COMSPHERE 3900 Series Modems

Table 14-3

(12 of 13)

391x Series S-Registers

S-Register

 

Description

DCP LCD

 

Command

 

 

 

Sequence

 

 

 

S93

V.29 Retrain. When enabled, the modem transmits a training

Configure\Edit\

 

sequence whenever it receives one. This configuration option should

Leased

 

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.

Configure\Edit\

 

Register has the following values:

Leased

 

 

 

0

= PointToPoint

 

 

1

= Multipoint

 

 

The factory setting is PointToPoint.

 

 

 

 

S95

Trellis Multipoint (TMp) Train Time. Defines the length of time energy

Configure\Edit\

 

is sent from the tributary modem to the control modem. More severe

Leased

 

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

Configure\Edit\

 

frequencies above the carrier frequency to compensate for high

Leased

 

frequency line attenuation.

 

 

Register has the following values:

 

 

0

= Disable

 

 

1

= Enable

 

 

The factory setting is Disable.

 

 

 

 

 

14-26

September 1998

3910-A2-GN32-40

Page 216
Image 216
Digicom 3911, 3910 operation manual 14-26