IBM PRO/100 SP manual S24 Timer to Control Sleep Mode, S28 V.34 Modulation Enable/Disable

5 = X2 selected

6 = X3 selected

7 = X4 selected (Default)

Bit 7 Pulse dial make/break ratio (&Pn)

0 = 33/67 make/break ratio (&P1, &P2) (Default)

1 = 39/61 make/break ratio (&P0)

Default: 112 (01110000b)

S24 Timer to Control Sleep Mode

This command displays the number of seconds of inactivity (no characters sent from the DTE, no RING) in the off-line command state before the modem places itself into standby mode. A value of zero prevents standby mode. S24 is an alias for S89.

Note: If a number between 1 and 4 is entered for this register, it will set the value to 5, and the inactivity before standby will be 5 seconds. This is done for compatibility with previous products which allowed time-outs down to 1 s.

Range: 0, 5-65

Default: 10

S28 V.34 Modulation Enable/Disable

This register enables/disables V.34 modulation.

0 = disabled, 1 = enabled

Range: 0 -1

Default: 1

S30 Inactivity Timer

S30 specifies the length of time (in minutes) that the modem will wait before disconnecting when no data is sent or received. This function is only applicable to buffer mode.

B-10Intel® PRO/100 SP Mobile Combo Adapter: User’s Guide