70-0409-136R

SMX-3276DS is a PXIe high-density multiplexer modules designed for scanning of multiple points to a common bus, in 1, 2, or 4-wire configurations. The SMX-3276DS consists of two individual (1 x 76) 1-wire, or two (1x38) 2-wire multiplexers or one 1x76 2-wire mux, that can be interconnected under program control (via bussing relays) to configure larger multiplexers as required. This eliminates external wiring and helps reduce unterminated stubs. In contrast to the SMX-3276DS has internal residual voltage discharge relays that can be enabled to momentarily short out the measurement path when changing from one input channel to the next. This dissipates any voltage held by the wiring and instrument input capacitance. These relays protect sensitive devices, such as CMOS circuits, from residual voltages caused by previous high-voltage measurements. This feature can also be disabled in low-voltage applications where maximum throughput speed is important.

• (2) 1x38, 2-wire fully configurable multiplexer
• Maximum switching voltage of 300VDC, 300VAC
• 2A maximum switching current
• 60W DC, 62.5VA maximum switching power
• <lt/> 8ms switching time
• <lt/> 500mohm path resistance
• Electromechanical, fail-safe relay

Notes

In addition, we have calibration services for this product (Europe Only). Visit our calibration service page to see details of what options are available.