The Astronics/EADS/Racal 1260-112 is a high-density, 20-channel DPDT switch plug-in module engineered for high-speed differential signal switching within the Astronics Adapt-a-Switch ecosystem. It delivers flexible relay configurations—from twenty independent DPDTs to one 20PDT or any combination—with individual or grouped actuation via an “Include” feature for multi-line bus routing. Compatible with Racal Instruments 1260-100 and 1260-101 VXI Adapt-a-Switch carriers and the 1256 GPIB/Ethernet switching mainframe, this module integrates into test systems requiring bidirectional bus switching and versatile signal routing.
## Technical Specifications
**Switching Performance**
• Channels: 20 DPDT relays
• Bandwidth: 120 MHz (-3 dB)
• Switching time: 100,000 hours
• MTTR: <5 minutes
• Shock: 30 g, 11 ms, ½ sine wave
• Vibration: 0.013 in. (pk-pk), 5 to 55 Hz
• Bench handling: 4-inch drop at 45°
**Environmental**
• Operating temperature: 0°C to 55°C
• Relative humidity: 85% ±5% non-condensing (at ≤35°C)
• Operating altitude: 10,000 ft
## Key Features
• Single 160-pin front-panel connector (J200, modified DIN style with 0.025" square posts)
• Option 01T interface for message-based and register-based control
• VXIplug&play support with Win32® API drivers for LabWindows/CVI and LabVIEW
• Compact form factor: 4.5" H × 0.75" W × 9.5" D; 9 oz
## Typical Applications
High-speed differential signal switching, multi-line bus routing (RS-232 and equivalent), bidirectional test configurations, and automated test equipment (ATE) environments requiring flexible relay matrix solutions.
## Compatibility & Integration
Designed for Astronics Adapt-a-Switch platform infrastructure. Requires Option 01T communication interface. Operates within Racal Instruments 1260-100/1260-101 VXI carriers and 1256 GPIB/Ethernet switching mainframes. EN55-11A emissions and EN61010-1 safety compliance.
