Powering The Bip From Ac Rectifiers - Nortel 15000 Hardware Description

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Breaker interface panel
Most of the preparations and requirements for dc power cabling between the
MFA150 rectifiers and the BIP of the Multiservice Switch 15000 have the
same criteria as cabling from a site dc power plant. For information of this kind,
see NN10600-125 Nortel Networks Multiservice Switch 15000/20000
Planning Site Requirements.

Powering the BIP from ac rectifiers

The BIP can be powered from any system of ac rectifiers that provides the
power, safety, and performance required to operate one or two Nortel
Networks Multiservice Switch 15000 or Multiservice Switch 20000 nodes (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 64).
One configuration provides up to 100 A of dc power with 25 A of redundancy
for two Multiservice Switch 15000 or Multiservice Switch 20000 nodes (50 A
per switch). Another configuration provides 50 A of dc power with 25 A of
redundancy for one switch. 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 NN10600-125 Nortel Networks Multiservice Switch 15000/20000
Planning Site Requirements.
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Copyright © 2005, Nortel Networks Nortel Networks Confidential