The RACAL DANA 1250 / 04/71 Universal Switch Controller Card, Option 55A, is a plug-in module for the Racal-Dana 1250 Series chassis that enables automated signal routing and switching across DC to 26.5 GHz. This controller card integrates into modular chassis architectures to support low-level, power, RF, and microwave switching applications in both manual and automatic test environments. Option 55A extends the capabilities of the base 1250 system through intelligent switching control and expansion functionality.
Technical Specifications
• Frequency Range: DC to 26.5 GHz
• Form Factor: Card module for 1250 Series chassis installation
• Control Interfaces: Local control via intelligent front panel (Option 90); remote control via GPIB (IEEE-488)
• Chassis Compatibility: Operates within Racal-Dana 1250-5 Slot and 1251-14 Slot chassis configurations
• Power Switching Capability: Handles low-level, power, RF, and microwave signal switching
– Key Features
• Modular architecture supporting multiple intelligent switch modules
• GPIB integration for automated test system control
• Dual control modes for laboratory and production environments
• Compatible with related relay driver modules utilizing DB25 connectors
– Typical Applications
• Automated RF and microwave test systems
• Signal routing in production test environments
• Low-level and power switching in mixed-signal applications
• Multi-frequency test configurations from DC through microwave bands
– Compatibility & Integration
The 1250 / 04/71 card requires installation within a Racal-Dana 1250 or 1251 Series chassis. It operates in conjunction with related switch modules and driver cards available for the system. GPIB connectivity enables integration into larger automated test architectures. Proper grounding of the instrument and connected devices is essential due to hazardous voltages present in the equipment.
