CXR V.34bis series Specification sheet
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
© 2001 CXR Telcom Corporation. All rights reserved.
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or more information on CXR Telcom products, contact:
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ationCXR Telcom Corpor
47233 Fremont Boulevard
remont, CA 945338-6502
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The V.34bis Series Standalone & Rackmount Modems are products of CXR
elcom Corporation.
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Printed in the USA.
V.34bis Series Standalone & Rackmount Modems i
Table of Contents
1. INTRODUCTION ........................................................................ 1
How To Use This Manual................................................................. 1
Product Description........................................................................ 3
Standard Features......................................................................... 3
Standard Features......................................................................... 4
2. INSTALLATION AND CONNECTION............................................ 7
Receiving and Unpacking................................................................ 7
Package Contents....................................................................... 7
Installation Requirements............................................................... 8
Telephone Line Access................................................................ 9
System Start-Up ........................................................................... 9
External Dial-Up Modems...........................................................11
Rackmount Modem Card ............................................................14
Switch Settings ............................................................................16
Power On Test..............................................................................17
3. MODES AND CONFIGURATIONS.............................................. 19
Common Operations .....................................................................19
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
Table of Contents
ii V.34bis Series Standalone & Rackmount Modems
4. FRONT PANEL CONFIGURATIONS ............................................ 62
External Front Panel Operation ...................................................... 62
Rackmount Front Panel Operation.................................................. 67
5. LEASED LINE ............................................................................ 73
Originating Modem....................................................................... 74
Answering Modem........................................................................ 74
Manual Dial Back-Up ................................................................... 80
Change Real Time and Date .......................................................... 80
6. AT AND V.25BIS COMMAND SETS ........................................... 81
AT Commands by Function............................................................ 81
7. S-REGISTERS........................................................................ 115
S-Register Functions ...................................................................115
8. MAINTENANCE AND TESTING................................................. 125
Modem Testing...........................................................................126
Guide To Testing.........................................................................126
AT Test Commands.....................................................................127
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 1
1
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. AJ
modems also provide the benefits of error correction and data compression
to enhance the reliability and efficiency of the data communications.
AJ modems are compatible with ITU-T V.34, V.32terbo, V.32bis, V.32,
V.42, or V.42bis standards, as well as the applicable Bell standards listed in
the Product Description of this manual.
How To Use This Manual
This manual consists of eight chapters as well as appendices and an index.
The appendices serve as a quick reference for detailed information
provided in the chapters. A listing of the chapters with a brief description of
their contents follows:
1- Introduction
This chapter provides information on manual organization as well as an
introduction and a detailed description of the AJ modem.
2 - Installation & Connection
Installation and connection leads you through the procedures to unpack,
inspect, and install your modem. Also included are requirements for
minimum PC system configurations and rack systems.
3 - Modes & Configurations
This chapter describes how to control and configure the modem.
Descriptions of common operations, and selecting a factory configuration
are also included.
4 - Front Panel Operation
Front panel operation describes the operation and function of front
rackmount and external panel controls and indicators. Included are
descriptions of the DL/DIS operation and a summary of LED indicators and
functions.
5 - Leased Line Operation
Introduction
2 V.34bis Series Standalone & Rackmount Modems
Includes information for 2 and 4-wire leased line modes, Unattended and
Manual Dial Back-Up.
6 - AT and V.25bis Operation
The operation of the AJ modem using the AT command set is described in
this chapter. Listing of the AT commands by function as well as
alphabetical order are provided. V.25bis commands are provided at the
end of this chapter
7 - S-Registers
This chapter discusses S-registers used to store configuration parameters.
8 - Maintenance and Testing
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
Introduction
V.34bis Series Standalone & Rackmount Modems 3
Product Description
This manual describes the operation of the 3 types of AJ High-Speed
Modems; external, internal and rack mountable. These modems also come
in either line or dial up configurations. AJ modems provide up to 33.6K bps
modem data communications and Group III, Class 1 and 2 leased line fax
send/receive at 9600 bps. Both configurations are downward compatible
with V.22/V.22bis, Bell 103 and 212A modems operating at speeds as low
as 300 bps. Significant non-volatile memory is provided to store and recall
multiple operating configurations, telephone numbers and security codes.
Remote configuration monitoring and control and extensive security modes
are also provided.
Standard Features:
•V.34 Compatible; 33.6K bps full duplex operation
•V.34 Compatible; 28.8K bps full duplex operation
•V.32terbo Compatible; 19.2K bps full duplex operation
•V.32bis Compatible; 14.4K bps full duplex operation
•V.32 Compatible; 9600 bps full duplex operation with trellis coding
•V.23, V.22bis, V.22, V.21, and Bell 212 and 103 compatible; at 2400,
1200 and 300 bps full duplex operation
•2 and 4-Wire Leased Line Operation with Unattended Automatic Dial
Back-Up (UADBU) (Leased Line models only)
•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
Introduction
4 V.34bis Series Standalone & Rackmount Modems
Standard Features Continued:
•"Good Connection" feature obtains an acceptable dial line
•Simulated Half-Duplex Operation as Defined by ITU-T V.13
•10 Stored Configurations
•Remote Configuration Monitoring and Control
•Synchronous and Asynchronous operation
•Non-volatile Memory for storing parameters and phone numbers
Dialer Features
•Asynchronous "AT" expanded command set for dialing
•Alternate ITU-T V.25bis dialer
•Pulse, tone and adaptive dialing
•Second dial tone detection
•Single command redial operation
•Dialing from the PC keyboard
•Automatic redial when the connection provides poor signal quality or
loss of carrier is detected
•Storage of 100 telephone numbers of a maximum of 25 digits each
•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)
Introduction
V.34bis Series Standalone & Rackmount Modems 5
Security Features
•Answerback
•Pass-through Access
•Callback
•Automatic Modem Password Access
•Operator Password
•Supervisor Password
Test Features
•Power-up self-test
•Local digital loopback per ITU-T V.54
•Local Analog Loopback
•Remote Digital Loopback
Power Supplies (External Models Only)
The power supply module for the external model is supplied with the
modem. 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.
Introduction
6 V.34bis Series Standalone & Rackmount Modems
V.34bis Series Standalone & Rackmount Modems 7
2
Installation and Connection
Receiving and Unpacking
Examine the boxes when the equipment is received. If signs of damage or
rough handling are evident, have the carrier's agent present when the
equipment is unpacked. Unpack the equipment carefully. Inspect it for
scratches, dents, cracks, or any other signs of damage. If the equipment is
damaged, save all the packing materials and notify both CXR Anderson
Jacobson and the carrier immediately. AJ will arrange for repair or
replacement of damaged equipment without waiting for settlement of claims
with the carrier. 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 .
Package Contents:
Your modem comes in a protective carton along with a number of other
items. The contents of the box will depend upon whether you have
purchased an internal or external AJ modem model.
External Modem
•AJ High Speed Modem Manual
•RJ-11 dial-up phone cable
•DC Power Supply
Rackmount Modem Card
•AJ High Speed Modem Manual
•(1) 4-pin Telco Cable
•(1) 8-pin Telco Cable
Rackmount Modem Card in Standalone Chassis
•AJ High Speed Modem Manual
•(1) 4-pin Telco Cable
•(1) 8-pin Telco Cable
In case of a shortage in any of the items for your particular modem, please
contact your local distributor, or CXR Customer Service at (510) 657-8810.
Installation
8 V.34bis Series Standalone & Rackmount Modems
Installation Requirements
This section explains how to install the AJ High Speed modem in the
rackmount chassis or standalone case.
Items Needed to Install a Dial-Up External Modem
√PC with an RS-232 serial port
√RJ-11 telephone jack
√An RS-232 shielded cable with a 25-pin D-type connector for the
modem-to-DTE connection
√A telephone set (optional) only if voice operation is needed
Items Needed to Install a Leased Line External
Modem
√A DTE, PC or terminal with an RS-232 serial port
√A RJ-45 telephone line jack, and leased line connections terminated in
a JM-8 jack
√An RS-232 shielded cable with a 25-pin D-type connector for the
modem-to-DTE connection
√A telephone set required only for manual dial back-up operation
Items Needed to Install a Rackmount Modem
√Power Cord (Standalone chassis only)
√Two telephone cables (one with RJ-11 plug at both ends for dial line
connections, and one with RJ-45 plug at one end and spade lugs at
other for leased line connections)
√DTE (Data Terminal Equipment) with an RS-232 serial port
√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
Installation
V.34bis Series Standalone & Rackmount Modems 9
Determining the optimum location is the combination of several factors and
compromises. For the desktop installation it is a matter of operator
convenience and effectiveness, and the modem's proximity to line power, to
the telephone wall jack, to the telephone set (if it is to be used with the
modem) and to the location of the terminal equipment.
The rackmount chassis is typically located in a cabinet/rack that holds other
equipment or other rackmount chassis of modems. Adequate line power for
all the equipment in the cabinet must be available or brought to the chosen
location. The modem printed circuit assemblies (cards) require about 15
inches in front of the cabinet to be plugged in and out of the rackmount
chassis. Since an operator is expected to walk in front of the cabinet to
operate and observe the front panel on some occasions the space for
passage should at least be the 15 inches needed for the modem.
The rackmount modems and their chassis are designed with free airflow in
the vertical direction to provide natural convection cooling. The
specifications for the modems require a maximum ambient temperature for
the modem card of 122°degrees F. The modem rackmount chassis may
be stacked and the air will flow through the stack, but the considerations of
the temperature and the flow of the air become more critical. When
rackmount modem chassis are located in cabinets with other equipment
that would block the convection cooling it is necessary to provide a
minimum of one and one-half inches of unobstructed space at the top and
bottom so that airflow is not restricted. When the heat generated by the
equipment in the cabinet cannot be ventilated by convection cooling then
forced airflow is required. This may be done by the addition of a blower
assembly to the cabinet to force air through the equipment. In a computer
room there may be cooled air moving through ducts that may be vented into
the cabinet by only providing the appropriate openings in the floor.
Telephone Line Access
The proximity to the telephone lines must be considered in the planning
phase of the installation. The consideration of routing dial lines from a
corporate PBX system may be involved and require consultation with the
group that maintains the PBX system. The routing of bundles of cables and
the consideration of the 50 pin connector termination or the use of multiple
RJ-45 type jacks requires analysis. The future expansion or changing
requirements of the data communication system may become a part of this
decision. The use of digital lines has many of the same considerations, but
it is more likely that the Bell Operating Company serving your facility must
be consulted for determining the location for the line installation effort and
the type of connections that are the most reasonable for now and in the
future. The schedule for the planned telephone line installation may
become a critical part of completing the installation in a timely manner.
System Start-Up
Installation
10 V.34bis Series Standalone & Rackmount Modems
A common start-up procedure applies after the modem installation is
completed through the power on sequence. Your AJ Modem is shipped
from the factory with a common default configuration. The factory settings
for the various modem functions are presented in Table 3.1. This
configuration is stored in non-volatile memory and can be reviewed at any
time by the user with the status AT&Sn command (see Chapter 3). If the
"n" position is omitted then the full twelve pages are presented, but the
continuation of the status display can be aborted by typing any character
except <enter>. If n = the desired page of the status display, then only that
page is presented
After connecting the modem to the DTE and to the telephone line or lines,
the user should look over the option settings and note which items must be
changed from the factory settings to configure the modem appropriately for
the system and application being used. As shipped, the User Configuration
0 is the same as the dial-up Factory Configuration 0.
Installation
V.34bis Series Standalone & Rackmount Modems 11
TEL SET TEL LINE TERMINAL POWER OFF ON
Figure 2.1: How to Install the External Dial-Up Modems
1. Place the modem on a surface near an AC outlet, the RJ-11 telephone
wall jack and your PC.
2. Connect the modem to the telephone line. Insert one end of the
telephone cable into the modem jack marked "TEL LINE" and the other
end into the telephone wall jack.
3. Connect your telephone (optional). Connect the telephone cable from
the telephone set to the modem jack marked "TEL SET".
4. Connect the modem to your PC. Attach the RS-232 cable from the
serial port to the modem connector marked "TERMINAL". Read your
PC owner's manual to locate the serial port.
5. Turn the modem power switch OFF. Connect the power supply cable
into the connection marked "POWER" on the modem. Plug the power
supply into a standard three-prong AC wall outlet.
6. Turn the modem power switch ON. The modem will perform a self-
test. If the modem passes the self-test, three short beeps will be
heard. Failure is indicated by four lower pitch tones. If a failure occurs,
turn off the modem, check all connections, and try again. If modem still
fails, call 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.
Installation
12 V.34bis Series Standalone & Rackmount Modems
Figure 2.2: External Modem Switches and Jumpers
Modem
Wall Jack
Simple
WithTelephone
Modem
Wall Jack
With Telephone
&
Answering Machine
Modem
Wall Jack
Answering
Machine
Figure 2.3: Connecting the Wiring for a Dial-Up
External Modem
Installation
V.34bis Series Standalone & Rackmount Modems 13
LEASE LINE TEL LINE TERMINAL POWER OFF ON
Figure 2.4: Installing the External Leased Line Modem -
2/4-Wire
Installing the Modem
To install the modem, place it on a convenient surface within reach of an
AC outlet, the telephone dial line connector and leased lines, and the
associated DTE (Data Terminal Equipment).
Connections
The rear of the external leased line modem has three modular jacks
labeled: LEASE LINE and TEL LINE. Determine which jacks are utilized
for the required application based upon the following:
• LEASE LINE Used for 2/4-Wire lease line applications, or as the
telephone set connection for dial-data applications. This
allows for manual dialing or voice. When using the
Automatic Dial Back-Up feature, the telephone line jack is
required to access the dial network.
• 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.
Installation
14 V.34bis Series Standalone & Rackmount Modems
Rackmount Modem Card Installation
The AJ modem card can be used in a chassis with other modems, or in a
standalone case. The chassis provides printed circuit connections to the
EIA and the telephone line connectors.
The AJ modem chassis has 16 single-card slots to hold 8 of the AJ LCD
modems or 16 standard modems. Different types of modems may be
mixed in the same chassis. The AJ UCSA-03 standalone case will hold one
single or a double card slot modem.
RJ-11/45 SIGNAL
L/L-1 LEASED LINE TRANSMITTER
L/L-2 LEASED LINE TRANSMITTER GROUND
L/L-7 LEASED LINE RECEIVER GROUND
L/L-8 LEASED LINE RECEIVER
D1-4 DIAL 1 PHONE TIP
D1-5 DIAL 1 PHONE RING
D2-3 DIAL 2 MODE INDICATOR
D2-4 DIAL 2 LINE RING
D2-5 DIAL 2 LINE TIP
D2-6 DIAL 2 MODE INDICATOR COMMON
Table 2.1: Connections to RJ-11/45 Connectors to Telco
8 7 6 5 4 3 2 1
PIN POSITIONS
1 2 3 4 5 6 7 8
PIN POSITIONS
Smart Rack Configuration UCSA-XX Configuration
Telco Jack Pin Number
1-gray 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.
Installation
V.34bis Series Standalone & Rackmount Modems 15
Figure 2.5: Rackmount Switches and Jumpers
Standard Rackmount Assembly Shown in Factory Default Position
Note: Short J10 to disable the "AT" command function
Installation
16 V.34bis Series Standalone & Rackmount Modems
Switch Settings for Leased Line Modems
In order to adapt the modem to work with non-standard interfaces and to
take advantage of the extra features of the modem, there are two sets of
dip switches (S1 and S2) of eight switches each which will configure the
signals on the serial (RS-232) interface. The following Section provides a
listing of the alternate EIA signals available with alternate switch settings.
External Series Modems - DipSwitch Default Settings
S1-1 ON RDL control using pin 21
S1-5 ON Speed control using pin 23
S2-3 ON LAL control using pin 25
ALL OTHER SWITCHES ARE OFF
Alternate Signals/Switch Settings for EIA Interface
For Signal Quality output to pin 21:
Set S1-1 & S1-4 OFF then set S1-2 ON.
For Signal Quality output to pin 11:
Set S1-2 & S1-3 OFF then set S1-4 ON.
For RDL command input from pin 21:
Set S1-2 & S1-3 OFF then set S1-1 ON.
For RDL command input from pin 11:
Set S1-1 & S1-4 OFF then set S1-3 ON.
For Speed command input from pin 23:
Set S1-6 OFF then set S1-5 ON.
For Speed indication output to pin 23:
Set S1-5 & S1-7 OFF then set S1-6 ON.
For Speed indication output to pin 12:
Set S1-6 OFF & set S1-7 ON.
For Unattended Automatic Dial Back-Up indication output to pin 19:
Set S2-1 ON.
For Unattended Automatic Dial Back-Up (UADBU) command input to pin
14:
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.
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