Nortel Networks NN43021-110 manual Top cap, Trunk, Universal equipment module UEM

68List of terms

top cap

A top cap is mounted on the top module of each column. It provides airflow exits, EMI/RFI shielding, I/O cable entry and exit, and overhead cable-rack mounting. The top cap covers thermal sensor assemblies for the column.

trunk

A single circuit between two points, both of which are switching centers or individual distribution points.

universal equipment module (UEM)

A modular, self-contained hardware cabinet that houses a card cage, power supply, backplane, circuit cards, and other basic equipment. When equipped, the UEM becomes a specific type of module, such as a CPU module or Network module.

UPS

Universal Power Supply

V AC

Voltage Alternating Current

V DC

Voltage Direct Current

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Large System Overview

NN43021-110 02.05 Standard

30 September 2008

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