Multitech MT2834ZDX - Command Group: Baud Adjust and Carrier Detect; Baud Adjust and Cleardown Commands; Carrier Detect Control

4 AT Commands, S-Registers, and Result Codes
37
Command: &BS n Maximum Reliable Block Size
Values: n = 0 or 1
Default: 1
Description: &BS0 Maximum transmit block size of 64 characters.
&BS1 Maximum transmit block size of 256 characters.
Command: $BA n Baud Adjust
Values: n = 0 or 1
Default: 0
Description: $BA0 Set baud adjust off, speed conversion on. (Serial
port speed is independent of modem data rate.)
$BA1 Set baud adjust on, speed conversion off. (Serial
port speed is same as modem data rate.)
Command: &C n Carrier Detect Control
Values: n = 0, 1, 2, or 4
Default: 1
Description: &C0 Force Carrier Detect high.
&C1 Let Carrier Detect follow carrier signal.
&C2 Let Carrier Detect drop on disconnect, then go
high again (for some CBX phone systems).
&C4 Reset modem when Carrier Detect drops.
Command: &CD n Cleardown at Disconnect
Values: n = 0, 1
Default: 0
Description: &CD0 Execute a cleardown at disconnect.
&CD1 Do not execute a cleardown at disconnect.