CH Tech M222 user manual General Description

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C&H Technologies, Inc. <> 445 Round Rock West Drive <> Round Rock, TX 78681 <> www.chtech.com

1.0 GENERAL DESCRIPTION

The M222 provides 4 individual Form C (SPDT) channels for general purpose switching and control of external devices on a single wide M-Module adhering to the ANSI/VITA 12-1996 specification for M-Modules. With its 5 ADC per channel current rating, it can be used to switch external power supplies. The module may be installed on any carrier board supporting the M- Module specification. Carriers are available that allow the module to be used in Ethernet (LXI), VXI, VME, PCI, cPCI, PXI and other system architectures.

1.1 PURPOSE OF EQUIPMENT

The M222 can connect multiple instruments to multiple points in your test system. This provides flexible interconnection between test points, instrumentation, factory automation, and test fixtures.

CAUTION: This module DOES NOT have provisions for on-board current limiting components (if input current can exceed 5A DC or 5A AC, you must install external current limiting circuitry)

1.2 SPECIFICATIONS OF EQUIPMENT

1.2.1 Key Features

∙Four (4) Individual Form C (SPDT) Power Relays

∙Non-latching Relays

∙Single-wide M module provides high density and maximum flexibility of configuration

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Contents D E L Copyright 2007 by C&H Technologies, Inc CopyrightAmendment Notice Introduction Table of Contents List of Tables List of FiguresGeneral Description Maximum Ratings DMA Page Module Installation InstallationPreparation for Reshipment Functional Description Switching SchematicOffset Hex Register Name Register Type Table II. I/O Address Map/Command SummaryRelay StatusControl InterruptVXI ID Table III. M/MA Module Prom Ident WordsEffects of Opening/Closing Relay OperationPage Figure A-1. Front Panel I/O Signals Appendix a ConnectorsPage T E S Page Comments Readers Comment FormInstructions
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