Location Of The Bims; Functions Of The Bims - Nortel Passport 15000 Hardware Description

When one Passport 15000 or 20000 is shipped in the NEBS 2000 frame, the
insulation boots and lugs are provided for the second set of BIMs. This
accommodates adding a second switch of the same kind to the frame. The
equipment package NTQS10 or NTQH10 includes the wiring harnesses for
adding a second shelf.

Location of the BIMs

The breaker interface modules (BIMs) are located in the breaker interface
panel (BIP). In four-BIM models, all BIM slots are filled up to the alarm
module. In two-BIM models, the BIMs are located in the two right-hand slots
next to the alarm module, with the two left BIM slots covered with filler
plates. See the figure "The BIP in a NEBS 2000 frame, front view" (page 52).
See "BIM filler plates" (page 62).

Functions of the BIMs

The power breakers on each BIM control the -48/-60 V dc A and B power
supplies to the power interface modules (PIMs) and to the upper and lower
cooling units. See the figure "The BIP in a NEBS 2000 frame, front view"
(page 52) for the location of the power breakers.
For a Passport 15000, each BIM with PEC NT6C60PA supports a maximum
of five PCB-mount circuit breakers made up of four 20-amp shelf breakers
and one central 5-amp cooling unit breaker. See the table "Circuit breaker
configuration for each BIM of a Passport 15000 or 20000" (page 55). The
position of the breaker is relative to facing the front of the BIP.
Table 1
Circuit breaker configuration for each BIM of a Passport 15000 or 20000
Location of
circuit breaker
Passport 15000 20 amp
Passport 20000 25 amp
Chapter 2 Breaker interface panel 55
Left Middle
left
20 amp
25 amp
shelf shelf
upper half upper half
Passport 15000, 20000 Hardware Description
Middle Middle
right
5 amp 20 amp
5 amp 25 amp
cooling shelf
units lower half
Right
20 amp
25 amp
shelf
lower half
5.2S2