Hayes Microcomputer Products PC Card - Manual (Page 34)

DIVA T/A PC Card Reference Guide 34
COM Port Configuration
Commands
This section describes the COM Port Configuration commands.
Command Description
AT&Cn Data Carrier Detect: This command controls
the Data Carrier Detect (DCD) output.
n=0
DCD always enabled.
n=1
DCD tracks connection (default).
AT&Dn Data Terminal Ready: This command
controls interpretation of the Data Terminal
Ready (DTR) input.
n=0
Ignores status of DTR signal.
n=1
Monitors DTR signal: when an on-to-off
transition of DTR signal occurs, enter the
command state. Return to the online state when
the ATO command is issued.
n=2
Monitors DTR signal: when an on-to-off
transition of DTR signal occurs, hang up and
enters the command state (default).
n=3
Monitors DTR signal: when an on-to-off
transition of DTR signal occurs, hang up and
reset.
n=9
Monitors DTR signal: when an off-to-on
transition of DTR signal occurs, automatically
dial the stored telephone number 0