User`s guide

5: BSC 2780/3780 DLI Functions
DC 900-1340I 135
SADL Modem Configuration
If the modem type option is set to SADL, the BSC 2780/3780 software sends the config-
uration string pointed to by the
dlWrite pBuf parameter to the SADL modem. For exam-
ple, the configuration string might be ‘01111,’ with the
iBufLen parameter set to 5. To
busy-out a SADL modem, you must send a configuration string that enables the busy-
out option (refer to your particular SADL modem user’s guide for the specific busy-out
string). The busy-out command results in the link remaining disabled with DTR low.
The “BUSY” string is not a valid configuration string for a SADL modem; if this string
is sent, the BSC 2780/3780 software returns a modem configuration confirmation with
the
dlRead pOptArgs.iICPStatus field set to DLI_ICP_ERR_BUSY_OUT, busy-out not sup-
ported.
V.25bis Modem Configuration
If the modem type option is set to V.25bis, the BSC 2780/3780 software inserts the
proper control characters before and after the configuration string pointed to by the
dlWrite pBuf parameter, sends the string to the V.25bis modem, and waits up to 20 sec-
onds for a response. The BSC 2780/3780 software recognizes the error strings “INV”
and “INC” from the V.25bis modem. The “BUSY” string is not a valid configuration
string for a V.25bis modem; if this string is sent, the BSC 2780/3780 software returns a
modem configuration confirmation with the
dlRead pOptArgs.iICPStatus field set to
DLI_ICP_ERR_BUSY_OUT, busy-out not supported.
AT Modem Configuration
If the modem type option is set to AT, the BSC 2780/3780 software inserts the string
“ATE1V” before the configuration string pointed to by the
dlWrite pBuf parameter,
sends the string to the AT modem, and waits up to five seconds for a response. To busy-
out an AT modem, the configuration string “BUSY”, with the
iBufLen parameter set to
4, causes the BSC 2780/3780 software to send “ATE1V*B1” to the modem. The busy-
out command results in the link remaining disabled with DTR low.