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COMSPHERE 3900 Series Modems
14-26 September 1998 3910-A2-GN32-40
Table 14-3
(12 of 13)
391x Series S-Registers
S-Register
DCP LCD
Command
Sequence
Description
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.
Configure\Edit\
Leased
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.
Configure\Edit\
Leased
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).
Configure\Edit\
Leased
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.
Configure\Edit\
Leased