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COMSPHERE 3900 Series Modems
S-Register
S93
V.29 Retrain. When enabled, the modem transmits a training
sequence whenever it receives one. This configuration option should
normally be disabled for control modems.
Register has the following values:
0 = Enable
1 = Disable
The factory setting is Enable.
S94
V29 Link Configuration. Selects point-to-point or multipoint operation.
Register has the following values:
0 = PointToPoint
1 = Multipoint
The factory setting is PointToPoint.
S95
Trellis Multipoint (TMp) Train Time. Defines the length of time energy
is sent from the tributary modem to the control modem. More severe
line conditions require longer time selections.
Register has the following values:
0 = 10 milliseconds
1 = 20 milliseconds
2 = 50 milliseconds
3 = 100 milliseconds
4 = 200 milliseconds
5 = 300 milliseconds
The factory setting is 0 (10 milliseconds).
S96
Trellis Multipoint (TMp) Tx Preemphasis. Provides amplification for
frequencies above the carrier frequency to compensate for high
frequency line attenuation.
Register has the following values:
0 = Disable
1 = Enable
The factory setting is Disable.
14-26
Table 14-3
(12 of 13)
391x Series S-Registers
Description
September 1998
DCP LCD
Command
Sequence
Configure\Edit\
Leased
Configure\Edit\
Leased
Configure\Edit\
Leased
Configure\Edit\
Leased
3910-A2-GN32-40
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