Installing Cables; Installing Extension Cross-Connect Blocks; Installing Trunk Cross-Connect Blocks - NEC ux5000 Hardware Manual

S 3-4
ECTION

INSTALLING CABLES

3.4.1

Installing Extension Cross-Connect Blocks

It is recommended to install cross-connect blocks for each of the system's major extension port device groups.
Cross-connect blocks provide an easy way to troubleshoot, determine port identification numerically, and
determine port utilization.
Install cross-connect blocks for the following interfaces:
●
All digital extension circuits
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CCPU functions (i.e.; BGM, MOH, relay 1)
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External page
●
External alarms
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Data devices
3.4.2

Installing Trunk Cross-Connect Blocks

It is also recommended to install cross-connect blocks for each of the system's major trunk device groups.
Cross-connect blocks provide an easy way to troubleshoot, determine port identification numerically, and
determine trunk port utilization.
Install cross-connect from telco's RJ21X to the trunk cross-connect blocks for the following:
●
analog loop start lines
●
analog ground start trunks
●
DID trunks
●
Tie lines
Chapter 3
Chapter 3 - Installing Extensions and Trunks
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