Pickering Interfaces has launched the 65-217, a modular 2A Ethernet-controlled LXI matrix that scales from a single 64×8 element to a 384×8 configuration inside a 19-inch, 2U chassis. The Clacton-on-Sea-based company designed the plug-in for its 65-200 scalable LXI chassis platform, letting test engineers add switching capacity as requirements grow rather than buying a fully populated system up front.

Each 65-217 module contributes a 64×8, 1-pole matrix. Up to six modules fit in one 65-200 chassis, and the resulting hardware behaves as a single matrix rather than six separate 64×8 blocks. The control software handles path identification offsets between modules automatically, which Pickering says cuts programming complexity for integrators.

"The 65-217 gives users a practical way to start with the matrix size they need today and expand it later," said Steve Edwards, Head of Product Management at Pickering. "Up to six plug-in modules can be installed in a 65-200 chassis, creating a single matrix rather than separate 64×8 elements. The control software handles the path identification offsets between modules, reducing programming complexity."

The architecture targets a specific measurement problem in aerospace and automotive test: RF crosstalk measurements on unterminated signal paths. The module supports this requirement directly, according to the company.

Serviceability drove several design choices. Modules install from the front panel, so technicians can add or replace them without pulling the chassis out of the rack. Spare relays mount on each plug-in to simplify servicing and reduce downtime. Relay cycle counting helps test teams schedule preventive maintenance and balance usage across signal paths before individual paths wear out.

Two self-test mechanisms cover relay diagnostics. Integrated BIRST (Built-In Relay Self-Test) runs on board, and the optional external eBIRST toolset can identify failed or worn relays. Together with the cycle counters, these features give engineers visibility into switching health across a system that may run millions of operations in production test.

On expansion, Pickering offers versions with or without front-panel Y-axis access. Switched Y-axis loop-thru connections allow matrix expansion across multiple chassis, so a system can outgrow a single 2U enclosure without redesigning the signal routing.

A dual Y-axis analogue bus adds routing flexibility. Multiple external instruments can access different portions of the matrix simultaneously, or the bus can split the system into two independent matrices operating in parallel. Switched Y-axis points let users disconnect unused sections entirely, which maximizes bandwidth on the active paths — a trade-off that matters in crosstalk-sensitive measurements.

Electrical limits are 300 VDC or 250 VAC at up to 2 A per path, with a maximum power rating of 60 W or 62.5 VA. That rating places the 65-217 in the mid-power switching class, suited to signal routing rather than power distribution.

For test departments facing changing requirements — expanding instrument counts, evolving device under test portfolios, or phased program rollouts — the module's incremental scaling model converts a large capital purchase into staged investment, with front-panel servicing and on-board relay diagnostics keeping racks running through each expansion phase.