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FireLite SLC Wiring Manual — P/N 51309:R3 7/29/2019
Section 2: Wiring Requirements
2.1 Wire Sizing
The SLC requires use of a specific wire type, depending on the mode of operation, to ensure proper circuit functioning. Wire size should
be no smaller than 18 AWG (0.75 mm
2
) and no larger than 12 AWG (3.25 mm
2
) wire. The wire size depends on the length of the SLC
circuit. It is recommended that all SLC wiring be twisted-pair to minimize the effects of electrical interference.
2.1.1 CLIP (Classic Loop Interface Protocol) Mode
All addressable FACPs can operate in CLIP (Classic Loop Interface Protocol) mode. It is recommended that all SLC wiring be twisted-
pair and shielded when operating in CLIP mode to reduce the effects of electrical interference. Use the table below to determine the spe-
cific wiring requirements for the SLC.
2.1.2 LiteSpeed Mode
The ES-50X, ES-200X, MS-9200UDLS, MS-9600LS, and MS-9600UDLS SLC can be programmed to operate in LiteSpeed mode for a
quicker device response time. While shielded wire is not required, it is recommended that all SLC wiring be twisted-pair to minimize the
effects of electrical interference. Use the following table to determine the specific wiring requirements for the SLC.
2.2 Measuring Resistance & Length
2.2.1 Two-Wire SLC - Class B
Loop Resistance
T-tapping of the SLC wiring is permitted for 2-wire Class B configurations. The total DC resistance from the control panel to each
branch end cannot exceed 40 ohms. Measure DC resistance as detailed and shown below:
1. With power removed, short the termination point of one branch at a time and measure the DC resistance from the beginning of the
SLC to the end of that particular branch.
Wire Requirements Distance in Feet (meters) Wire Size Wire Type
Twisted-pair, shielded 10,000 feet (3,048 m) 12 AWG (3.1 mm
2
) Belden 9583, Genesis 4410,
Signal 98230, WPW D999
8,000 feet (2,438 m) 14 AWG (2.0 mm
2
) Belden 9581, Genesis 4408,
Signal 98430, WPW D995
4,875 feet (1,486 m) 16 AWG (1.3 mm
2
) Belden 9575, Genesis 4406, &
4606, Signal 98630, WPW D991
3,225 feet (983 m) 18 AWG (0.75 mm
2
) Belden 9574, Genesis 4402 &
4602, Signal 98300, WPW D975
Untwisted, unshielded
wire, inside conduit or
not in conduit
MS-9200 = 1,000 feet (305 m)
12 to 18 AWG
MS-9600, MS-9600LS(C) &
MS-9600UDLS = 3,000 feet (914 m)
MS-9200UD & MS-9200UDLS = 3,000 feet (914 m)
MS-9050UD = 3,000 feet (914 m)
ES-50X & ES-200X = 3,000 feet (914 m)
Table 2.1 SLC Wiring Requirements in CLIP Mode
Wire Requirements Distance in Feet (meters) Wire Size Wire Type
Twisted-pair, unshielded 10,000 feet (3,048 m) 12 AWG (3.1 mm
2
) Belden 5020UL & 6020UL,
Genesis WG-4315 & WG-4515
8,000 feet (2,438 m) 14 AWG (2.0 mm
2
) Belden 5120UL & 6120UL,
Genesis WG-4313 & WG-4513
4,875 feet (1,486 m) 16 AWG (1.3 mm
2
) Belden 5220UL & 6220UL,
Genesis WG-4311 & WG-4511
3,225 feet (983 m) 18 AWG (0.75 mm
2
) Belden 5320UL & 6320UL,
Genesis WG-4306 & WG-4506
Table 2.2 SLC Wiring Requirements in LiteSpeed Mode
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