The Astronics/EADS/Racal 1260-100 is a C-size VXIbus switch carrier that accommodates up to six Adapt-a-Switch™ plug-in switch cards for dense, modular switching configurations in automated test equipment and data acquisition systems. The two-slot module features front-loading access for simplified field upgrades and maintenance, with an integrated analog bus enabling dynamic software-controlled multiplexer and matrix configurations. EMI/RFI shielding between plug-in slots ensures signal integrity and crosstalk elimination.
## Technical Specifications
**Form Factor & Capacity**
• C-size, two-slot VXIbus module
• Accommodates up to six Adapt-a-Switch™ plug-in switch cards
• Weight (empty): 4.4 lbs (2.0 kg)
**Environmental Performance**
• Operating temperature: 0°C to +55°C
• Operating altitude: 10,000 ft
• Relative humidity: 95% ±5% non-condensing at 30°C
• Vibration: 0.013 in (pk-pk), 5 to 55 Hz
• Shock: 30 G, 11 ms, ½ sine wave
• Bench handling: 4-inch drop at 45°
**Thermal & Performance**
• Worst-case airflow requirement: 3.0 l/s
• Backpressure: 0.7 mm H₂O
• Switching response time (register-based): 9 µs maximum
## Key Features
• Individual plug-in sparing minimizes system support costs
• EMI/RFI shielded slots eliminate crosstalk and radiation
• VXIplug&play support for Microsoft Win32 frameworks
• Drivers available for LabWindows/CVI and LabVIEW
• Compatible with Racal Instruments™ Option 01T control interface
## Typical Applications
• Automated test equipment (ATE) with modular switching requirements
• Data acquisition systems requiring dynamic relay configuration
• Large-scale multiplexing and matrix switching operations
• Field-upgradeable test systems with minimal downtime
## Compatibility & Integration
The 1260-100 integrates with the VXIbus backplane and supports Ethernet, GPIB, or RS-232 control when equipped with the Option 01T interface. The Option 01T manages up to twelve Adapt-a-Switch™ plug-in cards and supports both register-based and message-based control modes using SCPI and IEEE-488.2 commands. One Option 01T is recommended for every two 1260-100 carrier modules.
