Rockwell Automation Publication 2711R-UM001H-EN-E - April 2021
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Appendix D Cable Connections and Communication
The maximum cable length for serial communication is 15.24 m (50 ft) at
19.2 Kbps
RS-422/RS-485 Port
The RS-422/RS-485 port is an isolated port that supports point-to-point
communication.
The RS422/485 port has integrated 120 ohm termination between the R and R-
signal pair. This value is compatible with RS422 and RS-485 electrical
specifications. Additional termination on the PanelView 800 terminal end of
communication cables is not required.
RS-422/RS-485 Connector Pinout
Pin
Signal
1
T
2
T–
3
R
4
R–
5 S
(Shield)
