Paradyne 3810 User Manual
Page 141
AT Command Set and S-Registers
14-7
3810-A2-GB30-20
November 1996
Table 14-1
(5 of 12)
3800 Series AT Commands
AT
Command
Front Panel
Branch
Description
&C
n
LSD Control
&C0
Forced On. LSD on at all times.
&C1 Standard RS232. LSD is on when the remote modem’s carrier signal is
detected. LSD is off when carrier signal is not detected.
&C2
Wink When Disconnect. LSD normally forced ON, turns Off for
approximately one second upon disconnecting.
&C2
Wink When Disconnect. LSD normally forced ON, turns Off for
approximately one second upon disconnecting.
&C3
Follows DTR. State of LSD follows state of DTR.
&C4
Simulated Control Carrier. State of LSD follows state of remote modem’s
RTS.
&C5
=DTR/Disconnect Off. State of LSD follows state of DTR except upon a
disconnect where DTR remains ON and LSD turns Off. DTR must then
toggle Off and ON to turn LSD ON. Use this setting for AT&T DATAKIT
applications. Note that to use this option, the DTR Action configuration
option must be set to Stndrd_RS232 (&D1 or &D2).
&C6
Bridge Retrain. LSD behaves as if it were set for Stndrd_RS232, except
that it is turned off when a retrain condition lasts longer than 10 seconds,
and turned on again when no retrain condition is detected for a period of
10 seconds.
Configure\Edit\DTE
Interface
&D
n
DTR Action
&D0
Ignore. Modem ignores the true status of DTR and treats it as always
ON.
&D1
Off=Command Mode. Modem enters online Command Mode if
connected when DTR switches Off.
&D2
Standard RS232. DTR Signal is controlled by the DTE.
&D3
Off=Reload Strap. Follows Standard RS232 operation, except that when
DTR switches Off, the modem loads the Active (Saved) area into the
Active (Operating) area.
&D4
Controls On-Hook. Follows Standard RS232 operation, except that
modem does not disconnect until DTR is lowered by the DTE.
&D5
Controls TX Mute. Follows Standard RS232 operation, except that when
DTR is lowered at the answering modem, the modem mutes transmitter
output.
Configure\Edit\DTE
Interface
&F
n
Select Factory Default Configuration Options
Loads factory configuration options into Active (Operating) area.
&F0 Async
Dial
&F1 Sync
Dial
&F2 Sync Leased: Answer
&F3 UNIX
Dial
&F4
Sync Leased: Originate
&F5
Cellular (Mobile)
&F6
Cellular (PSTN)
Configure\Factory