User manual

S-REGISTERS 5-9

2 Impulse loop (&X2)

Bit 6 CCITT/Bell Mode (B) (only at 300 and 1200 bps)

0 CCITT (B0) (factory setting)

1 Bell (B1)

Bit 7 Reserved

S28 – General Options

Factory setting : 0

Bit 0 V.23 Split Speed

0 Not authorised (\W0) (factory setting)

1 Authorised (\W1)

Bit 1 V.23 Split Speed Direction

0 75 Tx (%F0) (factory setting)

1 1200 Tx (%F1)

Bit 2 V.23 Semi-Duplex

0 Not authorised (factory setting)

1 Authorised (%F3)

Bit 3-7 Reserved.

S29 – Flash Dial Modiﬁer Time

Sets the length of time, in units of 10 milli seconds, that the modem will go on

hook when it encounters the ﬂash (!) dial modiﬁer in the dial string.

Fixed Range: 2 (20 ms)

S30 – Inactivity Timer

This determines when the modem goes off-line, when no data are being sent or re-

ceived. If no Error Correction procedure is active, this Register is reset only by

transmitted data. With other procedures, the Register is reset by any data which are

recognized. The timer works only in asynchronous mode.

Range: 0-255 sec (1/10 sec); factory setting: 0