PEAK® OEM 32 24 Volt SMART Equipment Controller Installation Instructions
22
•
Refer to the
MS/TP Communications Bus Technical Bulletin (LIT-12011034)
for detailed information about wire
size and cable length requirements for the SA and FC buses.
•
Refer to the
N2 Communications Bus Technical Bulletin (LIT-636032)
for detailed information about wire size
and cable length requirements for the N2 bus.
Table 7: Communication 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/
SA BUS
FC BUS
(Upper)
+
FC bus communications
0.6 mm
2
(22 AWG) stranded, 3-wire twisted,
shielded cable is best practice
-
COM
Signal reference (Common) for bus
communications
SHD
Isolated terminal (optional shield
drain connection)
SA BUS
(Port)
SA BUS
RJ-12 6-Position Modular Connector
provides: SA bus communications
SA bus signal reference and 15 VDC
common
15 VDC, 71.5 ohms at 4 W, power for
Bluetooth Commissioning Converter
or ZFR3211 Wireless Router
N/A (24 AWG) 3-pair CAT3 cable <30.5 m (100
ft)
FC BUS/
SA Bus
SA BUS
(Lower)
+
SA bus communications
0.6 mm
2
(22 AWG) stranded, 4-wire (2 twisted-
pairs), shielded cable is best practice.
Note:
The + and
-
wire are one twisted pair,
and the COM and SA PWR are the second
twisted pair of wires.
-
COM
SA bus signal reference and 15 VDC
common
PWR
15 VDC supply power for devices on
the SA bus (Maximum total current
draw for SA bus is 240 mA.)
24~ INPUT
HOT
24 VAC Power Supply
–
Hot
Supplies 20 VAC–30 VAC (Nominal
24 VAC)
0.8 mm
2
to 1.5 mm
2
(32 AWG) 2-wire
COM
24 VAC Power Supply Common
(Isolated from all other common
terminals on controller)
20 VA at 24 VAC nominal
MODBUS
+
Modbus communications
0.6 mm
2
(22 AWG) stranded, 4-wire
(2 twisted pairs), shielded cable is best
practice
-
COM
Signal reference (Common) for bus
communications
24~ OUT
24~
24 VAC Utility Supply
(for actuators)
- 80 mA continuous
0.8 mm
2
to 1.5 mm
2
(18 AWG) 2-wire
COM
24 VAC Power Supply Common
