Nortel TDM Recorder User Manual page 78

System Setup and Administration
PBX
DETAIL
NGX Wiring with Bridge Clips Scenario
Using Bridge Clips limits you to wiring only one leg of the punch-down
block to the phones while the second leg must be dedicated entirely to the
NGX. Use this method only if the Y-Splitter method is not possible.
Using dual punch-down blocks
With dual punch-down blocks the PBX signal is duplicated by wiring each
channel on the main punch-down block to a second punch-down block that
connects to the NGX.
Use this configuration if you have no access to alter the PBX signal path
(which means you cannot use a Y-Splitter) or if you are not able to
reconfigure the punch-down block that routes the PBX to the phones (which
means you cannot use Bridge Clips).
78
Bridge clips
couple 1st leg
of punch-down
block to 2nd leg
Punch-down block
LEGEND:
RJ-21 X Connector
Bridge Clip
50-Pin Centronics
ML Cable
Standard Twisted
Pair Cable
Nortel TDM Recorder
Standard 3.0
Phones
NGX Voice Card