January 1998
MAINTENANCE
& S ERVICE GUIDE
ADDENDUM
Compaq Armada 1500
Family of Personal Computers
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Notice
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, LTE, Contura, ProLinea, QuickLock, QuickBlank are
registered in the U. S. Patent and Trademark Office. Armada is a trademark of Compaq
Computer Corporation.
Contura is registered in the Philippines Patent Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 95 is a trademark of Microsoft Corporation.
The software described in this guide is furnished under a license agreement or
nondisclosure agreement. The software may be used or copied only in accordance with the
terms of the agreement. Product names mentioned herein may be trademarks and/or
registered trademarks of their respective companies.
Maintenance and Service Guide Addendum
Compaq Armada 1500 Family of Personal Computers
First Edition (January 1998)
Spare Part Number 255011-001
Document Part Number 255318-001
Compaq Computer Corporation
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Computer Product
Description
1.1 Models and Features
The following information describes new models and features of the Compaq Armada
1500 Family of Personal Computers. Selected models include Pentium processors
with MMX technology, faster internal modem, larger hard drive, faster internal CDROM drive, and mechanical enhancements to the base enclosure. A list of standard
features and supported options are provided in Chapter 1 of the Maintenance and
Service Guide, Compaq Armada 1500 Family of Personal Computers. The following
computer models are available:
Compaq Armada 1500 Family Models
Model
Pentium
Processor
Display
Hard Memory
Drive Std / Max
1530D
Level 2
Cache
CD- Modem
Serial
ROM ( Kbps ) Configuration
133-MHz
12.1 STN
1.4-GB 16/80 MB 256-Kbyte
10X

BRX1
1530DM 133-MHz
12.1 STN
1.4-GB 16/80 MB 256-Kbyte
10X
33.6
BRX2
1535DM 133-MHz
12.1 STN
1.4-GB 16/80 MB 256-Kbyte
12X
33.6
BRX3
1540D
150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
20X

BRX5
1540DM 150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
20X
33.6
BRX6
1545DM 150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
20X
56
BT61
1560
166-MHz
12.1 STN
2.1-GB 16/80 MB 256-Kbyte


BT51
1560D
166-MHz
12.1 STN
2.1-GB 16/80 MB 256-Kbyte
20X

BT52
1560DM 166-MHz
12.1 STN
2.1-GB 16/80 MB 256-Kbyte
20X
56
BT53
1580DT 150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
10X

BM58
1580DMT 150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
10X
33.6
BM59
1585DMT 150-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
12X
33.6
BRX4
1590DT 166-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
20X

BRX7
1590DMT 166-MHz
12.1 TFT
2.1-GB 16/80 MB 256-Kbyte
20X
33.6
BRX8
1592DT 233-MHz MMX
12.1 TFT
3.2-GB 32/96 MB 512-Kbyte
20X

BT54
1592DMT 233-MHz MMX
12.1 TFT
3.2-GB 32/96 MB 512-Kbyte
20X
56
BT55
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
1.2 Features
The following features are provided on selected models:
„
EDO Dynamic Random Access Memory (DRAM) system memory: 16-MB expandable to 80MB, or 32-MB expandable to 96-MB
„
1.44-GB, 2.1-GB or 3.2-GB hard drive
„
11.3-inch Super Twisted Neumatic (STN) or 12.1-inch Thin Film Transistors (TFT) SVGA
display
„
33.6Kbps integrated modem or 56Kbps internal controllerless modem. (Both are standard on
selected models and available as an option on other models.)
„
Internal CD-ROM Drive standard on selected models and available as an option on other
models
„
Universal Serial Bus (USB) connector standard on selected models
„
2-MB video memory
„
256-Kbyte L2 Cache memory, or 512-Kbyte L2 Cache memory
„
Two standard device slots that will accommodate two types I and II and one type III PC
Cards, PCMCIA and Bus cards; Compaq Telephony modem in the top slot and ZoomedVideo in the bottom slot
The following features are provided on all models:
2
„
Supports Lithium Ion (Li-ion) and Nickel Metal Hydride (NiMH) modular battery packs
„
SoundBlaster-compatible audio controller with internal stereo speakers and internal
microphone
„
Full-size 101 key compatible keyboard including 12 function keys, 8 cursor control keys,
inverted-T cursor control keys and embedded numeric keypad
„
Four user-programmable keys
„
Touchpad pointing device
„
Operates from an internal battery pack, plus an optional battery pack in the Dualbay, or
integrated AC power that is compatible with domestic and international power sources
„
Power management and security features
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
„
Infrared interface for wireless communications with other IrDA-compliant devices at data
rates up to 4 MB/sec
„
176 pin expansion connector provides the interface to the Convenience Base options
„
Rear-panel ports provide connections for parallel and serial, external monitor,
keyboard/mouse and IrDA compliant infrared devices
1.3 Software Fulfillment
Replacement software may be ordered directly from Compaq Computer Corporation. Both the
model and the serial number of the computer are needed to identify the specific software
available.
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
1.4 External Computer Components
The following information provides new mechanical changes to the models, which are different
from earlier models
Universal Serial Bus
A Universal Serial Bus (USB) connector has been added to select models on the left side of the
computer. The connector provides an interface for USB peripheral devices.
On models without the USB connector, a plastic insert covers the connector space. The plastic
USB cover is included in spare part 254981-001, the miscellaneous spare parts kit. The kit also
ships with such items as replacement clutch covers, rubber feet, battery spacer door, etc. (See
Chapter 4 in the Maintenance and Service Guide for miscellaneous spare parts.)
Battery Spacer Door
IMPORTANT: The Battery Spacer Door, which is a component of the Dualbay compartment, has
been modified.
The new battery spacer door pushes 1pushes inward with a single motion, as compared to the
previous version 2 which pulled out and pushed inward (
Figure 1-1).
NOTE: The Battery Spacer Door is included in the miscellaneous spare parts kit (spare part
254981-001).
Figure 1-1. New Battery Spacer Door
4
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Illustrated Parts for the
Computer
4.0 Illustrated Parts for the Computer
For an illustrated parts breakdown, refer to the Illustrated Parts Map. The following information
provides new spare parts descriptions and part numbers.
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
The following tables are updated to include the new spare parts. For illustrations of spare parts,
refer to the Maintenance and Service Guide, Compaq Armada 1500 Personal Computers or
Illustrated Parts Map.
Table 4-1
System Unit
Description
Keyboard Assembly
Model(s)
Spare Part Number
US/Canada
Belgian
Brazilian
Danish
French
French Canadian
German
Italian
Japanese
Korean
Latin American
Norwegian
Portuguese
Spanish
Swedish/Finnish
Swiss
Taiwanese
UK
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
254968-001
254968-181
254968-035
254968-081
254968-051
254968-121
254968-041
254968-061
254968-191
254968-033
254968-161
254968-101
254968-131
254968-071
254968-091
254968-111
254968-034
254968-031
254978-001
All models
254979-001
254969-001
Top Cover Assembly
(keyboard cover)
Speakers
Base enclosure assembly
Base enclosure assembly
1510, 1510DM, 1520, 1520D,
1520DM, 1530D, 1530DM,
1535DM, 1550T, 1550DMT,
1575DMT, 1580DT, 1580DMT,
1590DT, 1590DMT
1540D, 1540DM, 1560DT,
1560DMT, 1590DT, 1590DMT
212535-001
Display Assembly
11.3 inch STN
12.1 inch TFT
12.1 inch TFT
12.1 inch STN
6
1510, 1510DM, 1520, 1520D,
1520DM
1550T, 1550DMT, 1580DT,
1580DMT, 1585DMT, 1590DT,
1590DMT
1592DT, 1592DMT
254966-001
1530, 1530D, 1530DM,
1535DM, 1540D, 1540DM,
1560, 1560D, 1560DM
255131-001
254967-001
255308-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 4-2
Mass Storage Devices
Description
CD-ROM
Model(s)
Spare Part Number
10X CD-ROM Drive
1510DM. 1520D, 1520DM,
1550DMT, 1530D, 1530DM,
1580DT, 1580DMT
1540D, 1540DM, 1560D,
1560DM, 1560DT, 1560DMT,
1590DT, 1590DMT, 1592DT,
1592DMT
254974-001
1510, 1510DM, 1520, 1520D,
1520DM
1530, 1530D, 1530DM,
1535DM, 1550T, 1550DMT
1540D, 1560, 1580DT,
1580DMT, 1585DMT, 1590DT
1560D, 1560DM, 1592DT,
1592DMT
254963-001
All models
254962-001
All models
All models
254959-001
254960-001
20X Max CD-ROM Drive
255215-001
Hard Drive
1.08GB, 3 inch /2.5 inch
1.44GB, 3 inch/2.5 inch
2.1-GB
3.2-GB
254964-001
255130-001
255248-001
Diskette Drive
1.44MB Diskette Drive
Battery Packs
NiMH
Li-Ion
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 4-3
Cables and Power Cords
Description
CD-ROM Cable
Modem Cable
AC Adapter, internal
AC Power Cord
RTC Battery (with cable)
Microphone
Fan
Fan
8
Model(s)
Spare Part Number
All models
All models
All models
254975-001
165224-001
254961-001
Refer to the Maintenance &
Service Guide
All models
All models
1510,1510DM,1520, 1520D,
1520DM, 1530D, 1530DM,
1535DM, 1550T, 1550DMT,
1575DMT, 1580DT, 1580DMT,
1585DMT
1540D, 1540DM, 1560, 1560D,
1560DM, 1590DT, 1590DMT,
1592DT,1592DMT
Refer to the Maintenance &
Service Guide
254971-001
254981-001
254977-001
255194-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 4-4
Standard and Optional Boards
Description
LED Board
Model(s)
Spare Part Number
11.3 inch display LED board
1510, 1510DM, 1520, 1520D,
1520DM
1550T, 1550DMT, 1580DT,
1580DMT, 1585DMT
1530, 1530D, 1530DM,
1535DM, 1540D, 1540DM,
1560, 1560D, 1560DM
1590DT, 1590DMT,
1592DT,1592DMT
All models
All models (except MMX
models)
All MMX models except as
noted below
Armada 1592
All models
254958-001
1510, 1510DM
1520, 1520D, 1520DM, 1550T,
1550DMT
1530, 1530D, 1530DM,
1535DM
1580DT, 1580DMT, 1585DMT
1540D, 1540DM
1560, 1560D, 1560DM
1590DT, 1590DMT
1592DT, 1592DMT
254949-001
255010-001
12.1 inch TFT display LED board
12.1 inch STN display LED board
12.1 inch TFT display LED board
I/O Fixture Connector
DC/DC Converter Board
DC/DC Converter Board,
2.5 / 2.45 / 2.9v
DC/DC Converter Board, 1.8v
Audio Board
System CPU Board
120-MHz processor
133-MHz processor
133-MHz processor with MMX
150-MHz processor
150-MHz processor with MMX
166-MHz processor with MMX
166-MHz processor with MMX
233-MHz MMX processor
Addendum 255318-001 to Guide 284820-001
255049-001
255189-001
255190-001
254956-001
254976-001
255161-001
255262-001
254957-001
255129-001
255071-001
255187-001
255310-001
255188-001
255246-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 4-5
Options
Description
Power Cord
Models
Spare Part Number
US/Canada/Latin America/Brazil
Australia/New Zealand
Denmark
Europe
Italy
Japan
Korea
Switzerland
UK/Singapore
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
246959-001
246959-011
246959-081
246959-021
246959-061
246959-291
246959-AD1
246959-AG1
246959-031
218079-001
All models
All models
All models
254959-001
254960-001
950970-001
Automobile Adapter
Battery Packs
NiMH
Li-Ion
Battery Charger
10
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 4-6
Miscellaneous Parts
Description
Miscellaneous Plastics Kit, includes:
Left clutch cover
Microphone/display cable cover
Right clutch cover
Battery spacer door
CD-ROM access door
Modem access door
Rubber feet
Display Logos
Hinge and Latch Kit, includes:
Model(s)
Spare Part Number
All models
254981-001
All models with integrated
CD-ROM drives
All models
All models
255013-001
254982-001
All models
254980-001
All models
All models
All models
All models
All models
254981-001
255011-001
255012-001
255097-001
255180-001
All models
255181-001
Display clutch retaining plate (2 each)
Display clutch (2 each)
Display latch (2 each)
Display latch spring (2 each)
Rubber screw covers (4 each)
Miscellaneous Screw Kit, includes
T-8, long (50 each)
T-8, short (10 each)
T-8, with Ny-Loc (4 each)
7mm (10 each)
5 mm (10 each)
Miscellaneous Plastics Kit
Maintenance and Service Guide
Illustrated Parts Map
Armada 1500 Software CD
Quick Restore Software CD for
model 1535DM
Quick Restore Software CD for
model 1585DMT
Addendum 255318-001 to Guide 284820-001
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Maintenance and Service Guide
Table 4-7
Accessories
Description
Power Cord
Models
Spare Part Number
US/Canada/Latin America/Brazil
Australia/New Zealand
Denmark
Europe
Italy
Japan
Korea
Switzerland
UK/Singapore
All models
All models
All models
All models
All models
All models
All models
All models
All models
All models
246959-001
246959-011
246959-081
246959-021
246959-061
246959-291
246959-AD1
246959-AG1
246959-031
218079-001
Automobile Adapter
Battery Packs
NiMH
Li-Ion
254959-001
254960-001
950970-001
Battery Charger
Convenience Bases
Convenience Base Pass-Through model
Convenience Base Ethernet model with
10BaseT
Convenience Base BNC model with
10BaseT
Monitor Stand
100BaseT Ethernet Upgrade
254988-001
254987-001
254989-001
254990-001
225436-001
Modem
33.6 Data/Fax Modem with install diskette
1510DM, 1520DM,
1530DM, 1535DM,
1540DM, 1550DMT,
1580DMT, 1585DMT,
1590DMT
North America
255014-001
Japan
255014-191
Asia
56K Voice / Fax / Data Modem
(controllerless, integrated)
1560DM, 1592DMT
255014-371
255245-001
Modem Cable (RJ11)
All models
165224-001
All models
All models
All models
All models
All models
All models
All models
All models
All models
255135-001
255135-011
255135-081
255135-021
255135-061
255135-291
255135-AD1
255135-031
255135-111
10’ AC Power Cord Extension
US
Australia
Denmark
Europe
Italy
Japan
Korea
UK
Singapore
12
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Option Spares
Table 4-8
Accessories
Description
Memory Expansion Board
Models
Spare Part Number
8MB
16MB
32MB
64MB
All models
All models
All models
All models
272108-001
272110-001
220583-001
273158-001
All models
All models
All models
254974-001
255215-001
255245-001
All models
255014-001
CD-ROM Drive
10X CD-ROM Drive
20X Max CD-ROM Drive
56K Voice/Fax/Data Modem
(Controllerless, Integrated)
33.6 Data/Fax Modem (Integrated)
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
9.0 Specifications
This chapter provides specifications on the following new components:
14
„
2.1-GB Hard Drive
„
3.2-GB Hard Drive
„
20X Max CD-ROM
„
12.1-inch TFT, SVGA display
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 9-1
Hard Drives
Standard Model Configurations
2.1-GB
3.2-GB
Physical
2.16
3.24
Logical
2.1
3.2
Drive Type
65
65
12.7mm
12.7mm
Inches
3.94 x 2.75
4.01 x 2.75
Millimeters
100.2 x 69.85
102 x 69.85
Media (Mb/s)
38.1 to 54.8
51.7 to 83.4
Interface (Mb/s)
16.6
33.3
1:1
1:1
Formatted Capacity Per Drive (MB)
Drive Height
With drive frame (mm)
Drive Size
Transfer Rate
Sector Interleave
Typical Seek Time (including setting)
Single Track (ms)
4
4
Average (ms)
13
13
Full Stroke (ms)
23
23
4,200
4,000
Cylinders
4928
6975
Data Heads
6
5
Sectors per Track
110-180
144-240
Bytes per Sector
512
512
Cylinders
4200
6304
Data Heads
16
16
Sectors per Track
63
63
Bytes per Sector
512
512
128
128
Disk Rotational Speed
Physical Configuration
Logical Configuration
Buffer Size
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 9-2
20X Max CD-ROM Drive
Applicable Disc
CD-ROM mode 1, mode 2
CD-Digital Audio
CD-XA mode 2 (Form 1, Form 2)
CD-I mode 2 (Form 1, Form 2)
CD-I Ready
CD-Bridge
CD-WO (fixed / variable packets)
Photo CD (single / multi-session)
Center Hole Diameter
15mm
Disc Diameter
12cm, 8cm
Disc Thickness
1.2mm
Track Pitch
1.6 µm
Laser
Beam Divergence
53.5 + 1.5 degrees
Output Power
0.13 + 0.1 mw
Type
Semiconductor Laser GaA1As
Wave Length
780 nm + 25 nm
Access Time
Random
< 150 ms
Full Stroke
< 600 ms
Audio Output Level
Line Out
Headphone
Cache Buffer
0.7 Vrms
None
256 KB
Data Transfer Rate
Sustained, quad
300 MB/sec
Sustained, single
150 KB/sec
Burst
8.3 MB/sec
Startup Time
< 10 seconds typical
Capacity
16
Mode 1, 12 cm
550 MB
Mode 2, 12 cm
640 MB
8 cm
180 MB
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table 9-3
12.1-inch TFT, SVGA Display
U.S.
Metric
Height
7.24 in.
184 mm
Width
9.7 in.
245 mm
Number of Colors
16 million
16 million
Contrast Ration
Over 100:1
Over 100:1
Pitch
0.30 x 0.30 mm
0.30 x 0.30 mm
Format
800 x 600
800 x 600
Configuration
RGB Stripe
RGB Stripe
Dimensions
Pixel Resolution
Backlight
Addendum 255318-001 to Guide 284820-001
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130 cd/m
130 cd/m2
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Appendix C
Modem Commands
This section includes modem commands for the 56Kbps internal modem. The telephony modem
is designed to operate with the preinstalled software in the computer. The modem is compatible
with Microsoft Windows 95 (and later) or Windows NT 4.0.
Table C-1
Modem Commands
Command
Description
A
Answer Command. A instructs the modem to go off-hook and answer an incoming call.
Bn
Communication Standard Setting. Bn determines CCIT vs. Bell standard.
0:
Selects CCITT V .22 mode when the modem is at 1200bits/s
1:
Selects Bell 212A when the modem is at 1200bits/s (default).
2:
Unselects V23 reverse channel (same as B3).
3:
Unselects V23 reverse channel (same as B2).
15: Selects V.21 when the modem is at 300 bits/s
16: Selects Bell 103J when the modem isat 300 bits/s (default).
Result Codes:
OK
n=0, 1, 15, 16
ERROR Otherwise
Cn
Carrier Control. The modem will accept the C1 command without error in order to assure
backward compatibility with communications software that issues the C1 command.
However, this modem does not support the C0 command. The C0 command may instruct
some earlier modems (such as the Smartmodem 1200) to not send carrier (ie., it puts them
in a receive-only mode).
0:
Transmit carrier always off.
1:
Normal transmit carrier switching.
Result Codes:
OK
n=1
ERROR Otherwise
Continued
18
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-1, Modem Commands, Continued
Command
Description
Dn
Dial Command. Dn instructs the modem to begin the dialing sequence. The dial string (n,
including modifiers and the telephone number) is entered after the ATD command. A dial
string can be up to 40 characters long. Any digit or symbol (0—9, *, #, A, B, C, D) may be
dialed as touch tone digits. Characters such as spaces, hyphens, and parentheses do not
count—they are ignored by the modem and may be included in the dial string to enhance
readability.
The following may be used as dial string modifiers:
L
Redials last number. Should be the first character following TD, ignored otherwise.
P
Pulse dialing
T
Touch-tone dialing (default).
V
The modem switches to speakerphone mode and dials the number. An ATH command
may be used to disconnect the voice call.
,
Pause during dialing. Pause for time specified in Register S8 before processing the
next character in the dial string.
W
Wait for dial tome. Modem waits for a second dial tone before processing the dial
string.
@ Wait for quiet answer. Wait for five seconds of silence after dialing the number. If
silence is not detected, the modem sends a NO ANSWER result code back to the user.
!
Hook flash. Causes the modem to go on-hook for 0.5 seconds and then return to offhook.
;
Return to command mode. Causes the modem to return to command mode after
dialing the number, without disconnecting the call.
^
Disable data calling tone transmission.
A, B, C, D
Letters (DTMF tone dialing mode only)
S=n Dial a telephone number previously stored using the &Zn=x command
(see the &Zn=x command for further information). The range of n is 0—3.
$
Bong tone detection.
The dial modifiers listed above (except S) shall be saved when dial strings are stored. The
T and P modifiers are allowed anywhere in the dial string so signaling methods may be
changed after some digits are already sent.
En
Echo Command. En controls whether or not the characters entered from your computer
keyboard are echoed back to your monitor while the modem is in command mode.
0: Disables echo to the computer.
1: Enables echo to the computer (default).
Result Codes:
OK
n=0, 1
ERROR Otherwise
Fn
Online Echo Control. Fn determines if the modem will echo data from the DTE. This
modem does not support the F0 version of the command. However, the modem will accept
F1, which may be issued by older communication software, to assure backward
compatibility.
0:
Online data character echo enabled (NOT SUPPORTED, ERROR).
1:
Online character echo disabled.
Result Codes:
OK
n=1
ERROR Otherwise
Continued
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-1, Modem Commands, Continued
Command
Description
Hn
Hook Control. Note that in some countries H1 will be limited by a timer (i.e., the maximum
time off-hook without a carrier negotiation). In those cases, S7 or a hardcoded constant
will be used for the upper limit of this timer.
0:
Modem goes on-hook (default).
1:
Modem goes off-hook.
Result Codes:
OK
n=0, 1
ERROR Otherwise
In
Request ID Information. In desplays specific product information about the modem.
0:
Returns default speed and controller firmware version, same as I3.
1:
Calculates ROM checksum and displays it on the DTE (ie. F15D).
2: Performs a ROM check and calculates and verifies the checksum displaying OK or
ERROR.
3:
Returns the default speed and the controller firmware version, same as I0.
4:
Returns firmware version for data pump (ie. 57).
5: Returns the board ID: software version, hardware version, and country ID.
Birdie Code
Default Country Country
Country ID
Configuration
Support
Code(zz)
String (ccc)
-001
North America
19
NA
-002
Japan
10
JPN
-003
APD
14
SNG
9: Returns 2 or 3 character country ID string and 1 to 2 character version of country
parameter table. (ie. ccc Ver. v).
Ln
Mn
Monitor Speaker Volume. Ln sets the speaker volume to low, medium, or high.
0:
Selects low volume.
1:
Selects low volume.
2:
Selects medium volume (default).
3:
Selects high volume.
Monitor Speaker Mode. Mn turns the speaker on or off.
0: The speaker is off
1: The speaker is on until the modem detects the carrier signal (default)
2: The speaker is always on when modem is off-hook.
3: The speaker is on until the carrier is detected, except while dialing.
Nn
Modulation Handshake. Nn controls whether or not the local modem performs a negotiated
handshake at connection time with the remote modem when the communication speed of
the two modems is different. The N command affects the initial physical layer connection
only. It does not affect subsequent speed changes made by V.32bis or MNP class 10
operation.
0:
When originating or answering, this is for handshake only at the communication
standard specified by S37 and the ATB command.
1:
When originating or answering, begin the handshake only at the communication
standard specified by S37 and the ATB command. During handshake, fallback to a
lower speed may occur (default).
Continued
20
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-1, Modem Commands, Continued
Command
On
Description
Return On-line to Data Mode.
0: If the modem is in the on-line command state, the O0 command causes it to go to the
on-line state of the previously established connection. If the modem is off hook in the
idle (off-line command) state, then the O0 command causes it to go to the handshaking
state. Originate or answer mode is determined from the last D or A command, or R dial
modifier that was selected. If the modem is on hook in the idle state, or if the modem is
a test state, then the “ERROR” result code is returned, and no action is taken.
1: If the modem is in the on-line command state, the O1 command causes it to go to the
on-line state of the previously established connection, and retrain its adaptive equalizer
(if applicable). If the modem is off hook in the idle (off-line command) state, then the O1
command causes it to go to the handshaking state. Originate or answer mode is
determined from the last D or A command, or R dial modifier that was selected. If the
modem is on hook in the idle state, or if the modem is a test state, then the “ERROR”
result code is returned, and no action is taken
3: If the modem is in the on-line command state, the O3 command causes it to go to the
on-line state of the previously established connection, and issue a rate re negotiation
sequence (if applicable). If the modem is off hook in the idle (off-line command) state,
then the O3 command causes it to go to the handshaking state. Originate or answer
mode is determined from the last D or A command, or R dial modifier that was selected.
If the modem is on hook in the idle state, or if the modem is a test state, then the
“ERROR” result code is returned, and no action is taken
Also note that as the O command returns the modem to the online state, the protocol,
compression, and connect message (as enabled by the W command and S95) will be
displayed as if the connection was just being made.
P
Select Pulse Dialing. P will apply to all subsequent D commands, until altered by the T
command or the T dial modifier. Note that P is both a command and a dial modifier.
Qn
Result Code Control. Result codes are informational messages sent from the modem and
displayed on your monitor. Basic result codes are OK, CONNECT, RING, NO CARRIER, and
ERROR. The ATQ command allows the user to turn result codes on or off.
0: Enables modem ot send result codes to the computer (default).
1: Disables modem from sending result codes to the computer.
Sr
Select S-register r. Sr is the command to query or write to the selected register.
Sr=n:
Select S-register r, and write value n to S-register r. Limited to writeable S-registers.
Sr?: Select S-register r, read and report its value.
T
Select Tone Dialing. T is both a command and a dial modifier. Applies to all subsequent D
commands, until modified by the P command or the P dial modifier. This command
instructs the modem to send DTMF tones while dialing. This is the default setting.
Vn
DCE Response Format. Vn controls whether result codes (including call progress and
negotiation progress messages) are displayed as words or their numeric equivalents.
0: Displays result codes as digits.
1: Displays result codes as text (default).
Wn
Result Code Option.
0: CONNECT result code reports DTE speed. Disable protocol result code.
1: CONNECT result code reports DTE speed. Enable protocol result code
2: CONNECT result code reports DCE speed. Enable protocl result codes (default).
Continued
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-1, Modem Commands, Continued
Command
Description
Xn
Result Code Selection and Call Progress Monitoring. Xn enables tone detection options
used in the dialing process. As these functions are chosen, the modem chip set’s result
codes are also affected. Therefore, this command is frequently used to control the modem
chip set's responses. The primary function of this control is to control the modem chip
set’s call response capabilities.
Ext. Result Code Dial Tone Detect
Extended Result Codes
Busy Tone Detect
X0: Disable
Disable
Disable
X1: Enable
Disable
Disable
X2: Enable
Enable
Disable
X3: Enable
Disable
Enable
X4: Enable
Enable
Enable (Default)
X5: Enable
Enable
Enable
X6: Enable
Enable
Enable
X7: Disable
Enable
Enable
Disabled: Displays only the basic result codes OK, CONNECT, RING, NO CARRIER, and
ERROR
Enabled: Displays basic result codes, along with the connect message and the modem’s
date, rate, and an indication of the modem’s error correction and data compression
operation
Dial Tone Detect
Disabled: The modem dials a call regardless of whether it detects a dial tone. The period of
time the modem waits before dialing is specified in register S6.
Enabled: The modem dials only upon detection of a dial tone, and disconnects the call if
the dial tone is not detected within 10 seconds.
Busy Tone Detect
Disabled: The modem ignores any busy tones it receives.
Enabled: The modem monitors for busy tones.
Yn
Zn
22
Long Space Disconnect. Long space disconnect is always disabled.
0:
Disable long space disconnect (default).
1:
Enable long space disconnect. NOT SUPPORTED
Recall Stored Profile. Zn instructs the modem chip set to go on-hook and restore the profile
saved by the last &W command. Either Z0 or Z1 restores the same single profile.
0:
Recall user profile.
1:
Recall user profile.
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2
AT Commands
Command
&Bn
&Cn
&Dn
&F
Description
V.32 Auto Retrain. This modem always auto retrains.
0:
Disable V.32 auto retrain—NOT SUPPORTED
1:
Enable V.32 auto retrain (default)
Data Carrier Detect (DCD) Control. Data Carrier Detect is a signal from the modem to your
computer indicating that the carrier signal is being received from a remote modem. DCD
normally turns off when the modem no longer detects the carrier sign. This command
controls the modem’s usage of the DCD pin of the DTE interface.
0:
Carrier detect always “ON”
1:
Carrier detect “ON” only when carrier is present (Default).
Data Terminal Ready (DTR) Control. &Dn controls the modem’s usage of the DTR pin of the
DTE interface.
0:
Ignore. The modem ignores the true status of DTR and treats it as always on. This
should only be used if your computer does not provide DTR to the modem.
1:
If the DTR signal is not detected while in on-line data mode, the modem enters
command mode, issues OK result code, and remains connected.
2:
If the DTR signal is not detected while in on-line data mode, the modem disconnects
(default).
3:
Reset on the on-to-off DTR transition.
Load ROM Default Settings. &Fn loads the configuration stored and programmed at the
factory. This operation replaces all of the command options and the S-register settings in
the active configuration with factory values. This command is allowed only in the off-line
command state and will return an ERROR result code if entered while on-line. To load the
factory settings, this command must be issued by itself.
0:
&Gn
0
&Jn
&Kn
&Mn
Restore factory defaults.
V.22bis Guard Tone Control. &Gn determines which guard tone, if any, to transmit while
transmitting in the high band (answer mode). This command is only used in V.22 and
V.22bis mode. This option is not used in North America and is for international use only.
Guard tone disabled (default).
1:
Sets guard tone to 550Hz.
2:
Sets guard tone to 1800Hz
Auxiliary Relay option.
0:
The auxiliary relay is never closed (Default).
1:
NOT SUPPORTED, responds ERROR
Local Flow Control Selection.
0:
Disable flow control. Same as \Q0
1:
Reserved
2:
Reserved
3:
Enables hardware flow control (RTS/CTS). Same as \Q3 (default).
4:
Enable software flow control (XON/XOFF). Same as \Q1.
Asynchronous Communications Mode.
0:
Asynchronous mode (default).
1:
Reserved
2:
Reserved
3:
Reserved
4:
Reserved
Continued
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands, Continued
Command
Description
&P
Pulse Dial Make/Break Ratio Selection. Non-adjustable in some countries. In those
countries the &P command shall be accepted and ignored. This command is effective only
for Japan.
&Qn
&Sn
&Tn
&V
&Wn
&Yn
0:
Make/break ratio 34/66% (default
1:
Make/break ratio 33/66%
Asynchronous Communications Mode. This setting also affects the usage of the DCD, DTR,
CTS, and DSR signals in the DTE interface.
0:
Asynchronous Mode, buffered. Same as \N0 or \N1
1:
Reserved
2:
Reserved
3:
Reserved
4:
Reserved
5:
Enables error control mode, same as \N3. Same as \N3. (Default)
6:
Selects asynchronous mode with Automatic Speed Buffering, ame as \N0.
7:
Reserved
8:
MNP error control mode. If an MNP error control protocol is not established, the
modem will fall back according to the current user setting in S36.
9:
V.42 or MNP error control mode. If neither error control protocol is established, the
modem will fallback according to the current user setting in S36.
Data Set Ready (DSR) Selection. &Sn selects DSR action.
0:
DSR always ON (default).
1:
DSR is OFF when the modem is in the idle state, and when the modem is in a test
mode. DSR circuit is turned ON at the start of the handshaking process. DSR is turned
off when the hangup process is started.
Self-Test Commands. &Tn allows the user to perform diagnostic tests on the modem.
These tests can help to isolate problems when experiencing periodic data loss or random
errors.
0:
Abort. Stops any test in progress.
1:
Local analog loop. This test verifies modem operation as well as the connection
between modem and computer. Any data entered at the local DTE is modulated, then
demodulated and returned to the local DTE. To work properly, the modem must be
off-line.
3:
Begin digital loopback. &T3 is not allowed if an error control connection is in progress.
6:
Remote digital loopback test. This test can verify the intregrity of the local modem, the
communications link, and the remote modem. Any data entered at the local DTE is
sent to and returned from, the remote modem. To work properly, the modems must
be on-line with error control established.
View Active Configuration and Stored Profile. &V is used to display the active profiles.
0:
View active and store profile.
1:
Display active profile and stored profile.
Store Current Configuration. &Wn stores certain command options and S-register values
into the modem’s nonvolatile memory. The ATZ command or a power-up reset of the
modem restores this profile.
0:
Save active profile to user profile.
1:
Not Supported. Will generate an ERROR.
Designate Default User Profile. &Yn selects the user profile to be loaded upon power-up (or
hardware reset). This command does not change the behavior of the modem but is
included for compatibility with applications that issue the &Y0 command.
0:
Select stored profile 0
1:
Selects user profile 1(this generates an ERROR)
Continued
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands, Continued
Command
Description
&Zn=s
Store Telephone Number. &Zn=s stores a 40 character string, retrievable by using the
ATDS=n command. Assumes location 0 if n is omitted. When used, the &Z command must
be the last command on the command line.
\G
\J
\K
\Nn
):
Store s in location 0
1:
Store s in location 1
2:
Store s in location 2
3:
Store s in location 3
Modem Port Flow Control. Applies to normal (ASB) mode only.
0:
Returns and “OK” for compatibility (default).
1:
NOT SUPPORTED responds ERROR
Adjust Bits/s Rate Control. When this feature is enabled, the modem emulates the behavior
of modems that force the DTE interface to the line speed (even for error control
connections). This feature will help (but not guarantee ) to prevent data loss is one or both
DTE interfaces involved do not have flow control.
0:
Turn off feature (default).
1:
Turn on feature.
Set Break Control. /K determines how the modem processes a Break signal received from
the local DTE during a connection (online).
0:
Reserved, returns ERROR.
1:
Reserved, returns ERROR.
2:
Reserved, returns ERROR.
3:
Reserved, returns ERROR.
4:
Reserved, returns ERROR.
5:
Modem sheds the break to the remote modem in sequence with the transmitted data,
non-destructive/non-expedited (default).
Error Control Mode Selection. \Nn determines the type of error control used by the modem
when sending or receiving data.
0:
Selects normal (speed buffering) mode. No error control (same as &Q6).
1:
Selects direct (pass through) mode.
MNP* or disconnect mode. The modem attempts to connect using MNP 2—4 error
control procedures. If this fails, the modem disconnects. This is also known as MNP
reliable mode.
V.42, MNP, or buffer (default). The modem attempts to connect in V.42 error control
mode. If this fails, the modem attempts to connect in MNP mode. If this fails, the
modem connects in buffer mode and continues operation. This is also known as
V.42/MNP auto reliable mode (same as &Q5).
V.42 or disconnect. The modem attempts to connect in V.42 error control mode. If
this fails, the call will be disconnected.
V.42. MNP or buffer (same as \N3).
V.42. MNP or buffer (same as \N3).
2:
3:
4:
5:
7:
\Q
Local Flow Control Selection. Also controllable via &K.
0:
Disable flow control. Same as &K0.
1:
XON/XOFF software flow control. Same as &K4.
2:
CTS-only flow control. This is not supported and the response is ERROR.
3:
Hardware flow control (RTS/CTS) (default). Same as &K3.
Continued
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands, Continued
Command
Description
\Tn
Inactivity Timer. \Tn specifies the length of time (in minutes) that the modem will wait
before disconnecting when no data is sent or received. A setting of zero disables the timer.
Alternatively, this timer may be specified in register S30. Allowable range and default are
country-specific.
0: Inactivity timer disabled (default).
1-255:
Inactivity time in minutes.
*MNP is a registered Trademark of Microcom
\Vn
\Xn
&&C
Protocol Result Code. Controls whether the string /ARQ is appended to the verbose
CONNECT message if a protocol is in use. May also be controlled with bit 1 of S95.
0:
Disable protocol result code appended to DCE speed.
1:
Enable protocol result code appended to DCE speed (default).
XON/XOFF Pass Through. When using XON/XOFF flow control, controls whether the flow
control characters are also sent to the remote modem.
0:
Process flow control characters locally. (default)
1:
Process flow control characters locally, and pass them through to the remote modem
so that they can process the characters. NOT SUPPORTED responds ERROR
Read from /Write to DSP Register.
&&C<loc>,<val>:
Write <val> to the DSP register at <loc>
&&C<loc>
Read from the DSP register at <loc>
&&L
Line to Line Loopback
&&R
Write to/Read from DSP RAM Location.
AT&&R<loc>,<val>:
Writes the value <val> to DSP RAM location <loc>
AT&&R<loc>:
Reads from location <loc>.
+FCLASS
Service Class Selection. This command sets the modem for class n operation.
000: data mode (default)
001: FAX class 1
008: voice mode
Command options:
+FCLASS=0 Select data mode.
+FCLASS=1 Select Facsimile Class 1.
+FCLASS=8 Select voice mode.
+FCLASS?
Causes the modem to display the current setting.
+FCLASS=? Causes the modem to display the classes it supports.
-Cn
%B
Data Calling Tone. Data Calling Tone is a tone of a certain frequency and cadence as
specified in V.25 which allows remote Data/FAX/Voice discrimination. The frequency is
1300 Hz with a cadence of .5 s on and 2 s off.
0:
Disabled (default).
1:
Enabled.
View Numbers in Blacklist. If blacklisting is in effect, this command displays the numbers
for which the last call attempted in the past two hours failed. The ERROR result code
appears in countries that do not require blacklisting.
Continued
26
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands, Continued
Command
Description
%Cn
Data Compression Control. %Cn determines the operation of V.42bis and MNP class 5 data
compression. Online changes do not take effect until a disconnect occurs first.
0: Disables V.42bis/MNP 5 data compression.
1: Enables MNP 5 data compression. (default)
+FCLASS=8
Enter Voice Mode. The command AT+FCLASS=8 puts the modem in voice mode.
Speakerphone and TAD modes are subsumed under the more general heading of voice
mode, and use a particular subset of voice mode commands to implement their respective
features and functions. The modem controller will maintain the overall state of the system
so as to know when voice commands are issued in the context of using the speakerphone
or other voice contexts.
+VIP
Initialize Voice Parameters. The command AT+VIP causes the modem to initialize all the
voice parameters to their default values. The command has no effect on the +FCLASS
setting
+VDR
Distinctive Ringing & Cadence Report. This command will enable the distinctive ringing
feature. This will allow a report of DROF/DRON to follow an exact ring cadence coming over
the phone line.
+VDR=<enable>,<report>
+VDR?: Returns the current values of <enable> and <report>
+VDR=?: Queries the DCE for the range of supported distinctive ring
+VGS
+VGT
configurations
(Same as +VGT)
Speaker Volume Control. This command will enable the speaker volume control.
+VGT=<level>
<level> is 0-255
<level>=128: Nominal volume level for sending to speaker
+VGM
+VGR
+VGT=?
Returns the current microphone gain setting.
+VGT=?
(0-255)
(same as +VGR)
Receive Gain Selection. This command will enable the receive microphone gain control.
<gain> is 0—255: the only useful range is 121—134
<gain>=128:
Nominal level for receive gain from microphone
Speakerphone mode—This command may be used to control the gain to the remote caller.
+VGR? Returns the current receive gain setting.
+VGR=
+VEM
(0-255)
Event Reporting and Masking. The DTE can use this command to disable anevent report
regardless of the DCE state, or of the analog signal source or destination configuration.
Mask is Bits 0—33 (i.e., FFFFFFFFC). See the IS-101 specification for defined bit values.
+VEM=<mask>
+VEM? Returns the current values of the mask
+VEM=? Queries the DCE for the range of supported service level events
+VIT
DTE/DCE Inactivity Timer. This command sets the DCE’s value for the DTE/DCE inactivity
timer. The units are in one seconds.
+VIT?
Returns the current value of the timer
+VIT=? Queries the DCE for the range of supported values.
Continued
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands, Continued
Command
Description
+VNH
Automatic Hang-up Control. This command causes the DCE to enable or disable automatic
hangups in the data and facsimile modes. See the ISO-101 specification for the detailed
description of this command and its interaction with the +FCLASS and ATH commands.
+VNH=0 The DCE retains automatic hangups (which is the way in the other non-voice
modes).
+VNH=2 The DCE disables automatic hangups in the other non-voice modes. The DTE only
performs a logical hangup (returns the “OK” result code).
+VLS
Analog Source/Destination Selection. This is a general purpose analog source/destination
command that attaches various analog devices to the system in voice mode.
+<VLS=<label>
0:
Speakerphone off, detach analog devices, DCE on-hook.
1:
Speakerphone in hold, detach analog devices, DCE off-hook.
2:
DCE off-hook.
3:
DCE off-hook.
5:
Disables/detaches microphone analog source (leaving speaker only) when
speakerphone is in operation (phone mute feature).
7:
Speakerphone on, attach internal speaker and internal microphone, DCE off-hook.
AT+VLS?
Reports the current analog source/destination configuration, along with a listing of all
event codes reported from the modem to the DTE under that configuration. AT+VLS=?
Queries the DCE for the range of supported configurations and the list of unsolicited
event codes that the modem will report to the DTE under each configuration. For
speakerphone, the configurations supported are 0, 5, and 7—as explained above.
28
Addendum 255318-001 to Guide 284820-001
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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-3
FAX Commands
Command
Description
+FCLASS=1
Enter FAX Mode. The command AT+FCLASS=1 puts the modem in FAX mode.
+FTS=<n>
Transmission Silence. This command causes the modem to stop transmitting data and
pause for 10 * n ms. At the end of this period, the modem then responds OK. You can
specify any number from 0 through 255 as the value of n; for example, a value of 5
specifies a period of 50 ms. This is a FAX command only, responds with the ERROR result
code if in data mode.
+FRS=<n>
Receive Silence. This command causes the modem to listen and wait for a 10 * n ms
period of silence on the line. At the end of this period, the modem then responds OK. You
can specify any number from 0 through 255 as the value of n; for example, a value of 5
specifies a period of 50 ms. This is a FAX command only, responds with the ERROR result
code if in data mode.
N=0—255 (10 ms intervals)
+FTM=n
FAX data transmit protocol. This command causes the modem to transmit data at the
modulation specified by <n>. This is a FAX command only, reponds with the ERROR result
code if in data mode. The following table shows the values you can enter for this command
and the meaning of those falues.
Command Option
Modulation
Speed (bits/s)
+FTM=3
V.21 Channel 2
300
+FTM=24
V.27ter
2400
+FTM=48
V.27ter
4800
+FTM=72
V.29
7200
+FTM=96
V.29
9600
+FTM=73
V.17
7200
+FTM=74
V.17(short train) 7200
+FTM=97
V.17
+FTM=98
V.17(short train) 9600
+FTM=121
V.17
+FTM=122
V.17(short train) 12000
+FTM=145
V.17
14400
+FTM=146
V.17(short train)
14400
9600
12000
+FTM=?
Reports range of legal values for the +FTM command. The modem reports”3, 24, 48, 72,
73, 74, 96, 97, 98, 121, 122, 145, 146”
+FRM=n
FAX data receive protocol. This command causes the modem to receive data at the
modulation specified by <n>. This is a FAX command only, responds with the ERROR
result code if in data mode. The following table shows the values you can enter for this
command and the meaning of those values.
Command Option
+FRM=3
+FRM=24
+FRM=48
+FRM=72
+FRM=96
+FRM=73
+FRM=74
+FRM=97
+FRM=98
+FRM=121
+FRM=122
+FRM=145
+FRM=146
Modulation
V.21 Channel 2
V.27ter
V.27ter
V.29
V.29
V.17
V.17(short train)
V.17
V.17(short train)
V.17
V.17(short train)
V.17
V.17(short train)
Speed (bits/s)
300
2400
4800
7200
9600
7200
7200
9600
9600
12000
12000
14400
14400
Continued
Addendum 255318-001 to Guide 284820-001
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-3, FAX Commands, Continued
Command
Description
+FRM=?
Reports range of legal values for the +FRM command. The modem reports”3, 24, 48, 72,
73, 74, 96, 97, 98, 121, 122, 145, 146”
+FTH=n
FAX HDLC Transmit Carrier <n>. This command causes the modem to transmit data
framed in the HDLC protocol at the modulation specified by <n>. This is a FAX command
only, responds with the ERROR result code if in data mode. The following table shows the
values you can enter for this command and the meaning of those values.
Command Option
Speed (bits/s)
V.21 Channel 2
300
+FTH=24
V.27ter
2400
+FTH=48
V.27ter
4800
+FTH=72
V.29
7200
+FTH=96
V.29
9600
+FTH=73
V.17
7200
+FTH=74
V.17(short train) 7200
+FTH=97
V.17
+FTH=98
V.17(short train) 9600
+FTH=121
V.17
+FTH=122
V.17(short train) 12000
+FTH=145
V.17
14400
+FTH=146
V.17(short train)
14400
9600
12000
+FTH=?
Reports range of legal values for the +FTH command. The modem reports”3, 24, 48, 72,
73, 74, 96, 97, 98, 121, 122, 145, 146”
+FRH=n
FAX HDLC Receive Carrier <n>. This command causes the modem to receive data framed
in the HDLC protocol at the modulation specified by <n>. This is a FAX command only,
responds with the ERROR result code if in data mode. The following table shows the values
you can enter for this command an the meaning of those values.
Command Option
+FRH=?
30
Modulation
+FTH=3
Modulation
Speed (bits/s)
+FRH=3
V.21 Channel 2
300
+FRH=24
V.27ter
2400
+FRH=48
V.27ter
4800
+FRH=72
V.29
7200
+FRH=96
V.29
9600
+FRH=73
V.17
7200
+FRH=74
V.17(short train) 7200
+FRH=97
V.17
+FRH=98
V.17(short train) 9600
+FRH=121
V.17
+FRH=122
V.17(short train) 12000
+FRH=145
V.17
14400
+FRH=146
V.17(short train)
14400
9600
12000
Reports range of legal values for the +FRH command. The modem reports”3, 24, 48, 72,
73, 74, 96, 97, 98, 121, 122, 145, 146”
Addendum 255318-001 to Guide 284820-001
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