The Astronics/EADS/Racal 1260-167B is a high-density, software-configurable dual 1×6 RF multiplexer plug-in module designed for precision microwave signal routing in aerospace, defense, and telecommunications systems. This electro-mechanical coaxial switch provides dual independent SP6T relay channels with SMA connectors, operating across DC to 18 GHz or DC to 26.5 GHz bandwidth. Part of the Adapt-a-Switch™ series, it integrates directly into VXI platforms and the 1256 Switching System with rapid switching performance and field-replaceable relays.
## Technical Specifications
• **Configuration:** Dual 1×6 RF Multiplexer (SP6T per channel)
• **Frequency Range:** DC to 18 GHz or DC to 26.5 GHz
• **Connectors:** SMA
• **Impedance:** 50 Ω
• **Switching Time:** <15 ms (including settling time)
• **Maximum Power (100 MHz):** 490 W
• **Switch Contact Lifetime:** 10 million cycles per position (25 million typical)
• **Electrical Rating:** 1,000,000 operations at full load
• **MTBF:** 860,000 hrs (1260-167AH) / 560,000 hrs (1260-167BH)
• **MTTR:** <5 min
• **Power Requirements:** +5 VDC; 1.4 A max (167AH) / 2.4 A max (167BH)
• **Operating Temperature:** −20°C to +60°C
• **Storage Temperature:** −40°C to +75°C
• **Humidity:** 90% non-condensing at <30°C
• **Shock:** 30 g, 11 ms, ½ sine wave
• **Vibration:** 0.013 in (pk-pk), 5 to 55 Hz
• **Dimensions:** 4.5" H × 1.5" W × 9.5" D (dual-slot carrier)
• **Weight:** 7.4 oz / 10.6 oz depending on model
• **Airflow:** 4.75 l/s
## Key Features
• Software-selectable multiplexer with high repeatability
• Field maintainable relay modules replaceable in <5 minutes
• Dual-slot form factor for compact system integration
• CE and EN61010-1 safety certified
• Compliant with EN61326 emissions and immunity standards
## Typical Applications
• Aerospace and defense RF signal switching
• Telecommunications test and measurement systems
• Multi-channel microwave signal routing and selection
## Compatibility & Integration
• 1260-100 Adapt-a-Switch™ Carrier (requires Option 01T controller)
• 1256 Switching System (no additional controller required)
• VXI platforms with VXIplug&play drivers for LabVIEW™ and LabWindows™/CVI
