Multi-Tech Systems ISIHP-4SD, ISIHP-4U S37 Maximum Dial Line Rate, S42 Enable / Disable Auto Rate

Modem AT Commands & S-Registers

S37 Maximum Dial Line Rate

Unit: decimal

Range: 0–19

Default: 0

Sets the maximum dial line rate. When set to zero (0), the maximum dial line rate is the same as the maximum modem speed. This is the most common setting and allows other modem functions to actually determine the line rate used for each connection. It is the default. Consider using S37 to set a maximum dial line rate if you need to artificially retain a lower modem speed.

0 = maximum modem speed		13 = 19200 bps
1 = reserved		14= 21600 bps
2	= 1200/75 bps	15 = 2400 bps
3	= 300 bps	16 = 26400 bps
4 = reserved		17 = 28800 bps
5	= 1200 bps	18 = 31200 bps
6	= 2400 bps	19 = 33600 bps
7	= 4800 bps
8	= 7200 bps
9	= 9600 bps

10 = 12000 bps

11 = 14400 bps

12 = 16800 bps

S42 Enable / Disable Auto Rate

Unit: decimal

Range: 0-1

Default: 1 (enabled)

Enables and disables the 56K auto rate. Retrain and fallback are disabled in data mode. Set S42 to zero (0) to disable auto rate, or 1 (the default) to enable auto rate.

S43 Enable / Disable V.32bis Start-up Auto Mode

Unit: decimal

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