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Appendix 2: AT Command Set
Perle 833IS User Guide 251
AT& Commands
&Cn - RLSD (DCD)
Option
The modem controls the RLSD output in accordance with the parameter supplied.
&C0 RLSD remains ON at all times.
&C1 RLSD follows the state of the carrier. (Default.)
Result Codes:
OK n = 0 or 1.
ERROR Otherwise.
&F - Restore
Factory
Configuration
(Profile)
The modem loads the factory default configuration (profile). The factory defaults
are identified for each command and in the S-Register descriptions. A configuration
(profile) consists of a subset of S-Registers.
&FRestore Factory
Configuration
Result Codes:
OK
ERRORIf the modem is connected.
Short Form Long Form n Value in ATXn Command
170 CONNECT 42000 x x x x x
171 CONNECT 44000 x x x x x
172 CONNECT 46000 x x x x x
173 CONNECT 48000 x x x x x
174 CONNECT 50000 x x x x x
175 CONNECT 52000 x x x x x
176 CONNECT 54000 x x x x x
177 CONNECT 56000 x x x x x
+F4 +FCERROR xxx xx
Notes:
An 'x' in a column indicates that the message (either the long form if verbose, or the value only for short
form) will be generated when that particular value of 'n' (shown at the top of the column) has been
selected by the use of ATXn. If the column is blank, then no message will be generated for that x option.
A numeral indicates which less explicit message (verbose or short form) will be output for that X
option.
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