User Guide

Command:

&Qn

Asynchronous Communications Mode

Values:

 

n = 0, 5, 6, 8, or 9

Default:

 

5

Description:

&Q0

Asynchronous with data buffering. Same as \N0.

 

&Q5

Error control with data buffering. Same as \N3.

 

&Q6

Asynchronous with data buffering. Same as \N0.

 

&Q8

MNP error control mode. If MNP error control is

 

 

not established, the modem falls back according

 

 

to the setting in S36.

 

&Q9

V.42 or MNP error control mode. If neither error

 

 

control is established, the modem falls back ac-

 

 

cording to the setting in S36.

Command:

&Sn

Data Set Ready (DSR) Control

Values:

 

n = 0 or 1

Default:

 

0

Description:

&S0

Force DSR always high (on).

 

&S1

Let DSR go high only during a connection.

Command:

&Tn

V.54 Test Commands

Values:

 

n = 0, 1, 3 or 6

Default:

 

None

Description:

&T0

Abort. Stop any test in progress.

 

&T1

Local analog loopback test.

 

&T3

Local digital loopback test.

 

&T6

Remote digital loopback test.

Note: To stop a test, you must use the escape sequence (+++AT) before typing AT&T0.

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Multi-Tech Systems MT5634ZBAV manual Asynchronous Communications Mode, Data Set Ready DSR Control, Test Commands