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Page 42 of 436
Preparing for installation
System equipment – UEMs
UEMs are stacked in columns
NN43021-310
Standard 06.01
Before system equipment is delivered to the installation site, you must
consider these requirements:
•
Fire protection and safety requirements
•
Equipment room requirements
•
Grounding and power requirements
•
Cable requirements
Specifications for these requirements and for developing the equipment room
floor plan are in Communication Server 1000M and Meridian 1
Large System Planning and Engineering (NN43021-220).
Universal Equipment Modules (UEM) are the building blocks of the
communication system. UEMs are generic metal frames equipped with
covers. Each UEM is a self-contained unit with power, a card cage, I/O
panels, and cable routing channels. Each UEM houses sets of equipment used
in system operations (see Figure 2 on
UEMs are stacked in columns, up to four modules high. Within a column, the
levels are referred to as tiers. The UEMs are numbered 0 to 3 from the bottom
up (see Figure 2 on
between two modules, and between cards and the I/O panel in the same
module.
Column components
Each column contains a pedestal base, a top cap, and up to four modules.
Pedestals
Each column sits on a pedestal. The pedestal contains power, cooling, and
system monitoring equipment.
•
A Power Distribution Unit (PDU) in the back of the pedestal supplies
either AC or DC power to the column.
March 2013
page
page
43). Cables connect cards in the same module,
43).
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