7- Connect The Exchange Lines - NEC SL2100 Quick Install Manual

Connect the Exchange Lines

7- Connect the Exchange Lines

The SL2100 chassis does not have any trunk ports pre-installed, you install the trunk card of your choice.
ISDN PRI circuit Trunk port allocation
Circuit 1 Trunk ports 1-30
PRI1 Pin
No.
8
7
6
5
8 765 4321
4
3
2
1
Note – The circuit of the 1PRIDB card can be set as ISDN S-Bus (Station Interface), this mode is not covered
within this guide, refer to the SL2100 Hardware Manual for details.
Quick Install Guide – SL2100 with ISDN PRI Trunks rev 1.1
The SL2100 1PRIDB card has
an RJ45 connector.
Use a standard (straight
through) RJ45 Patch cable to
connect to the exchange lines.
PRI T-bus RJ45 Colour code
connection
-
-
-
TB1 White/blue
Blue/white
TA1
-
White/Orange
RB1
Orange/white
RA1
RJ45
19