Chapter 4 - S-Registers

S43

Force V.34 Connect Speed

 

Unit: N/A

 

Range: 0, 33, 31, 28, 26, 24, 21, 19, 16, 14, 12, 96, or 48

 

Default: 0 (disabled)

S43 forces the modem to attempt to connect at a fixed speed in V.34 mode. The two-digit value corresponds to the first two digits of the speed (S43=21 sets the connect speed to 21.6K bps, S43=96 sets it to 9600 bps, etc.). The factory default of zero disables this feature and allows the modem to establish the best speed for the conditions.

Note: The $MB command overrides S43 if the $MB command is set to a speed other than 33,600 bps.

S48

Maximum V.34 Connect Speed

 

Unit: N/A

 

Range: 0, 33, 31, 28, 26, 24, 21, 19, 16, 14, 12, 96, or 48

 

Default: 0 (disabled)

 

S48 sets the maximum speed in bps at which the modem can attempt to connect in V.34

 

mode. The two-digit value corresponds to the first two digits of the speed (S48=26 sets the

 

maximum connect speed to 26.4K bps, S48=48 sets it to 4800 bps, etc.). This register

 

allows you to set lower speeds for line conditions that will not support higher V.34 speeds

 

such as 33.6K, 31.2K, 28K, 26.4K, or 24K. The factory default of zero disables this feature

 

and allows the modem to establish the best speed for the conditions (in effect, it sets a

 

maximum connection attempt of 33.6K).

S94

Out-of-Service Time

 

Unit: 1 second

 

Range: 0–254, 255

 

Default: 45

S94 sets the maximum number of seconds, from 0 through 254, that the modem remains out of service when the *H1 command is active. A value of 255 causes the modem to remain out of service indefinitely. However, if the modem receives an enable command from the management program while the modem is out of service, the modem returns to service immediately, before the S94 time expires.

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Multi-Tech Systems MT2834MR6 manual Registers