AT | Function | Result | |
Command | Code | ||
| |||
|
|
| |
| This command directs the Digi Device Server to go |
| |
| 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 | OK n=0 or 1 | |
ATEn | value, if valid, is written to S14 bit 1. | ||
ERROR | |||
E0 : Disables command echo | |||
| Otherwise | ||
| E1 : Enables command echo |
| |
| Disconnect (Hang up) command |
| |
ATH | This command initiates a hang up sequence. | OK n=0 or 1 | |
H0 : Disconnect the TCP session if the modem is currently on line. | ERROR | ||
| H1 : If | Otherwise | |
|
| ||
| mode. |
| |
| Identification command |
| |
| I0 reports product code. Example: Digi Device server |
| |
| I1 reports 255 |
| |
| I2 reports “OK” |
| |
| I3 reports “OK” | OK n=0 or 9 | |
ATIn | I4 reports DIGI DS_TS | ERROR | |
Otherwise | |||
| I5 reports “OK” | ||
|
| ||
| I6 reports “OK” |
| |
| I7 reports “OK” |
| |
| I8 reports “ERROR” |
| |
| I9 reports “ERROR” |
|
Chapter 7 Special Features: Modem Emulation | 47 |