The NI SCXI-1167 is a 64-channel external relay driver module engineered for the SCXI platform. It provides high-density switching control for external relays and inductive loads, delivering drive capacity up to 50 V and 600 mA per channel when powered by an external supply. The module supports 64 single-side stable relays or 32 2-coil latching relays, making it suitable for automated test systems and industrial control applications where relay requirements exceed standard module capabilities.
– Technical Specifications
• Channel Count: 64 channels
• Relay Configuration: Up to 64 single-side stable relays or 32 2-coil latching relays
• Maximum Voltage: 50 V per channel
• Maximum Current: 600 mA per channel (external power supply required)
• Drive Capability: Small DC motors and inductive relay coils
• Physical Dimensions: 1.2 in. × 6.8 in. × 7.8 in.
– Key Features
• Overvoltage and overcurrent protection for extended module life
• Flyback diode protection against inductive load transients
• Auto channel reset following protection events
• Auto scanning function supporting lists of up to 32,000 connections for autotest applications
• Trigger functionality for uninterrupted measurement operation
– Typical Applications
• Automated test systems requiring external relay control
• Industrial control and switching applications
• Data acquisition systems with high-channel-count relay requirements
• Test setups where relay coil specifications exceed standard module ratings
– Compatibility & Integration
The SCXI-1167 integrates into SCXI chassis via the SCXI backplane interface. The NI-SWITCH driver provides IVI-compliant software control and full compatibility with LabVIEW. Module is announced obsolete but may remain available through third-party distributors.
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