Installation guide

Planning and Designing RIO Cable System

890 USE 101 00 October 2006

Redundant Hot

Standby Cable

Systems

Using redundant cabling in a Hot Standby system creates a very powerful system

with backup both at the controller head-end and along the RIO network. This

topology requires the use of RIO head processors and drop adapters with two RIO

cable ports, and it requires the use of two splitters.

P/S PLC RIO

HSBY

I/O I/O P/S PLC RIO

HSBY

I/O I/O

P/S RIO I/O I/O I/O

STFAs STFAs

HSBY Fiber Interconnect Cable

Trunk Cable A

Trunk Cable B

First RIO Drop on A

Last RIO Drop on A

First RIO Drop on B

Last RIO Drop on B

Trunk Terminator

Primary PLC Standby PLC

Splitter

Tap

This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com