Model SK-5208 Fire Control/Communicator Installation and Operation Manual
3-30 P/N 151204
3.14.4.1 Zone Inputs
Figure 3-20 and Figure 3-21 shows how to wire detectors to the SK-5217. Use a 4.7k end of
line resistor for each Class B circuit. The EOL must be wired in parallel with the normally
open contact farthest from the panel. See Appendix A for a list of the smoke detectors that can
be used with the SK-5217.
Maximum circuit Resistance - 50 ohms
Maximum Total alarm current for all class B (style A) zones - 1 A
Maximum Standby Current per Zone: 3.0 mA
Maximum Alarm Current per Zone: 95 mA
Voltage: 17.5 to 28 VDC
Figure 3-20 Model SK-5217 Two-wire Detectors
Figure 3-21 4-Wire Detector Connections
Device ID Dip Switches
Supervised
Power Limited
4.7kΩ
UL Listed
EOL Resistor
Model 7628
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