Abaco Systems / SBS / Greenspring IP-Altera / IP-Altera-RO Digital I/O IndustryPack Module

The Abaco Systems IP-Altera / IP-Altera-RO is a single-wide IndustryPack module that delivers 28 programmable digital I/O lines for custom protocol implementation and non-standard signal interfacing. Built around an Altera 10K40-3 FPGA, this module combines 20 differential I/O lines with 8 TTL I/O lines, each with independently programmable direction. The design integrates LineSafe ESD protection on TTL channels and socketed termination resistors on differential lines, making it ideal for aerospace and satellite test applications requiring flexible digital I/O control.

Technical Specifications

• Digital I/O Architecture: 28 total lines - 20 differential, 8 TTL


• FPGA: Altera 10K40-3


• Bus Interface: 32 MHz IP Specification with 1 wait state


• Programmability: I/O direction configurable per line


• Reference Output: 1.5 V on designated pin for differential receiver biasing


• Form Factor: Single-wide IndustryPack

Key Features

• Differential I/O lines feature individual output enable bits and socketed termination resistors


• TTL I/O lines include tri-state buffers and LineSafe ESD protection


• Altera 7.1 design file-set with schematic, ACF, simulation, and vector files on included 3.5-inch High-Density floppy disk


• Design kit (IP-Altera-422) includes 50-pin ribbon cable, terminal block, printed schematics, Bill of Materials, assembly drawing, and User's Manual


• Royalty-free license to modify and use supplied design files

Typical Applications

• Satellite and aerospace test environments


• Custom digital protocol implementation


• Non-standard communication interface development


• Systems requiring programmable differential and TTL signal routing

Compatibility & Integration Requires user-supplied Altera Development System for custom design implementation. Supplied design file-set includes IndustryPack bus control interface, example digital I/O implementation, interrupt handling, and ID PROM logic.