Northern Telecom DNC-50 Installation Manual page 93

32 Installing the Cross-Connect Panel
Figure 8-12
Internal Cross-connections from an External Trunk to Analog Lines
From Analog Link SRU
(Three 25-pair cables)
25-pair cables terminate
on 25-pair connectors
T R T R T R T R
A B A B
1 2
(Note)
T R T R T R T R
1 2
Practice 450-1011-201
A
B
C
A
To BIX Connectors
for Rows B and C
T R T R T R T R T R T R T R T R
A B A B A B A B A
3 4 5
T R T R T R T R T R T R T R T R
3 4 5
Note: The Analog Link lines may be accessed directly on the BIX punching block terminals, or
via the external TRUNK Connector interface. A jumper must cross-connect each
line to the BIX punching block for the TRUNK interface connector.
C
B
TRKS
Internal wiring between 25-pair connectors and
BIX punching blocks.
T R T R T R T R T R T R
B A B A B A B
6 7 8 9
T R T R T R T R T R T R
6 7 8 9
To PBX or CO
Trunk Interface
OFFICE CROSS-CONNECT PANEL
(BIX Connectors)
T R T R
Row A
10
T R T R T R T R T R T R
Trunks
10 11 12