Installing Your Server Adapter
13
ENGLISH
Step Two: Connect your ISDN line
PRI signals can have telephone network voltages (TNV). Therefore,
PRI lines should be installed and maintained by service personnel only.
It may be hazardous if your computer is not properly plugged in and
grounded. This applies particularly to users in North America and
Australia.
The DIVA Server PRI has a built-in CSU (channel service unit) to
protect the adapter from damage due to power surges. However, you can
also use an external CSU, which allows you to test your ISDN line.
Use one of the cables included with the card to connect your ISDN line:
• RJ-45 to RJ-45
• RJ-45 to open-ended cables for connection to your NT
The cable you use depends on whether the ISDN line was installed with an RJ-45
jack or uses open-ended wire connections.
If the ISDN line is installed with an RJ-45 jack:
Use the supplied RJ-45 to RJ-45 cable:
Note
For E1 Mode with 75 Ohm Impedance, use an external 75 Ohm Balun
Adapter. You can purchase such an adapter from specialized stores.
Connect your ISDN line as shown:
DIVA Server PRI Signals RJ-45
Terminal Remarks
Pin 1 Receive + (RX +) Pin 1 twisted w. Receive- (RX -)
Pin 2 Receive - (RX -) Pin 2 twisted w. Receive+ (RX +)
Pin 4 Transmit + (TX +) Pin 4 twisted w. Transmit- (TX -)
Pin 5 Transmit - (TX -) Pin 5 twisted w. Transmit+ (TX +)
shielded plug overall shielded shielded plug foil shield
1. Take the cable
included with the
adapter.
Server
adapter
2. Plug one end into
the adapter.
3. Plug the other
end into the NT,
CSU, or wall jack.
Primary Rate ISDN line