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Concept
Products:
RP-C
Functionalities:
Hardware
Product version:
3.2, 3.3
2/17/2021
RJ45 Pinout for the RS-485 Ports of the RP-C Controller
This section provides the RJ45 pinout for the RP-C controller's two RS-485 ports.
The RS-485 ports are labelled Sensor Bus (RS-485 Com A) and Room Bus (RS-485 Com B). For more information, see RP-C Communication Ports . The RJ45 pinout is identical for the two RS-485 ports.
Figure:
RJ45 pinout for the RP-C controller RS-485 ports
|
RJ45 Pin |
Description |
|
1 |
Not connected |
|
2 |
Not connected |
|
3 |
RS485+ (A) |
|
4 |
+24 VDC |
|
5 |
Ground |
|
6 |
RS485– (B) |
|
7 |
+24 VDC |
|
8 |
Ground |
The wiring recommendations for the RS-485 ports depend on the type of network the ports are used for. For more information, see Communication Port Wiring .
Wiring
Communication Port Wiring
RP-C Communication Ports
RP-C Sensor Bus
RP-C Room Bus
RP-C Modbus