New PXI/PXIe multiplexer module supports MIL-STD-1553 testing

With a differential bandwidth of 450MHz – far exceeding the requirements of MIL-STD-1553 – model 40/42-739 is available in single or dual 4:1, 8:1 or 16:1 differential configurations. 

Using telecommunications-grade electromechanical relays, the 40/42-739 multiplexer has a minimal initial signal path resistance of less
than 450 m?. The module features impedance-controlled differential pairs with a single-ended characteristic impedance of 39 ? and a differential impedance of 78 ?, within the MIL-STD-1553-specified range of 70-85 ?. Its compact, single-slot footprint with PXI or PXIe control interface provides flexibility in chassis
selection and minimises chassis slot count.

Comments Pickering’s Switching Product Manager, Steve Edwards: “Originally introduced in the 1970s, MIL-STD-1553 was intended for use in military aircraft. However, now it is used as the basis for ground-based military vehicles, weapons systems, commercial aircraft and space
applications. The 40/42-739 should have many applications in aerospace and military ATE systems, and – being designed with a 78 ? differential impedance – he 40/42-739 can potentially support applications for 75 ? switching such as for video signals.”

The 40/42-739 PXI/PXIe multiplexer module is
supported by the Pickering Interfaces’ eBIRST diagnostic tool for ease of maintenance and fault-finding. The inclusion of a spare relay enables customers with applicable SMT rework training to effect on-site repair, minimising system downtime. Pickering also offers a range of standard and custom interconnect accessories supporting the 40/42-739 family.