Astronics / EADS / Racal 1260-700 Prototyping I/O Plug-In Module

The Astronics/EADS/Racal 1260-700 is a prototyping I/O plug-in module for the Adapt-a-Switch platform, enabling rapid custom circuit development and testing. It has 88 bidirectional TTL I/O lines, individually configurable as inputs or outputs in 8-bit port groups. The module supports asynchronous, synchronous, and mixed synchronous operating modes with two-wire programmable handshaking (active high or active low). Data rate on VXIbus systems reaches 200 kHz. ## Technical Specifications • Digital I/O: 88 TTL lines, configurable per 8-bit port • Operating Modes: Asynchronous, synchronous, and mixed synchronous • Handshaking: Two-wire programmable, selectable active high/low • Data Rate (VXIbus): 200 kHz • Power Supply: Fused +5 VDC; when in carrier, fused +12 V and +24 V available • Prototyping Area: 0.1 × 0.1-inch grid card with ground bus and two uncommitted buses (jumper-configurable to internal or external supply) ## Key Features • Open-architecture design permits substitution of custom plug-in boards for specialized applications (ADCs, DACs, switch cards) • Individual port-level I/O configuration without module redesign • Two uncommitted buses support flexible breadboarding and power routing • Blank front panel with options for 64-pin IDC or 160-pin DIN connector cutouts • Includes prototyping kit with card, interface connector, and panel hardware ## Typical Applications • Custom signal conditioning and routing • Prototype analog-to-digital and digital-to-analog conversion stages • User-defined switching matrices and test point multiplexing • Flexible I/O expansion in modular test systems ## Compatibility & Integration The 1260-700 integrates with the Adapt-a-Switch VXIbus Carrier (Model 1260-100) or the 1256 GPIB Switching Mainframe. VXIplug&play framework support includes drivers for LabWindows/CVI and LabVIEW on Windows 95/98/ME/NT/2000/XP. Operating altitude to 10,000 ft; non-operating to 15,000 ft.