Astronics / EADS / Racal 1461-14 14-Slot PXI Mainframe

The Astronics/EADS/Racal 1461-14 is a 14-slot 3U PXI mainframe engineered for high-performance modular instrumentation, data acquisition, and control systems. This compact chassis integrates 3U PXI, 3U CompactPCI, and 111.7 mm mezzanine modules into a single platform, delivering 526 W of distributed power across all slots. The system features dual 112 CFM high-pressure impellers with three selectable cooling modes—automatic high/low speed, manual selection, or temperature-proportional variation—ensuring uniform thermal management for high-power module applications. A universal AC input power supply with automatic voltage and frequency ranging (including 440 Hz capability) pairs with built-in monitoring of power and fan status. Front-panel LED indicators flag power supply failures, while rear-panel connectors enable remote power and fan monitoring. The chassis ships with a carrying handle for portability and tilt feet for benchtop use, with optional rack-mount rails available.

## Technical Specifications

• **Slot Configuration:** 14 slots total with dedicated system controller slot
• **Module Compatibility:** 3U PXI, 3U CompactPCI, and 111.7 mm mezzanine modules
• **Power Output:** 526 W distributed across 14 slots
• **AC Mains Input:** 120 VAC standard (universal ranging available)
• **Cooling System:** Dual 112 CFM impellers with rear intake, top/side exhaust; three operational modes (automatic high/low, manual, or temperature-variable)
• **Power Supply:** Built-in modular assembly with universal AC input, automatic voltage/frequency ranging, and 440 Hz capability
• **Monitoring:** Built-in power supply and fan monitoring with remote connectivity via rear-panel connector

## Key Features

• Removable modular power-supply/fan assembly for serviceability
• Front-panel LED power supply failure indicator
• Forced-air cooling optimized for uniform thermal distribution
• Compact 3U benchtop or rack-mount form factor

## Compatibility & Integration

Fully compliant with PXIbus Specification Revision 2.1 and earlier versions. Backplane interoperability with standard CompactPCI products; P1 connector signals meet CompactPCI specification requirements, while PXI-specific signals reside on the P2 connector.