Item 783
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CB53 4-Wire CB Board Conversion Set


A special connector motherboard that will convert a top-mounted standard 64-pin connector board test fixture into a 4-wire test fixture. Conversion is valid when the UUT connects directly into the standard board rather than via a flying lead or adapter cable and eliminates the need to otherwise create custom 4-Wire test fixtures. The CB53 requires a tester with 4‑wire measurement capability, a mating connector board, and an expansion module. As with any 4‑wire measurement, twice the number of test points is required than for standard 2‑wire measurement, therefore an expansion module is necessary. Connectors will appear graphically correct once they are mapped with PinMap™ optional software.

Note that this is a ‘Plug & Play’ interface, requiring NO additional 4-wire fixturing to operate.

1 Expansion Module Required: One (1). Tester must have 4-wire measurement capability.

2E Set of two boards with expansion cable.

Voltage Rating

Rated for operation up to 500 Vdc/ac.
Can be certified for operation at the maximum rated voltage for a service fee (Item 626).


Make 4-wire measurements from the signal entry point of any existing CAMI 2-wire 64-point board and closely approximate a true 4-wire test. These are the advantages: