available on Multi-Tech’s BBS
Indicators LEDs for Carrier Detect and Off Hook/Out-Of-Service
Environmental Temperature range: 0°–50°C (32°–120°F)
Humidity range: 20–90% (noncondensing)
Power
Requirements{xe
"power"}
5 VDC at 0.95 A
±16 VDC at 0.1 A
Power Consumption Approximately 6 watts
Dimensions{xe
"dimensions of
MT5634HD8"}
23.3 x 2.3 x 29.2 cm (9.2 x 0.9 x 11.5 in.) H x W x D
Weight 1.1Kg (2.5 lb.)
Limited Warranty Two years
Fuses{xe "fuses"} F1 (+5 V), F2 (-16 V), F3 (+16 V)

CommPlete Communications Server 7
2 Installation

MT5634HD8 User Guide
8CommPlete Communications Server
Introduction
This chapter describes how to install{XE "installation" }the MT5634HD8 modem
card into a CommPlete Communication Server CC9600 chassis{XE "CC9600 chassis"
}. This equipment should be installed only by a qualified service person.
The MT5634HD8 assembly consists of a high-density modem card and a front panel{
XE "front panel" }. Figure 1 shows the layout of the MT5634HD8 card. The
MT5634HD8 assembly plugs into power and data, Ethernet, and T1 bus connectors on
the inside of the CC9600 chassis{XE "CC9600 chassis" }. There are no external
connectors.
Connectors
LEDs
Figure 1. MT5634HD8 modem card.
Safety Warnings{xe "safety"}{ XE "warnings" }
✔Never install telephone wiring during a lightning storm.
✔Never install telephone jacks in wet locations unless the jacks are specifically
designed for wet locations.
✔Never touch uninsulated telephone wires or terminals unless the telephone line
has been disconnected at the network interface.
✔Use caution when installing or modifying telephone lines.
✔Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electrical shock from lightning.
✔Do not use the telephone to report a gas leak in the vicinity of that leak.
48 pin
96 pin
24 pin

2 Installation
CommPlete Communications Server 9
✔Ports that are connected to other apparatus are defined as SELV. To ensure con-
formity to EN 41003, ensure that these ports are only connected to the same type
on the other apparatus.
Pre-Installation Notes
Warning: Direct interconnection (or connection by way of other apparatus) of ports
marked “SAFETY WARNING see instructions for use” with any other ports
(whether or not similarly marked) may produce hazardous conditions on the
network.
MultiTech strongly urges you to consult a qualified engineer before attempting to
make this type of connection.
• All installation{XE "installation" }must be done by a qualified service person.
• To reduce emissions, be sure to use blanking plates to cover empty slots in the
CC9600 chassis.
• Cable, wiring, and any other apparatus connected between the MT5634HD8K
modem and the point of connection to any speech band circuit shall comply with
the following:
1. The overall characteristics of the apparatus shall be such as to introduce no
material effect upon the electrical conditions presented to one another by
the modem and the speech band circuit.
2. The apparatus shall comprise only
a. apparatus approved for the purpose of connection between the modem
and a speech band circuit; and
b. cable and wiring complying with a code of practice for the installation
of equipment covered by this part of BS 6328 or such other requirements
as may be applicable.
Note: Such apparatus may have been approved subject to limitations in its use.
Installation Procedure
1. Unpack the MT5634HD8 assembly from its factory packaging. (You may wish
to save the packaging for possible future use.)
2. Perform a visual inspection of the MT5634HD8. If you are concerned about its
condition, call Technical Support for instructions.
3. The MT5634HD8 must be installed in a segment in which a RASCard with a T1
module is installed. Turn off the RAS segment where the MT5634HD8 will be
installed. (Turn off power to this segment.)
4. Remove a blank device front panel or previous MT5634HD8 card from the RAS
segment used in step 3. Do not remove the back panel.

MT5634HD8 User Guide
10 CommPlete Communications Server
5. Support the MT5634HD8 by the front panel and the bottom edge of the card,
and carefully place it into the CC9600’s open device slot. Make sure the edges
of the MT5634HD8 card mate properly with the guides of the device slot.
6. Slide the MT5634HD8 into the CC9600 chassis{XE "CC9600 chassis" }until
you feel the MT5634HD8’s connectors mate with the CC9600’s bus connectors.

2 Installation
CommPlete Communications Server 11
7. Tighten the MT5634HD8’s retaining screws.
8. Repeat steps 1 through 7 for each of the MT5634HD8’s you are installing.
Three MT5634HD8’s must be installed for each RAS segment.
9. Turn on power to the RASCard segment.
10. Check the LED indicators on the RASCard and the controllers. If the LEDs on
the controller do not light, turn off the RASCard segment. Reseat the cards by
repeating steps 5 through 9. If you continue to experience problems, consult your
CommPlete Owner’s Manual for troubleshooting tips.
Note: A self-test{XE "self-test" }runs each time the CommPlete Communications
Server is turned on. Refer to your system Owner’s Manual for more details on the
power-on self-test.

CommPlete Communications Server 13
3 AT Commands

MT5634HD8 User Guide
14 CommPlete Communications Server
Working with AT Commands
The MT5634HD8’s modems are controlled by instructions called AT commands, so
called because the attention characters{xe "AT commands:attention code"}{xe "AT
commands:AT"}AT precede each command or sequence of commands (known as a
command string){xe "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.
The modem is in command mode{xe "command mode"}when it is not dialing or
online. When it is in command mode, you have access to a complete communications
system that allows you to use several features, including the basic AT command set
described in this chapter. Using the basic AT command set, you can enter phone
numbers for automatic dialing, configure modem options, and monitor telephone ac-
tivity. In addition, you can command your modem to perform advanced features such
as error correction, data compression, speed conversion, and more.
This chapter describes the modem’s operational modes, and shows you how to use
each of the modem’s AT commands. These commands and responses are compatible
with all systems and with all data communications software using the AT command
set.
Modes of Operation
The MT5634HD8 operates in two basic functional modes: {xe "command
mode"}command mode and online mode{xe "online mode"}. (There is also an in-
between state, {xe "wait-for-carrier mode"}wait-for-carrier, in which the modem is
out of command mode but not yet online.) When you power up the modem, it is in
command mode, and is ready to accept and respond to commands from your keyboard
or software.
The modem enters online mode{xe "online mode"}after it dials, connects with
another modem, and detects a valid carrier signal. If it does not detect a carrier
signal within the time frame controlled by register S7{xe "S-registers:S7"}{xe
"abort timer"}, the modem abandons the call and re-enters command mode.
You can make the modem enter online mode{xe "online mode"}without dialing by
typing either the D command{xe "Dial command"}{xe "AT commands:D"}or the {xe
"AT commands:A"}Acommand{xe "Answer command"}.
The modem exits online mode{xe "online mode"}if the carrier signal is lost or in-
tentionally dropped. When this happens, the modem hangs up and re-enters
command mode.
By sending certain “escape” characters to the modem while online, you can make it
enter command mode without losing the carrier signal.
Command Structure
You can control a wide variety of modem operations and options when the modem is
in command mode. AT commands tell the modem to dial a number, to answer a call,
to operate at a certain speed, to use a certain compression technique, and many other
functions. AT commands consist of one or two letters, which may be preceded by an
ampersand (&), a percent character (%), or a slash character (\). The Q command,