SilentKnight SK-5208 Conventional FACP 10-30 Zone - Manual (Page 22)

Control Panel Installation 151204
3-12
Maximum circuit Resistance - 50 ohms
Maximum Total alarm current for all Class B (Style B) zones - 1 A
Maximum Standby Current per Zone:3.0 mA
Maximum Alarm Current per Zone:95 mA
3.11.3 Four-Wire Smoke Detector Connection
Figure 3-7 illustrates how UL listed four-wire smoke detectors must be connected to Class B (Style B) zones.
When wiring a four-wire smoke detector to the Class B (Style B) zones, you must use a Power Supervision Unit,
such as Silent Knight’s 160150.
Note: Mount the PAM-2 and the end-of-line resistor at the last device on the circuit.
Figure 3-7 Four-Wire Smoke Detector Wiring
See Appendix A for a list of four-wire smoke detectors that may be used with the SK-5208.
Supervised
Power Limited