C&H M 2 2 0, User Manual

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1
1.0 GENERAL DESCRIPTION
The M220 provides two separate 8 to 1, two-wire multiplexers or you can move a jumper to
connect the common channels of each multiplexer together and create a single 16 to 1, two-wire
multiplexer on a single wide M-Module adhering to the ANSI/VITA 12-1996 specification for M-
Modules. The M220 may be installed on any carrier board supporting the M-Module
specification. Carriers are available that allow the M220 to be used in Ethernet, VXI, VME, PCI,
cPCI and other system architectures.
1.1
PURPOSE OF EQUIPMENT
The M220 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 uses latching relays that retain their last programmed
state whenever power is removed (closed relays will remain closed
until opened via your test program).
CAUTION: This module DOES NOT have provisions for on-board current
limiting components (if input current can exceed 2A DC or 2A
AC, you must install external current limiting circuitry)
1.2
SPECIFICATIONS OF EQUIPMENT
1.2.1
Key Features

16 Latching Relays

Connector Type: 44-pin D-Sub

Interrupts when requested relay movements have completed

Latching relays retain last programmed state

FIFO register structure allows fast system operation

Single-width M-Module provide high-density and maximum flexibility of configuration
C&H Technologies, Inc. <> 445 Round Rock West Drive <> Round Rock, Texas 78681 <> www.chtech.com