Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 256 / 874

256 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Procedure steps
1 Facing the front of the BIP, ensure the middle breakers of BIMs A1 and B1
on the left half are off (O is pressed in).
2 At the rear of the BIP on BIM A2, from the connection labeled A, trace the
individual cable down to the loose connector at the other end. The cable
assembly may be labelled NTHR66. See the figure “Power and alarm
cable paths between the BIP and cooling units” (page 257).
3 Plug the loose connector into the receptacle labelled PWR A on the
second (upper) cooling unit at the front of the NEBS 2000 frame. A tab on
the connector engages when fully plugged in.
4 At the rear of the BIP on BIM B2, from the connection labelled B, trace the
cable down to its other connector and plug it into the receptacle labelled
PWR B on the second (upper) cooling unit at the front of the frame.
5 From the 3 upper temperature sensors labelled S1, S2, and S3, trace the
cable down to its other connector and plug it into the receptacle labelled
TEMP. SENS. on the second (upper) cooling unit at the front of the frame.
6 From the alarm/BITS module of the upper shelf assembly (the second
switch) at the connection labeled J5, trace the cable (NTHR57) down to
its other connector and plug it into the receptacle labeled ALARM on the
lower (front) cooling unit. A tab on the connector engages when fully
plugged in.