0049-1800-xxx 326X V.34, V.34-SDC and V.32bis Series Modem – USER’S GUIDE 02/23/2010
Rev. A
Page 84
of
205
S-Register 25 – Delay Before Looking for DTR
When
DTR Delay
=S25 (AT*DT), and
AT Form
=Sync Data (AT&M) or
V25 Form
=AsynSync, the
modem goes into synchronous data mode after the modem dials synchronously. S-Register 25 lets you
switch from an asynchronous DTE to a synchronous DTE without hanging up. S-Register 25 allows
this switch by specifying how many seconds the modem waits after connecting before looking for
DTR.
S-Register 26 – RTS/CTS Delay
This S-Register selects the delay between CTS and RTS while the modem is online. It operates in
modes specified by the RTS (AT
*
RS) and CTS (AT
*
CT) commands.
The time is selectable in 1/100 second intervals, from 0 to 2.55 seconds.
S-Register 30 – DTE Inactivity Disconnect
If DTE Inactivity=S30 (AT*SI), the modem disconnects when data is not sent or received for an
amount of time greater than the value stored in S-Register 30, multiplied by 10 seconds. Time-outs
range from 10 to 2550 seconds (42.5 minutes). A value of 0 stored in S-Register 30 disables the DTE
inactivity option.
