Astronics / EADS / Racal CP290 1000W Power Supply for 1261B (P/N: 407377)

The CP290 is a 1000 W power supply module engineered for the Astronics/EADS/Racal 1261B VXI mainframe. This pluggable assembly connects directly to the mainframe backplane, delivering stable, efficient power with minimal ripple and noise. Designed to support high dynamic current output, the CP290 enables crisp waveforms and accurate measurements across demanding test applications. The unit operates across dual input voltage ranges - 115 Vrms ±10% or 230 Vrms - at 47 Hz to 63 Hz line frequency, with total available system power of 760 W. Three fused, self-healing auxiliary outputs provide regulated DC: +5 V @ 1 A, +12 V @ 1 A, and +24 V @ 1 A. The 1261B mainframe incorporates a fault-tolerant cooling architecture with independently pluggable fan and power supply modules, reducing acoustic noise to 56 dBA at low fan speed and enabling hot-swappable maintenance. Temperature range spans 0 °C to +55 °C operating and up to 40,000 ft non-operating altitude. Full VXIbus 1.4 compliance and VXIplug&play compatibility ensure seamless integration with modular instrumentation ecosystems.

Technical Specifications

Model: CP290 (CP290-01)

Part Number: 407377

Power Output: 1000 W

Total Available System Power: 760 W

Input Voltage: 115 Vrms ±10% or 230 Vrms

Input Frequency: 47 Hz to 63 Hz

Auxiliary DC Outputs (fused, self-healing): +5 V @ 1 A, +12 V @ 1 A, +24 V @ 1 A

Operating Temperature: 0 °C to +55 °C

Relative Humidity: Up to 95% at 30 °C rise; up to 45% at 55 °C

Operating Altitude: 5,000 ft (4,570 m)

Non-Operating Altitude: 40,000 ft (12,190 m)

Acoustic Noise: 56 dBA (fan speed control set to low)

Key Features

Direct backplane integration with pluggable form factor

High dynamic current for accurate waveform generation

Low ripple and noise performance

Fault-tolerant cooling system with independently pluggable fan assemblies

Fused, self-healing auxiliary DC outputs

Integrated system monitoring: voltage, current, airflow, and temperature status

Typical Applications

modular test and measurement systems

VXI-based instrumentation racks

Automated test equipment (ATE) requiring stable, low-noise power distribution

Compatibility & Integration

Primary System: Astronics/EADS/Racal 1261B 13-Slot VXI Mainframe

VXIbus Specification: 1.4 compliant

VXIplug&play: Compatible

Modular Design: Hot-swappable, independently pluggable assembly