Modem Emulation At Command Set - Digi TS W User Manual

Modem Emulation AT Command Set

AT
Command
Answer command: The Digi Device Server will go off hook and answer a
ATA
TCP connection request.
This command directs the Digi Device Server to go on-line, dial according to
the IP address entered as follow 191.1.2.3:12 and attempt to establish a
TCP connection. If no dial string is supplied, the Digi Device Server will
respond no dial tone.
Note: If the ATD command is issued before the S1 register has cleared, the
modem will respond with the NO CARRIER result code.
Dial Modifiers. The valid dial string parameters are described below. Punc-
tuation characters may be used for clarity with parentheses, hyphen, and
spaces being ignored.
ATD<IP>:
<TCP
PORT>
Command echo. The Digi Device Server enables or disables the echo of
characters to the DTE according to the parameter supplied. The parameter
value, if valid, is written to S14 bit 1.
ATEn
E0 : Disables command echo
E1 : Enables command echo
Disconnect (Hang up) command
This command initiates a hang up sequence.
ATH
H0 : Disconnect the TCP session if the modem is currently on line.
H1 : If on-hook, the Digi Device Server will go off-hook and enter command
mode.
Chapter 9 Modem Emulation
Function
Result
Code
OK n=0 or 1
ERROR
Otherwise
OK n=0 or 1
ERROR
Otherwise
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