CM Computer CM-DI-40 64-Channel Optocoupled Input Module
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CM Computer CM-DI-40 64-Channel Optocoupled Input Module


  • 64 Optoisolated Input Channels
  • 3 to 300 VRMS AC/DC Input Range
  • Full Galvanic Isolation > 1000 V Per Channel
  • Overvoltage Input Protection Per Channel
  • Low Power CMOS Design (3 Watts)

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This CM Computer CM-DI-40 64-Channel Optocoupled Input Module is used and in excellent condition.

Stock # 71411-1

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  • Tech Specs
  • Datasheets / Manuals 
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The CM Computer CM-DI-40 is a general purpose 64 channel optocoupled input VMEbus board. This professional module offers an outstanding design which incorporates features most demanded in today’s first class military and industrial applications.

It incorporates specific Built-In-Test circuitry which allows testing all on board TTL chips. Wraparound loops disconnect external application signals and connect internal test signals in order to verify correct module operation.

The board implements a complete input voltage stage per channel, featuring overvoltage protection, galvanic isolation, rectifier & filter and easy configuration to accept a wide range of AC/DC voltage levels.

The CM-DI-40 offers a highly flexible I/O cabling solution using VME64x connectors on both front panel and P2. Both connectors have identical pin-outs.

Military versions, provided with conduction cooled thermal overlay, greatly improve capability to withstand shock and vibration.

The metallic layer in the PCB also benefits heat dissipation and allows all components to work within homogeneous temperatures, thus greatly increasing component longevity and module MTBF.

All CM-DI-40 versions are 100% compatible at the functional level, allowing software development to proceed with low cost Industrial versions.

Product Family: CM DI 40, CMDI40
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Manuals, Datasheets, Drivers, Links

CM Computer CM-DI-40 Datasheet (pdf) 
Link to CM Computer Website