National Instruments OAC5, OAC5A, ODC5 manual

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371174A-01
©
Copyright 1990, 1998 National Instruments Corp. All rights reserved.September 1998
USER GUIDE
SSR SERIES MODULES AND BACKPLANES
This guide describes the mechanical and electrical aspects of the solid state
relay (SSR) Series modules and backplanes. It also describes how to install
and configure them for use with National Instruments data acquisition
(DAQ) devices. The SSR Series consists of the following digital signal
conditioning modules and backplanes:
• Output modules
– OAC5
– OAC5A
– ODC5
• Input modules
–IAC5
–IAC5A
–IDC5
• Backplanes
– 8-module
– 16-module
– 24-module
– 32-module
Introduction
You can use the SSR Series digital signal conditioning modules with your
PC and National Instruments DAQ devices to control or sense voltages
from field devices. The SSR modules are high-performance, fully
encapsulated devices that interface the PC to field devices via optical
isolation. These modules plug into one of the SSR backplanes, which are
available with 8-, 16-, 24-, and 32-module capacities. Each backplane has
screw terminals for field connections. A 50-pin connector connects the
backplane to the DAQ device. The backplanes also have light emitting
diodes (LEDs) that indicate the status of each SSR module.