Honeywell 6808 - SK Modules

76 6808 Manual — P/N LS10146-001SK-E:C 09/28/2017
SK, SD and SWIFT™Wireless SLC Device Installation
7.5.1 SK Modules
The SLC can be programmed to operate in SK mode. While shielded wire is not required, it is recommended that all SLC wiring be
twisted-pair to minimize the effects of electrical interference. Use Table 7.3 to determine the specific wiring requirements for the SLC.
Figure 7.1 and Figure 7.2 show how wire length is determines for out and back tap and T-Tap style wiring.
Figure 7.1 Calculating wire run length for a simple out and back tap
Wire Requirements Distance in Feet (meters) Wire Type
RECOMMENDED: Twisted-unshielded pair, 12
to 18 AWG (3.31mm
2
to 0.82 mm
2
). 50 ohms,
maximum per length of Style 6 & 7. 50 ohms per
branch maximum for Style 4 loop.
12,500 ft. (3,810 m)
9,500 ft. (2895.6 m)
6,000 ft. (1,828.8 m)
3,700 ft. (1,127.76 m)
12 AWG (3.31 mm
2
)
14 AWG (2.08 mm
2
)
16 AWG (1.31 mm
2
)
18 AWG (0.82 mm
2
)
Untwisted, unshielded wire, in conduit or
outside of conduit.
5,000 ft. (1,528 m)
3,700 ft. (,127.76 m)
12 to 16 AWG (3.31
2
mm to 1.31 mm
2
)
18 AWG (0.82 mm)
Twisted, shielded pair
Note:
• Shields must be isolated from ground
• Shields should be broken at each device
5,000 ft. (1524 m)
3,700 ft. (1,127.76 m)
12 to 16 AWG (3.31 mm
2
to 1.31 mm
2
)
18 AWG (0.82 mm
2
)
Note: Maximum total capacitance of all SLC wiring (both between conductors and from any conductor to ground)
should not exceed 0.5 micro farads.
Table 7.3 SLC Wiring Requirements for SK modules