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MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD 129
Terminal Adapter AT Commands & S-Registers
S10 DCD Drop Time
Unit: 50 ms
Range: 0254, 255
Default: 20
Sets the amount of time the DCD signal will be dropped when a call is
disconnected if the DCD signal is configured for a momentary drop on
disconnect (&C2)
S25 DTR Drop Time
Unit: 100 ms
Range: 0, 1255
Default: 5
Sets the time that DTR must remain low before the TA disconnects. The
S25 unit value for 0 is 40 ms. For values from 1 through 255, the unit value
is 100 ms.
S30 On-line Inactivity Timer
Unit: 1 minute
Range: n=0 Does not disconnect
n=1255
Default: 0 (does not disconnect)
Makes the TA disconnect a data connection if no data is transmitted or
received for the specified time. It will NOT cause a POTS call (voice/
modem/fax) to disconnect. The timer restarts any time a data character
passes through the serial port (either sent or received). Disable the
inactivity timer by setting S30=0, which is the factory default setting. S30
currently works for + all protocols EXCEPT V.110.
S32 Escape Sequence Timeout
Unit: 100 ms
Range: 0255
Default: 20
Sets the time allowed in an escape sequence from the receipt of the A in AT
to the receipt of the carriage return. If the S32 time interval expires before
you press ENTER, the escape sequence ends. The default time is 2 seconds.