0 general description, 1 purpose of equipment, 2 specifications of equipment – C&H Technologies M222 User Manual
Page 7: 1 key features

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