Remote Load Unit (RLU) modellarger view
Remote Load Unit block diagram
This 3U ProtoBox solution in standard 19" rack-mount configuration integrates into any test system through its GPIB control interface, simple 12VDC power requirement, and up to four high-density ZIF (Zero Insertion Force) connectors. The Remote Load Unit (RLU) improves test performance and cost by moving both switching functions and loads closer to the DUT, minimizing the parasitic effects that often come with long and expensive cables from the DUT fixture.
Available in depths up to 30", the RLU carries up to 128 relays with contact ratings from 1A to 40A in groups of eight, including current sense functionality in configurable ranges from 5A to 36A. Even so, there's plenty of room to accommodate a flexible workspace for product-specific circuitry.
The RLU can be custom-configured with literally thousands of different combinations of low, medium and high-power loads, able to be switched and their status read back in banks or individually by means of simple GPIB commands. Each individual relay channel has an LED which illuminates when the channel is active to facilitate troubleshooting and allow instant visual confirmation of the status of every relay in the box.