Multi-Tech Systems ISIHP-4U, ISIHP-4S manual S10 DCD Drop Time Unit 50 ms Range 0-254, 255 Default

Terminal Adapter AT Commands & S-Registers

S10 DCD Drop Time Unit: 50 ms Range: 0–254, 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, 1–255 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=1–255

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: 0–255

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.

MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD 129