Sources Of Dc Input Power To The Bip Backplane; Powering The Bip From Ac Rectifiers - Nortel Passport 15000 Hardware Description

Sources of dc input power to the BIP backplane

Powering the BIP from ac rectifiers
The breaker interface panel (BIP) of a Passport 15000 receives and distributes
dc power for the system. The source of dc power can be from either:
• a dc power setup for the building or room of operation at the site
• co-located ac rectifiers, for example, when using an Astec MFA150
power system
Most of the preparations and requirements for dc power cabling between the
MFA150 rectifiers and the BIP of the Passport 15000 have the same criteria
as cabling from a site dc power plant. For information of this kind, see
241-1501-205 Passport 15000, 20000 Site Requirements and Preparation
Guide.
The BIP can be powered from any system of ac rectifiers that provides the
power, safety, and performance required to operate one or two Passport 15000
or 20000 shelves (not a combination). Nortel Networks recommends using
one of the configurations of the Astec MFA150 power system of rectifiers.
The system is manufactured by Astec Advanced Power Systems. Consult
your Nortel Networks sales representative for the available equipment. For an
example, see the figure "MFA150 power system of five rectifiers for a dual
shelf configuration" (page 84).
One configuration provides up to 100 A of dc power with 25 A of redundancy
for two Passport 15000 or 20000 shelves (50 A per shelf). Another
configuration provides 50 A of dc power with 25 A of redundancy for one
Passport 15000 or 20000 shelf. Both configurations support n+1 redundant
sparing of power output.
The MFA150 system consists of an integrated distribution and control panel
and one or two rectifier shelves. Optional parts include an external battery
return panel and a battery disconnect panel. Supplementary distribution and
battery trays can also be added. The system may be engineered on a standard
59-cm (23-inch) relay rack or in a special wall-mounted enclosure.
To plan for the installation of an Astec MFA150 power system of ac rectifiers,
refer to 241-1501-205 Passport 15000, 20000 Site Requirements and
Preparation Guide.
Chapter 2 Breaker interface panel 83
Passport 15000, 20000 Hardware Description 5.2S2