User`s guide

.
&D2 is the AT command to enable the Data Terminal Ready (DTR) input of the
modem. The modem will hang-up, enter command state, and disable auto-
answer when it detects an on-to-off transition of the DTR input.
.
SO=1 is the AT command to set register SO to 1, meaning that the modem
should auto-answer incoming calls on the first ring. This option should be used
if remote hosts will be dialing in to the SLTA-10 Adapter. Use "S 0 = 0" if the
SLTA-10 Adapter will only be used for dialing out to remote hosts.
See Modem Compatibility later in this chapter for additional sample modem
configuration strings.
typedef struct I
byte sub-code;
// always #I
byte app-command; // value = 10
byte total-size; // of the data string
byte offset;
// for incremental writes
char cfg-string[];
] ANM-install-cfgs-request;
This message uses the EEPROM pool to store the modem configuration string. See
the section on EEPROM String Pool Management above for details.
Install Hangup String (MIP mode only)
This message installs a hang-up string, which is used to terminate a connection if the
DTR control fails to do so. The default setting for this string is I'---+++---ATHO ! 'I.
This particular sequence is useful for Hayes modems, or other modems that have
licensed the use of the Guard Time feature from Hayes Corporation. Some so-called
Hayes-compatible modems use other sequences. A 1.5 second pause, followed by the
string ‘+++I, followed by another 1.5 second pause will cause a Hayes-compatible
modem to enter its command state if it is in the connected state. The command ATHO
causes the modem to hang-up.
typedef struct {
byte sub-code;
// always #I
byte app-command;
// value = 11
byte total-size;
// of the data string
byte offset;
// for incremental writes
char hups-string[];
] ANM-install-hups-request;
This message uses the EEPROM pool to store the hang-up string. See the section on
EEPROM String Pool Management above for details.
SLTA-10 Adapter User’s Guide
11-15