Symbol CRD 1500 Manual

CRD 1500
Modem/Charging Cradle
Programmer’s Guide

2
72E-52775-01
Revision A — May 2001
Symbol Technologies, Inc. One Symbol Plaza, Holtsville N.Y. 11742
CRD 1500 Modem/Charging Cradle Programmer’s Guide

CRD 1500 Modem/Charging Cradle
Programmer’s Guide
72E-52775-01
Revision A
May 2001

ii
2001 by Symbol Technologies, Inc. All rights reserved.
No part of this publication may be reproduced or used in any form, or by any electrical or
mechanical means, without permission in writing from Symbol. This includes electronic or
mechanical means, such as photocopying, recording, or information storage and retrieval
systems. The material in this manual is subject to change without notice.
The software is provided strictly on an “as is” basis. All software, including firmware,
furnished to the user is on a licensed basis. Symbol grants to the user a non-transferable
and non-exclusive license to use each software or firmware program delivered hereunder
(licensed program). Except as noted below, such license may not be assigned,
sublicensed, or otherwise transferred by the user without prior written consent of Symbol.
Noright to copyalicensed program inwhole or in part is granted, except as permitted under
copyright law. The user shall not modify, merge, or incorporate any form or portion of a
licensed program with other program material, create a derivative work from a licensed
program, or use a licensed program in a network without written permission from Symbol.
The user agrees to maintain Symbol’s copyright notice on the licensed programs delivered
hereunder, and to include the same on any authorized copies it makes, in whole or in part.
The user agrees not to decompile, disassemble, decode, or reverse engineer any licensed
program delivered to the user or any portion thereof.
Symbol reserves the right to make changes to any software or product to improve reliability,
function, or design.
Symbol does not assume any product liability arising out of, or in connection with, the
application or use of any product, circuit, or application described herein.
No license is granted, either expressly or by implication, estoppel, or otherwise under any
Symbol Technologies, Inc., intellectual property rights. An implied license only exists for
equipment, circuits, and subsystems contained in Symbol products.
Symbol is a registeredtrademarksofSymbol Technologies, Inc.InetisatrademarkofINET,
Inc. Other product names mentioned in this document may be trademarks or registered
trademarks of their respective companies and are hereby acknowledged.
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, N.Y. 11742-1300
WWW: http://www.symbol.com

iii
Contents
About This Guide
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Notational Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Symbol Support Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
Warranty Coverage and Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
Chapter 1. AT Command Set
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
AT Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
A/, Re-execute Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
AT= x, Write to Selected S-Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
AT?, Read Selected S-Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
A, Answer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Bn, CCITT or Bell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Cn, Carrier Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
En, Command Echo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Fn, Select Line Modulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Hn, Disconnect (Hang-Up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
P, Set Pulse Dial Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Sn, Read/Write S-Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
T, Set Tone Dial Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Vn, Result Code Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Xn, Extended Result Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Zn, Soft Reset and Restore Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
AT& Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
&Dn, DTR Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
&Fn, Restore Factory Configuration (Profile) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

iv
CRD 1500 Modem/Charging Cradle Programmer’s Guide
&Gn, Select Guard Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
&Mn, Asynchronous/Synchronous Mode Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
&Rn, RTS/CTS Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
&Tn, Test and Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
&Wn, Store Current Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24
&Yn, Designate a Default Reset Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-25
&Zn=x, Store Telephone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-25
AT% Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26
%C, Enable/Disable Data Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26
%En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward. . . .1-26
%L, Line Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27
%Q, Line Signal Quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27
AT\ Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28
\An, Select Maximum MNP Block Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28
\Bn, Transmit Break to Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28
\Kn, Break Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-29
AT+ Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-33
+GCI, Country Profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-33
+MS, Select Modulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-34
Chapter 2. S-Registers
Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
S-Register Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
S0, Number of Rings to Auto-Answer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
S1, Ring Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
S3, Carriage Return Character . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
S4, Line Feed Character . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
S6, Wait Time for Dial Tone Before Blind Dialing, or After “W” Dial Modifier. . . . . . . . . . . . . . 2-6
S8, Pause Time For Dial Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
S9, Carrier Detect Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
S10, Lost Carrier To Hang Up Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
S12, Escape Prompt Delay (EPD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
S13, Check Line Quiet before Line Seize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
S14, General Bit Mapped Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
S15, Reserved. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
S16, General Bit Mapped Test Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
S17, Reserved. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
S18, Test Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
S19, AutoSync Bit Mapped Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
S20, AutoSync HDLC Address or BSC Sync Character . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
S21, V.24/General Bit Mapped Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
S22, Speaker/Results Bit Mapped Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
S25, Delay To DTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15

v
Contents
S26, RTS to CTS Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
S28, Bit Mapped Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
S30, Disconnect Inactivity Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
S31, Bit Mapped Options Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
S32, XON Character. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
S33, XOFF Character. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
S34-S35, Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
S36, LAPM Failure Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
S37, Desired Line Connection Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
S38, Delay Before Forced Hang Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
S40, General Bit Mapped Options Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
S41, General Bit Mapped Options Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
S48, V.42 Negotiation Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
S82, Break Handling Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
S86, Call Failure Reason Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
S95, Extended Result Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Index
Feedback

vi
CRD 1500 Modem/Charging Cradle Programmer’s Guide

vii
About This Guide
Introduction
The CRD 1500 Modem/Charging Cradle Programmer’s Guide provides information
necessary for developing applications for the SPT 1500/1550 using the SPT 1500 Modem/
Charging Cradle.
Notational Conventions
This document uses these conventions:
• “terminal” refers to both the SPT 1500 and SPT 1550.
• “User” refers to anyone using an application on the SPT 1500 or SPT 1550.
• “You” refers to the developer or other person using this manual as a reference to
develop applications for the SPT 1500 or SPT 1550.
• Italics are used to highlight specific items in the general text, and to identify
chapters and sections in this and related documents. It also identifies names of
dialog boxes and tabs within dialog boxes.
• Bullets (•) indicate:
• lists of alternatives or action items.
• lists of required steps that are not necessarily sequential.
• Numbered lists indicate a set of sequential steps, i.e., those that describe step-by-
step procedures.

viii
CRD 1500 Modem/Charging Cradle Programmer’s Guide
Service Information
If you have a problem with your equipment, contact the Symbol Support Center. If your
problem cannot be resolved over the phone, you may need to return your equipment for
servicing. If that is necessary, you will be given special directions.
Note:Symbol Technologies is not responsible for any damages incurred
during shipment if the approved shipping container is not used.
Shipping the units improperly can possibly void the warranty. If the
original shipping container has not been kept, contact Symbol to
have another sent to you.
Symbol Support Centers
For service information, warranty information or technical assistance contact or call the
Symbol Support Center in:
United States
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, New York 11742-1300
1-800-659-2240
Canada
Symbol Technologies Canada, Inc.
2540 Matheson Boulevard East
Mississauga, Ontario, Canada L4W 4Z2
905-629-7226
United Kingdom
Symbol Technologies
Symbol Place
Winnersh Triangle, Berkshire RG41 5TP
United Kingdom
0800 328 2424 (Inside UK)
[phone] (Outside UK)
Asia/Pacific
Symbol Technologies Asia, Inc.
230 Victoria Street #04-05
Bugis Junction Office Tower
Singapore 188024
337-6588 (Inside Singapore)
[phone] (Outside Singapore)