Space-saving PXI multiplexer module monitors open channels

Saving both space and time, the model 40-619 PXI multiplexer module from Pickering Interfaces enables the test engineer to monitor the open status of any channel.

It performs in the same way as a typical single-pole, 2A 60W multiplexer but uses secondary relays to determine the multiplexer channel status. Every multiplexer channel has an additional monitor switch that allows the user to verify that multiplexer channels are open – using an external verification device –  before applying test signals. This prevents damage to the device-under-test from incorrect or unintentional signals.

The 40-619 is available in nine switching configurations from 16:1 to 128:1. It uses electromechanical (EMR) signal relays suitable for switching loads up to 2.0A at 250V AC/DC. The compact, single-slot footprint means it can be used for monitoring while occupying minimal chassis slot space.

“The 40-619 provides a high density, low-cost integrated monitoring solution, removing the need for complicated external wiring and additional test code, which is necessary if a similar topology were to be implemented using discrete switching,” explained Steve Edwards, product manager at Pickering. “The module is designed for signal routing in automated test equipment (ATE) and data acquisitions systems, targeting applications where confirmation of the channel status is required prior to test signal application,” he continued.

The modules are supported by Pickering’s eBIRST diagnostic test tool. The 40-619 monitored multiplexer modules carries a three-year warranty and is supplied with spare relays for on-site repairs by trained staff, to minimise system downtime.

Pickering also offers a range of both standard and custom interconnect accessories to support the 40-619 family.

Pickering Interfaces designs and manufactures modular signal switching and simulation for use in electronic test and verification. The company claims to offer the largest range of switching and simulation products in the industry for PXI, LXI, and PCI applications. It also supplies cable and connector solutions, diagnostic test tools, and application software and software drivers created by an in-house software team.

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