89
RTN(+)
NEG(-)
9 Installing and Routing Subrack Power Cables
Universal Platform Subrack
d
Do not install or remove power cables while the equipment is
powered on. Ensure that the power is switched off prior to removing
or installing a power cable to avoid bodily injuries.
WARNING
Diagonal pliers
Cable tie
Phillips screwdriver
The protruding side of the two-hole OT terminals on power
cables faces outwards. Connect the OT terminal of the -48
V power cable (blue) to the PIU NEG(-) terminal and the
RTN cable (black) to the PIU RTN(+) terminal.
Remove the front panel of the PIU board.
Inner
side of
the PIU
Inner
side of
the PIU
M3
2# screwdriver
0.39 ± 0.04 N.M
M6
3# screwdriver
4.90 ± 0.49 N.M
When power cables are preinstalled on subracks or on the right side of a cabinet
1. When a universal platform subrack is delivered with a cabinet, the subrack is pre-equipped with power cables
and the power cables are routed to the right side of the cabinet.
2. When a universal platform subrack needs to be installed on site, the power cables are preinstalled on its right
side of the cabinet regardless of whether the universal platform subrack is co-resident with T32/T64 subracks or
is deployed alone.
NOTE
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