The Ametek / VTI Instruments CT-400 is a 13-slot C-size VXIbus mainframe designed for high-performance test and measurement systems in aerospace, defense, and telecommunications applications. This modular platform delivers over 1100 W of usable power and features a pressurized plenum cooling architecture with variable fan speed control. The 10-layer stripline backplane provides low-noise, low-resistance power distribution with automatic Bus Grant and IACK jumpering, while comprehensive monitoring outputs track system health across temperature, voltage, current, and fan status.
Technical Specifications
• Slot Configuration: 13 slots, C-size VXIbus
• Power Output: Over 1100 W usable power
• Power Supply Protection: UL, CSA, TUV approved; short circuit, over-voltage, reverse voltage, and thermal shutdown protection
• External Power Lines: Seven DC supply lines on rear panel, each protected to 1 A with self-healing fuses
• Cooling: Variable fan speed (low, high, or automatic); automatic adjustment based on power usage and ambient temperature
• Backplane: 10-layer stripline construction; custom power sub-panel; low AC noise and optimized power distribution
• Monitoring Outputs: Over-temperature, over-voltage, over-current, ambient >55 °C, and fan-speed drop interrupts; main fault interrupt (logical OR); tachometer outputs
• Front Panel Indicators: Voltage status LEDs (green = within limits, red = over-voltage, unlit = under-voltage)
• Trigger Lines: All eight TTL trigger lines available on rear panel
• System Controls: Remote power-off input and fault output signal on rear panel
– Key Features
• Pressurized plenum system with optimized baffling for high-power applications
• Automatic active Bus Grant and IACK jumpering eliminates manual configuration
• Optional backplane and inter-module shields for enhanced EMI/RFI performance
• Traditional instrument rack airflow conventions for integration into standard facilities
• User-accessible monitoring system on rear panel for real-time health status
– Typical Applications
• Aerospace and defense system integration
• Telecommunications test platforms
• Modular instrumentation requiring high power density
• Multi-module measurement systems with external device control
– Compatibility & Integration
Full VXIbus C-size module compatibility. All trigger and control signals extend to rear connectors for system-level integration with external instrumentation and automation controllers.
