The National Instruments SCXI-1160 is a 16-channel general-purpose switching module built around electromechanical latching relays in SPDT (Form C) configuration. Housed in a single SCXI chassis slot, it routes and switches medium-level signals via 250 Vrms contact-to-coil isolation and low thermal offset. Control occurs through serial communication over the SCXIbus by a connected DAQ device or switch controller.
Technical Specifications
• Relay Configuration: 16 × SPDT (Form C) latching relays
• Switching Capacity: 2 A at 250 Vrms AC; 2 A at 30 VDC
• Maximum Switching Power: 60 W
• Contact-to-Coil Isolation: 250 Vrms
• Initial Contact Resistance: < 75 mΩ (typical)
• Thermal EMF: ≈ 3 µV
• Relay Operating Time: ≈ 10 ms
• Scan Rate: Up to 50 operations/sec
• Bandwidth: 1 MHz
• Voltage Category: CAT II
• Dimensions: 7.8 in. × 1.2 in. × 6.7 in. (1 chassis slot)
• Front Connector: 48-pin DIN C male
• Rear Connector: 50-pin ribbon header
– Key Features
• Each relay channel includes normally closed (NC), normally open (NO), and common (COM) terminals for flexible signal routing
• Low on-resistance and minimal thermal offset preserve signal integrity across switching operations
• Latching relay design eliminates continuous coil power consumption
• Parallel operation with SCXI-1160 or SCXI-1161 modules in the same chassis
– Typical Applications
Signal routing and switching in automated test systems, data acquisition setups, and industrial control environments where medium-voltage AC and DC switching is required.
– Compatibility & Integration
Integrates with National Instruments SCXI chassis systems and is controlled via the SCXIbus. Compatible with NI MIO-16, Lab-NB, Lab-PC, Lab-PC+, Lab-LC, PC-LPM-16, DIO-24, DIO-32F, DIO-96 boards, NI 4021 switch controller, and NI 4070/4060 DMMs. Supports NI-SWITCH driver, NI-DAQmx driver, LabVIEW, and LabWindows/CVI. Optional SCXI-1324 Terminal Block accessory available. UL, CE, CAN/CSA, IEC, C-Tick, and FCC Part 15 certified.
