National Instruments PXI-2533

The National Instruments PXI-2533 (Part Number: 778572-33) is a reliable 1-Wire, 256-Crosspoint PXI Matrix Switch Module that features solid-state relays (SSRs). Unlike traditional electromechanical relays, the SSRs provide an unlimited mechanical lifetime, ensuring long-lasting performance. The PXI-2533 operates with maximum switching specifications of ±55 VDC and 30 VACrms for voltage, 55 W for power, and 1 A for current. It boasts a typical DC isolation resistance of >2 GΩ, along with a total row-to-column path resistance of 1 Ω and a typical crosspoint bandwidth of >1.5 MHz in a one-row-to-one-column, 50 Ω system. The module achieves a scanning rate of 400 crosspoints per second at 1 Ampere and voltages below 20 V, while simultaneously managing up to 256 relay drives. Triggering capabilities are supported through PXI trigger lines 0 to 7 with a minimum pulse width of 70 ns and programmable output triggers between 1 µs to 62 µs. This switch module connects via a 68-pin male SCSI type connector and operates with a power consumption of 8 W at 5 V and 1 W at 3.3 V under typical conditions. Designed as a 3U form factor, the PXI-2533 measures 21.6 × 2.0 × 13.0 cm and can be configured in a versatile 1-wire, 4 × 64 matrix topology. For further information, a user manual and maintenance documentation are available for download, and pricing details can be obtained by contacting a sales representative.