Communication Server Large System Installation and Commissioning

Page 42 of 456 Preparing for installation
NN43021-310 Standard 02.01 December 2007
Figure 3
UEMs identified by function
Card cage
Inside each UEM is a metal card cage. This card cage holds the circuit cards,
power card, and related equipment for that module. UEMs are named for the
function of that card cage.
Card cages are bolted inside the UEM case. Card cages can be removed and
replaced for repairs or upgrades.