Potter PFC-9000 Series - Manual (Page 35)

35
PFC-9000 • 5403535 • REV G • 9/08
SLC Wiring Styles
The National Fire Code defines the minimum requirements for Signaling Line Circuits and the respective operating parameters
with a fault condition. Consult the local AHJ to determine which class and style of wiring is required.
Class B (Style 4) Addressable Loop Wire Terminations
SLC LOOP
CLASS B
4W SUP AUX PWR
AUX. POWER
24 VDC UNFILTERED, 1.7 MAX
CLASS B USE LEFT
POSITIVE AND NEGATIVE
PFC-9000
FACP
127 DEVICES PER LOOP, ANY
COMBINATION OF SENSORS
AND MODULES
A MAX. OF 50 DEVICES PER T-TAP
UP TO 10 OHMS PER T-TAP
50 OHMS TOTAL RESISTANCE ON
SLC LOOP INCLUDING T-TAPS
(30,000 FEET 12 AWG CABLE)
KEY
SMOKE OR HEAT SENSOR
PSCI ISOLATOR
DWG# PFC-9000-35