PXI matrix modules increase switching density says Pickering

Delivering up to 6,144 crosspoints, the 40-558 0.5A high-density PXI matrix module family from Pickering Interfaces has a switching density 39 per cent higher than competing devices, says the company.

The 40-558 allows a complete functional ATE system to be housed in a single 3U PXI chassis. The integrated BRIC design saves chassis slots compared to standard PXI matrix modules, adds Pickering.

The 40-558 modules are available in two, four or eight-slot widths for matrix sizes between 64 x 16 and 1,008 x 6. The modules are fitted with ruthenium-sputtered reed relays (manufactured by sister company, Pickering Electronics). These provide a long life with good low-level switching performance and excellent contact resistance stability. Automatic isolation relay switching maximises bandwidth and reliability. Spare relays are included with the module to facilitate easy maintenance with minimum downtime.

The BRIC’s internal high performance screened analogue backplane simplifies complexity and reduces the cost of cable assemblies. The company has a range of standard cables available for the 40-558 and can construct custom cables for all its PXI modules. A choice of six, eight, 12 and 16-pole analogue bus widths and dual analogue bus options are available.

Keith Moor, CEO, says: “This is [the] industry’s highest density reed relay PXI solution. . . . we are able to guarantee our matrices for three years. Engineers can be sure they are choosing a high reliability product to match their high reliability applications,” he added.

The 40-558 BRIC PXI matrix modules can be operated in Fast mode via the VISA driver with multiple relay operation in one command or provide the convenience and simplicity of IVI drivers.

Accessory support includes Pickering’s built-in relay self-test (BIRST) and eBIRST switching system test tools which provide a quick and simple way of finding relay failures within the modules. There is also Pickering’s signal routing software, Switch Path Manager, for programming the BRIC matrix modules.

Typical applications for the 40-558 PXI matrix modules include automotive and aerospace electronic control units (ECUs) and semiconductor package testing. Dual analogue busing for the narrower matrix options enables completely separate matrices within a single module for parallel testing, adds the company.


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