Perle 833IS, User Manual

Page: 275 / 340

Appendix 2: AT Command Set
Perle 833IS User Guide 259
<max_rate> is an optional number which specifies the highest rate at which the
modem may establish a connection. The value is decimal coded, in units of bps,
e.g., 14400 specifies the highest rate to be 14400 bps. The default is 28800 for
28800 bps.
Error Detection and Data Compression Commands
AT% Commands
%C - Enable/
Disable Data
Compression
Enables or disables data compression negotiation. The modem can only perform
data compression on an error corrected link.
%C0 Disables data compression.
%C1 Enables MNP 5 data compression negotiation.
%C2 Enables V.42 bis data compression.
%C3 Enables both V.42 bis and MNP 5 data compression. (Default.)
Result Codes:
OK
n = 0, 1, 2, or 3.
ERROR Otherwise.
AT\ Commands
\An - Select
Maximum MNP
Block Size
The modem will operate an MNP error corrected link using a maximum block size
controlled by the parameter supplied.
\A0 64 characters.
\A1 128 characters. (Default.)
\A2 192 characters.
\A3 256 characters.
Result Codes:
OK
n = 0 to 3.
ERROR Otherwise.
\Bn - Transmit
Break to Remote
In non-error correction mode, the modem will transmit a break signal to the remote
modem with a length in multiples of 100 ms according to parameter specified. If a
number in excess of 9 is entered, 9 is used. The command works in conjunction with
the \K command.