AT Commands

Command:

&Ln

Leased Line Operation

Values:

 

n = 0, 1, or 2

Defaults:

 

0

 

Description:

 

&L0

The modem is set for standard dial-up operation.

 

 

&L1

The modem is set for leased line operation in

 

 

 

originate mode.

 

 

&L2

The modem is set for leased line operation in

 

 

 

answer mode.

 

 

Note: For &L1 and &L2, there is a 30-second window between

 

 

power up and the starting of the leased line handshake. During

 

 

this time, you can turn off the command, if desired.

Command:

&Pn

Pulse Dial Make-to-Break Ratio Selection

Values:

 

n = 0, 1, or 2

Default:

 

0

 

Description:

 

&P0

60/40 make-to-break ratio

 

 

&P1

67/33 make-to-break ratio

 

 

&P2

20 pulses per second

 

 

Note: The &P2 command is available only if the country code is

 

 

set to Japan.

Command: &Qn Asynchronous Communications Mode

Values:

 

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

Default:

 

5

Asynchronous with data buffering. Same as \N0.

Description:

 

&Q0

 

 

&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 according to the

 

 

 

setting in S36.

Command:

&Sn

Data Set Ready (DSR) Control

Values:

 

n = 0 or 1

Default:

 

0

 

Description:

 

&S0

DSR is always ON.

 

 

&S1

DSR goes ON only during a connection.

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Western Telematic MT5634 manual Command Leased Line Operation, Command Pulse Dial Make-to-Break Ratio Selection