9
Wiring Connections to ProtoNode RER (FPC-N34 BACnet)
and ProtoNode LER (FPC-N35 LonWorks)
Figure 5. Power and RS485 pin outs
(Tx/+)
(Rx/-)
Connecting the VERSA IC Modbus port to the
ProtoNode’s Phoenix 6 pin connector.
• Connect VERSA IC Modbus pin A (RS485+) to the ProtoNode’s pin 1 (RS485+) on the Phoenix 6 pin connector.
• Connect VERSA IC Modbus pin B (RS485-) to the ProtoNode’s pin 2 (RS485-) on the Phoenix 6 pin connector.
• Connect VERSA IC Modbus pin GND (Ground) and the ProtoNode’s pin 3 (Signal Ground) on the Phoenix 6 pin
connector.
Figure 6. VERSA IC Modbus RS485 pin outs to the ProtoNode’s Modbus port
Raypak Pin #
ProtoNode
Pin Assignment
MODBUS A (+)
Pin 1
RS-485 +
MODBUS B (-)
Pin 2
RS-485 -
MODBUS GND
Pin 3
RS-485 GND
Power In (+)
Pin 4
V +
Power In (-)
Pin 5
V -
Frame Ground
Pin 6
Frame GND
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