Installation guide

20
LOOP-WIRING CONFIGURATIONS cont.
Circuit Wiring for ULC-Listed Installations cont.
To series-connect three or more Form C devices, install the 4K3-ohm resistors in the first and
last contacts as shown below. Pay close attention to the wiring as an interchange will cause a
zone tamper alarm (a short on the loop).
To connect a normally open, fire-detector circuit, install one 2K2-ohm resistor in the last
detector or after the last detector using an EOL plate:
M ODEL