CLASS “B” WIRING
BRANCH RESISTANCE
Short the termination point of one branch at a time and measure the DC resistance, from the beginning of the channel to
the end of that particular branch.
The total DC resistance from panel to branch end CANNOT exceed 40 Ohm.
Repeat the procedure for all remaining branches.
The total of all branches on Channel B
CANNOT
exceed 3000 meters.
The total of all branches on Channel A
CANNOT
exceed 3000 meters.
AM-6000-60001.VP Installation Manual Page 18
Doc. M-180.2-AM6000-ENG Rev. B.1 NOTIFIER ITALIA
Branch A
SLC Loop
Branch D
Branch B
Branch C
Branch E
SHIELDSHIELD
Channel A or B
Branch
For each channel:
Add the lenghts of all branches. The TOTAL CANNOT exceed 3000 mt.
(Branch A)+(Branch B)+(Branch C)+(Branch D)+(Branch E) < =
3000 meters
Channel B
Channel A
SHIELD