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Mass interconnect
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Mass interconnect systems act as the connector interface between test instruments (PXI, VXI, LXI, GPIB, SCXI, & PCI) and devices/units under test (D/UUT) and are most often used in defense, aerospace, automotive, manufacturing, and other applications. By mating a receiver on the tester side with an interchangeable test adapter (ITA) on the UUT, a mass interconnect enables the entire system to mate together at one time. Mass interconnect systems are available in multiple sizes and configurations to accommodate virtually any testing requirement.
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Companies that manufacture mass interconnects include VPC and MAC Panel Company.

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System definitions
- Instrumentation: PXI, VXI, LXI, GPIB, SCXI, and PCI Electronic equipment that generates or analyzes I/O.
- Cable Assemblies and Receiver Patchcords: Modules connect to the instrument-specific connector(s) and are also available in PCB adapter configurations that accept COTS (commercial off-the-shelf) cable assemblies. Receiver patchcords allow discrete wiring.
- Receiver: A rugged interconnect mechanism to house connector modules, patchcords, cable assemblies, and PCB adapters for connection to test instrumentation. Mates with the ITA frame or connectors.
- Receiver Modules: Present multiple configurations of signal, power, RF/coaxial, pneumatic, vacuum, thermocouple, or fiber optic in varying densities.
- Pull thru adapters or Direct Access Kits (DAKs): Modular units that connect the instrument card to the Mass interconnect receiver module in a single removable unit usually using a PCB to eliminate crosstalk issues and reduce signal interference.
- Interchangeable Test Adapter (ITA): Mates to the receiver and houses modules, PCB adapters, cable assemblies, and patchcords for connection to the UUT.
- ITA Modules: Connect to the Receiver modules in the corresponding configurations and is the final connection before engaging the test instrument to the UUT.
- ITA Patchcords: Supply the user a contact with pre-terminated wire in a single or double-ended format to connect the ITA to the UUT in a customized arrangement.
- ITA Enclosures: Protect and provide strain relief for wiring. Enclosures offer a mounting surface for UUT accessories such as edge-card adapters and other connectors.
- D/UUT: Device under test or unit under test – The object undergoing the test
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References
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