COMSPHERE 392xPlus Modems
G-4 November 1996 3920-A2-GN31-30
Extended Point-to-Point

Figure G-2 shows a sample configuration for extended point-to-point applications.

DTE
(Sync)
Cable
1
Cable 2
Cable 2
Leased
4800(V32b) 4800(V32b)
TX TX
Cable 1
Cable 2
Cable 2
Leased
28800(V34) 28800(V34)
TX TX
Cable 1
Cable 1
Cable 1
9600
9600
4800
4800
Cable 1
Cable 1
Cable 1
Cable 3
9600
9600
4800
4800
DTE
(Sync)
DTE
(Sync)
DTE
(Sync)
DTE
(Sync) 3920
Plus
A3920
Plus
B
3910 B
3910 A
1
2
3
4
1
2
3
4
4800

Figure G-2. Sample Configuration — Extended Point-to-Point

Configuration Options
3920Plus A Use Sync Leased (Answer) default configuration options with the following
exception:
Rate Refer to Sample Port Rate T
able in this section.
3920Plus B Use Sync Leased (Originate) default configuration options with the following

exceptions:

TX Clock Source Set to RXC_Loop.

Rate Refer to Sample Port Rate T
able in this section.

Port TXC Source Set Port 4 to External.