Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 152)

Serial Port Commands
Set DCD Signal &C
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WM_DEV_OAT_UGD_049 - 001 VOLUME 1 August 23, 2007
8.7 Set DCD Signal &C
8.7.1 Description
This command controls the Data Carrier Detect (DCD) signal.
8.7.2 Syntax
Action command
AT & C[<n>]
OK
Read command
None
Test command
None
8.7.3 Parameters and Defined Values
<n>: DCD signal control parameter
0 DCD always on
1 DCD matches the state of the remote Wireless CPU ® ’s data
carrier (default value).
8.7.4 Parameter Storage
The <n> parameter is stored in EEPROM using AT&W command. The default value
can be restored using AT&F.