MT5656ZDX Multi-Tech Systems, MT5656ZDX Datasheet - Page 12

MODEM V.92 DATA/FAX

MT5656ZDX

Manufacturer Part Number
MT5656ZDX
Description
MODEM V.92 DATA/FAX
Manufacturer
Multi-Tech Systems
Series
MultiModem® ZDXr
Datasheets

Specifications of MT5656ZDX

Data Format
V.92
Interface
RS-232
Voltage - Supply
9V
Mounting Type
Desktop
Package / Case
5.7" L x 4.3" W x 1.0" H (145mm x 109mm x 25mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
881-1020
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F)
%En
%L
%Q Line Signal Quality
%U PCM Code Selection
\An Maximum MNP Block Size
\Bn Transmit Break
Line Quality Monitor
n = 0, 1, or 2
2
Controls whether or not the modem will automatically monitor the line quality and request
a retrain (%E1) or fall back to a lower speed when line quality is insufficient and fall
forward to a faster speed when line quality is sufficient (%E2).
%E0
%E1
%E2
Line Signal Level
None
None
% L Returns a value that indicates the received signal level in dBm. This value is a direct
indication (DAA-dependent) of the receive level at the MDP, not at the telephone line
connector. Examples: 009 = -9 dBm, 043 = -43 dBm, and so on.
None
None
% Q reports line signal quality (DAA-dependent) as a three-digit number. Returns the
higher order byte of the EQM value. Based on the EQM value, retrain or fallback/fall
forward may be initiated if enabled by %E1 or %E2.
n = 0 or 1
0
Specifies the PCM code type for 56K modulation. Note, however, that the modem
automatically selects the code type if the server sends the proper ID.
%U0
%U1
Note:
Note:
n= 0, 1, 2, or 3
1
\A0
\A1
\A2
\A3
n = 0–9 in 100 ms units
3
In non-error-correction mode only, sends a break signal of the specified length to a remote
modem. Works in conjunction with the \K command.
See also the +MS= command.
For use with MT5600BA and MT5600BR only.
Disables line quality monitor and auto-retrain.
Enables line quality monitor and auto-retrain.
Enables line quality monitor and fallback/fall forward.
Selects µ-Law coding—used in North America and Japan.
Selects A-Law coding—used outside North America and Japan.
64-character maximum block size.
128-character maximum block size.
192-character maximum block size.
256-character maximum block size.
Chapter 2 – AT Commands
12

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