The Astronics 1260-50C is a 200 MHz RF multiplexer module for signal routing and selection in RF and microwave systems. This C-size VXIbus module integrates eight 1×4 fifty-ohm multiplexers with bi-directional, software-reconfigurable architecture, eliminating the need for physical disassembly during reconfiguration. The module delivers excellent crosstalk and isolation characteristics across its operating bandwidth and supports both message-based (Option 01) and hybrid message/register-based (Option 01T) control interfaces. Relay coil current monitoring enables user-selectable confidence checking to verify proper relay operation. The 1260-50C is well-suited for test systems requiring high-frequency signal switching in conjunction with function/pulse generators, universal counter/timers, and oscilloscopes.
## Technical Specifications
• Bandwidth: 200 MHz (−3 dB)
• Configuration: Eight 1×4 multiplexers; reconfigurable to larger multiplexer arrays up to 1×39 via internal relay connections
• Characteristic Impedance: 50 Ω
• Form Factor: C-size, single-slot VXIbus module
• Weight: 2.49 lb (1.17 kg) without Option 01; 2.87 lb (1.29 kg) with Option 01 installed
## Key Features
• Bi-directional and reconfigurable switching without module disassembly
• Relay coil current monitoring for operational confidence verification
• GMCT user connector interface with coaxial connector housing supplied
• Coaxial cable assemblies available in 2, 6, and 12-foot lengths, tested to 1 GHz bandwidth
• Power consumption: +5 V @ 0.4 A (2.8 A with Option 01); +12 V @ 0.5 A
## Typical Applications
• Wideband signal routing up to 200 MHz
• RF/microwave test and measurement systems
• High-frequency pulse signal management
• Multi-instrument switching configurations
## Compatibility & Integration
• Compatible with VXI platforms supporting C-size modules
• Option 01 (Smart Card Module with native command set)
• Option 01T (Smart Card Module with message-based and register-based interface)
