The Tektronix VX4351 is a 40-channel SPST switch module engineered for integration into VXIbus system mainframes. It delivers high-current switching up to 10 A per channel, eliminating the need for external relays in demanding automated test environments. Each of the 40 independent Form A relays operates independently and can be reconfigured as a 20-channel DPST layout. Built-in control signal verification circuitry monitors relay coil driver signals. The module occupies a single C-size VXIbus slot and connects via three 30-pin high-current front panel connectors.
Technical Specifications
• Channel Configuration: 40 independent SPST (Form A) relays; reconfigurable to 20-channel DPST
• Current Rating: 10 A maximum per channel
• Switching Voltage: 30 VDC maximum, 250 VAC maximum per contact
• Switching Power: 300 W (DC), 2500 VA (AC) maximum per contact
• Relay Type: Interchangeable socketed relays
• Form Factor: C-size VXIbus instrument module
• Front Panel Connectors: Three 30-pin high-current connectors
• Self-Test: Built-in BITE with power-on and on-command execution
– Key Features
• Individual relay control with independent addressing via logical address switches
• Control signal verification for each relay coil driver
• Interchangeable relay sockets for field serviceability
• VMEbus interrupt level selection for flexible system integration
• Indirect mainframe grounding through power cord connection
– Typical Applications
• Automotive test and validation systems
• Aerospace and defense automated test equipment
• High-current circuit switching and load control
• Multi-channel relay matrix applications requiring 10 A switching capacity
– Compatibility & Integration
• Compatible with C- or D-size VXIbus mainframes (slots other than slot 0)
• Acts as local bus slave in standard configuration
• Optional 01 configuration expands control to 11 additional Tektronix SurePath family relay modules via VXI P2 local bus
• Designed for use with Tektronix VX1410 Intelliframe and equivalent VXIbus mainframes
