The Astronics/EADS/Racal 1260-50D is a 200 MHz RF multiplexer module engineered for signal routing and switching within RF and microwave test systems. This C-Size, single-slot VXI module delivers bi-directional, software-configurable signal distribution across multiple multiplexer topologies without requiring module disassembly. It integrates directly with Racal Instruments Option 01 or 01T smart cards for message-based and register-based control.
## Technical Specifications
• **Bandwidth:** Up to 200 MHz across all multiplexer configurations
• **Multiplexer Configuration:** 16 × 1×4 (50 Ohm) switchable into alternative topologies
• **Reconfigurable Sizes:** Sixteen 1×4, eight 1×9, four 1×19, two 1×39, or one 1×79 multiplexer
• **Interfaces:** Coaxial connectors; message-based control via Option 01 or message/register-based via Option 01T
• **Module Format:** 1-slot C-Size VXI module
• **Power Requirements:** +5 V at 0.4 A (2.8 A with Option 01 installed)
• **Airflow:** 1.0 liters/sec
• **Weight:** 2.59 lb (1.17 kg) without Option 01
## Key Features
• Excellent crosstalk and isolation performance across signal paths
• Relay coil current monitoring enables user-selectable confidence checking for relay operation verification
• Software reconfigurable multiplexer topology—no hardware modification required
• 200 MHz bandwidth maintained across all multiplexer configurations when unused groups are disconnected
• Coaxial connector housing supplied; connector pins purchased separately
## Typical Applications
Intended for RF and microwave test systems requiring high-frequency or fast pulse signal switching, including integration with function/pulse generators, universal counter/timers, and oscilloscopes.
## Compatibility & Integration
Fully compatible with VXI platforms. Controlled via Racal Instruments Option 01 or 01T smart cards. Legacy Racal Instruments branded units are functionally equivalent. Coaxial cables available in 2, 6, and 12-foot lengths, tested to 1 GHz bandwidth with coaxial pins at each end.
