User manual

Chapter 9 Modem Emulation 39
ATXn Accepted but ignored.
OK n=0 to 3
ERROR
Otherwise
ATYn Accepted but ignored.
OK n=0 or 1
ERROR
Otherwise
ATZn Accepted but ignored. (Soft Reset and restore Profile).
OK n=0 or 1
ERROR
Otherwise
AT&Cn
DCD Option. The Digi Device Server controls the DCD output in accor-
dance with the parameter supplied. The parameter value, if valid is written
to S21 bit 5.
&C0 DCD remains ON at all times.
&C1 DCD follows the state of the connection
OK n=0 or 1
ERROR
Otherwise
AT&Dn
DTR Option. This command interprets the ON to OFF transition of the DTR
signal from the DTE in accordance with the parameter supplied. The param-
eter value, if valid, is written to S21 bits 3 and 4. Also see S25.
&D0 -DTR is ignored (assumed ON). Allows operation with DTEs which
do not provide DSR.
&D1DTR drop is interpreted by the modem as if the asynchronous escape
sequence had been entered. The modem returns to asynchronous com-
mand state without disconnecting.
&D2DTR drop causes the modem to hang up. Auto-answer is inhibited.
(Default.)
&D3DTR drop causes the modem to perform a soft reset as if the Z com-
mand were received. The &Y setting determines which profile is loaded.
OK n=0 to 3
ERROR
Otherwise
AT&Fn
Restore Factory Configuration (Profile)
The Device Server loads the factory default configuration (profile). The fac-
tory defaults are identified for each command and in the S-Register descrip-
tions. A configuration (profile) consists of a subset of S-Registers.
&F0Restore factory configuration 0.
&F1Restore factory configuration 1.
OK n=0 or 1
ERROR
Otherwise
AT&Jn Accepted but ignored.
OK n=0 or 1
ERROR
Otherwise
AT&Gn Accepted but ignored.
OK n=0 or 1
ERROR
Otherwise
AT&Jn Accepted but ignored.
OK n=0 or 1
ERROR Other-
wise
AT&Kn
Flow control. This command defines the DTE/DCE flow control mechanism.
The parameter value, if valid, is written to S39 bits 0, 1, and 2.
&K0 Disables flow control
&K3 Enables RTS/CTS flow control (Default)
&K4 Enables XON/XOFF flow control
&K5 Enables transparent XON/XOFF flow control
&K6 Enables both RTS/CTS and XON/XOFF flow control.
OK n=0,3,4,5,or 6
ERROR
Otherwise
AT&Ln Accepted but ignored.
OK n=0, 1, 2
ERROR
Otherwise
AT
Command
Function
Result
Code