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5.1.4 Provision Rules for FAP Fuse Locations
The following are provisioning rules for fuse placement apply to FAP P/N870-2804-xx:
•
Maximum fuse size 3 amp.
•
Fuse positions 19 and 20 not used.
•
Power feed must originate from the same power source.
•
Fuse and Alarm Panel Shorting board in bypass mode must be less than 40 amp
per distributed output side.
These provisioning rules for fuse placement apply to FAPs P/N 870-1606-xx and P/N
870-2320-xx.
•
Maximum fuse size 3 amp for Fuse one through Fuse 18 when P1, P2, or P3 are
used for power output
•
P2 cannot be used if the Terminal Strip (output) position 12 is used.
•
P3 cannot be used if the Terminal Strip (output) position 18 is used.
•
Fuse maximum of 15 amp for fuse positions 12, 18, 19, and 20, all other fuse
positions are 3 amp.
•
Power feed must originate from the same power source.
•
Fuse and Alarm Panel, Jumper Board (P/N 870-1641-01) fuse size on boards 40
amp per side for P/N 870-1606-02 Rev A and B, and for P/N 870-2320-01 Rev A
through I. Fuse size on boards 60 amp per side for P/N 870-1606-02 Rev C and
870-2320-01 Rev J.
•
Fuse and Alarm Panel, Jumper board in maintenance mode must be less than 40
amp per distributed output side.
5.2 Installing Power Cables
Each frame is divided into A and B power buses. If loss of power on one of the buses
occurs, the other bus must be able to supply current for the entire frame. Therefore,
each bus requires wiring sized to match the FAP selection, with a maximum voltage
drop of 0.5 volts. All frames containing HCMIM cards require 60A. The site voltage
input to each frame should be between -40VDC and -57.5VDC. To meet this
specification:
•
Fuse and wire each bus to support 40A if you have a FAP 870-2320-03 Rev A
through Rev I, 870-0243-08 Rev C, or 870-0243-09 Rev C.
Note:
For fuse locations 12, 18, 19, and 20, the fuse maximum is 10 amp when
adjacent locations are used.
Chapter 5
Installing Power Cables
5-12
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