Thermal Solutions ProtoNode Start-up Guide
Page 15 of 47
4.2 Device Connections to ProtoNode
ProtoNode 6 Pin Phoenix connector:
•
The 6 pin Phoenix connector is the same for ProtoNode FPC-N34 (BACnet) and FPC-N35
(LonWorks).
•
Pins 1 through 3 are for Modbus RS-485 devices (boiler side).
o
Use standard grounding principles for RS-485 GND
•
Pins 4 through 6 are for power.
Do not connect power
until
Device Pins
ProtoNode Pin
#
Pin
Assignment
Modbus RS-485 +
Pin 1
Tx/ +
Modbus RS-485 -
Pin 2
Rx/ -
Modbus GND
Pin 3
GND
9-30vDC or 12-24vAC(+)
Pin 4
PWR +
Neutral (-)
Pin 5
PWR -
Ground
Pin 6
FRAME GND
Figure 10: RS-485 and Power Connections
. .
.
