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Concept Concept 2/17/2021
Products: RP-C
Functionalities: Hardware
Product version: 3.2, 3.3

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.

RJ45 pinout for the RP-C controller RS-485 ports

RJ45 pinout for the RP-C controller RS-485 ports

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 .

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