Table 4: Communications bus and supply power terminal blocks, functions, ratings, requirements, and
cables
Terminal block/
Port label
Terminal labels
Function, electrical ratings/Requirements
Recommended cable type
+
-
FC Bus Communications
COM
Signal Reference (Common) for Bus
communications
FC BUS
SHLD
Isolated terminal (optional shield drain
connection )
0.6 mm (22 AWG) stranded, 3-wire
twisted, shielded cable recommended
FC BUS
(Port)
RJ-12 6-Position Modular Connector provides:
FC Bus Communications
FC Bus Signal Reference and 15 VDC Common
15 VDC, 180 mA, Power for Bluetooth
Commissioning Converter
Bluetooth Commissioning Converter
retractable cable or 24 AWG 3-pair
CAT 3 cable or above.
+
-
SA Bus Communications
COM
SA Bus Signal Reference and 15 VDC Common
SA BUS
SA PWR
15 VDC Supply Power for Devices on the SA Bus
(Maximum total current draw for SA Bus is 240
mA.)
0.6 mm (22 AWG) stranded, 4-wire
(2 twisted-pairs), shielded cable
recommended.
Note:
The + and - wire are one
twisted pair, and the COM and
SA PWR are the second twisted
pair of wires.
Sensor
(Port)
SENSOR
RJ-12 6-Position Modular Connector provides:
SA Bus Communications
SA Bus Signal Reference and 15 VDC Common
15 VDC Power for devices on the SA bus and
Bluetooth Commissioning Converter
24 AWG 3-pair CAT3 cable <30.5 m
(100 ft)
HOT
24 VAC Power Supply - Hot
Supply 20–30 VAC (Nominal 24 VAC)
24~
COM
24 VAC Power Supply Common
(Isolated from
all other Common terminals on controller)
14 VA
0.8 mm to 1.0 mm
(18 AWG) 2-wire
FAC3613 Advanced Application Field Equipment Controller Installation Guide
10
