Tektronix VX4350 General Purpose Relay Switching Module

The Tektronix VX4350 is a single-slot C-size VXI relay switching module that provides 64 independent SPDT latching relays for signal routing and connection management in automated test systems. Each relay contact handles up to 2 A maximum switching current at voltages up to 220 VDC or 250 VAC per module. Latching relay technology minimizes backplane power consumption while maintaining independent control of all 64 relay channels. The module integrates into VXIbus mainframes via the VXI Local Bus and requires a VXI Interface and Slave Control daughter board (Option 01) for operation. Full SCPI and IEEE-488.2 command support enables straightforward integration into test automation environments. Part of the SurePath™ family of VXI switching products, the VX4350 delivers the channel density and reliability required for multi-signal switching applications across diverse test scenarios.

– Technical Specifications

• Relay Configuration: 64 × SPDT (Single Pole, Double Throw) latching relays
• Maximum Switching Current: 2 A per contact
• Maximum Switching Voltage: 220 VDC / 250 VAC per module
• Contact Type: Form C (SPDT)
• Module Size: Single-slot C-size VXI format
• Control Interface: VXI Local Bus with slave control daughter board
• Programming: SCPI and IEEE-488.2 compliant

– Key Features

• Independent control of each relay channel
• Latching relay architecture reduces VXI backplane power draw
• Compatible with VXIplug&play standard software frameworks
• Single chassis slot occupancy for compact system integration
• Operates alongside other Tektronix relay modules in coordinated switching systems

– Typical Applications

• Multi-channel signal routing in ATE systems
• Test point connection and isolation management
• Power distribution and load switching in production test
• Mixed-signal test environments requiring independent relay control

– Compatibility & Integration

The VX4350 operates in any VXIbus mainframe supporting C-size modules. Integration requires a VXI Interface and Slave Control daughter board. The module works with other SurePath™ family switching modules under unified control architecture.