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1.
In Worksheet 1, enter devices used on the polling loop. Calculate total current draw on the polling loop.
Worksheet 1: Total Polling Loop Current Draw
Polling Loop Device
Current
# of Units
Total
Polling Loop Subtotal
(terminals 28 & 29 – 128mA)
*
*
The total current cannot exceed 128mA. If total load exceeds 128mA, then a 4297 Loop Extender Module can be used. This module is
powered from the panel’s auxiliary power, and provides a separate polling loop output, which can support an additional 128mA load.
Note that the total number of points connected to the panel cannot exceed 119.
2.
In Worksheet 2, enter devices used on Auxiliary Power 1. Calculate standby and alarm currents, then add to get
Auxiliary Power 1 current subtotal.
Worksheet 2: Auxiliary Power 1 Current Load
Total Current
Device
Model #
Device Current X
# of Units
Standby
Alarm
Auxiliary Power 1 Subtotal
(terminals 10 & 11)
1A max
.
(for Canada
650mA)
1.7A max.
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