Tektronix VX4380 256-Crosspoint Relay Matrix Module

The Tektronix VX4380 is a single-slot, C-size VXI relay matrix module delivering high-density signal routing for automated test equipment (ATE) systems. Built on four 4×16 two-wire matrix sections, it supports expandable configurations up to 16×16 or 4×64 two-wire matrices, enabling flexible signal path creation for data acquisition, distribution, and complex switching applications.

– Technical Specifications

Module Architecture
• Form factor: Single-slot C-size VXI module (VXI Revision 1.4)
• Message-based interface with Manufacturer ID BFFDH and Device ID F683H
• Front panel: Two 160-pin DIN connectors
• Weight: 4.2 lbs

Relay Matrix Configuration
• Core: Four 4×16 two-wire sections, independently configurable
• Expandable to 16×16 two-wire matrix (>15 MHz bandwidth at –3 dB)
• Expandable to 4×64 two-wire matrix (>15 MHz bandwidth at –3 dB)
• Option 01 enables cascaded control of up to 11 additional Tektronix relay modules
• Latching relays for low-power, low-noise operation

Electrical Ratings (per contact)
• Maximum switching current: 2 A
• Maximum switching voltage: 220 VDC or 250 VAC
• Maximum switching power: 60 W
• Maximum switching VA: 125 VA
• Input: 250 VRMS, 220 VDC, 60 W max, 125 VA max, 2 A max
• Power dissipation: 19.66 W (+5 V at 2.75 A)
• Cooling requirement: 0.05 mm H₂O at 1.57 L/s for 10°C rise

Environmental
• Operating ambient temperature: 0–50°C

– Key Features

• High-density 256-crosspoint architecture in compact single-slot form factor
• Multiple matrix topologies—select 16×16 or 4×64 without hardware changes
• Latching relay technology minimizes power consumption and thermal load
• Bandwidth exceeds 15 MHz (–3 dB) across all standard configurations
• Cascadable architecture via Option 01 for systems requiring multi-module expansion

– Typical Applications

• Complex signal switching in automated test benches
• Multi-channel data acquisition routing
• High-voltage and high-current switching matrices
• Distributed test point selection in production ATE

– Compatibility & Integration

Fully compatible with VXI mainframes from Agilent, Tektronix, VXI Technology, Racal, and National Instruments. Hardware Revision 671-3287-01.