Installation
ENGLISH
29
Note: If the adapter is not properly connected to the ISDN PRI, E1, or T1 line, a
layer 1 warning light appears on the NT, the adapter, the external CSU, and at the
switching center of the network provider. The network provider might then
deactivate the line. If this occurs, you must contact your network provider to
reactivate your line.
If the Diva Server PRI adapter is run in back-to-back mode:
The Diva Server software enables you to configure Diva Server PRI adapters as
network termination (NT). This means you can use two Diva Server adapters in
back-to-back operation.
When using Diva Server adapters back-to-back, configure one adapter as an NT
and the other one as TE. Connect the adapters with a crossover cable. You can
build your own crossover cable using the open-ended cable supplied with your
Diva Server PRI adapter. Just crimp the open end according to the NT-side
assignment shown in this diagram:
Note: Looking at the RJ45 connector with the exposed connector pins facing you,
the pins are numbered from 1 to 8 from left to right (as shown below).
TE Side
NT Side
Pins on RJ45
Signals
Wiring
Signals
1
RX +
RX +
2
RX -
RX -
3
not used
4
TX +
TX +
5
TX -
TX -
6
not used
7
not used
8
not used
1
8
VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 600030