Multiplexer Module for MIL testing

| Information and Communication Technology

Rack mounted PXIPXIe multiplexer module supports MIL-STD-1553 testing

PXI/PXIe multiplexer module with a differential bandwidth of 450MHz supports MIL-STD-1553 testing

A new PXI/PXIe multiplexer module optimised for MIL-STD-1553 testing applications has been released. With a differential bandwidth of 450 MHz—far exceeding the requirements of the standard, the module is available in single or dual 4:1, 8:1 or 16:1 differential configurations.

Using telecoms-grade electromechanical relays, the 40/42-739 multiplexer has a minimal initial signal path resistance of less than 450 mΩ. The module features impedance-controlled differential pairs with a single-ended characteristic impedance of 39 Ω and a differential impedance of 78 Ω, within the specified range of 70-85 Ω. Its compact, single-slot footprint with PXI or PXIe control interface provides flexibility in chassis selection and minimises chassis slot count.

According to Steve Edwards of supplier Pickering Interfaces, this standard was intended for use in military aircraft but is now used as the basis for ground-based military vehicles, weapons systems, commercial aircraft and space applications. “The 40/42-739 has many applications in aerospace and military systems, and can potentially support applications for 75 Ω switching such as for video signals,” he says.

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