RadiSys EXM-31 Hardware Reference Manual
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EXM-31 Hardware ReferencePage 424 4S9 Carrier Recovery TimeSets the time, in tenths of a second, that the carrier must be present before the modemconsiders it valid and turns on RLSD. As this time is increased, there is less chance todetect a false carrier due to noise from the telephone line.Range: 1 - 255Default: 006 (0.6 seconds)Units: 0.1 secondsS10 Lost Carrier Hang Up DelaySets the length of time, in tenths of a second, that the modem waits before hanging upafter a loss of carrier. This allows for a temporary carrier loss without causing thelocal modem to disconnect. When register S10 is set to 255, the modem functions asif a carrier is always present.The actual interval the modem waits before disconnecting is the value in register S10minus the value in register S9. Therefore, the S10 value must be greater than the S9value or else the modem disconnects before it recognizes the carrier.Range: 1 - 255Default: 014 (14 seconds)Units: 0.1 secondsS11 DTMF Dialing SpeedRange: 50 - 255Default: 095Units: 0.001 secondsS12 Guard TimeDefines the maximum period, in 2-hundredths of a second, allowed betweenconsecutive asynchronous escape characters (+) for the escape sequence to beconsidered valid.Range: 0 - 255Default: 050 (1 second)Units: 0.02 seconds |
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