Commend C-G8-S0 Manual page 12

Start Up S0 Network
Connection Diagram
For connection to the Intercom Server, the installation board G8A-C has to be used (included in extent
of supply).
If the socket RJ 45 is installed by your Telecom provider, the termination resistors (2 x 100 Ohm) are
usually already integrated.
If the installation board G8A-C is connected directly to the NTBA, no termination resistors are
necessary, but the line may not be longer than 10 m (32.8 ft).
Socket RJ45
4 max. 10 m (33 ft)
1st S0
2nd S0
not
connected
not
connected
G8A-C
12
S0 Bus 4-wire, max. 150m
(max. 492 ft)
3 2a
4 1a
5 1b
6 2b
If a twisted pair cable is used,
1a should be twisted with 1b
and 2a with 2b
Plug connection
2a
(not connected
1 2
with G3-S0-I )
a
b
a2
a1
b1
b2
NT (Network Termination)
1a
1b 2b
3 4 5 6
7 8
So cket
G8-S0/G3-S0-I
ISDN
connection
2b 1b 1a 2a
6 5 4 3
Plug
1.1/1010