Astronics / EADS / Racal 1260-54 1.3 GHz Multiplexer VXI Module

The Astronics/EADS/Racal 1260-54 is a 1.3 GHz RF multiplexer VXI module engineered for high-frequency signal routing and switching in VXI-based test systems. Six independent banks, each configured as 1×4 multiplexers, deliver flexible channel selection with tree architecture that eliminates unterminated stub effects and preserves signal integrity across the frequency range. ## Technical Specifications • Module Type: 1.3 GHz RF Multiplexer VXI Module • Configuration: Six independent 1×4 tree multiplexers (24 total switched channels) • Frequency Range: Up to 1.3 GHz • DC Performance: Offset voltage 10⁸ Ω • Channel Isolation: Excellent performance between channels • Crosstalk: Excellent performance • VSWR: Excellent performance • Low-Noise Operation: Designed for switching of low-level RF signals ## Key Features • Tree switching architecture mitigates bandwidth limitations from unterminated stubs • Optional on-board 50 Ω terminators for unused inputs • Fifth position per bank provides no-connect state when signal isolation is required • Single connection constraint: only one active connection per common bus at any time • Relay coil current monitoring enables confidence checking of relay operation status • Message-based control via Option 01 interface with standard command syntax: CLOSE . • CE marked for compliance with European electrical safety standards, RF emissions, and electromagnetic immunity ## Interfaces & Control • VXIbus interface compatibility • Option 01 Smart Card Module required for message-based control • Approximately 2.59 lb (1.17 kg) weight without Option 01 ## Typical Applications RF signal routing in automated test equipment, receiver multichannel selection, transmit path switching, and low-level signal multiplexing in laboratory and production test environments.