Hardware reference guide

Quantum Configurations
36
35013379 02 October 2007
Dual Cable RIO
Configuration
The following figure is an example of a dual cable Quantum RIO configuration.
Hot Standby
System
The Quantum Hot Standby system is designed for use with remote I/O networks. A
Quantum Hot Standby system may be set-up using single or dual cable
configurations (refer to the following two figures).
Note: The dual cable option is provided for systems that require added protection
against cable breaks or damaged connectors. With two cables connected between
the host and each node, no single cable break will disrupt communications.
I/OI/OI/O
RIO
Head
CPU
PS
I/OI/OI/OI/OPS I/OI/OI/OPS
Local I/O
Drop
*RIO Tap and
Terminator (#52-0422-000)
Up to 31 Drops
B800 Series
*RIO
Tap
RIO
Drop
RIO
Drop
RIO Drop # m RIO Drop # n
P81 J890
*RIO
*RIO
Tap
*RIO Tap and
Terminator
*RIO Tap
*An RIO tap (# MA-0185-100) is required for every RIO drop in the system.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com