SilentKnight SK-FFT - Manual (Page 30)

SK-FFT Installation and Operation Manual
4-2 54711
4.3 Wiring Requirements for SLC Device
The following information applies to the SK-Minimon - Mini Monitor module.
4.3.1 Wiring SLC in Style 4 (Class B) Configuration
No special wire is required for addressable loops. The wire can be untwisted,
unshielded, solid or stranded as long as it meets the National Electric Code 760-51
requirements for power limited fire protective signaling cables. Wire distances are
computed using copper wire.
Maximum wiring resistance is 40 ohms to the farthest SLC device.
Maximum loop length depends on the wire gauge.
Wire Gauge Max. Distance
22 AWG 1200 feet
18 AWG 3100 feet
16 AWG 4900 feet
14 AWG 7900 feet
12 AWG 10,000 feet