Input And Output Identification; Figure 7 - Input And Output Identification; Figure 8 - Rj45 Pinout - Prolon M2000 Series Hardware Manual

Input and Output Identification

All the inputs and outputs of the M2000 use pluggable screw type terminal blocks with elevator style
clamping, which make connections easier and more secure.
For incoming communication from a remote computer or network controller, dual RJ45 type connectors
are available in parallel with screw type terminal blocks. The RJ45 connectors allow the use of premade
CAT5 cables for simple plug-and-play RS485 communication. These RJ45 connectors follow the Modbus
pinout specification for RS485 communication.
RTU RTUS
Incoming communication INT Port: ProLon Digital
from remote computer or Temperature Sensor
network controller - OR -
(Dual RJ45 and Incoming RS485 Network
Terminal Blocks) Communication (Modbus)
AO 3 Bypass / VSD
AO 2 Economizer
AO 1 Preheating / Mod. Heat
DO 5 Heat (W2) / Exhaust Fan / Baseboard
DO 4 Heat (W1) / Preheat Perm.
DO 3 Cooling (Y2)
DO 2 Cooling (Y1)
DO 1 Fan (G)
Bottom Row:
Common for all outputs
REV. 6.1.8 / PL-HRDW-RTU-M2000-C/F-EN

Figure 7 - Input and Output Identification

Figure 8 - RJ45 Pinout

Bottom Row:
Common for all inputs
Static pressure (0-5 / 1-5V) (1 / 1.5 / 2 / 2.5 in)
CO2 sensor (4-20 mA)
External dry contact for proof of fan
Zone temperature setpoint (0-10K potentiometer)
Zone temperature sensor (10K thermistor)
Mixed air temp (10K therm) / Dry contact for clogged filter /
Dry contact for schedule override /
Auxiliary Temp Input (10K thermistor)
Supply air temperature sensor (10K thermistor)
Return air temperature sensor (10K thermistor)
Outside air temperature sensor (10K thermistor)
RTU RTUS
Outgoing network NET Port: ProLon Digital
communication Temperature Sensor
(to zones) - OR -
Incoming RS485 Network
Communication (Modbus)
Controller's power source
Unit's R&C terminal (24VAC)
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