Westermo TDW-33 User Manual
Page 8
6618-3202
8
%Cn – Select data compression
Supported by:
TDW-33
TD-36
TD-36 485
TR-36
TR-36B
Description:
This command enables or disables data compression. The modem can only perform data
compression on an error corrected link. The parameter value, if valid, is written to S41
bit 0 and 1.
Syntax:
AT%C
Parameters:
0: No compression. Resets S46 bit 1.
1:
Enables MNP 5 data compression. Resets S46 bit 1.
2:
Enables V42bis data compression. Sets S46 bit 1
3:
Enables both V.42bis and MNP5 data compression. Sets S46 bit 1. (Default)
Command example
Possible responses
Note
AT%C
The command is valid
and accepted
ERROR
Otherwise
S register: The value is written to S41 bits 0 and 1 and S46 bit 1
&Cn – DCD Option
Supported by:
TDW-33
TD-36
TD-36 485
TR-36
TR-36B
Description:
This command controls the DCD output in accordance with the parameter supplied
Syntax:
&C
Parameters:
0: DCD remains ON at all times
1:
DCD follows the state of a carrier (Default)
Command example
Possible responses
Note
AT&C
The command is valid
and accepted
ERROR
Otherwise
S register: The value is written to S21 bit 5