Motorola V.3600 User Manual

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V.3600

Modem User’s Guide

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TALK/DATA

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V.3600

Copyright

the products described in this manual as well as to revise this publication at any time and without notice to any person of such revision or change. All rights reserved. No part of this public ation may be reproduced, transcribed, stored in an electronic retrieval system, translated into any language or computer language, or be tran sm itted in any form whatsoever without the prior written consent of the publisher. For additional information contact:

Motorola ISG, Inc. 20 Cabot Boulevard Mansfield, Massachusetts 02048 USA

Trademarks

 and Motorola are registered trademarks of Motorola, Inc. The following are trademarks or registered trademarks of their respective companies or organizations.

Product Company/Organization

MNP Microcom Incorporated

Notice

All titles, versions, trademarks, claims of compatibility, etc., of hardware and software pr oducts mentioned herein are the sole property and responsibility of the respective vendors. Motorola makes no endorsement of any particular product for any purpose, nor claims responsibility for its operation and accuracy.

Updates

Check Motorola Web sites as listed under “Service and Support” at the end of this User’s Guide for the latest updates to our products.

ii V.3600

Regulatory Information

FCC Requirements

This equipment complies with FCC rules Part 68. Located on the equipment is the FCC Registration Number and Ringer Equivalence Number (REN). You must provide this information to the telephone company if requested.

The Registration Number and REN is inscribed on the printed circuit board on insert cards, or on a label attached to either th e chassis bo ttom or metal end-plate on standalone or rack models. The FCC requires that these numbers be prominently displayed on an outsi de s urfa ce of t h e equi p ment .

The REN is used to determine the number of devices you may legally connect to your telephone line. In most areas, the sum of the REN of all devices connected to one line must not exceed five (5.0). Contact your telephone company to determine the maximum REN for your calling area.

A variety of Universal Service Ordering Code (USOC) telephone wall jacks are available for different types of devices or services. The USOC jack required for this unit is RJ11/RJ41S/JM8.

The telephone company may change technical operations or procedures affecting your equipment. You will be notified of changes in advance to give you ample time to maintain uninterrupted telephone service.

If you experience trouble with this telephone equipment, please contact

Motorola

20 Cabot Boulevard

Mansfield, Massachusetts 02048

Telephone (800) 544-0062

for information on obtaining service or repairs. The telephone company may ask that you disconnect this equipment from the network until the problem has been resolved. If your equipment conti nu es to disrup t th e network the telephone company may temporarily disconnect service. If this occurs you will be informed of your right to file a complaint with the FCC.

V.3600 iii

Regulatory Information

This equipment may not be used on coin service provided by the telephone company. Connection to party lines is subject to state tariffs.

An FCC compliant telephone cord and modular plug are provided with this equipment, which is designed to connect to the telephone network or premises wiring using a compatible modular jack that is Part 68 compliant. See installation instructions in Chapter 2, Installation for details.

FCC Fax Branding Requirements

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

Programming of this information is a function of the fax software which runs on your computer. In order to program this information, please consult the docu mentation provided with your fax software.

FCC Part 15 Declaration Of Conformity

FOR HOME OR OFFICE USE Model Name:

V.3600, 115 VAC version only

Caution

This equipment uses, generates, and can radiate radio frequency energy interf ering with radio communicat ions if not installed and used according to the instruction manual. It has been tested and complies with the limits for a Class B computing device according to FCC Rules, Part 15. Operation of this equipment in a residential area may cause interference. If it does, you must correct the cause of the interference.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

iv V.3600

Regulatory Information

Shielded Cables

This product has been tested and complies with FCC limits for a Class B computing device. Testing was done with shielded computer cables Using unshielded cables could cause your system to emit excess radio frequency, increasing the chance of interference. To comply with FCC regulations it is necessary to use shielded computer cables installation.

FOR OFFICE USE ONLY Model Name:

V.3600, all other versions

with your

Caution

This equipment uses, generates, and can radiate radio frequency energy interfer ing with radio communication s if not installed and used according to the instruction manual. It has been tested and complies with the limits for a Class A computing device according to FCC Rules, Part 15. Operation of this equipment in a residential area may cause interference. If it does, you must correct the cause of the interference.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Shielded Cables

This product has been tested and complies with FCC limits for a Class A computing device. Testing was done with shielded computer cables Using unshielded cables could cause your system to emit excess radio frequency, increasing the chance of interference. To comply with FCC regulations it is necessary to use shielded computer cables installation.

V.3600 v

with your

Regulatory Information

Special Requirements For Canada

Certain requirements exist for data communication products manufactured for use in Canada. Principle among these requirements is the application of the IC label as described below. However , certain data communication products do not require the IC label nor adherence to IC requirements. If this is the case the IC label will not be affixed to the units.

Industry Canada (IC) Requirements

IC labels are affixed to each unit sold in Canada. This label has the certification number for that particular unit. The numbers are different for each model.

The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. IC 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 equ ip ment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment. For their own protection users should ensure 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.

vi V.3600

Regulatory Information

Caution: Users should not attempt to make install a tion connections themselves, but should contact the appropriate electric inspection authority or electrician.

Ringer Equivalence Number

The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed five (5).

CANADIAN EMISSION REQUIREMENTS (V.3600, 115 Vac)

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

CANADIAN EMISSION REQUIREMENTS (V.3600, other versions)

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

V.3600 vii

Regulatory Information Chapter 1. Introduction

Shelf-Mount Units ..................... .... ......................... .... ... ....................... 1-1

Features ................................................................................................. 1-2

Data Mode ....................................................................................... 1-2

Fax Mode ........................................................................................ 1-3

Software ................................................................................................ 1-3

Communications Software ....................................... .... .... ............... 1-3

Class 1 Fax Communications Software .......................................... 1-3

Internet Browser ................................. .......................... .... ... ............ 1-3

Description ........................................................................................... 1-4

Functional ........................................................................................ 1-4

Physical............................................................................................ 1-4

RM16M Unit ................................................................................... 1 -6

Chapter 2. Installation

Electrical Installation ............................................................................ 2-1

AC Power Connection ..................................................................... 2-1

DC Power Connection ..................................................................... 2-1

DTE Connection.................................................................................... 2-2

T el epho n e Line Con nec tio n .................. ... .......................... .... ... ............ 2-6

Dial Mode: PSTN Connection (DIAL jack) ................................... 2-6

Leased Line Connection (TELSET/LEASED LINE Jack).............. 2-7

Shelf-Mount RM16M V.3600 Installation ........................................... 2-9

Chapter 3. Getting Started

Option Selection ................................................................................... 3-1

Power-Up .............................................................................................. 3-1

Placing a Call ........................................................................................ 3-2

Dialing with a Standard Telephone ................................................. 3-2

Autodialing from Front Panel ......................................................... 3-2

Autodialing from a Terminal with the AT Commands..................... 3-2

Answering a Call .................................................................................. 3-3

Autoanswering ................................................................................ 3-3

Answering Manually........................................................................ 3-3

Answering from Terminal with AT Command Set .......................... 3-3

Ending a Call......................................................................................... 3-3

Ending a Call Using the Front Panel ............................................... 3-3

Ending a Call from a Terminal with the AT Command Set ............ 3-3

Reasons for Call Termination .......................................................... 3-4

Chapter 4. Front Panel Operation

LED Descriptions.................................................................................. 4-1

LCD Menus ................ .... ......................... .... .......................... ... ............ 4-2

LCD Menu Operation .............................. .... .... ......................... .... ... ..... 4-2

Front Panel Security ............................................................................. 4-11

V.3600 ix

Contents (continued)

Chapter 5. AT Commands

Command Categories ........................................................................... 5-1

Operation Modes .................................................................................. 5-1

Offline Command Mode.......................................................... ... ..... 5-2

Online Command Mode .......................................................... ... .... . 5-2

Data Mode........................................................................................ 5-2

Sending Commands to the Modem ...................................................... 5-2

Creating a Command Statement — AT ........................................... 5-3

Autobaud ......................................................................................... 5-3

Guidelines for Creating Command Statements ............................... 5-3

Monitor Display .............................................................................. 5-4

Command Statement Buffer ............................................................ 5-4

Backspace Key ................................................................................ 5-4

Repeating a Command — A/ .......................................................... 5-4

Numbered Commands ..................................................................... 5-5

Group Commands ........................................................................... 5-5

Response Commands............................................................................. 5-5

Digit / Word Selection — V ............................................................ 5-6

Response Displays — Q ................................................................. 5-6

Negotiation Displays — W ............................................................. 5-6

Connect Message Codes — \V ....................................................... 5-6

Call Progress / Connect Speed Messages X .................................... 5-7

Number Code Application — *RC.................................................. 5-8

Response Number Codes / Messages............................................... 5-9

Dial Commands .................................................. .... .... ......................... . 5-13

Dialing — D .................................................................................... 5-13

Tone Dialing — T ........................................................................... 5-14

Pulse Dialing — P ........................................................................... 5-14

Insert Long Pause — , ..................................................................... 5-14

Wait for Second Dial Tone — W .................................................... 5-15

Hook Flash — ! ............................................................................... 5-15

Switching to Answer Mode after Dialing — R .......................... .... . 5-15

Remaining in Command Mode — ; ................................................ 5-15

Wait for 5 Seconds of Silence — @ ............................................... 5-16

Dialing a Stored Telephone Number — Sn...................................... 5-16

Autodial Number Location — *AUn .............................................. 5-16

Voice Calls ...................................................................................... 5-16

Switching from Voice to Data ......................................................... 5-17

Answering A Call ................................................................................. 5-17

Manual Answer ............................................................ .... ............... 5-17

AT Command Answer — A ............................................................ 5-17

Autoanswer — S0 ............ .... .... ......................... .... ......................... . 5-17

Caller ID — *ID .............................................................................. 5-17

Distinctive Ring — *DR .................... .... .... ......................... .... ... ..... 5-18

Terminal Interface Commands ............................................................. 5-19

Data Carrier Detect — &C............................................................... 5-19

Data Set Ready — &S...................................................................... 5-20

Data Terminal Ready — &D ........................................................... 5-20

Serial Port Ring Indicator (Pin 22) — \R ....................................... . 5-21

Request to Send / Clear to Send — &R .......................................... 5-21

DTE Controlled Fallback Rate (Pin 23) — *FB ............................. 5-22

General Commands............................................................................... 5-22

Changing from Data Mode to Command Mode — +++.................. 5-22

x V.3600

Contents (continued)

Chapter 5. AT Commands (Continued)

Local Character Echo — E ............................................................. 5-22

Online Character Echo — F ............................................................ 5-23

Hanging Up — H, H1 ........................ .... .... ......................... .... ........ 5-23

Fast Disconnect — H2, H3.............................................................. 5-23

EPROM Check — I......................................................................... 5-24

Speaker Volume L ........................................................................... 5-24

Speaker Control — M ..................................................................... 5-24

Return Online — O.......................................................................... 5-25

Long Space Disconnect — Y........................................................... 5-25

V.22 bis Guard Tones — &G........................................................... 5-25

Asynchronous / Synchronous Mode Selection — &M ................... 5-25

Make / Break Dial Pulse Ratio — &P ............................................. 5-26

Synchronous Transmit Clock Source — &X .................................. 5-27

V.34 Rate Selection Thresholds — *TH ......................................... 5-27

V.34 Asymmetric Bit Rates — *AS ................................................ 5-27

Modulation *MM ............................................................................ 5-27

Maximum DCE Speed — %B......................................................... 5-28

Minimum DCE Speed — %L ......................................................... 5-29

Auto Retrain — %E ........................................................................ 5-30

Automatic Rate Adaption — %R .................................................... 5-30

Manual Rate Adaption — *RR ............................................... ... .... . 5-31

Product Revision Level %V............................................................. 5-31

Online Quick Reference — $H ................................ .... ................... 5-32

Product Serial Number — $V.......................................................... 5-32

Talk / Data — *DA.......................................................................... 5-32

V.32 Fast Train — *FT .................................................................... 5-32

Incoming Call — *IC ...................................................................... 5-32

Line Current Disconnect — *LC .................................................... 5-32

Disable AT Command Set — *NT .................... ......................... .... . 5-33

Dial Line Transmit Level — *TDn ................................................. 5-33

Private Line Operation ......................................................................... 5-33

4-Wire Operation ............................................................................. 5-33

2-Wire Operation ............................................................................. 5-34

Dial Backup....................... .... ......................... .... ......................... .... . 5-35

Dial / Leased Line — &L ................................................................ 5-36

Dial Backup *DB ...................................... ... .... ......................... .... . 5-36

Return to Leased Line from Dial Backup — *LB........................... 5-36

Manual Dial Backup — *LD .......................................................... 5-36

Answer / Originate — *OR ............................................................. 5-36

Leased Line Transmit Level — *TLn ............................................. 5-36

Configuration Commands ..................................................................... 5-37

Configuration Profiles........................................................................... 5-37

Active Profile .................................................................................. 5-37

Stored Profile................................................................................... 5-37

Factory Profile ............................................... .... .... ......................... . 5-37

Storing a Configuration — &W....................................................... 5-38

Powerup Option Set — &Y ............................................................ 5-38

Load Factory Options — &Fn ......................................................... 5-39

Reset to Stored Configuration — Z ................................................ 5-39

Vie w Config ura tio n Pro file s/Receiv e d Signal Optio ns &V ........... . 5-40

Storing a Telephone Command Line — &Zx=n, *CNx,n, *ND .... 5-40

V.3600 xi

Contents (continued)

Chapter 5. AT Commands (Continued)

Retaining / Restoring Options — *RO .................... .... ................... 5-41

Soft Download Password — %P1, $Y ............................................ 5-41

Remote Configuration .......................................................................... 5-41

Remote Configuration Security ....................................................... 5-42

Remote Security Code — %P= ....................................................... 5-42

Entering Remote Configuration — %T=, &T ................................ 5-43

Enabling/Disabling Remote Configuration — *RA ....................... 5-43

Remote Configuration DTE Speed — *RB..................................... 5-44

Remote Configuration Format — *RF ........................................... 5-44

Remote Configuration Saving or Discarding Options — *RQ ....... 5-45

Chapter 6. Protocols

CCITT V.42 bis Error Control Protocol ............................................... 6-1

Reliable Mode ...................................................................................... 6-1

Auto-Reliable Mode.............................................................................. 6-2

Constant Speed Interface....................................................................... 6-2

Data Compression ................................................................................ 6-2

Normal Mode .................. .... ... .......................... ... .... ......................... .... . 6-2

Direct Mode .......................................................................................... 6-3

Flow Control ......................................................................................... 6-3

Protocol Commands............................................................... ... .... ........ 6-3

Disconnect Buffer Delay — Q%D ............................... .... ... ............ 6-4

Serial Port (DTE) Constant Speed — \J .......................................... 6-4

V.42 Optional Detection Phase — \M .............................. ... .... ... .... . 6-5

Operating Mode — \N..................................................................... 6-5

Auto-Reliable Fallback Character — %An ..................................... 6-6

Serial Port Flow Control — \Q ....................................................... 6-7

XON/XOFF Pass Through — \X..................................................... 6-8

Data Link Flow Control — \G ........................................................ 6-8

Break Control — \Kn ...................................................................... 6-9

Inactivity Timer — \T ..................................................................... 6-10

Maximum Reliable Block Size — \A ............................................. 6-10

Transmit Break / Set Break Length — \B ....................................... 6-11

Set Auto-Reliable Buffer — \C ................................ .... .... ............... 6-11

V.42bis Data Compression — %C .................................................. 6-11

Chapter 7. Test Mode Operation

T est Categ o rie s ............... ......................... .... .... ......................... .... ........ 7-1

Terminating a Test in Progress — Q&T ............................................... 7-2

Testing the Local Modem ..................................................................... 7-3

Local Analog Loopback — &T1 .................................................... 7-3

Local Analog Loopback with Self Test — &T8 ............................. 7-4

Testing the Remote Modem .................................................................. 7-4

Local Digital Loopback — &T3 ..................................................... 7-5

Grant/Deny RDL Request — &T4, &T5 ........................................ 7-5

Remote Digital Loopback — &T6 .................................................. 7-6

Remote Digital Loopback with Self Test — &T7 .......................... 7-6

Test Pattern — %T .......................................................................... 7-7

Bilateral Digital Test Enable / Disable — *DG............................... 7-7

DTE Controlled Remote Digital Loopback (Pin 21) — *RD ......... 7-8

DTE Controlled Local Analog Loopback (Pin 18) *LA ................. 7-8

xii V.3600

Contents (continued)

Chapter 8. Security

Autocallback Security .......................................................................... 8-1

Low Security Operation ....................................................................... 8-2

Operating without Low Security ..................................................... 8-2

Operating with Low Security .......................................................... 8-2

Remote Operation............................................................................ 8-2

Local Operation ............................................................................... 8-3

Passwords ........................................................................................ 8-3

LCD Indication of Security ............................................................. 8-3

Restrictions in Security Operation................................................... 8-3

Low Security Commands ..................................................................... 8-4

Set Password — $S=x...................................................................... 8-4

Changing a Password — $C=x, y ................................................... 8-4

Deleting a Password — $C=x, - ............................ ... .... ................... 8-4

Security Reset — $DR .................................................................... 8-4

Disabling Security — $D=x............................................................. 8-4

Security Status — $D?, $E? ............................................................ 8-4

Enabling Security — $E=x ............................................................. 8-4

High Security ................................. ... .... ......................... .... .... ............... 8-4

Compatibility.................................................................................... 8-4

Capacity ........................................................................................... 8-5

Operating without High Security .................................................... 8-5

Operating with High Security ......................................................... 8-5

Security Levels ..................................................................................... 8-5

Level 1: Password Only................................................................... 8-5

Level 2: Password with Callback..................................................... 8-5

Level 3: Password with Callback and Password Re-Entry ............. 8-5

Superuser............................................................................................... 8-6

Passwords ........................................................................................ 8-6

Default Passwords ............................................................................ 8-7

High Security Commands ..................................................................... 8-7

Enabling High Security — $EH=pw .............................................. 8-7

Disabling High Security — $D........................................................ 8-8

Setting Passwords — $Pn=pw$pw ................................................. 8-8

Set Security Levels — $Ln=m......................................................... 8-8

Set User Callback Number — $Cn=m ............................................ 8-9

Extended Features — $W ................................................................ 8-9

Display Extended Feature Status — $W? ....................................... 8-9

Display/Reset Illegal Access Attempt Counters — $M, $Mn, $M* 8-9

Factory Reset — $F=pw$pw ..................... ... .... ......................... .... . 8-10

Removing a User — $Rn................................................................. 8-10

Security Status — $E? .................................................................... 8-10

Display User Status — $S?.............................................................. 8-11

Verify User Information — $In, $IBn ............................................. 8-11

Request Superuser Privilege — $S=pw .......................................... 8-11

Local Logon Command — $n=pw ................................................. 8-11

Local Logoff Command — $$.................................. ....................... 8-11

Remote Logon Procedure — $n=pw .............................................. 8-12

V.3600 xiii

Contents (continued)

Chapter 9. Fax Operation

Fax Operation ....................................................................................... 9-1

Modem Initialization ............................................................................ 9-2

Fax Defaults........................................................................................... 9-2

Fax Autoanswer............................................................................... 9-2

Fax Associated Options ........................................................................ 9-3

Stored Fax Profile ........................................................................... 9-3

Class 1 Details....................................................................................... 9-3

Class 1 Commands................................................................................ 9-4

Dial Command — D ................... .......................... ... ....................... 9-4

Answer Command — A ........................................... ....................... 9-5

On Hook — H ................................................................................. 9-6

Off Hook — H1 .............................................................................. 9-6

Class 0 Operation — +FCLASS=0 ................................................. 9-6

Class 1 Operation — +FCLASS=1 ................................................. 9-6

Service Class Indication — +FCLASS? ......................................... 9-6

Service Class Capabilities — +FCLASS=? .................................... 9-6

Transmit Silence — +FTS=(Time)................................................... 9-7

Receive Silence — +FRS=(Time) ................................................... 9-7

Fax Transmit and Receiv e Mo des ................................ ................... 9-7

Facsimile Transmit — +FTM=(Mod) ............................................. 9-8

Facsimile Receive — +FRM=(Mod) .............................................. 9-8

HDLC Transmit — +FTH=(Mod) ................................................... 9-9

HDLC Receive — +FRH=(Mod) .................................... ............... 9-9

Test Supported Range of Values — +FTx=?, +FRx=? .................... 9-9

Class 1 Result Code — +FCERROR .............................................. 9-10

Fax Autoanswer — +FAA= ............................................................ 9-10

DTE Autobaud for Fax Autoanswer — *FR .................................. 9-10

Binary File Transfer ........ .... ......................... .... ... .......................... ... ..... 9-10

Chapter 10. Status Registers

S-Registers ............................................................................................ 10-1

S-Register Operation — Sn?, Sn?^ ...................................................... 10-3

Changing Register Values — Sn=v, Sn=^v ..................................... 10-3

Individual Bit Command — Sn . # =v ............................................ 10-4

Autoanswer — S0 ............ .... .... ......................... .... ......................... . 10-5

Ring Count — S1 ............................................................................ 10-5

Escape Character — S2 ................................................................... 10-5

End-of-Line Character — S3 .......................................................... 10-5

Line-Feed Character — S4 .............................................................. 10-5

Backspace Character — S5 ............................................................. 10-5

Pause Before Dialing — S6 ............................................................ 10-5

Pause for Ringback and Carrier Detection /

Wait for 2nd Dial Tone — S7 .................................................... 10-6

Pause Interval for Comma — S8 .................................................... 10-6

Carrier Detect Time — S9 .............................................................. 10-6

Lost Carrier Detect Time — S10 .................................................... 10-6

DTMF Tone Duration — S11 ......................................................... 10-6

Escape Sequence Pause — S12 ....................................................... 10-7

S13.................................................................................................... 10-7

Bit Mapped — S14 .......................................................................... 10-8

xiv V.3600

Contents (continued)

Chapter 10. Status Registers (Continued)

S15 ................................................................................................... 10-8

System Tests — S16 ........................................................................ 10-9

S17 ................................................................................................... 10-9

Test Timeout — S18 ....................................................................... 10-9

S19, 20 ............................................................................................. 10-9

Bit Mapped — S21 .......................................................................... 10-10

Bit Mapped — S22 .......................................................................... 10-10

Bit Mapped — S23 .......................................................................... 10-11

S24 ................................................................................................... 10-11

DTR State Recognition — S25 ....................................................... 10-11

RTS/CTS Delay — S26 .................................................................. 10-11

Bit Mapped — S27 .......................................................................... 10-12

Lookback Timer — S28 .................................................................. 10-12

Bit Mapped — S29 .......................................................................... 10-12

Bit Mapped — S30 .......................................................................... 10-13

S31 ................................................................................................... 10-13

Bit Mapped — S32 .......................................................................... 10-14

S33 ................................................................................................... 10-14

Bit Mapped — S34 .......................................................................... 10-14

DTR / Dial Backup Number to Dial — S35 ................................... 10-14

S36-S40 ........................................................................................... 10-14

Remote Configuration Escape Character — S41 ............................ 10-14

Remote Configuration Guard Time — S42 .................................... 10-15

S43.................................................................................................... 10-15

XON Character from DTE — S44 .................................................. 10-15

XOFF Character from DTE — S45 ................................................ 10-15

S46-48 ............................................................................................. 10-15

XON Character to DTE — S49 ...................................................... 10-15

XOFF Character to DTE — S50 ..................................................... 10-15

Dial Line Transmit Level — S51 .................................................... 10-15

Leased Line Transmit Level — S52 ............................................... 10-16

Automatic Rate Adaption Threshold — S53................................... 10-16

Flow Control — S54 ....................................................................... 10-16

S55 ................................................................................................... 10-17

V.42 Compression Control — S56................................................... 10-17

Bit Mapped — S57 .......................................................................... 10-17

Inactivity Timer — S58 ................................................................... 10-18

Break Control — S59 ...................................................................... 10-18

Bit Mapped — S60 .......................................................................... 10-18

DTE Options — S61 ....................................................................... 10-19

Disconnect Buffer Delay — S62 ...................................... ... ............ 10-19

Maximum Transmit Block Size — S63 .......................................... 10-19

Auto-Reliable Fallback Character — S64 ....................................... 10-20

S65-66 ............................................................................................. 10-20

Link Speed Status — S67 ............................................................... 10-20

S68 ................................................................................................... 10-20

DCE Independent Speed — S69 ............................................. ... .... . 10-21

Operating Mode — S70 ................................................................... 10-22

Operating Mode Status — S71 ..................... .......................... ... ..... 10-22

Bit Mapped — S72 .......................................................................... 10-23

Password Timeout — S73 ............................................................... 10-23

V.3600 xv

Contents (continued)

Chapter 10. Status Registers (Continued)

Callback Delay — S74 .................................................................... 10-23

Callback Retry — S75 .................................................................... 10-23

Callback Retry Delay — S76 .......................................................... 10-24

Lockout Threshold — S77 .............................................................. 10-24

Autocallback Timer — S78 ............................................................. 10-24

Break Length — S79 ................................................ .... .... ............... 10-24

Serial Port or DTE Speed — S80 .................................................... 10-25

Minimum DCE Speed — S81 ......................................................... 10-26

Negotiation Status — S82 ............................................................... 10-26

S83 ................................................................................................... 10-26

Bit Mapped — S84 .......................................................................... 10-26

S85-S87 ........................................................................................... 10-27

Modulation Type S88 ...................................................................... 10-27

S89-S90............................................................................................ 10-27

Current Modulation S91 .................. ......................... .... ................... 10-27

S92 - S94 ......................................................................................... 10-28

V.34 Settings — S95 ....................................................................... 10-28

V.34 Asymmetric Settings — S96 .................................................. 10-28

Bit Mapped — S97........................................................................... 10-28

S98- S100 ........................................................................................ 10-28

Chapter 11. V.25 bis Autodialer

Autodialer Command Strings and Parameters ..................................... 11-2

Software Guidelines ............................................................................. 11-2

Invalid Responses ............................................................................ 11-3

Dial Parameters ............................. ... .... ......................... .... .... ............... 11-4

V.25 bis Commands and Responses ..................................................... 11-5

Dial Command — CRN nn...n .......................... .... ... .... .... ... ............ 11-5

Program Number Command — PRN a;nn...n ....... ... .... .... ............... 11-6

Intermediate Call Progress Response .............................................. 11-6

Dial Stored Number — CRS a ........................................................ 11-6

Request List of Stored Numbers — RLN ....................................... 11-7

Disregard Incoming Call — DIC .................................................... 11-7

Connect Incoming Call — CIC ....................................................... 11-8

Redial Last Number — CRR n ....................................................... 11-8

Link Number by Address — PRL a;b ............................................. 11-8

Request List of Delayed Numbers — RLD .................................... 11-9

If there is no response to the RLD command,

there are no numbers on the delayed call list. ....................... .... . 11-10

For numbers on the d e layed call list, the r esponse

structure is as follows: ...................... .......................... ... .... ........ 11 -10

Request List of Linked Numbers — RLL........................................ 11-10

Request List of Version — RLV ..................................................... 11-11

Modem Options Command — PRO xxx;yy;0;0... .......................... 11-11

Save Current Settings — PRK ........................................................ 11-13

Restore Factory Settings — PRP n ................................................. 11-13

Request List of Stored Options — RLO xxx; yy ............................ 11-14

Options ................................................................................................. 11-15

xvi V.3600

Contents (continued)

Chapter 12. Maintenance

General ................................................................................................. 12-1

Fuse Replacement ................................................................................. 12-1

Maintenance ......................................................................................... 12-1

Calling Technical Support .................................................................... 12-2

Appendix A. Specifications

Size ....................... .... .... ... .......................... ... .......................... ... .... . A-1

Environmental Conditions ............................................................... A-1

Power Requirements ....................................................................... A-1

T el epho n e Line ......................... ... .... ......................... .... ................... A-1

Digital Interface .............................................................................. A-1

Modem Data Rates .......................................................................... A-2

Fax Rates ......................................................................................... A-2

Modulations ..................................................................................... A-2

Fax Modulation ............................................................................... A-2

Internal Transmit Clock Frequency ................................................. A-2

External Transm it Clock Fre qu enc y ................. .... ......................... . A-2

Transmit Output Level ............................... ... .... ......................... .... . A-2

Operation ......................................................................................... A-2

Carrier Detect Level ........................................................................ A-3

Telco Connection ............................................................................ A-3

Testing ............................................................................................. A-3

Line Equalization ............................................................................ A-3

RTS/CTS Delay ............................................................................... A-3

Link Layer Protocols........................ ... .......................... .... ............... A-3

Appendix B. Phone Jack Descriptions

DIAL Pin Functions ......................... .... ... .... .......................... ... ............ B-1

TELSET/LEASED LINE Pin Functions............................................... B-1

Appendix C. Hardware Options

Jumper Option Selection ...................................................................... C-1

Removing the Cover ............................................................................. C-1

Ground Option Jumper ............................................. .... .... ............... C-4

Replacing the Cover........................................................... .... ............... C-4

Appendix D. Fault Isolation Procedure

Fault Isolation Procedure ...................................................................... D-1

T el epho n e Interfa ce ................................ .... ... .......................... ... ..... D-1

Standard Phone................................................................................. D-1

Modem and Telephone Line Check ...................................................... D-2

V.3600 xvii

Contents (continued)

Appendix E. Command Index and Defaults

General ................................................................................................. E-1

Caller ID Commands ....................................................................... E-12

Distinctive Ring Commands .................................... .... .... ............... E-12

Fax Commands ................................................................................ E-12

Class 1 Commands Valid in Only Fax Mode................................... E-12

Security Commands ........................................................................ E-14

Remote Configuration Commands ................................................. E-16

Status Registers .................................................................................... E-17

V.25 bis Dialer Commands ................................................................... E-20

V.25 Response Messages ................................................................ E-21

Factory Option Sets .............................. ... .......................... .... ... ............ E-23

Factory Option Set #1 ..................................................................... E-23

Factory Option Set # 2 .................................................................... E-24

Factory Option Set #3 ..................................................................... E-25

Factory Option Set # 4 ..................................................................... E-26

Factory Option Set #5 ..................................................................... E-27

Factory Option Set # 6 ..................................................................... E-28

Factory Option Set # 7 .................................................................... E-29

Factory Option Set # 8 .................................................................... E-30

Factory Option Set #9 ..................................................................... E-31

Appendix F. ASCII and EBCDIC Characters Appendix G. Abbreviations and Acronyms Appendix H. Flash Upgrade

What You Need .................................................................................... H-1

Steps For Downloading ........................................................................ H-1

Troubleshooting .................................................................................... H-2

Appendix I. Country-Specific Parameters Service and Support Motorola Limited Hardwa re Wa rranty Index

xviii V.3600

Chapter 1

Introduction

The Motorola V.3600 Series Modem provides synchrono us, asynchronous, and fax capabilities for data communications or facsimile links between a local computer and a remote computer, fax, or data terminal equipment (DTE) located anywhere a standard or cellular telephone can reach. Data can be transmitted over standard dial-up lines, private leased telephone lines, or wireless communication.

The V.3600 Series Modem communicates at standard data rates up to 33,600 bps with compatible modems connected to similarly equipped computers, computer services, and data bases. Advanced error co ntrol and data compression ensure data integrity and increase data throughput.

When used with a Class 1 Fax software package, the modem can ex change fax documents at data rates up to 14,400 bps with any Group 3 fax machine or PC with a fax modem.

A high-level security feature allows secure operation of the modem, both locally and remotely.

Shelf-Mount Units

This User’s Guide supports the desktop a nd shelf-mount versions of the V.3600. Operation and function are generally the same for both, but when there is a difference, the information primarily supports the desktop unit. Installation for each version is described in Chapter 2.

V.3600 1-1

Introduction

Features

The V.3600 is a flexible telecommunications tool that offers the following standard features.

Data Mode

• Full-duplex operation on two- wire public connect ions or two-wire or four-wire private telephone connections with two-wire public automatic or manual backup

• 300, 1200, 2400, 4800 , 72 00, 9 600 , 120 00, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200, 33600 bps DCE data rates

• Compatible with these standards:

CCITT V.34 CCITT V.33 CCITT V.32 bis CCITT V.32 CCITT V.29 CCITT V.27 CCITT V.22 bis CCITT V.22 CCITT V.21 CCITT V.13 Bell 212A Bell 103

• Compatible with a variety of software packages

• Synchronous operation at all DCE data rates except Bell 103 300 and V.23

• Asynchronous operation at all DTE data rates up to 230.4 kbps

• CCITT V.42 bis and MNP level 5 data compression

• CCITT V.42 and MNP 4 error control protocol

• LCD configuration and status for easy operation

• Front panel lockout

• Autodial and Autoanswer capability

• Autobaud DTE rate and character format selection

• AT command set

• V.25 bis autodialer

• Configuration memory

• Phone number storage

1-2 V.3600

•Caller ID

• Distinctive ring

• Multiple levels of security with auto callback and password protection and up to 50 users

• Automatic speed matching to originating modem

• Remote configuration using command mode or LCD

• Built-in standard diagnostics for testing phone line quality and modems at each end

• Flash upgrades

Fax Mode

• Fax speeds to 14.4 kbps

• HDLC framing to allow T.30 Error Correction Mode

• Standard Class 1 interface conforms to EIA-578

• Group 3 compatibility: CCITT V.21 Channel 2, V.27 ter, V.29, V.1 7

• Autoanswer under software control

• Automatic fax/data detection

Software

Introduction

Software operates the features of the V.3600.

Communications Software

You must have communications software to transfer data. After installing the modem, consult your comm unications software user's manual for information on the software, commands, and features.

Class 1 Fax Communications Software

For sending faxes, a Class 1 fax software package is required.

Internet Browser

To connect to the Internet, Internet browser software is required.

V.3600 1-3

Introduction

Description

Functional

The V.3600 processes serial asynchronous data from a DTE at all standard rates from 3 00 bps to 230.4 k bps*, and ser ial syn chro nous dat a at rates from 300 to 33.6 kbps. Transmission can be over either dial-up lines or either two- or four-wire leased lines. The maximum line speed is

33.6 kbps. Built-in test features can determine system performance and isolate faults in the data link. Operation and configuration are controlled by the front panel LCD, the AT command set, or the V.25 bis command set.

The 230.4 kbps DTE speed is available, but the V.3600 will not

autobaud to 230 .4 kbps. With the modem se t for 115.2 kbps, enter AT\J2 to enable the speed and enter AT\J3 to disable it.

Physical

The V.3600 has a 32 character LCD front panel with three pushbuttons for option selection (Figure1-1).

Figure 1-1. Typical Front Panel

1-4 V.3600

V.3600

Introduction

The V.3600 rear panel has an EIA-232 DTE connector, an 8-pin TELSET/LEASED LINE jack, an 8-pin DIAL jack, the power switch, fuse, and cord (Figure 1-2).

TELSET

LEASED LINE

DIAL

DTE

3/16 AMP S.B.

Figure 1-2. Rear Panel (115 Vac Model)

115 VAC 60 HZ 1/4 AMP

V.3600 1-5

Introduction

RM16M Unit

The shelf-mount RM16M unit (Figure 1-3) has edge connectors that insert into the shelf backplane. The shelf backplane performs the same

functions as the standalone rear panel. Refer to the “Shelf-Mount RM16M V.3600 Installation” section on page 2-9.

V.3600

Figure 1-3. RM16M Version of the V.3600

1-6 V.3600

Chapter 2

Installation

This chapter provides information on mechanical and electrical installation of the modem.

Electrical Installation

The rear panel (Figure 2-1) includes DTE cable and telephone line connectors.

TELSET

LEASED LINE DIAL

Figure 2-1. Rear Panel Connections (115 Vac Model)

AC Power Connection

Power is supplied through a 6-foot line cord with a grounded 3-wire plug.

DC Power Connection

Caution

To protect the DC-to-DC converter from damage, ensure

the positive and negative leads are properly connected.

If the modem is equipped for 12-60 VDC power input, connect the power to the terminal block attached to the modem back panel. A chassis ground connection is also supplied on the terminal block.

V.3600 2-1

Installation

If the modem is equipped for +/- 12/+5 VDC power input, connect the VDC power to the amp connector. A chassis ground connection is also supplied on the terminal block.

DTE Connection

The DTE connector is a 25-pin D-series type conforming to EIA-232 specifications. Y o u must use a shielded DTE cable to comply with EMC requirements. Pin signals are shown in Figure 2-2 and are described in Table 2-1.

2-2 V.3600

Installation

Figure 2-2. Digital Interface Signals

V.3600 2-3

Installation

Table 2-1. Pin Signal Descriptions

EIA-

232D

1101 2BA103

3BB104

4CA105

5CB106

6CC107

7AB102

8CF109

9 10

* Modem options may force these signals on or cause them to be ignored. ** Refer to Appendix C, Hardware Options.

† This function can be disabled or its logic sense reversed by hardware straps.

CCITT V.24 Signal Description

Shield No connection Transmit-

ted Data

Received Data

Request to Send

Clear to Send

Data Set Ready

Signal Ground

Received Line Signal Detector

+12 Volts +12 voltage reference

-12 Volts -12 voltage reference

Serial digital data (to be modulated) from a data terminal or other digital data source: Sync h ronous data must be accompanied by the modem transmit clock (pin 15) or by an ex te rna l da ta rate clock (pin 24). Data transitions should occur on positive-going clock transitions; asynchronous data does not require a transmit clock.

Serial digital data output to the D TE interface: Sync data is accompanied by an internal data rate (receive) clock (pin 17) that has positive-going transitions on the data t ransition. Async data does not require a receive clock.

A positive level to the modem when data transmission is desired

A positive level from the modem in response to Request to Send and when the modem is ready to transmit. *

A positive level from th e m o dem wh en power is on and ready to op er a te : I n dial-up operation, the modem must be off hook to give a high DSR signal.*

Signal or common signal and dc power ground. **

A positive level from the modem indicating the presenc e of a received signal (carrier detect). *

2-4 V.3600

Installation

Table 2-1. Pin Signal Descriptions (Continued)

EIA-

232D

* Modem options may force these signals on or cause them to be ignored. ** Refer to Appendix C, Hardware Options.

† This function can be disabled or its logic sense reversed by hardware straps.

CCITT V.24 Signal Description

DB 114

DD 115

-- 141

CD 108.2

-- 140

CE 125

CH 111

DA 113

-- 142

Signal Quality Indicator

Transmit Clock (DCE)

Receive Clock

Local Loopback

Data Terminal Ready

Remote Digital Loopback

Ring Indicator

Data Rate Select

External Transmit Clock

Test Mode Indicates the modem is in a test mode.

This circuit indicates probability of errors in the received data: a positive level indicates poor signal quality while a negative level indicate s good

signal quality. † A transmit data rate clock output for

use by an external data source: P ositive clock transitions correspond to data transitions.

A receive data rate clock ou tput for u se by an external data sin k: Po sitiv e clo ck transitions correspond to data transitions.

A positive level causes the modem to enter the local analog loopback test mode.*

This circuit is positive when the DTE is ready to originate or answer a call in dial-up oper ation . DTR m ust a lways be active (high) in 2-wire private line operation. Cycling DTR causes retraining.*

A positive level causes a digital loopback test mode at the remote modem.*

In direct dial operation this circuit is positive in response to an incoming ring signal.*

Supplies a data rate control input to select primary or fallback data rate: Negative voltage selects primary data rate and positive voltage selects fallback data rate.*

A serial data rate clock input from the data source. Positive clock transitions correspond to data transitions.

V.3600 2-5

Installation

Telephone Line Connection

The modem operates in these line-related modes:

•Dial

• Leased

Dial Mode: PSTN Connection (DIAL jack)

The public switched telephone network (PSTN) is a two-wire dial network. Modems are registered with the Federal Communication s Commission (FCC) for direct connection to the PSTN. The label on the chassis bottom gives the FCC registration number and other information required for network operation.

2-6 V.3600

Direct connection to the PSTN is shown in Figure 2-3.

Installation

8-pin

Connectors

TELSET

LEASED LINE

Cable supplied with telephone

RJ11C jack installed by telephone company

Notes:

1. The TELSET jack is provided on the back of the modem for use with a

standard rotary or tone dial telephone regardless of the telephone

jack arrangement ordered from the telephone company.

2. This standard rotary or tone dial telephone set can be used for

originating a call or for voice communication. For sites requiring

only auto answer capability, a phone is not needed.

3. For connector pin-outs, refer to Appendix B.

DIAL

DTE Connector

Screws

DTE

25-Pin Connector

Shielded DTE Cable

Use 8-pin Modular (at modem end) to 6-pin Modular (at RJ11 wall jack end) connector.

EIA-232

to DTE

Figure 2-3. Dial-up Connection (115 Vac Model)

Leased Line Connection (TELSET/LEASED LINE Jack)

Private or leased lines use four -wire or two-wire lines. In this mode, th e user configures the unit for four-wire or two-wire operation, depending on the private line service used.

V.3600 2-7

Installation

The telephone company will install the leased line and wall jack at your site. The line connects to the modem at the 8-position TELSET/ LEASED LINE jack.

Figure 2-4 shows a typical modem hookup for operation over private leased lines with dial backup.

Telset Leased

Line Jack

Dial

(May be used for

Dial Backup)

TELSET

LEASED LINE

Leased Line

Cable

Leased Line

Jack

Notes:

1. Set the transmit output level to 0dBm.

2. DTR, which is the signal on pin 20 of the DTE interface, must be active

or the option DTE IGNORED must be set for 2-wire OR 4-wire leased line operation.

3. The connection shown includes dial backup. Connect only the leased-line jack

to the modem’s Telset jack for regular Leased-line use.

4. For a 2-wire Leased-line connection, Pins 1 and 2 of the Leased-line connection are used for Tx and Rx data. For a 4-wire Leased-line connection, Pins 1 and 2 are used for Tx, and Pins 7 and 8 are used for Rx.

5. For connector pin-outs, refer to Appendix B.

RJ11C

DIAL

DTE

EIA-232

25-Pin Connector

to DTE

Use 8-pin Modular (at modem end) to 6-pin Modular (at RJ11 wall jack end) connector. (Optional connection for dial backup use.)

Figure 2-4. Leased Line Connection (115 Vac Model)

2-8 V.3600

Installation

Shelf-Mount RM16M V.3600 Installation

Go to Appendix C, Hardware Options to check the board options before installation.

Shelf-mount RM16M V.3600s should be installed or replaced by personnel familiar with shelf-mount installation. Th e unit has an edge connector that inserts into a receptacle located on the backplane and power bus.

Note

Figure 2-5 represents a typical dialup connection using one of the most common rack shelves. Connect cables as appropriate for any compatible RM16M shelf.

RJ11C, RJ45S or

RJ11C jack, installed

RJ41S jack installed by telephone company

To DTE

Shelf backplane (with RM16M V.3600 installed)

Figure 2-5. RM16M Connections

V.3600 2-9

Chapter 3

Getting Started

Option Selection

There are six ways to change or select options:

• LCD - Using the front panel LCD and pushbuttons is simple, straightforward, and requires the least amount of technical background. Chapter 4 explains LCD operation.

• AT Commands - The AT command set can be used to select modem options. Chapter 5 describes AT commands.

• Status Registers - A series of special ATS commands allows the operator to change the decimal or hexadecimal value of a memory byte to change one or more options in that byte. Chapter 10 describes S-registers.

• Single Bit Status Registers - A second series of special ATS commands allows the user to change single bits with in a byte to change an option. Chapter10 also explains single bit control.

• Software Program - A wide variety of software programs is available, or advanced computer users can write their own software programs to interact with the modem. This manual does not discuss software programs.

• V.25 bis Commands - An extended set of V.25 commands allows selection of modem options during synchronous operation. Refer to Chapter 11.

Power-Up

A power-up procedure is not required. Turn on the modem using the ON/ OFF power switch on the rear panel. The modem is fa ctory configured to operate in most public switched telepho ne applicati ons. If yo u have stored a desired option set it will be automatically be restor ed at power-up.

V.3600 3-1

Getting Started

Placing a Call

There are three methods for placing a call:

Dialing with a Standard Telephone

1) Lift the telephone receiver. Wait for the dial tone.

2) Dial the number of the remote site.

3) When the answer back tone is heard, immediately press the TALK/DATA button and hang up the telephone. Th e mo dems go through a connection sequence and establish a data link. If a data link is not established, return to Step 1.

4) After the link is established, hang up the telephone.

Autodialing from Front Panel

1) If the number to be dialed has not been stored, advance to Main Menu #6, CHANGE PHONE NUMBER.

2) Enter the number by using the NO pushbutton to scroll the menu and YES to select.

3) After the number is entered, press YES to store the number.

4) Advance the LCD to Main Menu #2, DIAL STORED NUMBER.

5) Select the number to dial and press YES. The number is dialed, and the modems follow the same process as two telephone s.

Autodialing from a Terminal with the AT Commands

To dial a number, for example 555-1212, type AT D 555-1212 and press Enter, or enter ATDSn where n equals one of the stored telephone number locations 1-9.

The modem dials the number--either pulse or tone, whichever is currently in effect--and takes the role of the originate modem.

Refer to the “Dial Commands” section on page 5-13 for additional dialing comma nds.

3-2 V.360 0

Getting Started

Answering a Call

There are three ways to answer a call:

Autoanswering

Normally the modem is configured to autoanswer on the first ring. If a telephone is plugged into the TELSET/LEASED LINE jack, it will also ring.

Answering Manually

When detecting a ring, the modem LCD displays ringing status. Press TALK/DATA to answer the call and place the modem in the data

mode.

Answering from Terminal with AT Command Set

The modem displays the ring resp onse. T o answer a call, type ATA. The mo dem send s an answer-back tone and

attempts to connect to the remote modem.

Ending a Call

There are two ways to complete a call:

Ending a Call Using the Front Panel

1) Press the TALK/DATA pushbutton. DO YOU WANT T O DISCONNECT will be displayed.

2) Answer YES.

Ending a Call from a Terminal with the AT Command Set

1) Enter +++ and the modem will enter command mode.

2) Enter ATH and the modem will terminate the call.

V.3600 3-3

Getting Started

Reasons for Call Termination

The conditions described in Table 3 -1 cause call termination.

Table 3-1. Reasons for Call Termination

Condition

Abort Disconnect (No answer, busy signal, no modem, etc.)

ATH Disconnect command. Loss of Carrier

Disconnect Receive Long Space

Disconnect DTR Disconnect Disabled or select 10 ms to 2.55 sec

Loss of Line Current Cleardown A disconnect method used in V.32 and V.34 mode. LCD Display When TALK/DATA is pressed, the LCD displays

Train Timeout Modem fails to establish communication with

Protocol Link Establishment Failure

Inactivity Timeout Default is 0 or disabled; select for disabled or 1 to

Protocol Retry Limit Exceeded

Minimum DCE Speed A connection occurred at a rate less tha n mi ni mum .

Description

Default 30 sec; select 1 to 255 sec (S-register 7).

Select 100 ms to 25.5 sec (S -r e gis te r 10 ) .

Disabled or select 2 sec.

(S-register 25).

DO YOU W ANT TO GO TO TALK? When YES is pressed modem hangs up, if no telephone is connected or if the connected telephone is not off hook. Pressing NO displays DO YOU WANT TO DISCONNECT? Press YES to disconnect.

remote site. Default is 30 seconds (S-register 7). Reliable mode only; failure to establish reliable

link.

255 minutes (S - register 8). 12 retransmissions of the frame.

Security Password Failure

Security Callback Security callback is enabled and a new remote

Maximum password entry attempts exceeded.

connection is established. The modem disconnects and places a call to the pr ogrammed number.

3-4 V.360 0

Getting Started

Table 3-1. Reasons for Call Termination (Continued)

Condition

Signal Quality Leased line operation with dial backup enabled;

Test Mode entered Certain test modes require call termination. Modem power is turned

off.

Description

extended loss of carrier or 4 unsuccessful retrains in 3 minutes causes dial backup.

V.3600 3-5

Chapter 4

Front Panel Operation

The liquid-crystal display (LCD) front panel provides easy real-time access to modem configuration and status. You can use the LCD at any time to modify modem options or to get information about modem operation and status. All of the major modem options can be controlled through the LCD interface without an external terminal or phone line connection. Operation of the LCD can be secured using a password protection feature. A remote modem can even be configured using the local LCD, through the use of the front panel remote configuration feature.

LED Descriptions

The V.3600 LED indicator functions are as follows:

• TR (Terminal Ready). TR lights when the DTE asserts Data Terminal Ready. This signal is input on pin 20 (CCITT V.24/108.2).

• CS (Clear to Send). CS lights when th e modem is ready to send data to the DTE. This signal is output on pin 5 (CCITT V.24/106).

• RS (Request to Send) . R S li ghts wh en the DTE is ready to send d at a to the modem. This signal is input on pin 4 (CCITT V.24/105).

• CD (Carrier Detect). CD lights when the received audio carrier signal is detected or, if enabled, when error control protocol negotiation is complete. This signa l is output on pin 8 (CCITT V.24/109).

• RD (Received Data). RD lights for a data space condition at the receive data output, indicating receive data output activity. This signal is output on pin 3 (CCITT V.24/104).

• TD (Transmit Data) TD lights for a data space condition at the transmit data input, indicating transmit data input activity. This signal is input on pin 2 (CCITT V.24/103).

V.3600 4-1

Front Panel Op e ration

LCD Menus

The V.3600 has seven main LCD m enus that support m odem operat ions. Table 4-1 lists them, in the following sequence:

• MODEM STATUS

• DIAL STORED NUMBER

• DISPLAY STATUS

• SELECT TEST

• MODIFY CONFIGURATION

• CHANGE PHONE NUMBERS

• FRONT PANEL FEATURES

LCD Menu Operation

The LCD menu is shown in Table 4-1, as follows:

• The first column lists the seven main menu categories.

• The second column is the submenus, listing functions for each category in the main menu.

• The third column lists specific items for submenu functions.

• The fourth column lists option choices or status for the specific items in the third column.

• The fifth and sixth columns in the table show associated AT commands and S-registers as a cross reference.

Each column item has a correspondin g header in the previous co lumn. If an option setting is selected or if all settings have been scrolled through, the display returns to the header.

Because of the menu structure and option choices, not all main menus use all four columns in Table 4-1. However, option selection and sequence are the same.

While operating in the option menu, pressing NO scrolls vertically down the columns; pressing YES advances horizontally across the columns. However, responding to the LCD prompt is the best way to reach an option. If NO is pressed and held, the LCD scrolls through the menus. Press the TALK/DATA button to return to the previous menu.

4-2 V.360 0

Front Panel Operation

Table 4-1. LCD Menu Option Selection

Main Menu LCD Messages

1 MODEM-

STATUS

Main Menu Submenu Submenu Item

2DIAL

STOREDNUMBER?

3DISPLAY

STATUS?

(status only)

4 SELECT

TEST?

When modem is not online, the display flashes and shows the status from the

last connection .

† Modem must be online with protocols disabled.

V.34 33600 IDLE

Shows the current modulation, bit rate, and modem status.

DIAL #1-9 YES, NO DSn

DTE SIGNALS

PROTOCOL* NONE

COMPRESSOR*

CARRIER DESCRIPTIONS*

LAST DISCONNECT REASON

(Offline test only)

(Online test) LOCAL DIGITAL

QM ON/OFF DSR ON/OFF OH ON/OFF RI ON/OFF

MNP 2, 3, 4, 5 LAPM

NONE MNP 5, V.42b

RECEIVE LEVEL NEAR END ECHO LEVEL FAR END ECHO LEVEL FAR END ECHO DELAY FREQUENCY TRANSLATION BAUD RATE RX BIT RATE TX BIT RA TE

DISPLAY STATUS

LOCAL ANALOG LOOP

LOCAL ANALOG LOOP WITH TP

LOOP †

(Press NO to advance to MAIN 2)

Item Option

DISPLAY STATUS

INITIATE, EXIT

AT Com.S-Reg

(n=1-9)

--- ---

&T1 S16

&T8 S16

&T3 S16

SReg

S91 S67

---

V.3600 4-3

Front Panel Op e ration

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

SELECT

TEST? (continued)

c o n t.

5MODIFY

CONFIGURATION?

Lease line only.

** 9600U is only valid for V.32 bis modulation.

(Online test continued)

CHANGE MODEM OPTIONS?

REMOTE

DIGITAL LOOP † REMOTE DIGI

TAL LOOP WITH TP †

TEST PATTERN† INITIATE,

CHANGE LEASED/ DIAL LINE?

CHANGE MODULATION?

CHANGE MAX DCE RATE?

† Modem must be online with protocols disabled.

Item Option

INITIATE, EXIT

EXIT 2 WIRE/

4 WIRE AUTO-

MODE V.21 BELL 103 B212A V.22 bis V.27 ter * V.29 * V.33 * V.32bis V.34

33600 31200 28800 26400 24000 21600 19200 16800 600 14400 12000 7200 9600 9600U ** 4800 2400 1200 300 DTE SPEED

AT Com.S-Reg

&T6 S16

&T7 S16

%T ---

&L1,&LS27

*MM *MM1 *MM2 *MM4 *MM5 *MM6 *MM8 *MM10 *MM11 *MM12

%B18 %B17 %B16 %B15 %B14 %B13 %B12 %B11 %B10 %B9 %B8 %B7 %B6 %B5 %B4 %B3 %B2 %B1 %B

S88

S69

4-4 V.360 0

Front Panel Operation

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu

MODIFY

CONFIGURATION?

(continued)

o n t.

Lease line only.

** 9600U is only valid for V.32 bis modulation.

CHANGE MODEM OPTIONS? (continued)

Item

CHANGE MIN DCE RATE?

CHANGE V.34 RATE THRESHOLD?

V.34 ASYM RATES

NORMAL ORIGINATE FORCED ANSWER*

V.22 GUARD TONE

V.32 FAST TRAINENABLE

AUTO RETRAIN ENABLE

SQ AUTO RATE HIGH BER

TRANSMIT CLOCK SELECT

Submenu

Item Option

33600 31200 28800 26400 24000 21600 19200 16800 600 14400 12000 7200 9600 9600U ** 4800 2400 1200 300 DTE SPEED

LOW BER MED BER HIGH BER

ENABLE DISABLE

NORMAL ORIG. FORCED ANS.

DISABLE 550 Hz 1800 Hz

DISABLE

MED BER LOW BER DISABLED

INTERNAL EXTERNAL RECEIVE

AT Com.S-Reg

%L18 %L17 %L16 %L15 %L14 %L13 %L12 %L11 %L10 %L9 %L8 %L7 %L6 %L5 %L4 %L3 %L2 %L1 %L

*TH *TH1 *TH2

*AS1 *AS

*OR *OR1

&G &G1 &G2

*FT1 *FT

%E1%ES60

%R3 %R2 %R1 %R

&X &X1 &X2

S69

---

S96

S14

S23

S29

S53

S27

V.3600 4-5

Front Panel Op e ration

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

MODIFY

CONFIGURATION?

(continued)

o n t.

Lease line only.

† Dial line only.

CHANGE MODEM OPTIONS? (continued)

CHANGE PROTOCOL OPTIONS?

DIAL TRANSMIT LEVEL

RING FREQUENCY LIMIT

LEASE TRANSMIT LEVEL*

LINE CURRENT

DISCONNECT†

LONG SPACE DISCONNECT†

DIAL BACKUP* MANUAL

LOOKBACK TIME*

LAPM PROTOCOL

MNP PROTOCOL

PROTOCOL FALLBACK

DATA COMPRESSION

Item Option

-9 dBm to

-21 dBm

ENABLE DISABLE

0 to -21 dBm *TLn S52

OFF SHORT LONG

ENABLE DISABLEY1Y

AUTOMATIC

0 DISABLED to 255 MINUTES

ENABLE DISABLE

DISABLE NORM TX RX

AT Com.

*TDn S51

*RL1 *RL

*LC, *LC1, *LC2

*DB *DB1

--- S28

\N4, \N5, \N6, \N7 \N, \N1, \N2, \N3

\N2, \N3, \N6, \N7 \N, \N1, \N4, \N5

\N3, \N5, \N6, \N7 \N, \N1, \N2, \N4

%C %C1 %C2 %C3

SReg

S32

S21

S32

S70

S56

4-6 V.360 0

Front Panel Operation

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

MODIFY

CONFIGURATION?

(continued)

o n t.

CHANGE PROTOCOL OPTIONS? (continued)

CHANGE DTE OPTIONS?

DTE SPEED DTE=DCE

DTE FLOW CONTROL

DCE FLOW CONTROL

XON/XOFF PASS THROUGH

INACTIVITY TIMER

BREAK OPTION

V.42 FAST DETECT

DATA OPERATION

DTE RATE (Async)

CHAR SIZE (Async)

PARITY (Async) NO, EVEN,

Item Option

CONSTANT DTE

DISABLE

XON/XOFF

CTS RTS/CTS

DISABLE XON/XOFF CTS

ENABLE DISABLE

OFF, 15, 30, 45, 60, 75, 90 MIN

0, 1, 2, 3, 4, 5\K, \K1,

ENABLE DISABLE

SYNC ASYNC

300, 600,1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200 33600 38400 57600, 115200

7 BIT 8 BIT

ODD

AT Com.S-Reg

\J1 \J

\Q \Q1 \Q2 \Q3

\Q4 \Q5 \Q6, \Q7

\X1 \X

\TLn S58

\K2, \K3, \K4, \K5

\M1 \M

&M1, 2, 3, 4, 5, 6 &M

--- S80

--- S61

S70

S54

S59

S70

S27 S30

V.3600 4-7

Front Panel Op e ration

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

MODIFY

CONFIGURATION?

(continued)

o n t.

CHANGE DTE OPTIONS? (continued)

DIAL METHOD ASYNC

AT COMMAND SET

CHARACTER TYPE (V.25

SDLC DATA FORMAT

DTR STATE IGNORE

DSR STATE NORMAL

DCD STATE NORMAL

CTS STATE NORMAL

Item Option

DTR, MANUAL, V.25 BISYNC, V.25 SDLC V.25 bis ASYNC

ENABLE DISABLE

ASCII,

only)

EBCDIC NRZ, NRZI --- S30

RECALL CMD DISCONNECT RESET

FORCED HIGH OFF 5 SEC ON DISCONNECT FOLLOWS OH

FORCED HIGH OFF 5 SEC ON DISCONNECT FOLLOWS REMOTE RTS

FORCED HIGH CTS FOLLOWS DCD CTS=RTS

AT Com.S-Reg

&M1, &M2 &M3 &M4

&M5 &M6

*NT1 *NT

--- S30

&D &D1

&D2 &D3

&S1 &S

&S2

&S3

&C1 &C

&C2

&C3

&R &R1 &R2

&R9

S27 S30

S29

S21

S21 S72

4-8 V.360 0

Front Panel Operation

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

MODIFY

CONFIGURATION?

(continued)

o n t.

CHANGE DTE OPTIONS? (continued)

CHANGE TEST OPTIONS?

CHANGE DIAL OPTIONS?

RTS/CTS DELAY 0 to 150 ms

DTE COMMANDED FALLBACK

OPTIONS RES/ RETND AT DISC

BILATERAL DIGIT AL LOOP

DTE LOCAL TEST

DTE REMOTE TEST

REMOTE COMMANDED

TEST TIMEOUT OFF, 60,

DIAL TYPE PULSE,

AUTODIAL # OFF, 1 - 9 *AUn

DIAL TONE BLIND DIAL

WAIT DELAY (Blind Dial)

PAUSE DELAY 1, 2, 3, 4, 8,

CALL TIMEOUT 15, 30, 45,

ANSWER RING #X1, 2, 4, 8, 16 --- S0

Item Option

(10 ms) ENABLE

DISABLE

RESTORED RETAINED

ENABLE DISABLE

120, 180. 240 SEC

TONE

WAIT FOR DIAL

TONE

1, 2, 3, 4, 8, 16, 32 SEC

16, 32 SEC

60, 75, 90, 105, 120 SEC

AT Com.S-Reg

--- S26

*FB1 *FB

*RO1 *RO

*DG1 *DG

*LA1 *LA

*RD1, *RD

&T4 &T5

--- S18

P, T S14

(n=1-9) X, X1,

X3 X2, X4

--- S6

--- S8

--- S7

S53

S29

S34

S23

---

S22

CHANGE SPEAKER OPERATION?

AUTOCALLBACK ENABLE,

VOLUME CONTROL

DISABLE LOW

HIGH

--- S72

L1, L2L3S22

V.3600 4-9

Front Panel Op e ration

Table 4-1. LCD Menu Option Selection (Continued)

Main Menu Submenu Submenu Item

MODIFY

CONFIGURATION?

(continued)

o n t.

6 CHANGE

PHONE NUMBERS?

7 FRONT

PANEL FEATURES?

Password of 0000 disables front panel security.

CHANGE SPEAKER OPERATION? (continued)

LOAD/STORE OPTION SET?

SPEAKER CONTROL

LOAD FACTORY OPTION

LOAD USER OPTION SET12

STORE PRESENT OPTIONS

USER OPTION AT RESET

PHONE NUMBER

CHANGE RMT PASSWORD?

ENTER REMOTE CONFIGURATION

EXIT REMOTE CONFIGURATION

CHANGE FRONT PANEL PASSWORD

Item Option

ON UNTIL CARR DETECT ALWAYS ON OFF WHILE DIALING ALW AYS OFF

NO, 1-9 &Fn

1 2

ENTER NUMBER 32 digits

ENTER PASSWORD

ENTER REM CFG PASSWORD

EXIT &T ---

ENTER PASSWORD *

ACTIVATE SECURITY

AT Com.S-Reg

M2 M3 M4

(n=1-9)

Z0 Z1

&W &W1

&Y &Y1

&Zx=n (n= # and modifiers) *CNx,n

%P ---

%T ---

--- ---

S22

---

phone

4-10 V.3600

Front Panel Operation

Front Panel Security

The Front Panel Security feature provides password protection for fro nt panel menu access. The modem is shipped from the factory with this feature disabled.

The Front Panel Security password is a 4-digit string that can be set to

any combination of digits f rom “000 0” t o “999 9”. S el ecti ng a pas swor d of “0000” disables Front Panel Security; any other password enables it.

IMPORTANT: Without your password, you cannot access front panel configuration. Keep your password in a safe place. If you forget your Front Panel Security password, contact Technical Support. Refer to “Calling Technical Support” section on page 12-2.

When this feature is enabled, it can be activated in these ways:

• Explicitly, by a front panel screen under Main Menu #7

• By the modem, when no front panel but tons have been p ressed for 3 minutes

When Front Panel Security is activated, th e front panel menu returns to Main Menu #1 and the front panel is secured.

In secured state, the Main Menu #1 screen continues to maintain modem status, but a password must be entered before other front panel screens may be accessed. Pressing any front panel button causes the modem to prompt for the fr ont panel passw ord. After the pa ssword has been entered, a message briefly displays the result of the password validation process and, depending on the result, Front Panel Securi ty either becomes inactive or returns to its active state.

During password entry, the front panel buttons are operate as follows:

• Pressing NO makes the character at the cursor change to the next

valid password character.

• Pressing YES while the cursor is on any of the first three password

characters makes the cursor advance to the next password character. When the cursor is on the last password character, pressing YES makes the modem accept the displayed password.

• P res sin g TALK/DATA while the cursor is on the first password

character aborts password entry. When the cursor is on any other character, this button makes the cursor move to the first character.

V.3600 4-11

Chapter 5

AT Commands

This chapter describes commands used to select options and operate the modem. Some options depend on, or are restricted by, the mode of operation. Appendix E provides a quick reference list.

Command Categories

The modem offers these major categories of command statements:

• Response (page 5-5)

• Dial (page 5-13)

• Answer (page 5-17)

• T ermin al Interface (page 5-19)

• General (page 5-22)

• Private Line (page 5-33)

• Configuration (page 5-37)

• Remote Configuration (page 5-41)

Other AT command groups are discussed in these chapters:

• Protocol (Chapter 6)

• T est (Chapter 7)

• Security (Chapter 8)

• Fax (Chapter 9)

• S-registers (Chapter 10)

Operation Modes

In asynchronous operation, the modem functions in one of these modes:

• Offline Command Mode

• Online Command Mode

• Data Mode

V.3600 5-1

AT Commands

Offline Command Mode

In offline command mode (generally referred to as comman d mode), the modem communicates with the computer or terminal. Commands can be entered separately or in strings. There is no data communication link established in this mode.

Online Command Mode

This mode is entered from the data mode after the escape command has been entered. The escape command is perfo rmed by en tering the escape character (+ is the default) three times. The data communication link remains established but data transmissio n is suspended. The modem then accepts commands as it does in offline command mode.

Data Mode

The modem goes to data mode (online) after it acknowledges the p roper signal and successfully connects with a compatible modem. In data mode, the modem sends and receives data, but does not accept or execute command instructions.

Example: The modem is in the command state. The D command and phone number are used to dial a remote mo dem. The local modem waits to receive an answer back tone from the remote modem. When the local modem receives the carrier , it leaves th e command state and go es online in the data mode. At this time, both modems are using the telephone line and a communication link is established.

Sending Commands to the Modem

When the computer, modem, and monitor are on, an instruction can be sent to the modem telling it what function or activity to p erfor m. The instruction, called a command statement, command string, or command, is typed using the computer/terminal keyboard. The command statement temporarily resides in a section of memory called the command buffer.

Each command statement is made up of characters, numbers, and keyboard symbols such as the & and % signs. Commands must be written in a specific form so the modem recognizes and follows the instruction.

5-2 V.3600

AT Commands

Creating a Command Statement — AT

To create a command statement use the following steps:

1) Type AT. This is the Attention Code telling the unit a command statement follows.

2) Type the command.

3) Press the Enter key to send the command statement to the modem.

An example of a command statement using the dial command (D) follows.

ATD554-1212

This statement can be read as “Attention: Dial 554-1212.” Another AT command statement example is:

ATZ

This statement can be read as “Attention: execute the Z command.” After entering a command line the modem returns a response message

indicating whether or not the command was accepted or giving the data requested by the command line.

To clear command statements from the buffer you can:

• Turn the modem off,

•Enter AT, or

• Use the DTR reset feature (“Data T erminal Ready — &D” section on page 5-20).

Autobaud

The attention code (AT) is analyzed by the modem to determine the transmission speed, parity, and bits per character us ed b y the DTE. This autobaud process is repeated each time the AT command prefix is sent.

Guidelines for Creating Command Statements

The attention code (AT) may be upper or lower case but not a combination like aT.

•Press the Enter key to execute a command.

• The command buffer can hold 80 characters.

• Use the backspace or delete key to erase the last character.

Even though the initial AT code must be all upper or lower case, characters that follow can be any mix of upper and lower case.

V.3600 5-3

AT Commands

Monitor Display

As commands are typed they appear on the monitor so the operator can verify the input. This is called local character echo. The echo may be turned on or off using AT commands. Refer to the “Local Character

Echo — E” section on page 5-22 for details.

Command Statement Buffer

The modem temporarily stores up to 80 characters in the command buffer. If this limit is exceeded, the modem does not accept the command and sends an ERROR message. To correct this condition, retype the command using 80 characters or less.

The AT characters and punctuation used in telephone numbers do not take up space in the buffer. Blank characters used as spaces to help increase readability are not counted. For example, the modem reads the commands:

ATD (212) 554-1212 ATD2125551212 ATD 212 555 1212

as having 11 characters each. Commands can be typed in any of these forms.

Backspace Key

Use the backspace key to change the command statement or correct errors. The backspace key allows the cursor to be moved back to the character(s) in error. The command can then be retyped from that point.

Example: ATD5551211 has been typed. To change the last 1 to 2, press the backspace key once, type 2, and press Enter to execute the command.

Repeating a Command — A/

This command tells the computer to repeat the last command stored in its buffer. It automatically reexecutes the command without retyping. The return key does not need to be pressed.

Example: The ATD5551212 command has been executed, and the phone is busy. To repeat the instruction type A/. Do not use AT before this command: AT empties the buffer.

5-4 V.3600

AT Commands

Numbered Commands

Commands that start with the same letter are distinguished by a number following the letter.

For example, the M0 command selects speaker always off, M1 speaker on until carrier detected, and M2 selects speaker always on.

Note

The zero (0) may be omitted; the commands M and M0 are identical. This manual uses the nonzero form. The modem treats both the same, but zeros count against the buffer total.

Group Commands

A group of commands can be typed in a single command statement. Pressing the Enter key sends the entire command string to the modem, which executes each command individually in the order it appears in the command statement reading from left to right.

For example, the command statement ATQ0V0L3DT5551212 means

• AT Attention.

• Q Allow response messages to be sent.

• V Select digit code responses.

• L3 Select high volum e.

• DT Tone dial 555-1212.

The modem executes the AT command fo llowed b y the Q, V, L, D, and T commands. ATQ0V0L3DT5551212 can be read as ATQVL3DT5551212. Eliminating zeros reduces the number of characters, allowing more room in the buffer.

The dial D command initiates the dial process so no oth e r commands, only dial modifiers, can follow it.

Note

Bold text indicates command parameter defaults.

Response Commands

The modem communicates with the operator through response messages. These appear on the monitor or a computer printout to show the result of the command or action executed. Response messages can appear as words or numbers.

V.3600 5-5

AT Commands

Digit / Word Selection — V

The V command tells the modem which type of response message to show on the monitor. Some software requires digit response mess ages but words are easier to remember.

Command Operation V Enables digit response me ssages V1 Enables word response messages

Response Displays — Q

The Q command enables or disables response messages. The modem still responds to commands when the response display is inhibited.

Command Operation Q Response display on Q1 Response display off Q2 Response display on in originate mode only

Negotiation Displays — W

The W command enables or disables negotiation response messages. These messages are verbose negotiation status displays to alert the user to the link rate, protocol, and DTE rate.

Command Operation

W Disables negotiation displays W1 Enables negotiation displays W2 Displays DCE link rate only

Connect Message Codes — \V

The V.3600 AT\V command provides the following connect message options

Command Operation

AT\V CONNECT DTE rate AT\V1 CONNECT DTE rate/protocol AT\V2 CONNECT DCE rate AT\V3 CONNECT DCE rate/protocol AT\V4 CONNECT DCE rx rate/DCE tx rate/modulation

5-6 V.3600

mode/protocol

AT Commands

Call Progress / Connect Speed Messages X

The X command selects response code/message displays and dialing options such as call progress monitoring, busy signal or dial tone detection and blind dialing.

Command Operation

X Dial tone and busy signal detection not selected;

CONNECT (code 1) response messages dis played for all speeds

X1 Dial tone and busy signal detection not selected;

appropriate CONNECT response messages or codes displayed for da ta rate

X2 Dial tone detection only; NO DIAL TONE message

or code appears if dial tone not detected within 5 seconds

X3 Busy signal detection only; BUSY message or code

appears if dialed number is busy

X4 Dial tone and busy signal detection; appropriate

CONNECT message or code displayed

The X command followed by a dial command makes the modem go off hook, wait the amount of t im e set in register S6, and dial the number. If connection is made, the modem returns a CONNECT (code 1) message to the screen regardless of the connection rate. With a basic response, the modem does not detect a busy or no dial tone condition.

The X1 command followed by a dial command makes the modem go off hook, wait the amount of t im e set in register S6, and dial the number. If connection is made the modem returns an appropriate CONNECT message or code to the screen. The modem does not detect a busy or no dial tone situation.

The X2 command followed by a dial comman d makes the modem go off hook and wait for a d ial to ne befor e dial ing. If a di al to ne is no t det ected within 5 seconds, the modem sends a NO DIALTONE message and hangs up. The modem does not detect a busy situation in this mode.

V.3600 5-7

AT Commands

The X3 command followed by a dial command makes the modem go off hook, wait the amount of time set in register S6 and dial the number. If a busy signal is detected, the modem sends a BUSY message and hangs up. If the call is completed, the appropriate CONNECT message similar to X1 is displayed. The modem does not detect a no dial tone situation.

The X4 command followed by a dial command makes the modem go off hook and wait for a d ial to ne befor e dial ing. If a di al to ne is no t det ected within 5 seconds, the modem returns a NO DIALTONE message and hangs up. If a busy signal is detected, the modem returns a BUSY message and hangs up. If the call is completed, the appropriate CONNECT message similar to X1 is displayed.

The X4 command combines the features of X1, X2, and X3. T he factory setting is X4.

Note

When an X2, X3, or X4 command is in effect, an appropriate CONNECT data rate message or code is displayed as for X1. When a blind dial command (X, X1, X3) is in effect, the modem waits 2 seconds or the time set in S6 and then dials.

Number Code Application — *RC

Some communications software packages use different number codes to indicate the data rate of the serial port. This option selects either of two commonly used number code sets.

Command Code Set Number Operation

*RC Standard 15

*RC1 Alternate 11

Note

Asterisks in AT commands are part of the command and do not indicate footnotes.

5-8 V.3600

4800 bps 9600 bps

AT Commands

Response Number Codes / Messages

Response number codes, messages, and their meanings are as follows. The connect rates are serial port rates (DTE), not DCE rates.

Code

0 OK Command received 1 CONNECT Connect at 300 bps while X1, X2,

2 RING Ring detected 3 NO CARRIER Valid carrier not detected within

4 ERROR Command not recognized or too

5 CONNECT 1200 Connection made at 1200 bps 6 NO DIAL TONE No dial tone detected for 5

7 BUSY Dialed number busy (X3 or X4

10 CONNECT 2400 DTE rate 2400 bps

11, 15 CONNECT 4800 DTE rate 4800 bps 12, 18 CONNECT 9600 DTE rate 9600 bps

20 CONNECT 300 DTE rate 300 bps 22 CONNECT 7200 DTE rate 7200 bps 23 CONNECT 12000 DTE rate 12000 bps 24 CONNECT 14400 DTE rate 14400 bps 25 CONNECT 16800 DTE rate 16800 bps 26 CONNECT 19200 DTE rate 19200 bps 27 CONNECT 21600 DTE rate 21600 bps 28 CONNECT 24000 DTE rate 24000 bps 29 CONNECT 26400 DTE rate 26400 bps 30 CONNECT 28800 DTE rate 28800 bps

Message Meaning

X3, or X4 command in effect; all rates while X command in effect

period specified by register S7, or carrier lost for value of S10 or more

long

seconds (X2 or X4 command in effect)

command in effect)

V.3600 5-9

AT Commands

Code

Message Meaning

31 CONNECT 31200 DTE rate 31200 bps 32 CONNECT 32000 DTE rate 32000 bps 33 CONNECT 33600 DTE rate 33600 bps 34 CONNECT 38400 DTE rate 38400 bps 35 CONNECT 57600 DTE rate 57600 bps 36 CONNECT 115200 DTE rate 115200 bps 37 CONNECT 230400 DTE rate 230400 bps 38 CONNECT 300/V42bis V.42 bis 300 bps connection 39 CONNECT 600/V42bis V.42 bis 600 bps connection 40 CONNECT 1200/V42bis V.42 bis 1200 bps connection 41 CONNECT 2400/V42bis V.42 bis 2400 bps connection 42 CONNECT 4800/V42bis V.42 bis 4800 bps connection 43 CONNECT 7200/V42bis V.42 bis 7200 bps connection 44 CONNECT 9600/V42bis V.42 bis 9600 bps connection 45 CONNECT 12000/

V.42 bis 12000 bps connection

V42bis

46 CONNECT 14400/

V.42 bis 14400 bps connection

V42bis

47 CONNECT 16800/

V.42 bis 16800 bps connection

V42bis

48 CONNECT 19200/

V.42 bis 19200 bps connection

V42bis

49 CONNECT 21600/

V.42 bis 21600 bps connection

V42bis

50 CONNECT 24000/

V.42 bis 24000 bps connection

V42bis

51 CONNECT 26400/

V.42 bis 26400 bps connection

V42bis

52 CONNECT 28800/

V.42 bis 28800 bps connection

V42bis

53 CONNECT 31200/

V.42 bis 31200 bps connection

V42bis

5-10 V.3600

AT Commands

Code

54 CONNECT 32000/

Message Meaning

V.42 bis 32000 bps connection

V42bis

55 CONNECT 33600/

V.42 bis 33600 bps connection

V42bis

56 CONNECT 38400/

V.42 bis 38400 bps connection

V42bis

57 CONNECT 57600/

V.42 bis 57600 bps connection

V42bis

58 CONNECT 115200/

V.42 bis 115200 bps connection

V42bis

59 CONNECT 230400/

V.42 bis 230400 bps connection

V42bis 60 CONNECT 300/V42 V.42 300 bps connection 61 CONNECT 600/V42 V.42 600 bps connection 62 CONNECT 1200/V42 V.42 1200 bps connection 63 CONNECT 2400/V42 V.42 2400 bps connection 64 CONNECT 4800/V42 V.42 4800 bps connection 65 CONNECT 7200/V42 V.42 7200 bps connection 66 CONNECT 9600/V42 V.42 9600 bps connection 67 CONNECT 12000/V42 V.42 12000 bps connection 68 CONNECT 14400/V42 V.42 14400 bps connection 69 CONNECT 16800/V42 V.42 16800 bps connection 70 CONNECT 19200/V42 V.42 19200 bps connection 71 CONNECT 21600/V42 V.42 21600 bps connection 72 CONNECT 24000/V42 V.42 24000 bps connection 73 CONNECT 26400/V42 V.42 26400 bps connection 74 CONNECT 28800/V42 V.42 28800 bps connection 75 CONNECT 31200/V42 V.42 31200 bps connection 76 CONNECT 32000/V42 V.42 32000 bps connection 77 CONNECT 33600/V42 V.42 33600 bps connection 78 CONNECT 38400/V42 V.42 38400 bps connection 79 CONNECT 57600/V42 V.42 57600 bps connection

V.3600 5-11

AT Commands

Code

Message Meaning

80 CONNECT 115200/V42 V.42 115200 bps connection 81 CONNECT 230400/V42 V.42 230400 bps connection 82 CONNECT 300/MNP5 MNP5 300 bps connection 83 CONNECT 600/MNP5 MNP5 600 bps connection 84 CONNECT 1200/MNP5 MNP5 1200 bps connection 85 CONNECT 2400/MNP5 MNP5 2400 bps connection 86 CONNECT 4800/MNP5 MNP5 4800 bps connection 87 CONNECT 7200/MNP5 MNP5 7200 bps connection 88 CONNECT 9600/MNP5 MNP5 9600 bps connection 89 CONNECT 12000/MNP5 MNP5 12000 bps connection 90 CONNECT 14400/MNP5 MNP5 14400 bps connection 91 CONNECT 16800/MNP5 MNP5 16800 bps connection 92 CONNECT 19200/MNP5 MNP5 19200 bps connection 93 CONNECT 21600/MNP5 MNP5 21600 bps connection 94 CONNECT 24000/MNP5 MNP5 24000 bps connection 95 CONNECT 26400/MNP5 MNP5 26400 bps connection 96 CONNECT 28800/MNP5 MNP5 28800 bps connection 97 CONNECT 31200/MNP5 MNP5 31200 bps connection 98 CONNECT 32000/MNP5 MNP5 32000 bps connection 99 CONNECT 33600/MNP5 MNP5 33600 bps connection 100 CONNECT 38400/MNP5 MNP5 38400 bps connection 101 CONNECT 57600/MNP5 MNP5 57600 bps connection 102 CONNECT 115200/

MNP5 115200 bps connection

MNP5 103 C ONNECT 230400/

MNP5 230400 bps connection

MNP5 104 CONNECT 300/MNP MNP 300 bps connection 105 CONNECT 600/MNP MNP 600 bps connection 106 CONNECT 1200/MNP MNP 12000 bps connection 107 CONNECT 2400/MNP MNP 24000 bps connection 108 CONNECT 4800/MNP MNP 4800 bps connection 109 CONNECT 7200/MNP MNP 7200 bps connection

5-12 V.3600

AT Commands

Code

110 CONNECT 9600/MNP MNP 9600 bps connection 111 CONNECT 12000/MNP MNP 12000 bps connection 112 CONNECT 14400/MNP MNP 14400 bps connection 113 CONNECT 16800/MNP MNP 16800 bps connection 114 CONNECT 19200/MNP MNP 19200 bps connection 115 CONNECT 21600/MNP MNP 21600 bps connection 116 CONNECT 24000/MNP MNP 24000 bps connection 117 CONNECT 26400/MNP MNP 26400 bps connection 118 CONNECT 28800/MNP MNP 28800 bps connection 119 CONNECT 31200/MNP MNP 31200 bps connection 120 CONNECT 32000/MNP MNP 32000 bps connection 121 CONNECT 33600/MNP MNP 33600 bps connection 122 CONNECT 38400/MNP MNP 38400 bps connection 123 CONNECT 57600/MNP MNP 57600 bps connection 124 CONNECT 115200/MNP MNP 115200 bps connection 125 CONNECT 230400/MNP MNP 230400 bps connection 132 NUMBER LIST FULL The delayed telephone number list

133 xx

Message Meaning

cannot hold any more numbers.

DELAYED NUMBER

WAIT

The number is on delayed list and call is delayed for xxx minutes

Dial Commands

Dial commands let the modem originate a call to another modem. These commands can be used with either tone or pu lse di al teleph one syst ems.

Dialing — D

To dial a number, for example 555-1212, insert the D command in the dialing sequence.

AT D 555-1212

The modem dials the number, either pulse or tone, whichever is in effect, and takes the role of the originate modem.

V.3600 5-13

AT Commands

Use spaces, hyphens, parentheses, or other punctuation, except dial modifiers, to make the command line easier to read and enter. For example, these are all treated the same:

AT D 1-800-555-1212 AT D 1 (800) 555-1212 ATD18005551212

The dial modifiers are as follows.

Command Operation

T Tone dialing P Pulse dialing , Insert a long pause (2 sec or value in S8) W Wait for 2nd dial tone ! Flash (1/2 sec) R Switch to answer mode after dialing ; Return to command mode after dialing @ Wait for silence S Dial stored command line or number

Tone Dialing — T

To tone dial a number sequence, insert a T in the dial sequence.

AT D T 323-1111

In this example, the modem tone dials the telephone number. The dialing method selected remains in effect until changed.

Pulse Dialing — P

To pulse dial a number sequence, insert a P in the dial sequence.

AT D P 554-9902

Insert Long Pause — ,

T o insert a long pau se in the dialing sequence, use a comma. T his inserts a 2 second delay (or the value in register S8).

AT D P 9, 1-800-554-1000

Here the modem pulse dials a 9, pauses for the telephone system to switch to an outside line, then dials the phone number. Comma pauses may be inserted consecutively if desired.

5-14 V.3600

AT Commands

Wait for Second Dial Tone — W

To wait for second dial tone insert a W in the dialing sequence.

AT D 9 W 323-8000

Instead of using a comma pause for an outside line, wait up to 30 seconds (time specified by S7) for a second dial tone.

Hook Flash — !

To flash the switchboard, insert an exclamation mark in the dialing sequence.

AT D T 9W 323-8000 ,!, #7 377

This inserts a 0.5 second on hook condition, usually for transferring a call or similar use.

In this example, the modem tone dials a 9, waits for the second dial tone, dials the phone number, pauses, flashes to start the transfer, pauses a second time, then uses #7 to transfer the call to extension 377.

Switching to Answer Mode after Dialing — R

To switch to answer mode after dialing, use an R at the end of the dial sequence.

AT D 554-2345 R

Use this command suffix to call an originate-only modem.

Remaining in Command Mode — ;

T o remain in com mand mode af ter dialin g, p lace a semicolon at the end of the dial sequence.

AT D 234-5678;

The modem will dial the telephone number entered but will not attempt to train when the remote service answers the call.

This is used to retain control so that further dialing tones may be entered with the following:

AT DTn;

where n= additional tones to be sent.

V.3600 5-15

AT Commands

Wait for 5 Seconds of Silence — @

To wait for 5 seconds of silence (no answer back tone) after accessing an electronic service, use the @ command in the dialing sequence.

AT D 399-4700 @ 2251 ;

In this example the modem dials the number and, after the connection, waits for 5 consecutive seconds of silence. The modem then sends service code 2251 and returns to command mode for further input.

For example, you might enter a dollar amount for a banking transaction by entering

AT D 1400 ;

This sends the sequence 1400 and then returns to the command mode for further entries, according to the requirements of the banking service.

Dialing a Stored Telephone Number — Sn

To dial one of the previously stored numbers, enter Sn where n represents a stored telephone number location between 1 and 9.

AT D S9

In this example, the number stored in location 9 is dialed.

Note

DS and DS1 are the same location.

Autodial Number Location — *AUn

The *AUn command selects stored number n (n=1 to 9) to be autodialed. This is the autodial number, which is used for any autodial application.

Voice Calls

T o make a voice call, dial the number with the telephone. To use the dial command for the call, enter the following dialing sequence:

AT D (number);

The ; modifier recalls the command mode and pr events the modem from training. The remote site must be answered by the telephone for the voice call to be successful.

5-16 V.3600

AT Commands

Switching from Voice to Data

After dialing, place the modems at both ends in data mode by pressing the TALK/DATA button. The *DA1 command can also be used to change from talk mode to data mode.

Answering A Call

There are three ways to answer a call for a data connection:

• Manually

•AT Command

• Autoanswer

Manual Answer

When the phone rings, answer by pressing the TALK/DATA button.

AT Command Answer — A

The modem can be made to answer a call by entering ATA when the phone rings.

Autoanswer — S0

Autoanswer is controlled by register S0. S0 determines which ring the modem answers on. S0 can be loaded with a value between 1 and 255 for autoanswer. Entering ATS0=0 disables autoanswer. Decide which ring the modem is to answer on and set S0 to that decimal value.When S0 is one or greater, the modem automatically answers on the selected ring and connects with the calling modem .

Note

If the modem is set to respond to DTR the DTR signal must be on for autoanswer to work.

Caller ID — *ID

If the telephone company is providing Caller ID services to the local phone line, the V.3600 can report Caller ID to the DTE.

V.3600 5-17

AT Commands

Note

The communications software package may need

reconfiguring to look for the “Caller Number:” message prefix so that it knows when to look for a phone number.

Command Operation

*ID Disable Caller ID *ID1 Enable Caller ID

When Caller ID is enabled, one of the messages in T able5-2 appears on the computer screen after the first RING message:

Table 5-2. Caller ID Messages

The modem sends this message... If:

CALLER<sp>NUMBER:(505)5551313

CALLER<sp>NUMBER:OUT<sp> OF <sp>AREA

CALLER<sp>NUMBER:PRIVATE Delivery was blocked by

CALL FAILURE<sp>NUMBER: ERROR

The number was delivered by the phone company

The number was not available from the phone company

the caller The number was received

in error

If the telephone company provides Enhanced Caller ID, the caller's name appears after the caller phone number.

Distinctive Ring — *DR

If the telephone company is providing distinctive ring service to the local phone line, the V.3600 can report the type of ring to the DTE. data communications software package must allow distinctive ring.

Caller ID and Distinctive Ring are compatible only with USA

standards.

5-18 V.3600

* The

AT Commands

Command Operation

*DR=0 Disable Distinctive Ring *DR=1 Enable Distinctive Ring

When distinctive ring is enabled, one of the messages in Table 5-3 appears on the DTE instead of the regular RING message:

Table 5-3. Distinctive Ring Messages

The modem sends this message... If the Ring Was a:

RING A Single ring (1 ring burst) RING B Double ring (2 ring bursts) RING C Triple ring (3 ring bursts)

Terminal Interface Commands

The EIA-232 interface connects the modem and DTE. Terminal interface commands control the action of the modem and the terminal in response to the signals being exchanged on the interface pins. Refer to Table 2-1.

Data Carrier Detect — &C

When using DCD to indicate a valid carrier, use the &C1 command. Some terminals and other devices require DCD on in order to communicate with the modem; if so, use the &C command.

Command Operation

&C DCD always on &C1 DCD on when modem recognizes remote modem

carrier or, if enabled, when protocol negotiation is

complete. &C2 DCD on except for 5 seconds after disconnect &C3 DCD follows RTS on remote modem (simulated

switched carrier V.13).

Note

AT&C3 is used to simulate switched carrier operation.

V.3600 5-19

AT Commands

Note

For simulated switched carrier operation &C3 must be selected on both modems. Not available in the B103 and V.21 modulation modes.

Data Set Ready — &S

These commands control the DSR signal generated by the modem to indicate that the modem is ready for operation. DSR must be on for some terminals and devices to communicate with the modem.

Command Operation &S DSR always on &S1 DSR on when off hook in data mode &S2 DSR off for 5 seconds after disconnect then returns

to on

&S3 DSR follows off hook (OH) signal

Data Terminal Ready — &D

In data mode DTR may be used for modem control.

Command Operation

&D The modem ignores DTR. &D1 The modem goes to command mode from data

mode when DTR goes from on to off.

&D2 Disconnects when DTR goes from on to off;

disables autoanswer while DTR is off.

&D3 Disconnects, recalls command mode, and resets the

modem to a stored configuration when DTR goes from on to off. In dial line mode the modem disconnects; in leased line, the modem retrains.

Note

If DTR controls dialer is selected, selecting DTR active will cause an autodial after an off-to-on transition of DTR.

5-20 V.3600

AT Commands

Serial Port Ring Indicator (Pin 22) — \R

The \R commands determine how the ring indicate signal operates on pin 22 of the EIA-232 DTE connector.

Command Operation

\R Causes ring indicate signal on pin 22 to turn on

(high) during each ring and remain on during the call

\R1 Causes ring indicate signal on pin 22 to turn on

(high) during each ring and turn off (low) when the call is answered

Request to Send / Clear to Send — &R

When the modem is operating in nonbuffered mode (direct mode) or in synchronous mode, &R enables the RTS-to-CTS delay determined by the value in S26. &R1 forces CTS high and the modem ignores RTS (default). With &R2 selected, CTS goes high when carrier is detected. &R9 forces CTS to follow the state of RTS without delay.

Command Operation &R Enables RTS-to-CTS delay &R1 CTS forced on &R2 CTS follows DCD &R9 CTS equals RTS

Note

RTS/CTS delay is not valid in buffered mode or with error control enabled.

Note

With &R2 selected, XON/XOFF is the only valid method of flow control and &C and &C1 are the only valid carrier detect options.

V.3600 5-21

AT Commands

DTE Controlled Fallback Rate (Pin 23) — *FB

Pin 23 of the EIA-232 DTE connector provides signal input to the modem for DTE fallback. If the modem is not using DTE fallback, set this option to ignore pin 23. To cause the modem to act on high/low levels of pin 23, enable this option. Negative level forces a higher rate for primary data rate; positive forces a lower rate providing a fallback rate.

Command Operation

*FB Ignore pin 2 3 *FB1 Transition on pin 23 changes speed

General Commands

This series of commands controls various standard options that in most cases apply to any mode of operation.

Changing from Data Mode to Command Mode — +++

To exit data mode and go to online command mode, press the escape character three times (+ is the default). Pause for the length of time set by register S12 (1 second is the default) before and after the +++ to ensure the modem recognizes the escape command.

This sequence temporarily suspends data mode transmissions and allows command mode operations without breaking or otherwise disturbing the telephone li ne connection. The mo dem responds with OK when it detects the escape code. Return to data mode by entering the O command.

Note

The AT command set must be enabled.

Local Character Echo — E

Type AT without a carriage return. If the screen shows AT character, echo is correct. Proceed with other commands as desired.

If the screen shows AATT, enter the E command to correct the double characters or disable character echo by the modem.

5-22 V.3600

AT Commands

If the screen shows no characters, enter the E1 command to turn modem echo on or enable local echo on the terminal.

Command Operation

EEcho off E1 Echo on

Online Character Echo — F

In some lower speed modems the F command determines if characters are echoed to the DTE from the modem when online. This function is generally controlled b y the comm uni cat ion s sof t ware . Th e mo dem d oes not support online character echo.

Hanging Up — H, H1

T o end a call, enter the H command. This tells the modem to disconnect and go on hook. The modem must be in command mode to use this command.

Enter the H1 command to take the modem off hook. The modem automatically goes off hook when a dial command is keyed in.

Fast Disconnect — H2, H3

The results of the H command can be modified by the H2 and H3 commands. H2 or H3 will not cause a hang up but will affect the method of hanging up the next time the H command is issued. If H2 is entered, the H command will hang up according to CCITT V.32 standards. If operating in V.32 bis mode the H2 command could t ake several seconds. If H3 (the fast command) is entered, the H command will hang up much more rapidly at those speeds.

Command Operation

H The modem hangs up. H1 Forces modem off hook H2 Sets H command to normal hangup procedure (l on g

space, cleardown, protocol)

H3 Sets H command to fast hang up

V.3600 5-23

AT Commands

EPROM Check — I

PC software packages may issue the I command to verify the modem will support all commands needed by the software package. The modem returns ASCII characters representing the model and revision level. To request the checksum to be calculated on the EPROM, enter the I1 command. The modem returns four ASCII characters representing the cyclic redundancy check (CRC) in hexadecimal form. Enter the I3 command to request the product version.

Command Operation

I Request product code I1 Request EPROM checksum value I3 Request product version I4 Returns Motorola V.3600 I5 Last disconnect reason

Speaker Volume L

The L commands offer three volume levels.

Command Operation

L, L1, L2 Speaker volume low L3 Speaker volume high

Speaker Control — M

The M commands enable or disable the speaker for monitoring purposes.

Command Operation

M Disables the speaker M1 Disables the speaker while receiving a carrier signal M2 Speaker always on M3 Disables the speaker while dialing and after a car-

rier is detected

5-24 V.3600

AT Commands

Return Online — O

Use the O command when you are operating in the online command mode and need to return to data mode. It returns the modem to the same mode (originate or answer) that it was in before escaping to the (on line) command mode. Enter the O1 command to cause a retrain to occur before going back to data mode.

Long Space Disconnect — Y

One method of disconnecting two modems is called long space disconnect. When any disconnect condition is detected by the local modem, it will send 4 seconds of data space condition to the remote modem before disconnecting. This signals the remote modem to disconnect. The local modem will disconnect if it receives 1.6 or more seconds of data space condition from a remote modem. If break sequences of 1.6 or more seconds are to be sent, enter the Y command to disable this feature and prevent unintentional disconnects.

Note

This option must be disabled if SDLC NRZI data is used.

Command Operation

Y Long space disconnect off Y1 Long space disconnect on

V.22 bis Guard Tones — &G

Guard tones are not used in the United States. If required where operating the unit, select the appropriate guard tone.

Command Operation

&G No guard tone &G1 550 Hz guard tone &G2 1800 Hz guard tone

Asynchronous / Synchronous Mode Selection — &M

The &M commands select synchronous or asynchronous operation and synchronous dial method .

V.3600 5-25

AT Commands

Use register S30 to select NRZ/NRZI for data format if using SDLC.

Comman d Operation

&M Async data/dialer mode (V.25 bis disabled) &M1 Sync data mode / async dialer &M2 Sync data mode / DTR dials if active &M3 Sync data mode / manual dial &M4 Sync data mode (ASCII) with V.25 bis BISYNC dialer &M5 Sync data mode (NRZ) with V.25 bis SDLC dialer &M6 Sync data mode with V.25 bis async dialer &M7 Async data mode with V.25 bis async dialer &M8 Sync data mode (EBCDIC) with V.25 bis BISYNC dialer &M9 Sync data mode (EBCDIC, NRZ) with V.25 bis async

dialer

&M10 Sync data mode (ASCII, NRZI) with V.25 bis SDLC

dialer

&M11 Sync data mode (EBCDIC, NRZI) with V.25 bis SDLC

dialer

IMPORTANT: Synchronous DTE must be available to communicate with the modem if the V.25 bis dialer is enabled.

Make / Break Dial Pulse Ratio — &P

Use the &P command for the dial pulse to be on for 39% and off for 61% of one cycle. Use the &P1 command for the dial pulse to be on for 33% and off for 67% of one cycle.

Command Operation

&P 39% : 61% US and Canada &P1 33% : 67%

5-26 V.3600

AT Commands

Synchronous T ransmi t Clock Source — &X

The &X commands select internal, external, or receive clock as the transmit clock source.

Command Operation

&X Internal clock &X1 External clock &X2 Receive clock

V.34 Rate Selection Thresholds — *TH

The modulation dynamically selects the optimum bit rate to run, based on line quality.

Command Operation

*TH Low V.34 threshold (10 *TH1 Medium V.34 threshold (10 *TH2 High V.34 threshold (10

commands sets the V.34 rate selection thresholds. The V.34

*TH

- 6

BER)

- 4

BER)

- 2

BER)

V.34 Asymmetric Bit Rates — *AS

The *AS command enables or disables the V.34 asymmetric bit rate capability. This feature allows the modem to run different bit rates on the receiver and transmitter.

Command Operation

*AS Disable V.34 asymmetric bit rates *AS1 Enable V.34 asymmetric bit rates

Modulation *MM

The *MM command sets the current modulation type to use when attempting to make a connection. Using this command automatically selects the maximum DCE speed (%B) for the selected modulation.

Command Operation *MM Automode (typically used on dial line) *MM1 V.21 *MM2 B103 *MM3 Reserved *MM4 B212A

V.3600 5-27

AT Commands

Command Operation *MM5 V.22 bis *MM6 V.27 bis 4-wire leased only *MM7 Reserved *MM8 V.29 4-wire leased only *MM9 Reserved *MM10 V.33 4-wire leased only *MM11 V.32 bis *MM12 V.34

Maximum DCE Speed — %B

The %B commands set the originating DCE speed to follow the DTE speed. When originating a call the two modems will not connect at a speed faster than the lower DCE speed setting of the two modems. To allow the modem to transmit data at a speed different from DTE speed, enter the %Bn command where n=1 to 18.

Command Operation

%B Use DTE speed %B1 300 bps %B2 1200 bps %B3 2400 bps %B4 4800 bps %B5 9600 uncoded bps * %B6 9600 bps %B7 7200 bps %B8 12000 bps %B9 14400 bps %B10 600 bps %B11 16800 bps %B12 19200 bps %B13 21600 bps %B14 24000 bps %B15 26400 bps

5-28 V.3600

AT Commands

Command Operation (Continued)

%B16 28800 bps %B17 31200 bps %B18 33600 bps

Valid for V.32 bis modulation only

Note

Use the %B command after the *MM command when specific modulations are required.

Minimum DCE Speed — %L

If the modem connects at a rate lower than the minimum DCE speed, it disconnects the link automatically.

Command Operation

%L Disabled %L1 Disabled %L2 1200 bps %L3 2400 bps %L4 4800 bps %L5 9600 uncoded bps * %L6 9600 bps %L7 7200 bps %L8 12000bps %L9 14400 bps %L10 600 bps %L11 16800 bps %L12 19200 bps %L13 21600 bps %L14 24000 bps %L15 26400 bps %L16 28800 bps %L17 31200 bps %L18 33600 bps

Valid for V.32 bis modulation only

V.3600 5-29

AT Commands

Auto Retrain — %E

This option allows the modem to autom a tically retrain in response to poor received signal quality without reconnecting. The modem always responds to a retrain request from the remote modem.

Command Operation

%E Disable auto retrain %E1 Enable auto retrain

Automatic Rate Adaption — %R

Automatic rate adaption (ARA) allows the modem to automatically decrease the DCE rate when the allowable bit error rate is exceeded. If the line condition improves the modem automatically increases the rate.

Select this feature by front panel operation or AT command. Options

include: disabled (factory default), low (BER= 1 in 10

(BER= 1 in 10

), high (BER= 1 in 103).

), medium

The following guidelines apply to automatic rate adaption:

• Automatic rate adaption is disabled during direct mode.

• Manual rate adaption is disabled from the front panel when automatic rate adaption is enabled.

• Only one increment or decrement in the DTE rate is allowed at a time during rate adaption from the initiating modem.

• When online, initiator rate adaption occurs a maximum of every 12 to 14 seconds from the last occurrence of a rate adaption.

• After the modem drops data rate because of poor signal quality, the line must improve by approximately 2.5 dB before an increase in rate can occur.

5-30 V.3600

AT Commands

Command Operation

%R Disab le automatic rate adaption %R1 Enable automatic rate adaption using low BER: 1 in 10 %R2 Enable automatic rate adaption using medium BER: 1 in

%R3 Enable automatic rate adaption using high BER: 1 in 10

Manual Rate Adaption — *RR

The *RR command forces the modem to re-adapt the DCE rate of the remote modem.

Command Operation

*RR Rate adaption to 2400 *RR1 Rate adaption to 4800 *RR2 Rate adaption to 7200 *RR3 Rate adaption to 9600 *RR4 Rate adaption to 12000 *RR5 Rate adaption to 14400 *RR6 Rate adaption to 16800 *RR7 Rate adaption to 19200 *RR8 Rate adaption to 21600 *RR9 Rate adaption to 24000 *RR10 Rate adaption to 26400 *RR11 Rate adaption to 28800 *RR12 Rate adaption to 31200 *RR13 Rate adaption to 33600

Product Revision Level %V

The %V command displays the product revision level.

V.3600 5-31

AT Commands

Online Quick Reference — $H

The $H command displays an AT command set quick reference. The Enter key terminates the page displays and any other key scrolls

through the pages.

Command Operation

$H Displays online quick reference $H=<string> Search online quick reference for string.

Product Serial Number — $V

The $V command displays the product serial number.

Talk / Data — *DA

The *DA commands select talk or data mode.

Command Operation

*DA Switches modem to talk *DA1 Switches modem to data

V.32 Fast Tr ain — *FT

The V.32 fast train option is used to reduce training time when operating over high quality, limited distance dial, or 2-wire leased lines.

Command Operation

*FT Disable fast train *FT1 Enable fast train

Incoming Call — *IC

The *IC command makes the modem disregard an incoming call.

Line Current Disconnect — *LC

Dial line operation only. The modem can be configured to disconnect upon loss or interruption of telephone line current.

Command Operation

*LC Line current disconnect off *LC1 Line current disconnect short (8 ms) *LC2 Line current disconnect long (90 ms)

5-32 V.3600

AT Commands

Disable AT Command Set — *NT

The *NT command disables the AT command set. The *NT1 command allows the user at a remote modem to enable AT

command operation of another modem via remote configuration.

Command Operation

*NT Disable AT command set *NT1 Enable AT command set at remote site

If the AT command set of a local modem is accidentally disabled and must be recovered locally, reset the options through the front panel LCD, Main Menu #5, submenu

“AT COMMAND SET” section on page 4-8.

CHANGE DTE OPTIONS?,

Dial Line Transmit Level — *TDn

Command Operation

*TDn Sets dial line TX level to n where n is a number 9

through 30 correspondi ng to a TX level of -9 to -30 dBm

Private Line Operation

Note

For a 2- or 4-wire leased line connection to succeed, one modem must be configured as forced answer and the other modem as normal originate. Both modems should have only one protocol, MNP or LAPM, enabled and Protocol Fallback must be disabled. DCE line speed must be the same for both modems.

4-Wire Operation

In 4-wire operation, the modem is a full-duplex, leased-line modem requiring a dedicated 4-wire leased line. Only point-to-point dedicated leased lines are supported. The 4-wire leased line connects to the TELSET/LEASED LINE jack on the modem rear panel. Dialing is not necessary. When connected via leased line the modems will train and begin communicating with each other. The DIAL jack can be used to connect a 2-wire dial-up line for dial backup.

V.3600 5-33

AT Commands

Note

The V.3229, V.3227, V.3225, and V.3257 modems use V.33 as the modulation type. The V.3600 must be set up to V.33 to connect to these modems.

2-Wire Operation

In 2-wire operation, the modem is a full-duplex modem able to operate over 2-wire leased or PSTN lines.

2-Wire Leased Line Operation

The 2-wire leased line is connected to the TELSET/LEASED LINE jack; the DIAL jack connects to a 2-wire dial-up line for dial backup. The leased line connects the local and remote modems directly and dialing is not necessary. One of the modems must be configured for forced answer and the other for normal originate. When connected via leased line the modems will connect and begin communicating with each other.

The &L command is used to select private line (leased line) operating mode. The *OR commands select the origination or answer mode when operating in the leased line configuration.

Note

DTR must be held high in 2-wire or 4-wire leased line operation. This is accomplished by DTE control, wiring pin 20 of the digital interface cable high, or by selecting the option IGNORES DTR. If DTR is terminal controlled, loss of synchronization can be corrected by cycling DTR. This makes the modem initiate the 2-wire training sequence. DSR goes off during the training procedure.

2-Wire Dial-up Operation:

Connection to th e telepho ne network is throug h th e DIAL jack. A standard telephone can be connected to the TELSET/LEASED LINE jack for manual dialing.

5-34 V.3600

AT Commands

Dial Backup

Dial backup allows the modem to switch to a dial backup mode if the data connection on the leased line is unacceptable for communications. This can be accomplished in two ways:

• Automatic - backup due to extended loss of carrier or 4 unsuccessful retrains in 3 minutes

• Manual - user d etermined using front panel contr ols or AT commands

In leased line op erati on, if both units h ave autodial backup enabled, one must be configured for forced answer. This prevents both units from dialing if the leased line fails.

IMPORTANT: Both methods will cause the modem to dial the prestored autodial number. The originate modem will wait for five seconds and then initiate the call. The answer modem will wait for a ring. The modems then train and begin communicating over the dial-up line. If the dial connection is unsuccessful after three attempts, a retrain on the leased line will be initiated.

In manual mode, the return to leased line is only done when commanded. In automatic mode the return to leased line is initiated after the lookback time in register S28 has elapsed. To prevent unnecessary termination of the dial line connection, a leased line lookback test is performed. If the leased line is not acceptable, the dial connection is resumed with a retrain. If the leased line is acceptable, the dial connection is dropped and normal leased line mode is resumed.

When the unit attempts to return to leased line, the LCD displays LEASE LOOKBACK. If the leased line has been restored to service, data can be passed approximately 10 seconds after LEASE

LOOKBACK was initiated. The LCD will continue to display LEASE LOOKBACK for slightly more than a minute. During this time the dial

line connection is maintained if a return to dial line operation is required. When the LCD displays ON LINE again the dial line is disconnected.

Note

A diagnostic test initiated during dial backup mode terminates when the modem performs a leased line lookback.

V.3600 5-35

AT Commands

Dial / Leased Line — &L

&L selects line operation as required:

Command Operation

&L Dial (swit ched) &L1 Leased (private) 2-wire &L2 Leased (private) 4-wire

Dial Backup *DB

Command Operation

*DB Manual dial backup operation *DB1 Automatic dial backup operation

Return to Leased Line from Dial Backup — *LB

During dial backup operation, *LB makes the modem return to leased line operation.

During leased line operation with forced answer enabled, *LB makes the modem wait for a dial backup call.

Manual Dial Backup — *LD

*LD dials the autodial number if the modem is in origin ate mode with manual dial backup selected. Available in leased line operation only.

Answer / Originate — *OR

*OR forces the modem to answer o r o rigina te mod e. This option is used during 2- and 4-wire leased line operation with error correction and/or dial backup.

Command Operation

*OR Force originate *OR1 Force answer

Leased Line T ransmit Level — *TLn

Command Operation

*TLn Sets leased line TX level to n where n is a number 0

through 30 corresponding to a TX level of 0 to -30 dBm

5-36 V.3600

AT Commands

Configuration Commands

These commands recall various profiles for insertion into the active profile, store the active profile and telephone numbers in nonvolatile memory, and designate the powerup profile. Remote configuration is discussed on page 5-41.

Configuration Profiles

Modem operations are controlled by option settings selected from factory defaults stored in ROM, active settings stored in RAM, and custom settings stored in nonvolatile memory. These three code storage locations are called profiles.

Active Profile

The active profile holds the current option settings and is used by the modem for all operations and functions. Any active profile option can be changed to meet an immediate requirement. The active profile is maintained in volatile memory referred to as S-registers.

Stored Profile

When an active configuration is established that meets all operating requirements, it can be transferred to one of the stored profiles. Two stored profiles are available for greater versatility.

If the active profile has been temporarily changed it can be reset to either of the stored profiles with the Z command. The &Y command selects one of the two stored profiles to be the powerup profile.

Factory Profile

The factory configurations are stored in ROM and cannot be changed by the user; they can be transferred to the active profile and then modified to fit a specific application if needed. The &F command recalls one of the nine factory configurations.

V.3600 5-37

AT Commands

Storing a Configuration — &W

The &W commands stor e the current configuration o pt i on s in on e of two nonvolatile memory locations (Figure 5-1). The stored configurations are retained in memory even when power is off, or until &W is issued with a new configuration.

Command Operation

&W Store options to user option set 1 &W1 Store options to user option set 2

Figure 5-1. Configuration Storage and Recall

Powerup Option Set — &Y

The &Y command determines which user option set is loaded durin g powerup and re set.

Command Operation

&Y Powerup with user option set 1 &Y1 Powerup with user option set 2 &Y? Displays currently selected powerup option set

5-38 V.3600

AT Commands

Load Factory Options — &Fn

The &Fn command loads one of the existing configuration sets, providing a complete configuration for a compatible system/network environment. Refer to the Appendix H for a complete list of the options in each set.

Command Operation

&F, &F1 Load factory option set 1 (async dial-up with V.42 bis) &F2 Load factory option set 2 (async dial-up without V.42

bis) &F3 Load factory option set 3 (sync di al-up witho ut V.42 bis) &F4 Load factory option set 4 (sync 4-wire leased line

without V.42 bis) &F5 Load factory option set 5 (async 4-wire leased line with

V.42 bis) &F6 Load factory option set 6 (async 4-wire leased line

without V.42 bis) &F7 Load factory option set 7 (sync 2-wire leased line

normal originate) &F8 Load factory option set 8 (sync 2-wire leased line forced

answer) &F9 Load factory option set 9 (sync V.25 bis dialer)

Reset to Stored Configuration — Z

The Z commands reset the modem and immediately load either user option set 1 or 2 as th e curr ent con fi guration. This command saves t i me once a proven configuration is established.

Command Operation

Z Resets the modem and immediately loads user option

set 1

Z1 Resets the modem and immediately loads user option

set 2

V.3600 5-39

AT Commands

View Configuration Profiles/Received Signal Options &V

This command lets the user view th e cu rren t co nfigu ration p rof ile in the form of S-register values. &V1 displays the received signal options.

Command Operation

&V Displays configuration profiles &V1 Displays received signal options &V2 Displays active profile

Storing a Telephone Command Line — &Zx=n, CNx,n, ND

Nine stored phone number locations of up to 31 characters each are available in nonvolatile memory. Normally, one phone number per location is accommodated. However, a phone number longer than 31 characters can overflow into the next location. Any spaces remaining in the overflowed location cannot be used for another number. The stored phone number is retained until replaced by another number. Modem power can be turned off without affecting stored information.

To store a telephone command line in a location, enter the &Zx=n command where x = the location and n = the number:

AT &Z 8 = 554-1212

In this example the command sequence to dial the indicated number is stored at location 8 for later dialing.

Note

Neither the AT prefix nor the D command should follow the &Zx=n.

• &Zx=n - Stores telephone number n, including dial modifiers, at location x (0-9, up to 31 digits).

• *CNx,n - Stores telephone number n, includi ng dial m odifiers, at location x (0-9, up to 31 digits).

• *CNx,- Clears telephone number location x

• *ND - Displays the stored numbers (1-9).

5-40 V.3600

AT Commands

Retaining / Restoring Options — *RO

This option is used when the modem is shared by two or more DTEs. When options are retained, the current configuration is not altered at

disconnect. With options restored, the modem returns to the previously stored configuration on disconnect.

When options are restored at disconnect, the following commands return OK but are not executed:

• *CNStore telephone number

• &ZStore telephone number

• &FRecall factory configuration

• &WStore current configuration

Command Operation

*RO Retain options at disconnect *RO1 Restore options at disconnect

Soft Download Password — %P1, $Y

Select a numeric password to permit/inhibit software downloading via flash memory if desired. The process is detailed in Appendix H.

Command Operation

%P1=pw Set software download password to 0-99999999 %P1=D Disable software download %P1? Display software download password $Y Enable soft download flash

Remote Configuration

This mode of operation allows viewing or modifying th e options of a remote modem that supports Motorola or Motorola UDS remote configuration. Remote configuration is performed using the front panel LCD or, more commonly, AT commands from the local terminal. Remote configuration is initiated by the local (master) modem through a proprietary protocol, a security code, and an acknowledgment from the remote (slave) unit to be modified. The security code is inserted and provides protection from unauthorized entry. The modems are shipped from the factory without a security code.

V.3600 5-41

AT Commands

Note

Remote configuration is supported at all rates except 300 bps.

Remote Configuration Security

The correct security code must be received by the remote modem bef ore remote configuration can be established. Once established, the local DTE becomes a virtual terminal and can serve both local and remote modems. After starting remote configuration, the local DTE serves the remote modem.

To return DTE service to the local modem while in remote configuration, issue the +++ escape sequence.

Return DTE service again to the remote modem by issuing the O command. Switching DTE service between local and remote modems may be performed as needed.

To exit remote configuration, return DTE service to the local modem. The &T command will exit remote configuration mode.

Remote configuration may be entered immediately after dialing by placing the remote configuration command (%T=), without the = sign and followed by the security code, at the end of the dial string.

Remote Security Code — %P=

A security code prevents unauthorized access to remote configuration mode. This code is separate from low and high security passwords, which are discussed in Chapter 8 . The security code is user programmable and can be set to any value from a single 0 to any combination up to 99999999 using the %P=(desired code) command.

Example: If the remote modem security code is 12345, the local modem must include this code in the initialization string be fore the remote modem responds.

5-42 V.3600

AT Commands

Command Operation

%P= Sets security code to a value 0 to 99999999

entered after the equal sign %P? Requests local security code to be displayed %P=D Access for remote configuration is not possible

when security code is disabled %P=(blank) Clears security code

The %P=D command disables remote configuration. To enable remote configuration, insert another security code.

IMPORTANT: Do not forget your remote security code. Keep your code in a safe place. If you do forget your code, contact Technical Support. Refer to the “Calling Technical Support” section on page 12-2.

Entering Remote Configuration — %T=, &T

This mode of operation allows you to view or modify the option set of a compatible remote modem. Enter the %T= (security code of remote) command to initiate remote configur ation.

The modem is shipped from the factory with security code (blank). This allows remote configuration by using (blank) as the security code.

Command Operation

%T= This command followed by the correct security

code establishes remote configuration &T Exits remote configuration

Remote Configuration can also be specified by the dial command by placing %T (password) after the dial digits (th e equal sign is left off). For example,

ATD 555-1212%T01234

Enabling/Disabling Remote Configuration — *RA

The *RA commands enable and disable remote configuration.

Command Operation

*RA Disable remote configuration *RA1 Enab le remote configuration

V.3600 5-43

AT Commands

Remote Configuration DTE Speed — *RB

This option forces DTE speed to a particular setting, if desired.

Command Operation *RB Remote configuration DTE speed = 300 bps *RB1 Remote configuration DTE speed = 600 bps *RB2 Remote configuration DTE speed = 1200 bps *RB3 Remote configuration DTE speed = 2400 bps *RB4 Remote configuration DTE speed = 4800 bps *RB5 Remote configuration DTE speed = 7200 bps *RB6 Remote configuration DTE speed = 9600 bps *RB7 Remote configuration DTE speed = 12000 bps *RB8 Remote configuration DTE speed = 14400 bps *RB9 Remote configuration DTE speed = 16800 bps *RB10 Remote configuration DTE speed = 19200 bps *RB11 Remote configuration DTE speed = 21600 bps *RB12 Remote configuration DTE speed = 24000 bps *RB13 Remote configuration DTE speed = 26400 bps *RB14 Remote configuration DTE speed = 28800 bps *RB15 Remote configuration DTE speed = 28400 bps *RB16 Remote configuration DTE speed = 57600 bps *RB17 Remote configuration DTE speed = 115200 bps

Remote Configuration Format — *RF

Set word length, parity, and stops for remote configuration.

Command Operation

*RF 7 data bits, mark parity, 1 stop bit *RF1 7 data bits, no p arity, 2 stop bits *RF2 7 data bits, odd parity, 1 stop bit *RF3 7 data bits, even parity, 1 stop bit *RF4 8 data bits, mark parity, 1 stop bit *RF5 8 data bits, no p arity, 1 stop bit *RF6 8 data bits, odd parity, 1 stop bit *RF7 8 data bits, even parity, 1 stop bit

5-44 V.3600

AT Commands

Remote Configuration Saving or Discarding Options — *RQ

This option allows the opportun ity to discard an undesirable option.

Command Operation

*RQ Save remote configuration option selection and exit *RQ1 Discard remote configuration option selection and

exit

V.3600 5-45

Chapter 6 Protocols

CCITT V.42 bis Error Control Protocol

V.42 bis is an industry standard for error control adopted by the Consultative Committee for International Telephone and Telegraph (CCITT). The CCITT V.42 bis protocol incorporates two error control algorithms, LAPM and MNP. LAPM is a CCITT Link Access Protocol family member related to LAPB and LAPD, currently in use in other communications applications. MNP is Microcom Networking Protocol, which has become an industry standard by the large number of its users.

The use of V.42 bis requires both local and remote modems to be V.42 bis compatible. Error control protocol is transparent to the user and requires no special hardware or software. Data to be transmitted is put in a buffer so the modem can retransmit it if an error occur s. The m odem also b uffers data received from the remote modem in case an error occurs and the data is retransmitted. To avoid overfilling the buffer, flow control is used to control data between the modem and the terminal. V.42 bis protocol options can be set by AT commands.

Note

Error control protoc ols are onl y val id when us ing as ynchron ous DTE options.

Reliable Mode

When an LAPM or MNP link is established, the modem is in reliable mode. V.4 2 b is allows negotiation with a remote modem to the highest level of protocol common to both units. Both LAPM and MNP control data errors by retransmitting any block of data th at wa s corrupted in transit. LAPM is assigned highest priority, and, if not supported, then an MNP connection is attempted.

V.3600 6-1

Protocols

Auto-Reliable Mode

In auto-reliable mode the modem negotiates to the highest protocol (LAPM or MNP) common to both modems. However, if a reliable connection cannot be established, auto-reliable allows the protocol to fallback to normal mode.

Constant Speed Interface

The modem serial port adapts to the data rate of the DTE and does not change speed if the DCE-to-DCE data link connects at another speed. Therefore, the DTE-to-DCE interface speed is constant.

Data Compression

Using MNP Class 5 data compression, the modem can achieve data throughput approaching 33600 bps. With LAPM data compression, the modem can achieve data throughput approaching 115200 bps. This increase in speed is achieved by automatically analyzing the data stream and reducing the number of bits required to represent the characters. 100% error-free transmission is assured by the application of the MNP or LAPM error control protocol on the compressed data.

Compression takes place only if the modem detects that the remote modem supports compression. If not, a reliable connection is made without compression.

Although data compression is compatible with any type of data, it is most efficient for ASCII text files. For maximum throughput when using data compression, the terminal should be set to a higher speed than the connect speed with the constant speed interface on and flow control enabled. When transmitting or receiving data files in one direction, the throughput can be increased for V.42 bis by having extra buffer and more processor time with the %C2 and %C3 data compression commands.

Normal Mode

No error control, with or without constant speed DTE interface. Data is buffered.

6-2 V.3600

Motorola V.3600 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Copyright

Trademarks

Notice

Updates

Regulatory Information

FCC Fax Branding Requirements

FCC Part 15 Declaration Of Conformity

Shielded Cables

Shielded Cables

Special Requirements For Canada

Industry Canada (IC) Requirements

Ringer Equivalence Number

CANADIAN EMISSION REQUIREMENTS (V.3600, 115 Vac)

CANADIAN EMISSION REQUIREMENTS (V.3600, other versions)

Contents

Shelf-Mount Units

Features

Data Mode

Fax Mode

Software

Communications Software

Class 1 Fax Communications Software

Internet Browser

Description

Functional

Physical

RM16M Unit

Electrical Installation

AC Power Connection

DC Power Connection

DTE Connection

Telephone Line Connection

Dial Mode: PSTN Connection (DIAL jack)

Leased Line Connection (TELSET/LEASED LINE Jack)

Shelf-Mount RM16M V.3600 Installation

Option Selection

Power-Up

Placing a Call

Dialing with a Standard Telephone

Autodialing from Front Panel

Autodialing from a Terminal with the AT Commands

Answering a Call

Autoanswering

Answering Manually

Answering from Terminal with AT Command Set

Ending a Call

Ending a Call Using the Front Panel

Ending a Call from a Terminal with the AT Command Set

Reasons for Call Termination

LED Descriptions

LCD Menus

LCD Menu Operation

Front Panel Security

Command Categories

Operation Modes

Offline Command Mode

Online Command Mode

Data Mode

Sending Commands to the Modem

Creating a Command Statement — AT

Autobaud

Guidelines for Creating Command Statements

Monitor Display

Command Statement Buffer

Backspace Key

Repeating a Command — A/

Numbered Commands

Group Commands

Response Commands

Digit / Word Selection — V

Response Displays — Q

Negotiation Displays — W

Connect Message Codes — \V

Call Progress / Connect Speed Messages X

Number Code Application — *RC

Response Number Codes / Messages