Cabling Diagrams for Multi-drop Configurations

The following diagrams illustrate multi-drop configurations using the RS-232/RS-422 Converter (IC690ACC900) or the RS-422/RS-232 Isolated Repeater/Converter (IC655CCM590)

Diagram

Converter

Last Station:

Cables

I

IC690ACC900

Series 90 RS-485 CPU port
(not IC697CPU771 or IC697CPU731)

A or B, K

J

IC690ACC900

Series 90 RS-485 CPU port (IC697CPU771 or IC697CPU731

A or B, L

K

IC690ACC900

Series 90 RS-485 CMM port

A or B, M

L

IC655CCM590

Series 90 RS-485 CPU port
(not IC697CPU771 or IC697CPU731)

A or B, N

M

IC655CCM590

Series 90 RS-485 CPU port (IC697CPU771 or IC697CPU731)

A or B, O

N

IC655CCM590

Series 90 RS-485 CMM port

A or B, P

More information

SNP and SNPX hardware installation (external).