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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.
Chapter 4 - S-Registers
62
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