Boca HOME OFFICE, HOME OFFICE MODEM 33.6 User Manual

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HOME OFFICE MODEM

33.6

Internal/External Fax Modem

Advanced User’s Guide

HOME/OFFICE MODEM

Before You Begin your Installation

The product you have purchased is designed to be easily installed into most IBM PC or compatible systems. Many products have large, easy-to-read legends to allow for the easy configuring of the product. This installation manual contains detailed instructions. Most included software has automatic installation programs to place the software correctly onto your computer. However, as all computers are configured differently, you may be required to perform some basic DOS or Windows tasks. If you are not familiar with basic DOS commands such as DIR, CD, or EDIT, you should check your DOS manual, or seek assistance from you local computer dealer to install the product.

How to get Technical Assistance

The dealer that you purchased this product or your computer from is the first place you should go for technical assistance. The dealer is

usually the most qualified source of help, and is most familiar with your system and how this product should be installed. Many dealers have customer service and technical support programs, with varying levels of support

offered, depending on your needs and computer knowledge. Please

contact the dealer first whenever a problem occurs. International customers will find that contacting the place of purchase for assistance will be much more efficient than contacting Boca Reserach directly.

If your Dealer Can’t Assist you

If you can’t get assistance from your dealer, the manufacturer provides varying levels of technical assistance as summarized on the following page. All phone numbers are based in the United States.

Boca BBS

561-241-1601

Automated

Fax Retrieval System

561-995-9456

The Standard Free Technical Support number is for quick answers to specific inquiries on product features and technical questions (call 561-241-8088; M-F, 8 am to 6:30 pm EST). Direct access to technical support representatives is

Standard Free Technical Support

561-241-8088

Priority Service

900-555-4900 ($2 per minute)

On-Line Support!

CompuServe: GO BOCA Internet: email: support@bocaresearch.com on the World-wide WEB:

http://www.bocaresearch.com

provided on a limited basis. If you require immediate attention or in-depth help with the installation of the product, please call our 900-priority support number for service. This number gives you immediate access to senior-level technicians. The number is 900-555-4900. You will be charged $2.00 per minute. The charges will appear on your next phone bill.

Damaged or Missing Items

We use many world-class quality assurance programs to ensure the product you purchased is of the highest caliber. Sometimes, however, a component may be missing from the box, or is damaged or corrupt in some way. If this happens, immediately return the entire package to your place of purchase so you may exchange it for a new one. Your dealer should be able to provide you with an exchange far more quickly than by contacting us directly. If for some reason you are unable to return the product directly to its place of purchase, refer to the “Servicing Your Product” and “Warranty” sections in this manual for instructions.

HOME/OFFICE MODEM

Using the Boca Research HOME/O FFICE MODEM manual. This manual provides installation and operating instructions for the Boca H

OME/OFFICE MODEM. The manual assumes the user has basic

computer skills and is familiar with personal computers. Its primary purpose is to provide physical installation instructions and basic troubleshooting. All sections should be read carefully before beginning any installation procedures. Our customer support experience has shown that many costly and time-consuming calls to our technical support staff can be avoided with closer attention to the information provided here. In addition to following the instructions

provided in this manual, you will also need to consult the documentation supplied with your communications software.

IMPORTANT NOTICE

FCC Requirements

The Federal Communications Commission (FCC) restricts the way you can use modems. Read the FCC compliance statement found in Appendix B of this manual.

Connecting the Modem

You can connect the modem to various types of telephone jacks. The acceptable phone jack types are RJ-11, RJ-12, RJ-13, RJ-41S, and RJ45S. Most homes and businesses use one of these jacks. If your phone system does not have a modular jack, you can purchase an adapter to convert your jack into an RJ-11C jack. Adapters may be purchased from any local phone or electronics store.

©1996 Boca Research, Inc. All rights reserved. No reproduction of this document in any form is allowed without permission in writing from Boca Research, Inc. Boca Research is not liable for any damage resulting from technical or editorial errors or omissions contained in this document. The information in this manual is subject to change without notice. Revisions to the product(s) in this manual may occur at any time without notice.

Trademarks

All Boca Research products are trademarks of Boca Research, Inc. All other references to computer systems, software, and peripherals use trademarks owned by their respective manufacturers.

Publication Date: December, 1996 Printed in the U.S.A. HOMEOFF.PM6

Contents

Section One: Introduction ............................................ 7

Section Two: Package Contents .................................. 9

Section Three: External Modem Requirements and

Status Indicators ..................................................... 11

Section Four: Internal Modem: Advanced

Configuration for Windows 95 ........................... 13

Section Five: Troubleshooting .................................. 14

Appendix A: Technical Specifications .................... 19

Appendix B: Compliance Information.................... 20

Appendix C: Modem Command Reference ........... 2 7

Basic AT Commands ............................................... 31

Extended AT Commands ....................................... 35

MNP Operation ........................................................ 38

AT Commands for V.42/V.42bis.......................... 4 1

AT+MS (Modulation Select)................................. 43

S-Registers ................................................................. 4 8

Result Codes.............................................................. 53

Appendix D: Servicing Your Product...................... 58

Appendix E: Warranty Information......................... 6 1

Glossary ........................................................................... 62

HOME/OFFICE MODEM

Section One: Introduction

The V.34 protocol offers the newest technology allowing faster and more reliable connections between modems.

The Boca H

OME/OFFICE MODEM is based on the Rockwell

chip set. This modem supports the highest possible speeds today.

Features

n Highest supported data transmission rates by the V.34

(33.6Kbps) standard; 14.4Kbps send/receive fax.

n 100% compatible with the Hayes ‘AT’ command set. n Auto-dial and auto-answer; tone or pulse dialing. n Group III send and receive fax capability with support

for Class 1 and Class 2 fax commands.

n Communication ports selectable as COM1, 2, 3, or 4

using interrupts 3, 4, 5, or 7 (INTERNAL ONLY).

n DTE speed up to 115.2Kbps, 16550 UART interface

(internal), serial CCITT V.24 (EIA/RS-232-D) (external).

n Supports V.42/MNP2-4 error control and V.42bis/

MNP5 data compression for throughput up to

115.2Kbps

Introduction

Installation Hints

Your HOME/OFFICE MODEM has been pre-set at the factory for optimum performance. All defaults are set to allow the modem to negotiate the best possible connection with highest quality, data compression, and error correction. Because of these factory defaults, the suggested initialization (INIT) string is: ATZ.

If you want to custom configure your stored profiles, we suggest that you always start out with an AT&F&C1&D2 before customizing other commands. This string will reset the modem to the factory defaults as well as reset some other basic settings.

Notes on Performance

To get optimum performance from your H

OME/OFFICE

MODEM, the phone line quality over which you are transmitting and receiving must be reliable and relatively free of “noise”.

HOME/OFFICE MODEM

Section Two: Package Contents

This section explains how to connect the Boca Research H

OME/OFFICE MODEM to your computer.

External Modem

Verify that your external modem package contains the following items:

EXTERNAL MODEM

ADVANCED USERS GUIDE

AC POWER ADAPTER

RJ-11 CABLE

COMMUNICATIONS SOFTWARE & MANUAL

(Phone cable configuration will vary for international settings.)

If any items are missing or damaged, contact the vendor from whom you purchased the modem for assistance.

Package Contents

Internal Modem

Verify that your internal modem package contains the following items:

INTERNAL

HOME/OFFICE

COMMUNICATIONS SOFTWARE & MANUAL

ADVANCED USERS GUIDE

MODEM

RJ-11 CABLE

(Phone cable configuration will vary for international settings.)

If any items are missing or damaged, contact the vendor from whom you purchased the modem for assistance

HOME/OFFICE MODEM

Section Three: External Modem Requirements and Status Indicators

The external version of the HOME/OFFICE MODEM has few requirements and is easy to use. Be sure to read the information in the Appendix about connecting to the phone company. In addition, note the following:

n The communication settings are controlled by the

software that manipulates the serial interface present in your system. The external modem is connected to that interface.

n Operating the H

OME/OFFICE MODEM with a computer

requires communication software, either as a stand-alone product as included here, or as part of an application program.

n The H

OME/OFFICE MODEM takes a DB-25 (25-pin male

connector), but computer equipment varies. Check the serial ports at the rear of your system.

n The H

OME/OFFICE MODEM uses an existing serial port (9-

or 25-pin connector) on the back panel of your computer. You will need a 25-pin serial cable (available at most computer retailers) to attach to the RS-232 serial port connector on the back of the modem.

See the following page for a summary of the modem’s status indicators.

External Modem

Status Indicators

Indicator Definition Status

TM Test Mode FLASHES when modem is in

test mode and if any errors are detected.

AA Auto Answer ON when in Auto Answer mode

and when online with the host modem.

HS High speed ON when the modem is

powered on or communicating with another modem at 4800bps or faster.

OH Off Hook ON when the modem

takes control of the telephone line to establish a data link.

SD Send Data FLASHES when a data bit is

sent to the modem by the computer.

RD Received FLASHES when a data bit is

Data received from the phone line,

or when the modem sends result codes to the computer.

TR Terminal ON when the modem receives

Ready a data terminal ready signal

from the computer via the RS232 cable.

CD Carrier ON when the modem receives

Detect a valid data signal (carrier)

from a remote modem. Ready for data transmission.

HOME/OFFICE MODEM

Section Four: Internal Modem: Advanced Configuration for Windows 95

The Internal Boca Modem you have just purchased is an 8bit modem that can use IRQs 3, 4, 5, or 7. If you are reading this section, it is probably because Windows 95 has already assigned all of the above-mentioned IRQs to other devices in your system.

In order for you to complete installation of the modem, you must first make one of the IRQs in the group 3, 4, 5, and 7 available.

If you have an I/O card that may be using one of these resources for an extra Printer Port, for example, you can disable the extra printer port on the I/O card and make that IRQ available for your new Home Office Modem.

Another option would be to change the IRQ setting on any 16-bit device (e.g., sound card) you may be using. These 16-bit devices may be using your system’s lower IRQs, but are capable of addressing higher IRQs such as IRQ9, 10, 11. For instructions on how to accomplish this, please refer to the manual that came with your peripheral, or call the technical support number for that product. Explain that you are trying to change the IRQ setting on your device in order to free up a resource for a modem.

Advanced Configuration

Section Five: Troubleshooting

This section lists common problems that may be encountered and their possible solutions.

SYMPTOM POSSIBLE REMEDY

No dial tone.

Modem will not connect to another modem.

n Verify that you have cables

plugged in correctly.

n Connect a telephone set directly to

the wall jack and check for a dial tone. If no dial tone is heard, the telephone line is not working. Contact the telephone company.

n Check the connections between the

modem and the computer, and the modem and the telephone line.

n Make sure the telephone jack is

operational as described above.

n The telephone line may be in use

at a different extension.

No response when you type in AT commands

HOME/OFFICE MODEM

n Perhaps the number you have

called does not reach a modem, or the remote modem may not be set up to respond.

n There may be a conflicting port

address. Re-configure the modem’s COM port address (INTERNAL MODEL ONLY).

SYMPTOM POSSIBLE REMEDY

No response when you type in AT commands (contd)

AT commands not visible.

n Verify that the communication software

is set to the same communications port where your modem is attached (e.g., COM1, COM2). Check IRQ settings in your software and on the modem.

n Check your serial cable connection

(EXTERNAL MODEL ONLY).

n Try typing AT&F to reset the modem

to its factory defaults.

n Move the modem to another serial

port (power down the host computer first). If the modem works after being

moved, it’s likely the problem is not with the modem.

n Make sure the echo command is set to

ON. Change to echo with the ATE1 command.

After data connection is established, data is displayed as garbled characters.

n Make sure the local (yours) and

remote modem configurations are compatible.

n Turn off your modem (EXTERNAL),

exit, and re-run your communication software.

n Verify that both modems are operating

with the same settings, speed, data, parity, and stop bits.

n The software may not be set for correct

terminal emulation. Configure software to correct type. ANSI terminal emulation is most commonly used.

Troubleshooting

SYMPTOM POSSIBLE REMEDY

Garbled characters (contd)

The modem does not answer an incoming call.

n Power down your system

(INTERNAL) and re-run your communications software. Check software settings.

n Exit the communications

program and restart it.

n You may not have enabled auto-

answer. Use your software to enable this function.

n If you have an answering

machine, it may be answering before the modem can. Turn the answering machine off, or, use the software to set auto-answer to respond in fewer rings than the answering machine.

Modem disconnects while on-line.

HOME/OFFICE MODEM

n Check for any loose connections. n Re-try the connection by dialing

the number several times. You may be experiencing line interference.

n An incoming call may have

broken the connection if a callwaiting feature was enabled. Disable call-waiting and try again.

SYMPTOM POSSIBLE REMEDY

I am having trouble getting my init string to work.

Connection Errors

n Init strings are primarily

personal preferences. Use the most basic one that can get the job done. See Installation Hints on page 8. An &Q6 (which disables error control) is optional.

n Try connecting at a lower speed

(e.g., 9600 or 2400bps).

n Turn off error correction/

compression with an AT&Q6%C0 command.

n Noisy/poor line conditions may

prohibit connection. Have your phone company test your lines.

n Verify that the modem at the

other end is up to date and compliant with current CCITT and Bell standards.

Troubleshooting

SYMPTOM POSSIBLE REMEDY

Problem Connecting to Online subscription services.

n Some on-line services require that

your modem be configured to run with error correction and data compression turned OFF. The easiest way to accomplish this is by using the command A T&Q6 and setting the communication software to the correct baud rate for the service you are calling (e.g., 2400, 9600bps). If you still have problems connecting, try forcing the modem to connect up at the slower speed with the commands

AT&Q6N0S37=6 for 2400 baud, and AT&Q6N0S37=9 for 9600 baud

services.

Download terminates abnormally.

n Make sure the AT&R1 is set in

your active profile.

HOME/OFFICE MODEM

Appendix A: Technical Specifications

Modem Data Rate: 33.6K, 28.8K, 26.4K, 24K 21.6K, 19.2K,

16.8K, 14.4K, 12K, 9600, 7200, 4800, 2400, 1200, or 300bps

Fax Data Rate: 14.4K, 12K, 9600, 7200, 4800, 2400bps Protocol Compatibility:

CCITT: CCITT: V.34 (33.6Kbps), (ITU-TSS) V.32bis (14.4Kbps), V.32

(9600bps), V.42, V.22 (2400bps), V.21 (1200bps)

Bell: Bell 212A (1200bps), Bell 103

(300bps)

Rockwell: V.FC Fax Modulation Protocols

V.17 (14.4Kbps) transmit and receive V.29 (9600/7200bps) transmit and receive V.27 ter (4800/2400bps) transmit and receive V.21 channel 2 (300bps) transmit and receive

V.42/MNP2-4 and V.42bis/MNP5 support

LED Status Indicators: TM, AA, HS, OH, SD, RD, TR, CD (EXTERNAL)

Diagnostics: n Local/remote digital and analog loopback.

n Automatic power-on self-test.

Dimensions: EXTERNAL: 7 1/4" x 5 3/8" x 1 1/4" INTERNAL: 4 1/4" x 4 1/8

Technical Specifications

Appendix B: Compliance Information

FCC Statement:

“This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference. (2) This device must accept any interference received including interference that may cause undesired operation.

THIS UNIT COMPLIES WITH FCC PART 68 AS OF DATE OF MANUFACTURE.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Re-orient or relocate the receiving antennae.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that

to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help. Note: This unit was tested with shielded cables on the peripheral

devices. Shielded cables must be used with the unit to insure compliance.

Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.”

HOME/OFFICE MODEM

Notification to the T elephone Company

Notification to the telephone company is no longer required prior to connecting the registered equipment but upon request from the telephone company the user shall tell the telephone company which line the equipment is connected to as well as the registration number and the ringer equivalence of the registered protective circuitry. In most, but not all areas, the sum of all RENs should be 5.0 or less. The FCC Registration number and Ringer Equivalence number are printed on the main chip in the center of the internal modem board, or on the underside of the external modem.

Malfunction of the Equipment

In the event that the MODEM should fail to operate properly, the customer shall disconnect the equipment from the telephone line to determine if it is the customer’s equipment which is not working properly, or if the problem is with the MODEM, the user shall discontinue use until it is repaired. In the event service is needed the user should contact the vendor from whom you purchased the MODEM.

Telephone Connection Requirements

Except for telephone company-provided ringers, all connections to the telephone network shall be made through standard plugs and standard telephone company-provided jacks, or equivalent, in such a manner as to allow for easy and immediate disconnection of the terminal equipment. Standard jacks shall also be arranged that, if the plug connected thereto is withdrawn, no interference to the operation of the equipment at the customer ’s premises which remains connected to the telephone network, shall occur by reason of such withdrawal.

Incidence of Harm

Should terminal equipment or protective circuitry cause harm to the telephone network, the telephone company shall, where practical, notify the customer that temporary discontinuance of service may be required; however, where prior notices are not practical, the telephone company may temporarily discontinue service if such action is deemed reasonable in the circumstances. In the case of such temporary discontinuance, the telephone company shall promptly notify customers and will be given the right to bring a complaint to the FCC if they feel the disconnection is not warranted.

Compliance Information

Changes in Telephone Company Equipment or Facilities

The telephone company may make changes in its communications facilities, equipment, operations, or procedures, where such action is reasonably required and proper in its business. Should any such changes render the customer ’s terminal equipment incompatible with the telephone company facilities, the customer shall be given adequate notice to make modifications to maintain uninterrupted service.

General

The FCC prohibits customer-provided terminal equipment be connected to party lines or to be used in conjunction with coin telephone service.

Installation

The MODEM is equipped with a USOC RJ-11 standard miniature modular jack and is designed to plug directly into a modular jack.

DOC Compliance Statement (Canada)

The Canadian Department of Communications label identifies

certified equipment. This certification means that the equipment meets certain telecommunications network protective operational and safety requirements. The Department 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. In some cases, the company’s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord). 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

HOME/OFFICE MODEM

malfunction, 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.

The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the load numbers of all the devices does not exceed 100. The Load number appears on the underside of the H

OME/OFFICE MODEM.

To be installed in UL-listed and CSA-certified computers with instructions on how to add/remove expansion cards.

The RAL number of this equipment is 0.7. This number denotes the number of items that may be attached to a telephone line. The sum of all the items connected to a line should not exceeed a sum of 5.

This device is not intended to be used in parallel with other devices. The operation of this equipment on the same lines as telephones or other equipment with audible warning devices or automatic ring detectors may give rise to bell tinkle or noise and may cause trupping of the ring detector. The user should not report such occurrences as faults.

When relocating the equipment, always disconnect the telecomm line connection before the power, and reconnect the power first.

NOTE THAT F AILURE TO MEET THE ABOVE REQUIREMENTS MAY NEGATE THE USER RIGHTS UNDER THE TELECOMM TERMS OF SERVICE

Compliance Information

DECLARATION OF CONFORMITY

(In accordance with EN 45014)

We,

Boca Research, Inc.

1377 Clint Moore Road

Boca Raton, FL 33487

declare under our sole responsibility that the pr oduct,

Type of Equipment: Optical Modems Model Numbers: ‘MV.34XXI, MV.34XXE’, ‘MV.34CXXE’

to which this declaration relates is in conformity with the following standards or other normative documents:

Safety: The Product complies with the requirements of the low voltage directive 73/23/EEC, EN 60950 (1992), A1 & A2

EMC: EN 55022 (1993) Class B

EN 50082-1 (1992)

IEC 801-2 (1991), 4kV CD; 8kV A D IEC 801-3 (1984), 3 V/m IEC 801-4 (1988), 0.5 kV Signal Lines,

1 kV AC Power Lines

following the provision of EMC dir ective 89/336/EEC

Boca Raton, Florida USA

Signature and Date: available on request Typed Name and T itle: available on request European Contact:

Boca Research Holland goudsesingel 3011 kd rotterdam telefoon 010 213 45 71 telefax 010 213 29 99

HOME/OFFICE MODEM

WARNING/ATTENTION

#1“CAUTION: THIS MODEM CARD IS INTENDED TO BE INSTALLED IN CSA CERTIFIED EQUIPMENT IN THE FIELD BY THE USER IN THE MANUFACTURER’S DEFINED OPERATOR ACCESS AREA. CHECK THE EQUIPMENT OPERATING/ INSTALLATION INSTRUCTIONS AND/OR EQUIPMENT MANUFACTURER TO VERIFY/CONFIRM IF YOUR EQUIPMENT IS SUITABLE FOR USER-INSTALLED APPLICATION CARDS.”

“ATTENTION: CETTE CARTE MODEM EST DESTINEE A ETRE INSTALLEE PAR L’UTILISATEUR, SUR PLACE ET A L’INTERIEUR DE LA ZONE DEFINIE PAR LA FABRICANT, DANS UN APPAREIL CERIFIE CSA. CONSULTER LE MODE D’EMPLOI OU LE FABRICANT DE L’APPAREIL POUR VERIFIER OU CONFIRMER SI L’UTILISATEUR PEUT Y INSTALLER LUI-MEME DES CARTES PERIPHERIQUES.”

#2“CAUTION: ALWAYS DISCONNECT MODEM BOARD (THE ONE WITH THE TELEPHONE/PLUG JACK) FROM THE TELEPHONE SYSTEM WHEN INSTALLING OR WHEN COVERS ARE REMOVED FROM THE HOST PRODUCT.”

“ATTENTION: TOUJOURS DEBRANCHER LA LIGNE TELEPHONIQUE DE LA CARTE MODEM (MUNIE D’UNE PRISE OR D’UNE FICHE) AVANT DE PROCEDER A L’INSTALLATION DANS L’APPAREIL OU LORSQUE LE COUVERCLE DE CELUI-CI EST RETIRE.”

#3“CAUTION: APPLY THE ENCLOSED ADHESIVE WARNING LABEL TO THE OUTSIDE OR INSIDE OF THE EQUIPMENT ENCLOSURE ADJACENT TO THE MODEM CARD.”

“ATTENTION: APPOSER L’ETIQUETTE AUTOCOLLANTE DE MISE EN GARDE CI- INCLUSE SURE LE PAROI EXTERIEURE OU INTERIEURE DU BOITIER DE L’APPAREIL PRES DE LA CARTE MODEM.

CAUTION: Telecommunications voltages and currents can exceed the limits of safety extra low voltage (SELV), resulting in personal injury. Do not touch any components on the modem’s printed circuit board when power is applied, or the telephone cable is plugged in.

Avoid installing, handling the telephone cable, or changing the jumper settings on the modem during any weather activity where lightning strikes may occur.

This unit is intended for installation in computing devices that are nonoperator accessible. Installation is to be performed by qualified service personnel only

Compliance Information

NOTES FOR USE OF THIS DEVICE IN NEW ZEALAND

• The grant of a Telepermit for a device in no way indicates Telecom acceptance of responsibility for the correct operation of that device under all operating conditions.

• This equipment shall not be used in any manner which could constitute a nuisance to other Telecom customers.

• Some parameters required for compliance with Telecom’s PTC Specifications ar e dependent on the [equipment connected to the RS 232 port (external)] / [equipment within which this modem is installed (internal)]. The equipment shall be set to operate within the following limits for compliance with Telecom Specifications:

1. [Equipment connected to the RS 232 port (external)] / [equipment within which this modem is installed (internal)] shall meet the requirements of the New Zealand Electricity Act of 1993 and any associated Codes of Practice.

2. When the user manually initiates a call via [equipment connected to the RS 232 port (external)] /[equipment within which this modem is installed (internal)], the equipment shall operate within the following restrictions:

a. Not more than 5 call attempts shall be made to the same number within a one-

hour period.

b. There shall be at least 60 seconds between call attempts. c. Not more than a total of 10 call attempts shall be made to the same number

within a one-hour period.

d. Automatic calls to different numbers shall not be less than 5 seconds apart.

3. When used in the Auto Answer mode, the S0 Register must be set with a value between 2 and 5. This ensures:

a. A person calling your modem will hear a short burst of ringing before the modem

answers. This confirms that the call has been successfully switched through the network.

b. Caller identification information (which occurs between the first and second ring

cadences) is not destroyed.

4. This device is not intended to be used in parallel with other devices. The operation of this equipment on the same lines as telephones or other equipment with audible warning devices or automatic ring detectors may give rise to bell tinkle or noise and may cause false tripping of the ring detector. The user should not report such occurrences as faults.

5. When relocating the equipment, always disconnect the Telecom connection before the power connection, and reconnect the power first.

NOTE THAT F AILURE TO MEET THE ABOVE REQUIREMENTS MAY NEGATE THE USER RIGHTS UNDER THE TELECOM TERMS OF SERVICE.

HOME/OFFICE MODEM

Appendix C: Modem Command Reference

In most cases, your communications software will set and control the operation of your modem. Following is a brief survey of the most commonly used Hayes-compatible AT commands for use with your modem. In addition, we’ve also provided information on extended AT command sets, SRegisters, and commands and registers for high-level protocols such as MNP, V.42/V.42bis, and V.32/V.32bis.

It will rarely be necessary to use ‘AT’ commands and SRegisters in command mode. We include them here for more advanced users who may prefer command mode operation, or require special settings. See pages 31-57 for additional details.

Hayes-compatible commands consist of a basic command set and an extended command set. The basic set involves functions such as dialing a number, or putting the modem on-hook (i.e., replacing the telephone handset).

Extended commands allow more sophisticated control of the modem such as transmission speed, or initiating high-level functions like data compression or error correction. These functions are defined and controlled by the available protocols mentioned above. A protocol is a set of standards by which data communications operate.

Every AT command includes an “AT” prefix, followed immediately by the command and, in many cases, additional parameters. Multiple commands can be entered at the same time from your communications software.

AT Command[parameter) [parameter] ... PRESS ENTER

Modem Command Reference

Example: ATH or ATH0 tells the modem to disconnect Extended commands were developed to provide greater

functionality and control over modem operations. Their format is the same as the basic command except that an additional parameter is required following the AT prefix and before the numerical parameter. This additional parameter comes in three different forms:

the ampersand (&) character: extended AT command

the backslash (\) character: extended AT command for MNP

the percent (%) character: extended AT command for V.42/V.42bis

Examples:

AT&K3 enables RTS/CTS (hardware-based) flow control. Flow control

compensates for the difference between the rate at which data reaches a device and the rate at which the device processes and transmits.

AT\G1 enables flow control (software-based) (XON/XOFF) in MNP mode.

AT%E1 tells the modem to monitor line quality and request a “retrain”

(adjustment) to the connection.

S-Registers

Modem command “language” also employs a set of indicators or registers, which are various numerical values all with a standard “S” prefix, hence S-Registers. To a large extent, the values defined in the S-Registers regulate the operation of the modem and the function of some commands in the AT command set.

HOME/OFFICE MODEM

Example: S-Register 6, or S6=n, defines the length of time the modem will wait for a dial tone. In this case the acceptable range is 3-6 (in seconds) with a default value of 5. With S6=3, the modem will wait three seconds for a dial tone when going off-hook before dialing the first digit of its telephone number.

Data Communication Protocols

This can be more than a little confusing. These protocols represent various domestic and international standards which enhance modem performance and reliability. The protocols are activated and controlled by a variety of extended AT commands and S-Registers.

MNP stands for Microcom Networking Protocol and is a protocol developed by Microcom for full-duplex, error-free communications. This protocol detects and corrects errors which can result from telephone line noise and other signal distortions. There are several classes of MNP operation also referred to as service classes. Class 5 maximizes data transfer rate and provides compression which can significantly increase data throughput.

The “V-Dot” standards are more numerous, but have a single origin: the International Telecommunications Union Telecommunications Standards Sector (formerly the Consulting Committee for International and Telephone and Telegraph or CCITT). Some of the lower-level standards such as V.21 and V.22 have “domestic” equivalents as developed by the former Bell System, also referred to as Bell standards. The “V.Dot” standards may be summarized as shown on the following page.

Modem Command Reference

V.21 The CCITT standard for 300bps communications. Domestic

modems follow the Bell 103 standard, but V.21 can accept international calls at 300bps.

V.22 The CCITT standard for 1200bps communications. The

domestic equivalent is the Bell 212A standard.

V.22bis The CCITT standard for 2400bps.

V.23 CCITT for 1200bps with a 75bps back channel. This is mostly

used in Europe and South America.

V.24 CCITT serial interface standard (EIA/RS232-D).

V.32 CCITT standard for 9600bps and 4800bps communications.

V.32bis CCITT standard for an extensive range of high-speed

modems operating at 14,400bps, 12Kbps, 9600bps, 7200bps, and 4800bps.

V.42 CCITT standard for detection and negotiation for LAPM

(Link Access Procedure for Modems) error control. V.42 will also support MNP levels 2-4.

V.42bis An extension of V.42 specifying the data compression

protocol for use with V.42.

V.FC A Rockwell International-sponsored protocol. It can operate

up to 28,800bps for data

V.34 ITU-TSS protocol. It can operate up to 33,600bps for data.

HOME/OFFICE MODEM

BASIC AT COMMANDS (default values are highlighted)

NOTE: AT command functionality may vary in international settings. Command definitions listed in subsequent pages reflect domestic (U.S.) functionality.

Command Description

AT Attention characters ATA Answer command A/ Re-Execute last command

Dial Modifiers

Dial Options Description

ATD 0-9 DTMF digits

L Re-dial last number.

P* Pulse (rotary) dial. 10 pulses per

second. T Touch tone dial (DTMF). W Wait for dial tone for 1-255 seconds.

Default is 50 seconds (this value is set

by the S7 register). , (Comma) Pause for 0-255 seconds.

Default is 2 seconds (this value is set by

the S0 register. @ Wait for quiet answer. ! Initiate hook flash. ; Return to command state after

dialing. ^ Disable calling tone. S=n Dial stored number. (See AT&Z). n=0-3.

*Not supported in Holland, Norway, Sweden, and Denmark

Modem Command Reference

Command Description

Command Character Echo

ATE0 Disables echoing of the commands to the screen.

ATE1 Enables echoing of the commands to the screen.

(default)

Switch Hook Control

ATH0 Instructs modem to go on-hook. ATH1 Instructs modem to go off-hook.

Identification

ATI0 Displays the product identification code. ATI1 Displays the checksum. ATI2 Displays ROM checksum as OK or ERROR. ATI3 Displays the firmware revision level. ATI4 Reports OEM-defined identifier string. ATI5 Reports country code. ATI6 Reports modem data pump model.

Speaker volume

ATL0 Low volume.

ATL1 Low volume. (default)

ATL2 Medium volume. ATL3 High volume.

Speaker control

ATM0 Disables the modem speaker.

ATM1 Turns speaker on until carrier has been detected.

(default)

ATM2 Speaker is always on. ATM3 Speaker is on when receiving carrier and during

dialing, but off during answering.

HOME/OFFICE MODEM

Command Description Automode enable

ATN0 Requires speed of the connection be that specified

by the value of S37.

ATN1 Permits handshaking at any speed supported by

both modems. (default)

Return to on line state mode

ATO0 Switches the modem from command mode to on-

line mode without dialing.

ATO1 Switches from command mode to on-line mode and

initiates an equalizer retrain sequence. d

Mode responses

ATQ0 Enables result codes to be issued to the screen.

(default)

ATQ1 Disables result codes to be issued to the screen.

Result code format

ATV0 Numeric format.

ATV1 Verbal format. (default)

Error correction message control

ATW0 Error correction call progress not reported.

(default)

ATW1 Call progress reported. ATW2 Call progress not reported. Connect xxxx message

reports DCE speed (e.g., CONNECT 28800).

Modem Command Reference

Command Description

Extended result codes

ATX0 Disables monitoring of busy tones unless forced

otherwise by country requirements; sends only OK, CONNECT, RING, NO CARRIER, ERROR and NO ANSWER result codes.

ATX1 Disables monitoring of busy tones unless forced

otherwise by country requirements; sends only OK, CONNECT, RING, NO CARRIER, ERROR, NO ANSWER and CONNECT XXXX result codes.

ATX2 Disables monitoring of busy tones unless forced

otherwise by country requirements; sends only OK, TONE, NO ANSWER and CONNECT XXXX result codes.

ATX3 Enables monitoring of busy tones; sends only OK,

CONNECT, RING, NO CARRIER, ERROR, NO DIALTONE, NO ANSWER and CONNECT XXXX.

ATX4 Enables monitoring of busy tones and sends all

messages. (default)

Control long space disconnect

ATY0 Disables long space disconnect. (default)

ATY1 Enables long space connect.

Soft reset and restore profile

ATZ0 Restores stored profile 0. (default)

ATZ1 Restores stored profile 1.

Escape Characters

+++ The escape characters are known as+++. They will

switch from on-line mode to command mode while preserving the connection with the on line modem.

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Extended AT Commands

Command Description

Data carrier detect (DCD) signal

AT&C0 Forces DCD signal to be on at all times. (default) AT&C1 DCD on indicates presence of data carrier.

Data terminal ready (DTR) signal. Interprets the ON to OFF transition of the DTR signal from the DTE according to the &Q settings.

AT&D0 &Q0,5,6. DTR ignored.

&Q1,4. Modem hangs up; auto answer not affected. &Q2,3. Modem hangs up; auto answer inhibited. (default)

AT&D1 &Q0,1,4-6. Asynchronous escape sequence.

&Q2,3. Modem hangs up; auto answer inhibited. AT&D2 &Q0-6. Modem hangs up; auto answer inhibited. AT&D3 &Q0,1,4-6. Modem does a soft reset as if the ATZ

command were received;

&Q2,3. Modem hangs up; auto answer inhibited.

AT&F Recalls factory defaults. Instructs the modem to use

the factory set parameters.

DTE/Modem flow control

AT&K0 Disable flow control.

AT&K3 Enable RTS/CTS (default for data mode)

AT&K4 Enable XON/XOFF. AT&K5 Enable transparent XON/XOFF.

AT&K6 Enable both RTS/CTS and XON/XOFF

(default for FAX mode)

Modem Command Reference

Note on Flow Control. XON/XOFF is a software-based flow control method, using standard ASCII control characters to pause or resume data transmission. RTS/CTS pacing, a hardware-based method, uses an electrical signal. Signals are exchanged as follows:

RECEIVER TRANSMITTER

CTS ON START SENDING

CTS ON RTS ON (ready to send) CTS OFF RTS OFF (stop sending)

Command Description

Select pulse dial make/break ratio

AT&P0 Selects a make/break ratio of 39/61 at 10pps.

AT&P1 Selects a make/break ratio of 33/67 at 10pps. AT&P2 Same as 0 except at 20pps.

AT&P3 Same as 1 except at 20pps.

Asynchronous mode

AT&Q0 Direct Asynchronous mode.

AT&Q5 Modem negotiates an error-corrected link.

US andCanada. (default)

UK and Hong Kong.

(default)

AT&Q6 Selects asynchronous operation in normal mode

(i.e. speed buffering).

RTS/CTS (Request to Send/Clear to Send)

AT&R0 Not supported.

AT&R1 CTS will drop if required by flow control (default).

Data Set Ready (DSR) signal

AT&S0 Causes DSR signal to be active at all times.

(default)

AT&S1 Causes DSR signal to be active according to the

CCITT specification.

HOME/OFFICE MODEM

Command Description

Test and diagnostics

AT&T0 Terminates any test in progress. AT&T1 Executes the local analog loopback test. AT&T3 Executes the local digital loopback test.

AT&T4 Enables the modem to accept a request from a

remote modem for a digital loopback test. (default)

AT&T5 Instructs the modem to deny a request from a

remote modem for a digital loopback test. AT&T6 Executes the remote digital loopback test. AT&T7 Executes the remote digital loopback test with a self

test. AT&T8 Executes the remote analog loopback test with a

self test.

View Configuration

AT&V View current configuration and user profile.

Store user profile. Saves the current configuration into nonvolatile RAM as one of two user profiles. AT&W0 Saves as user profile 0. AT&W1 Saves as user profile 1.

Designate default user profile

AT&Y0 Selects user profile 0. AT&Y1 Selects user profile 1.

Stored phone number

AT&Z0= Stores a 45 digit dial string. AT&Z1= Stores a 45 digit dial string. AT&Z2= Stores a 45 digit dial string. AT&Z3= Stores a 45 digit dial string.

Modem Command Reference

MNP Operation

The HOME/OFFICE MODEM supports all of the preceding classes. The following AT Commands apply to the MNP protocol. Default values are highlighted.

Maximum MNP Block Size. Use this command to transmit smaller blocks of data in a reliable data link connection.

AT\A0 set maximum block size to 64 characters.

AT\A1 set maximum block size to 128 characters.

(DEFAULT)

AT\A2 set maximum block size to 192 characters. AT\A3 set maximum block size to 256 characters.

Transmit Break. When this command is entered during a non- MNP connection, a break signal is sent to the remote modem. The length of the break is 100 times the n parameter (1-9) in milliseconds. The default is 3.

AT\B3 (DEFAULT)

Modem to Modem Flow Control. Enables or disables modem to modem flow control during a normal mode connection. This command is ignored when error correction is selected.

AT\G0 Disables flow control (XON/XOFF) (DEFAULT)

AT\G1 Enables flow control (XON/XOFF)

HOME/OFFICE MODEM

Break Control. Determines the modem response when a BREAK is received from the DTE or the remote modem. The values of the parameters vary based on the three following conditions:

(1) When a break is received from the DTE during NORMAL or MNP mode:

AT\K0, 2, 4

modem enters command mode without sending

a break to the remote modem. AT\K1 modem clears the terminal and modem buffers

and sends a break to the remote modem. AT\K3 modem does not clear the buffers, but sends a

break to the remote modem.

AT\K5 modem sends a break to the remote modem in

sequence with any transmitted data. (DEFAULT)

(2) When a break is received from the remote modem during NORMAL mode:

AT\K0, 1 modem clears the terminal and modem buffers

and sends a break to the local DTE. AT\K2, 3 modem does not clear the buffers but sends a break

to the local DTE.

AT\K4, 5 modem sends a break in sequence with any data

being buffered. (DEFAULT)

(3) When a break is received from the DTE during DIRECT MODE mode:

AT\K0,1,3 modem sends a break to the remote modem and

enters command mode.

AT\K2, 4, 5

modem sends a break to the remote modem.

(DEFAULT)

Modem Command Reference

Error Correction Operating Mode. Selects the operating mode the modem uses while connected.

AT\N0 NORMAL (speed buffering) mode. AT\N1 DIRECT (pass-through) mode. AT\N2 RELIABLE LINK mode. Specifies error correction

for the modem-to-modem connection

AT\N3 AUTO-RELIABLE LINK mode. Attempts error-

correction connection but will fall back to normal

mode if unable to establish an MNP link.

(default)

AT\N4 LAPM error correction mode. AT\N5 MNP error correction mode

HOME/OFFICE MODEM

AT Commands for V.42/V.42bis

The following AT commands apply to the V.42/V.42bis protocol:

Compression Control. Determines whether or not modem will use data compression.

AT%C0 disables data compression AT%C1 enables MNP5 data compression negotiation AT%C2 enables V42bis data compression

AT%C3 enables both V.42bis and MNP5 data compression

(DEFAULT)

Auto-retrain. Determines whether or not the modem automatically monitors the line quality and requests a retrain when necessary.

AT%E0 disables line quality monitor auto-retrain

AT%E1 enables line quality monitor auto-retrain

AT%E2 enables line quality monitor auto retrain and auto

fall back/forward. (DEFAULT)

Report Received Signal Level.

AT%L 009 = -9 dBm, 010 = -10dBm, etc. all the way to 043

(-43 dBm)

Line signal and noise are determined by the unit of measurement dBm (decibel referenced to one milliwatt). To arrive at a signal/noise ratio, the noise level is subtracted from signal level in dBm.

Modem Command Reference

AT%Q 009 = -9 dBm, 010 = -10dBm, etc. all the way to 043

(-43 dBm)

Report Line Signal Quality. Returns a “high-order” byte of the calculated EQM (“eye quality monitor”). This can range from 0 to 255. When the value is 8 or greater, the modem will automatically retrain if enabled by the AT%E1 command. The value for a normal connection ranges from 0 to 2 and approaches 8 for a progressively poorer connection. Returns an OK result code.

000 to 007 no retrain 008 to 255 retrain performed if enabled by %E1.

HOME/OFFICE MODEM

AT+MS Command (Modulation Select)

This extended format command selects the modulation, optionally enables or disables automode, and optionally specifies the lowest and highest connection rates using from one to four subparameters. The command format is:

+MS=<mod>[,[<automode>][,[<min_rate>][,[<max_rate>]]]]

The default value as reported by the +MS? command is:

+MS=11,1,300,28800

Note 1: For 14400bps and lower speeds, the Nn command and S37 register can alternatively be used, in which case the +MS subparameters will be modified to reflect the Nn command and S37=x settings. Use of the Nn and S37=x commands is not recommended, but is provided for compatibility with existing communication software. (S37 is not updated by the +MS command).

Note 2: Subparameters not entered (enter a comma only or <CR> to skip the last subparameter) remain at their current values.

Reporting Selected Options

The modem can send a string of information to the DTE consisting of selected options: +MS?

The response is:

+MS:<mod>,<automode>,<min_rate>,<max_rate>

Example: +MS: 11, 1, 300, 28800 (shows default values)

Modem Command Reference

Reporting Supported Options

The modem can send a string of information to the DTE consisting of supported options using the following commands.

+MS=?

The response is:

+MS: (list of supported <mod> values), (list of supported <automode> values), (list of supported <min_rate> values), list of supported <max> rate values)

Example:

+MS: (0, 1, 2, 3, 9, 10, 11, 64, 69, 74), (0,1) (300-28800), (300-

28800)

Subparameter Definitions

1. <mod> = a decimal number which specifies the preferred

modulation (automode enabled) or the modulation (automode disabled) to use in originating or answering a connection. The options are as shown on the following page:

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Modulation

<mod>

Selected Possible rates (bps)

0 V.21 300 1 V.22 1200 2 V.22bis 2400 or 1200 3 V.23 1200* 9 V.32 9600 or 4800 10 V.32bis 14400, 12000, 9600, 7200, or 4800

11 V.34 33600, 28800, 26400, 24000,

21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800, or 2400 (DEFAULT)

64 Bell 103 300 69 Bell 212 1200 74 V.FC 28800, 26400, 24000, 21600,

19200, 16800, 14400

* For V.23, originating modes transmit at 75bps and receive at 1200bps; answering modes transmit at 1200bps and receive at 75bps. The rate is always

specified at 1200bps.

The modem may also automatically switch to another modulation (automode), subject to the following constraints:

n The modem may not be able to automatically switch from

the current modulation (specified by <mod>) to some other modulation. For example, there is no standard way to automode from Bell 103 to V.23.

n The DTE may disable automode operation

n The DTE may constrain the range of modulations available

(see <automode>).

by specifying the lowest and highest rates (see <min_rate> and <max_rate> below).

Modem Command Reference

2. <automode>=an optional numeric value which enables or

disables automatic modulation negotiation. Options are:

Option Selected

0 Automode disabled 1 Automode enabled

The default value is 1, which enables automode. Note, however, there are modulations for which there is no automatic negotiation (e.g., Bell 212 (<mod>=69).

For <automode> = 0 (automode disabled, i.e., fixed modulation):

a. If <max_rate> is within the rates supported by the selected

modulation, the selected rate is that specified by <max_rate>.

Example: +MS=9,0,1200,4800 selects V.32 4800bps fixed rate.

b. If <max_rate> is greater than the highest speed supported by

the modulation specified by <mod>, the starting rate is the highest rate supported by the selected modulation.

Example: +MS=9,0,2400,14400 selects V.32 9600 or 4800bps.

c. To emulate N0S37=x command sequence to select fixed mode

operation, specify the <max_rate> and <min_rate> both to be the same requested speed, and <mod> to be the modulation for that speed.

HOME/OFFICE MODEM

Example: +MS=11,0,16800,16800 selects V.34 16800bps fixed

mode (no comparable S37 command). +MS=10,0,12000,12000 selects V.32bis 12000bps

fixed mode (same as N0S37=10).

For <automode> = 1 (automode enabled; i.e., automatically selected speed and modulation).

a. If <max_rate> is greater than the highest rate supported by

the modulation specified by <mod>, the modem automodes down from the highest rate of selected modulation.

Example: +MS=10,1,1200,24000 selects automoding down

from V.32bis 14400bps.

b. To emulate N1S37=x sequence command, specify the

modulation and the rate to start automoding down from using <mod> and <max_rate>, respectively. Set <min_rate> to 300 to allow automoding all the way down to V.21 300bps.

Example: +MS=11,1,300,16800 selects automode starting at

V.34 16800bps (no comparable S37 command) +MS=10,1,300,12000 selects automode starting at

V.32bis 12000bps (same as N1S37=10).

3. <min_rate>= is an optional number which specifies the

lowest rate at which the modem may establish a connection. The value is decimal-coded in units of bps, e.g., 2400 specifies the lowest rate to be 2400bps. The default is 300 for 300 bps.

4. <max_rate>= is an optional number which specifies the

highest rate at which the modem may establish a connection. The value is decimal-coded in units of bps, e.g., 14400 specifies the highest rate to be 14400bps. The default is 28800 for 28800bps.

Modem Command Reference

S-Registers

This section defines the purpose of the modem registers, and sequentially lists the registers and describes their functions. These registers affect various operating characteristics and allow you to obtain information about the modem, as well as test the modem. Each register has a factory-set value, which you can read or change to fit your needs.

Reading a Register Value

To read the current value of a register, type:

AT Sn? [ENTER],

where n is a register number.

AT Sn? Sn? [ENTER] from the command mode.

To read the register values of S0 and S1, type

AT S0? S1? [ENTER].

The modem will display the first register value, a carriage return, the next register value, a carriage return, and OK or 0.

Changing a Register Value

To change a register value, use the Sn command (ATSn=v), where n is a register number and v is the new value you want to assign to the register. Type:

AT S0=3 [ENTER]

to have the modem automatically answer on the third ring.

HOME/OFFICE MODEM

The following table lists the modem’s registers and their functions.

Reg. Range Units Default Definition

S0 0-255 rings 0* Auto-answer S1 0-255 rings 0 Count incoming rings S2 0-255 rings 43 Escape character value. S3 0-127 ASCII 1 3 Carriage return character. S4 0-127 ASCII 10 Line feed character. S5 0-255 ASCII 8 Backspace character. S6 2-255 seconds 2 Wait time for Blind Dialing. S7 1-255 seconds 50 Wait for carrier after dial. S8 0-255 seconds 2 Pause time for dial delay. S9 1-255 seconds 6/10 Carrier detect. S10 1-255 seconds 14 (1.4) Lost Carrier to Hang Up

Delay. S11 50-255 95/100 DTMF tone duration (* in one-hundredth second increments) S12 0-255 seconds 50(1) Escape code guard time*. (*in one-fiftieth second increments) S13 Reserved. S14 Bit Mapped 138(8Ah) Bit mapped registers. S15 Reserved S16 Bit Mapped 0 Modem test options. S17 Reserved. S18 0-255 seconds 0 Test timer. S19 Reserved. S20 Reserved. S21 Bit Mapped 4(04h) Bit mapped registers. S22 Bit Mapped 117(75h) Bit mapped registers.

S23 Bit Mapped 54(36h) Bit mapped registers.

* For New Zealand, value must be between 2 and 5.

Modem Command Reference

Reg. Range Units Default Definition

S24 0-255 seconds 0 Sleep Inactivity Timer. S25 0-255 seconds 5 Asynchronous DTR Delay. S26 0-255 seconds 1 RTS to CTS Delay Interval. S27 Bit Mapped 9(09h) Bit mapped registers. S28 Bit Mapped 0 Bit mapped registers S29 0-255 ms 10 Flash Dial Modifier Time. S30 0-255 seconds 0 Disconnect Inactivity Timer. S31 Bit Mapped 2 S32 0-255 ASCII 17(11h) XON Character. S33 0-255 ASCII 19(19h) XOFF Character. S34-35 Reserved. S36 7 LAPM Failure Control S37 0 Line Connection speed

NOTE: Desired sub-V.34 line connection speed. If an invalid number is entered, the number is accepted into the register, but S37 will react as though the default value has been entered. See the +MS command for more modulation selections.

Bits 0-4:

0 = Attempt auto mode connection (DEFAULT) 1-3 = Attempt to connect at 300bps 4 = Reserved 5 = Attempt to connect at V.22 1200bps 6 = Attempt to connect at V.22bis 2400bps 7 = Attempt to connect at V.23 8 = Attempt to connect at V.32/V.32bis 4800bps 9 = Attempt to connect at V.32/V.32bis 9600bps 10 = Attempt to connect at V.32bis 12Kbps 11 = Attempt to connect at V.32bis14.4Kbps

12 = Attempt to connect at V.32bis 7200bps (ATF7)

HOME/OFFICE MODEM

Reg. Range Units Default Definition

S38 0-255 seconds 20 Delay Before Forced

Hangup. S39 Bit Mapped 3 Bit Mapped Registers. S40 Bit Mapped 104(68h) Bit Mapped Registers. S41 Bit Mapped 3 Bit Mapped Registers. S42-45 Reserved. S46 136 or 138 138 Data Compression Control.

NOTE: 136 enables error correction with no compression; 138 enables error correction WITH compression.

S48 0, 7, 128 7 V.42 Negotiation.

NOTE: 0 disables negotiation and proceeds with LAPM; 7 enables negotiation; and 128 disables negotiation and proceeds with fallback action specified in S36. The default for S36 is to attempt an MNP connection.

S49-81 Reserved. S82 3, 7, 128 128(40h) Break Handling Option. S86 0-255 NA Connection Failure Cause

Code. S91 0 to -15dB m 10 PSTN Transmit Level. S92 0 to -15dB m 10 Fax Transmit Level.

Modem Command Reference

Reg. Range Units Default Definition

S95 Bit-Mapped 0 Extended Results Codes.

NOTE: Bit values are defined as follows for S95:

0 = CONNECT CODE indicates DCE speed instead of DTE

speed.

1 =Append ARQ (automatic repeat request) to verbose

CONNECT XXXX result code if protocol is other than

none. 2 =Enable CARRIER XXXX result code. 3 =Enable PROTOCOL XXXX result code. 5 = Enable COMPRESSION result code.

Bits 4, 6, and 7 are reserved.

HOME/OFFICE MODEM

Result Codes

Result Numeric Code Value Description

OK 0 CONNECT 1 Connection made at 300 bps. RING 2 Modem detected an incoming call. NO CARRIER 3 Modem lost or could not detect a remote

ERROR 4 CONNECT 5 Modem established a connection 1200 at

1200 1200bps. NO 6 Modem did not detect a dial tone within 5

DIALTONE seconds after going off-hook. BUSY 7 Modem detected a busy signal.

Modem successfully executed a command line.

carrier signal within the Register S7 time. Modem found an error in the command line.

NO ANSWER 8 Five seconds of silence was not detected

when using the @ command in the dial command line.

CONNECT 9 Modem established a connection at 600 bps. 0600

CONNECT 10 2400

CONNECT 11 Modem established a connection at 4800 4800 bps.

CONNECT 12 Connection made at 9600 bps. 9600

Modem established a connection at 2400 bps.

Modem Command Reference

Result Numeric Code Value Description

CONNECT 13 Connected as data modem during an 7200 answer.

CONNECT 14 Connection made at 12000 bps. 12000

CONNECT 15 Connection made at 14400 bps. 14400

CONNECT 16 Connection made at 19200 bps. 19200

CONNECT 17 Connection made at 38400 bps. 38400

CONNECT 18 Connection made at 57600 bps. 57600

CONNECT 19 Connection made at 115,200 bps. 115200

CONNECT 22 Modem returns this result code when upon 75TX/1200RX establishing a V.23 originate connection

when the modem has been instructed to report the DTE speed to the DTE upon connecting.

CONNECT 23 Modem returns this result code when upon 1200RX/75RX establishing a V.23 answer connection

HOME/OFFICE MODEM

when the modem has been instructed to report the DTE speed to the DTE upon connecting.

Result Numeric Code Value Description

DELAYED 24 For X4; when a call fails to connect and the

number dialed is ‘delayed’ due to country blacklisting requirements.

BLACKLISTED 32

For X4; when a call fails to connect and the

number dialed is considered ‘blacklisted’. FAX 33 A fax modem connection is established. DATA 35 A data modem connection is established. CARRIER 40 Carrier rate of 300 bps.

300 CARRIER 44 V.23 backward channel has been detected.

1200/75 CARRIER 45 V.23 forward channel has been detected

75/1200 CARRIER 46 Carrier rate of 1200 bps.

1200 CARRIER 47 Carrier rate of 2400 bps.

2400 CARRIER 48 Carrier rate of 4800 bps.

4800 CARRIER 49 Carrier rate of 7200 bps.

7200 CARRIER 50 Carrier rate of 9600 bps.

9600

Modem Command Reference

Result Numeric Code Value Description

CARRIER 51 Carrier rate of 12000 bps. 12000

CARRIER 52 Carrier rate of 14400 bps. 14000

CARRIER 53 Carrier rate of 16800 bps. 16800

CARRIER 54 Carrier rate of 19200 bps. 19200

CARRIER 55 Carrier rate of 21600 bps 21600

CARRIER 56 Carrier rate of 24000 bps 24000

CARRIER 57 Carrier rate of 26400 bps. 26400

CARRIER 58 Carrier rate of 28800 bps. 28800

COMPRESSION: CLASS 5 and COMPRESSION message reporting has

COMPRESSION V.42bis COMPRESSION message reporting has been

66 The modem has connected in MNP class 5

been enabled.

67 The modem has connected in V.42bis and

enabled.

HOME/OFFICE MODEM

Result Numeric Code Value Description

COMPRESSION: NONE compression and COMPRESSION message

PROTOCOL: 76 Modem has connected without any form of NONE* error connection.

PROTOCOL: 77 Modem has connected in the V.42 LAPM LAPM* mode of error correction.

PROTOCOL: 80 Modem has connected in the MNP mode of ALT* error correction.

PROTOCOL: 81 Modem has connected in the MNP10 mode. ALT* CELLULAR

* PROTOCOL message reporting has been enabled.

69 The modem has connected without data

reporting has been enabled.

+FCERROR +F4 Fax carrier error.

Modem Command Reference

Appendix D: Servicing Your Boca Product

If your HOME/OFFICE MODEM requires service, first contact the authorized dealer from whom you purchased the modem. If the dealer is unable to assist you, and you must contact Boca Research, Inc., please follow the instructions below.

Our electronic BBS is available 24 hours a day at (561) 241-1601 and will support data transmission speeds up to 28.8Kbps with settings of N, 8, 1. Once your modem is functional, the BBS may be helpful (especially during off hours) if you have a question about product settings, or if you wish to download special software or utilities.

If the Troubleshooting section (Section Five) did not resolve your problem, you may call our technical support staff for assistance. If you haven’t referred to the Troubleshooting section, do so now.

NOTE: CALLING TECHNICAL SUPPORT WITHOUT COMPLETE AND ACCURATE INFORMATION CONCERNING YOUR PROBLEM MAY BE BOTH TIMECONSUMING AND FRUSTRATING FOR YOU.

1. When calling Boca Research Technical Support, have the following information available:

n Board or external unit name and part number n Computer manufacturer n Computer Model n Peripherals in system n Operating system and version

HOME/OFFICE MODEM

If you suspect a problem with a specific program or software package, make note of the name, version or release number, and manufacturer of the software.

2. Call our Technical Support Department between the hours of 8:00 a.m. and 6:30 p.m. EST Monday through Friday at (561) 241-8088. A technician will be available to discuss the problem(s) you are experiencing.

If factory service is required, you will be given a Return Merchandise Authorization (RMA) number. Please place this number on the outside of the package when you return the item(s) for service and reference it on any correspondence included in the package. Boca Research, Inc. will return any product which is not accompanied by an RMA number.

3. Refer to the Warranty Statement if the product is covered under the five-year Boca Research, Inc. Limited Warranty.

4. Certain parts will not be covered under the Boca Research, Inc. Limited Warranty. Dealer installed parts are warranted by the dealer. Parts which you have installed yourself are covered only by the supplier’s warranties. In these cases, Boca Research, Inc. can identify which parts are defective, but will not replace such parts until specific written authorization is received from you. The cost of parts and labor involved in making such repairs will be billed to you C.O.D.

5. When sending the HOME/OFFICE MODEM to Boca Research, Inc. for repairs, please be sure to include:

Servicing Your Boca Product

n the HOME/OFFICE MODEM (board or external case only) n a copy of the original invoice n your return street address (for UPS purposes) n phone number n the RMA number mentioned above

Package the product securely in a container equivalent to the original packaging, and insure the package to protect against loss or damage during transit. Shipping charges must be prepaid; C.O.D. shipments will not be accepted. Please use the address below for all correspondence:

Boca Research, Inc.

RMA Department - RMA # _____________

1601 Clint Moore Road

Boca Raton, FL 33487-2841

6. If the repairs performed on your modem were covered by the warranty, Boca Research, Inc. will return it prepaid via UPS.

HOME/OFFICE MODEM

Appendix E: Warranty Information

Limited Warranty

Boca Research, Inc. (BRI) warrants to the original buyer of this BRI product that the hardware is free of defects in materials and workmanship for a period of five (5) years from the date of purchase from BRI or its authorized dealer. Should the product fail to be in good working order at any time during the five-year period, BRI, will at its option, repair or replace this product as described below. This warranty does not cover defects resulting from misuse, abuse, negligence, accident, repairs, or alterations made by either the customer or another party. Boca Research reserves full rights to determine whether a defective product falls into this category.

The entire risk as to the quality and performance of the product rests with the customer. Any written or oral information or advice given by Boca Research dealers, distributors, agents, or employees will in no way increase the scope of this warranty. This warranty applies only to the product described in this manual and not to any other value-added software which may be included.

All products will be serviced and returned via UPS-ground at no charge to customers.

All customers are required to demonstrate proof of purchase when requesting a Return Merchandise Authorization (RMA). The period of service commences on the date of purchase. A copy of the sales slip must be included with the returned merchandise.

Products which require Limited Warranty service during the warranty period should be delivered to BRI at the address in the Appendix (Servicing Your Boca Product) with proof of purchase and the Return Merchandise Authorization (RMA) number provided by BRI Technical Support. Refer to the Appendix in your manual. Replacement parts or complete products will be furnished on an exchange basis only. Replaced parts and/or products become the property of BRI.

If the returned product is sent by mail, the purchaser agrees to prepay shipping charges, insure the product or assume the risk of loss or damage which may occur in transit, and to use a shipping container equivalent to the original packaging. ALL EXPRESS AND IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS OF PURPOSE FOR THE PRODUCT ARE LIMITED IN DURATION TO THE ABOVE FIVE- AND ONE-YEAR PERIODS, RESPECTIVELY.

UNDER NO CIRCUMSTANCES (WHETHER BASED IN CONTRACT OR TORT) SHALL BOCA RESEARCH BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS AS A RESULT OF THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR DISRUPTION OF ITS PRODUCTS.

Boca Research reserves the right to make periodic changes or enhancements to any Boca Research product without prior notification, but has no obligation to modify or update products once sold.

This warranty gives you specific legal rights, and you have other rights which may vary from state to state. This warranty is valid only in the United States.

Modem Command Reference

Glossary

A algorithm. A formula or procedure which employs various methods

defining how data is to be used to give a prescribed result. analog signals. Signals which can vary over a continuous range (e.g.,

the human voice over conventional telephone lines). Analog circuitry is more subject to distortion and noise, but it is more capable of handling complex signals than are digital signals which can have only discrete values.

ARQ. Automatic Retry ReQuest for retransmission. A type of communications link where the receiver asks the transmitter to resend a block of data when errors are detected.

ANSI. American National Standards Institute. A non-profit, private industry association which governs most USA-standards setting agencies.

ASCII. Acronym for American Standard Code for Information Interchange. ASCII is an ANSI character set. The standard ASCII character set consists of 128 decimal numbers (0-127) for letters of the alphabet, numerals, punctuation marks, and common special characters. The extended ASCII character set extends to 255 characters and contains special mathematical, graphics, and foreign characters.

asynchronous communications. A method of transmission in which one character is sent one bit at a time; also referred to as serial transmission.

automode. Capability to automatically select the highest possible line speed. Factors for highest possible line speed include: ITU-TSS compliance, common capabilities of both modems and telephone line quality.

B Bell standards. Refers to the U. S. modulation protocol standards

developed by the former AT&T Bell Systems such as Bell 103 (300bps transmission) and Bell 212A (1200bps transmission).

HOME/OFFICE MODEM

bit-mapped registers. An S-register which contains multiple bitoriented values. Example: the value of S22 is the sum of the bit values which you select (bits 0-1: speaker volume/value: 0-3; bits 2-3: speaker control/value: 0-3; bits 4-6: limit result codes/value: 0, 4-6, 7).

blind dialing. An automated process whereby the modem goes offhook and dials without waiting for a dial tone. This is prohibited in many countries.

block transfer control. Determines whether or not the modem uses block or stream mode during an MNP connection. In stream mode, MNP sends data frames in varying length. Block mode sends fixed data frames of 256 characters and is selected with the MNP-based \L command.

bps. bits per second. break handling. Determines how the modem responds when a

BREAK signal is received from either the DTE (Data Terminal Equipment or computer/terminal) or the remote modem. This is controlled by the MNP-based AT extended command \K. A break signal is represented on the communications line by a steady space signal for a significant length of time. Break signals may be activated from the keyboard by pressing the BREAK key or the control (CTRL) and C keys.

C CCITT. Consultative Committee for International Telephone and

Telegraph. This advisory organization is part of the ITU (International Telecommunication Union) which is an agency of the United Nations. Organization recently renamed International Telecommunications Union-Telecommunications Standards Sector (ITU-TSS)

command mode. The modem is in command mode when it is turned on or reset, when it loses its connection to a remote modem, when it is in on-line mode, or when escape characters (+++) are typed. To transmit data, the modem must be in data mode. The modem does not transmit data when in command mode. communications protocol. A set of procedures which controls how a data communications network operates.

D DCD. Data Carrier Detect. Indicates to the terminal device that the

modem is receiving a valid carrier signal from a remote modem. The carrier is a tone at a specified frequency.

DCE. Data Communications Equipment. The local and/or remote modem. A DCE is usually connected to a DTE.

DTE. Data Terminal Equipment. The computer or terminal, either local (yours), or the remote (the one you’re communicating with). A DTE is usually connected to a DCE.

DTR. Data Terminal Ready. The computer issues this signal to the attached modem indicating that it is ready to receive data.

data compression. A technique that examines transmitted data for redundancy and replaces strings (groups) of characters with special codes which the receiving modem interprets and restores to its original form. Transmission of compressed data results in shorter connect times and hence cost savings for connect charges. Data compression is sometimes called “source encoding”.

data mode. The modem is in data mode when a connection has been established with a remote modem and sends a CONNECT response confirming the connection. User data may then be transmitted or received.

dial modifier. Dial modifiers are special characters appended to the ATD command which instruct the modem how to place a call.

digital signal. A discrete signal which can only take on one of several (usually only two) discrete levels in contrast to analog signals which can take a continuous range of levels.

E error detection and correction. The transmitting modem attaches a

special pattern (called a frame check sequence) calculated according to a prescribed algorithm from user-defined data to the end of a block of data. The receiving modem performs the same algorithm and compares it to the one with the transmitted data. If these match, then the block of data has been received correctly. If not, the block of data is re-transmitted until no errors are detected.

escape sequence. Also referred to as the escape command. This special command is entered as three plus symbols (+++) and places the modem in command mode and interrupts user data transmission, but does not terminate the data connection. This allows the entering of commands while the connection is maintained.

HOME/OFFICE MODEM

extended AT-command. Extended commands were developed to provide greater functionality and control over modem operations than is available from the basic AT command set.

F fax mode. The modem is in fax mode when, through use of fax

communications software, it can send and receive faxes, print and display fax files, convert files to fax-files, and set certain fax-related features. Note: the modulation protocol used by the modem in fax mode is also different from the usual data mode modulation.

flow control. Compensates for the difference between the rate at which data reaches a device and the rate at which the device processes and transmits. This is controlled by the extended AT command &K. The two common types of flow control are RTS/CTS signaling (a hardware based method, employing an electrical signal) and XON/XOFF (a software-based method using standard ASCII control characters to pause or resume transmission).

full-duplex. Two-way simultaneous transmission between modems, which may occur via a four-wire circuit on a leased line, or with a two-wire connection when the frequency bandwidth is divided into two distinct channels, or when echo cancellation is employed (e.g., Bell 103, 212, and V.22 use frequency division, while V.32 uses echo cancellation).

G guard tone. Guard tones are used in the United Kingdom and other

countries. This requires that the modem transmit an 1800-Hz tone after it sends an answer tone. The guard tone is controlled by the &G command. Guard tones are not used in the U.S.A.

H half-duplex. Signal flow in both directions, but only one way at a

time with each modem alternating between send and receive. Hayes-compatible. Hayes Microcomputer Products, Inc. developed

the AT command set which has become a de facto industry standard. Hayes commands are always initiated with an AT (attention code) prefix.

hook flash. The dial modifier “!” causes the modem to go on-hook (hang-up) for one-half second. Also controlled by the ATH command.

L LAPM. Link Access Protocol Modem. A V.42 ARQ type of error

correction protocol which is controlled by S-Register 46, where LAPM may be activated with or without V.42bis data compression.

leased line. Also referred to as a private line. A leased line is obtained from a communications company (carrier) to provide a transmission medium between two points. The line consists of a permanent dedicated circuit between two points, or to set of previously arranged points. The cost of the line is usually based on the distance between locations. This is in contrast to switched or dial-up lines, which can be connected to any point on the network.

line modulation. The means by which a carrier is varied to represent a signal carrying information. In a modem, the user’s digital data is used to modulate the modem’s transmitter’s carrier or carrier to allow the digital signal to be carried over analog facilities.

long space disconnect. Determines whether or not modem disconnects when it receives a continuous break from a remote modem. Controlled by the ATY command.

loopback tests. There are four types of loopback tests which are as follows: (1) the local digital loopback tests the operation of the DTE, including whether or not data is leaving the terminal or computer port; (2) the local analog loopback tests the digital and analog circuits of the modem; (3) the remote digital loopback checks the operating condition of the line and remote modem; (4) the remote analog loopback tests the line to the remote modem.

M MNP. Microcom Networking Protocol. A series of data

communications protocols developed by Microcom for full-duplex, error-free communications.

make/break ratio. The &P command controls the ratio of the off-hook (make) to on-hook (break) interval used by the modem when it pulse dials. &P0 selects a 39%/61% make/break ratio for use in the U.S. &P1 selects a 33%/67% make/break ratio for use in the United Kingdom and Hong Kong. The &P command is NOT allowed in some countries.

HOME/OFFICE MODEM

modulation handshake. Also referred to as Automode Enable and is controlled by the ATN command. This determines whether or not the modem must connect at a particular speed, or allow connection at any speed supported by both modems.

N negotiation fallback. Controlled by S-Register 36 as part of the V.42

protocol. Setting this register indicates what action to take when a desired connection cannot be made (e.g., hang-up, direct mode connect, normal mode connect).

non-volatile RAM. Also NVRAM. Random access memory whose data is retained when power is turned off. This is especially useful for modems to store user-defined default configuration settings and frequently used telephone numbers. This information would be loaded into modem RAM at power-up.

O on-line state. Same as data mode. To transmit or receive data, the

modem must be in the on-line state. When placing a call, the modem is put on-line with the dial command.

P PBX. Private Branch Exchange. A telephone switch at a customer site. pulse dialing. Also referred to as rotary dialing, i.e., dialing with the

older-style rotary dial wheel. The dial modifier ATP sets the modem to pulse dialing, which is the default method as opposed to tone dialing (push-button touch-tone) which is enabled with ATT. All telephone exchanges will accept older-style pulse dialing and most exchanges will accept modern tone-dialing. Tone dialing is faster and more reliable since mechanical relays and their inherent failure mechanisms are avoided.

R result code. A response sent by the modem after executing a

command. The response reports the modem’s status or the progress of a call and can take the form of either digits (numeric) or words (verbose). Issuing a V1 command enables word responses. A V0 (Vzero) command enables numeric responses. The Q1 command disables their use entirely. Example: “OK” (word), or 0 (numeric) indicates that the modem successfully executed a command.

retrain. An adjustment process performed when one of the modems detects signal distortion or line noise which threaten data integrity.

RTS/CTS. Request to Send/Clear to Send. RTS and CTS are two control signal lines between the modem (DCE) and terminal (DTE) which allow the terminal to control the flow of information. See also flow control.

S sleep inactivity timer. Determines the length of time the modem

operates in normal mode with no activity before entering low-power “sleep” mode.

split-speed direction. Determines which direction (transmit or receive) has the 75bps channel and which has the 1200bps channel, but is only active if the \W command is set to 1. Used with V.23 modulation only.

standard AT-command. The basic AT command set, originated by Hayes Microcomputer Products, Inc.

synchronous clock source. Applies to synchronous modem operations and is set with the &X command. The command specifies the clocking source referred to as the transmit signal element timing. This can be controlled by either the modem or the terminal.

synchronous communications. A method of transmission in which data bits are sent continuously at the same rate under the control of a fixed frequency clock signal.

T touch-tone dialing. Push-button tone dialing as used on

contemporary phone sets. The dial modifier ATT sets the modem to “tone” mode. Tone dialing is faster and more reliable than older-style pulse dialing.

X XON/XOFF. XON and XOFF are the names of two different control

characters. See also flow control.

Acknowledgements

The Complete Modem Reference. Gilbert Held. John Wiley & Sons, Inc. Upgrading and Repairing PCs. (Second Edition). Que Corporation.

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Manual Part No. 9378

Rev. 1.0

Boca HOME OFFICE, HOME OFFICE MODEM 33.6 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual