The Astronics/EADS/Racal 1260-17 is an 80-channel, Form C (SPDT) high-density switch module built for VXI platforms. It handles signal routing and external device actuation from DC through 60 MHz, delivering reliable switching across aerospace, defense, and industrial test environments. The module supports up to 250 VDC or VAC rms per channel at 1 A maximum current, with 30 W DC or 62.5 VA AC power capacity. Path resistance remains below 0.5 Ω while isolation exceeds 2 × 10⁹ Ω, ensuring minimal crosstalk and signal degradation. AC performance into 50 Ω shows insertion loss under 0.1 dB at 100 kHz, rising to less than 1.0 dB at 10 MHz, with isolation better than −30 dB at 10 MHz. Thermal EMF stays below 10 µV.
## Technical Specifications
• **Channels:** 80 Form C (SPDT)
• **Switchable Voltage:** Up to 250 VDC or VAC rms (terminal-to-terminal or terminal-to-chassis)
• **Switchable Current:** Up to 1 A per channel (DC or AC rms)
• **Switchable Power:** 30 W DC or 62.5 VA per channel
• **Bandwidth:** > 60 MHz (−3 dB)
• **Path Resistance:** 2 × 10⁹ Ω (DC); < −30 dB (10 MHz)
• **Thermal EMF:** < 10 µV
• **Input/Output Capacitance:** < 10 pF
• **Insertion Loss:** < 0.1 dB (100 kHz), < 0.5 dB (1 MHz), < 1.0 dB (10 MHz)
• **Crosstalk:** < −45 dB (100 kHz), < −40 dB (1 MHz), < −35 dB (10 MHz)
## Key Features
• Message-based or register-based control interfaces
• Relay contact confidence checking with user-selectable options
• 64-pin IDC quick-disconnect connector
• IDC ribbon cable or discrete wire connector options
• Requires compatible smart controller (Option 01 native command set or Option 01T SCPI command set)
• Airflow requirement: 1.0 liters/sec
## Typical Applications
• Aerospace and defense test systems
• Industrial signal routing and device actuation
• High-frequency general-purpose switching
• Multi-channel signal management in VXI test racks
## Compatibility & Integration
Designed for VXI platform integration. Controlled via Racal Instruments Option 01 message-based interface or Option 01T with both message-based and register-based control modes. One set of mating connectors supplied.
