The Astronics/EADS/Racal 1260-37A is a VXI C-size multiplexer module that integrates 40 Form C (SPDT) switches and eight 1×6 two-wire multiplexers into a single-slot module for test system switching and signal routing. The module supports configurable multiplexer expansion via on-board jumpers—enabling four 1×12, two 1×24, or one 1×48 two-wire channel arrangements—making it adaptable to diverse switching topologies. Signal handling capacity reaches 1A at 250VDC or ACrms, suitable for medium-power switching applications.
## Technical Specifications
• **Switching Elements:** 40 independent Form C (SPDT) relays; 8 integrated 1×6 two-wire multiplexers
• **Multiplexer Configurations:** User-selectable via on-board jumpers to four 1×12, two 1×24, or one 1×48 two-wire channels
• **Signal Capacity:** Up to 1A at 250VDC or ACrms
• **Form Factor:** VXI C-size plug-in module, single slot
• **Connectors:** IDC (ribbon cable) or crimp (discrete wire) options
## Key Features
• Monitored relay coils enable selectable confidence checking for relay operation verification
• Compact single-slot design minimizes cabling complexity and reduces chassis footprint
• On-board jumper configuration eliminates hardware changes for multiplexer topology reconfiguration
• Dual connector options accommodate different wiring infrastructure requirements
## Typical Applications
• Multi-channel signal routing and analog switching in automated test equipment (ATE)
• General-purpose switching networks requiring flexible channel expansion
• Confidence-monitored relay control in mission-critical test systems
## Compatibility & Integration
The 1260-37A requires installation of a compatible smart controller—either Racal Instruments Option 01 (native command set) or Option 01T (SCPI command set with message-based and register-based operation)—positioned in the leftmost slot of the 1260-xx series module set. This architecture enables standardized VXI platform integration with deterministic message-based control.
