Model SCSS-700 Installation Manual
7-2
53722
7.2
Maximum Number of SLC Devices
The maximum number of SLC devices per panel is 636. The number of 5815XL’s is limited
only by the maximum number of SBUS devices.
The SLC points can be all sensors or all modules or any combination of modules and sensors.
7.3
Wiring Requirements for SLC Devices
The following information applies to all SLC devices. Refer to the section that describes the
type of device you are installing for details.
7.3.1
Wiring 5815XL 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.
Maximum loop length depends on the wire gauge. See Table 7-1.
Table 7-1 Maximum wiring distance for LiteSpeed devices
Wire Gauge
Max. Distance for
LiteSpeed
22 AWG
1200 feet
18 AWG
3100 feet
16 AWG
4900 feet
14 AWG
7900 feet
12 AWG
10,000 feet
Summary of Contents for SCSS-700
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