User`s guide

Chapter 8 Special Features: Modem Emulation 71
ATD<IP>
:
<TCP
PORT>
This command directs the Digi device 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 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.
Punctuation characters may be used for clarity with parentheses, hyphen,
and spaces being ignored.
ATEn
Command echo. The Digi device 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.
E0 : Disables command echo
E1 : Enables command echo
OK n=0 or 1
ERROR
Otherwise
ATH
Disconnect (Hang up) command
This command initiates a hang up sequence.
H0 : Disconnect the TCP session if the modem is currently on line.
H1 : If on-hook, the Digi device will go off-hook and enter command mode.
OK n=0 or 1
ERROR
Otherwise
ATIn
Identification command
I0 reports product code. Example: Digi device
I1 reports 255
I2 reports “OK”
I3 reports “OK”
I4 reports DIGI DS_TS
I5 reports “OK”
I6 reports “OK”
I7 reports “OK”
I8 reports “ERROR”
I9 reports “ERROR”
OK n=0 or 9
ERROR
Otherwise
AT
Command
Function
Result
Code