Nortel TDM Recorder, Installation Manual

Page: 28 / 128

Recorder Hardware Installation Standard 3.0
28 Nortel TDM Recorder
Using a Bridging Adapter
A 25 pair bridging adapter is inserted between the Succession Switch and
the punch-down block that breaks out to phones. It is preferable that the
adapter is as close to the switch as possible. The switch plugs into the first
RJ-21X connector on the adapter, after which the NGX and punch-down
block can connect to either of the remaining connectors on the adapter. This
configuration offers the most flexibility. It allows the NGX to passively tap
the switch without having to interface to the punch-down block. The signal
quality is optimized because it is routed to the NGX before reaching the
punch-down block.
The Bridging Adapter is the recommended method of passively tapping
with the NGX. If this solution is not possible, consider Bridge Clips first or
Dual Punch-down Blocks.
Succession Swith
Bridging
Adapter
Punch-down block
NGX Wiring with Y-Splitter Scenario
Phones
LEGEND:
RJ-21 X Connector
Standard Twisted
Pair Cable
50-Pin Centronics
ML Cable
NGX Voice Card
1 1 2 2 3 3
Succession Switch
NGX Wiring with Bridge Adapter Scenario