VEGA Phoenix PSI Data Fax Modem - Manual (Page 112)

PSI-DATA/FAX-MODEM/RS232
6-24 692302
S9 Waiting Time for Detecting the Carrier Detect Signal
Register S9 specifies how long the carrier detect signal for the selected modem
must be present so that your modem can detect it. This function ensures that your
modem does not incorrectly interpret other signals such as the engaged tone,
telephone ringing or voice paging as a carrier detect signal.
This register value is specified in units of one tenth of a second.
Default: 600 milliseconds
(Any value between 1 and 255 can be used. If, for example, you specify the
value 13, your modem must receive the carrier detect signal for the selected
modem for 1.3 seconds before responding.)
The higher the value, the less likely the modem is to incorrectly identify carrier
detect signals.
S10 Waiting Time for Losing the Carrier Detect Signal
Register S10 specifies how long your modem should wait after losing the carrier
detect signal for the selected modem before it aborts the connection. This function
can be used to prevent your modem from aborting the connection if the selected
carrier detect signal only briefly disappears from the line.
This register is set in units of one tenth of a second.
Default: 1400 milliseconds
(The entire valid range is between 1 and 200.)
Select a higher value if the connection is poor and the selected carrier detect signal
is disturbed by other noises.
Set the value to 255 if your modem should ignore the carrier detect status and
establish that the carrier detect signal for the selected modem is continuously
present (not possible in certain countries).
S11 Dialing Speed (Dial Tone Duration) For Tone Dialing
Register S11 controls the speed of tone frequency dialing (DTMF).
Default: 85 milliseconds
(This value cannot be modified.)
If the value of this register is less than the value of register S9, your modem
interrupts the connection as soon as the carrier detect signal briefly disappears.
In this case register S10 elapses before the waiting time allocated for detecting
the carrier detect signal elapses.
Register S11 has no effect on pulse dialing.