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MT2834MR6
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Chapter 7 - Warranty & Service
Contents
Main
Revision Date Description
Contents
Page
Page
Page
Page
1.1 Introduction
1.2 Manual Organization
1.3 Description
Owners Manual
1.4 FCC Regulations for Telephone Line Interconnection
1.4.1 FCC Fax Update
1.5 Canadian Limitations Notice
1.6 Technical Specifications
Page
1.7 Power Supply
1.8 Modem LED Indicators
Note: The MultiModemManager can perform the same function using software.
1.9 Busy Switch
1.10 MT2834MR6 Installation Notes
Owners Manual
Note: Such apparatus may have been approved subject to limitations in its use.
1.11 Safety Warnings
Page
Chapter 2 - Dialing and Answering
2.1 Introduction
2.2 Dial-Up Automatic Answering
2.3 Dial-Up Handshaking Details
Chapter 2 - Dialing and Answering
2.4 Call Termination
Page
3.1 Working with AT Commands
3.1.1 Modes of Operation
3.2.2 Command Structure
3.3.3 Command Editing
Page
Page
Page
3.2 Dialing Commands
3.3 Dial Modifier Commands
Page
Page
3.4 Phone Number Memory Commands
Page
3.5 Configuration Storage and Recall Commands
Page
3.6 Modem Response (Result Code) Commands
Page
3.7 Online Connection Commands
Page
Page
Page
3.8 V.34 Commands
3.9 RS-232 Interface Commands
Page
3.10 Error Correction and Data Compression Commands
Page
3.11 Speed Conversion Commands
Page
3.12 Immediate Action Commands
Page
3.12 Flow Control Commands
Page
Page
3.13 Escape Sequences
ATA
S7
A
3.14 Remote Configuration Commands
3.15 Line Probe Commands
3.16 Diagnostic Commands
Page
4.1 Introduction
4.2 S-Registers
Page
S7
S8
S10
S9
S9
S11
S11
S25
S24
&C
Page
Page
4.3 Reading and Assigning S-Register Values
4.3.1 Examples of Assigning Values
4.3.2 Examples of Reading Values
4.4 AT Commands Affecting S-Registers
Page
5.1 Introduction
5.2 How V.42 Detects and Corrects Errors
detected
correction
5.3 Data Compression
$BA0
&E5
&E4
$SB115200
#L
5.5 V.42 Mode Select Command (
#Ln
#L0
#L
5.6 Modes of Operation
&E0
&E1
5.6.3 Autoreliable Mode (
&E2
5.7 Flow Control
5.8 Modem-Initiated Flow Control
&E5
&E4
5.8.2 Hardware Flow Control (
5.8.1 XON/XOFF Flow Control (
&E13
5.9 Pacing (
&E9
5.9.3 Hewlett Packard ENQ/ACK Pacing (
&E11
5.10 Compression, Error Correction, Flow Control, and Pacing Commands
5.11 Result Codes
5.11.1 MNP Error Correction
5.11.2 LAP-M Error Correction
5.11.3 Data Compression
5.12 Speed Conversion
$BA
5.12.1 Baud Adjust (
5.12.2 Modem Baud Rate ($MB)
5.12.3 Serial Port Baud Rate ($SB)
5.13 Related Commands
5.13.1 Autoreliable Buffering ($A)
5.13.2 Maximum Block Size (&BS)
5.13.3 Autoreliable Fallback Character ($F)
5.13.4 Retransmit Count ($R)
5.14 Summary
Page
6.1 Introduction
Note: Loopback tests operate at all speeds except 300 bps.
6.2 Local Analog Loopback Test (V.54 Loop 3)
6.2.1 Test Procedure
CONNECT
6.3 Remote Digital Loopback Test (V.54 Loop 2)
6.3.1 Test Procedure
6.4 Local Digital Loopback Test (V.54 Loop 2)
6.4.1 Test Procedure
Page
7.1 Multi-Tech Systems, Inc. Warranty & Repairs Policies
7.1.1 Warranty
mtsrepair@multitech.com
www.multitech.com
www.multitech.com.
7.1.3 International Customers (outside U.S.A. and Canada)
7.1.4 International Distributors
7.2 Repairs
7.2.1 Repair Procedures for U.S. and Canadian Customers
7.2.2 Repair Procedures for International Customers
7.2.3 Repair Procedures for International Distributors
7.2.4 Replacement Parts
7.3 Technical Support
7.4 Internet Site
Page
Appendix A
ASCII Conversion Chart
CTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC
Appendix B
Dial Pulses
Tone Dial Frequencies
Appendix C
Result Code Summary
CONNECT
R
or the letter
&Q1
&Q
Standard AT Result Codes (
L
CONNECT
Appendix D
S-Register Summary
Page
Appendix E
AT Command Summary
Command Values Description
Page
&En n
&E5
%Fn n
$Fn n
&F
Page
Page
Page
Page
Page
Appendix F
RS-232C Interface Specifications
Page
Test Voltage (+V) Pin 9 (From modem)
High Speed (HS) Pin 12 (From modem)
Transmit Clock (TC) Pin 15 (From modem)
Receive Clock (RC) Pin 17 (From modem)
Data Terminal Ready (DTR) Pin 20 (To modem)
Page
Appendix G
Cable and Connector Diagrams
APPENDIX H
Introduction to MultiTech Escape Methods
How to Select an Escape Method
Escape Method 1: +++AT<CR>
Escape Method 2: <BREAK>AT<CR>
S-Registers and Escape Sequence
A
S34
Aborting an Escape Sequence
APPENDIX I
Introduction to Remote Configuration
Basic Procedure
Setup
Changing the Passwords
Changing the Remote Escape Character
Page
Index
A
B
C
D
E
F
G
H
I
K
L
P
Q
R
S
T
V
W
X