The Abaco Systems / SBS ABI-PC3-2 is a dual-channel MIL-STD-1553 to ISA interface module engineered for laboratory, simulation, and test environments. This card delivers full-function connectivity through an Advanced Bus Interface (ABI) architecture, supporting concurrent and independent operation of Bus Controller (BC), up to 31 Remote Terminals (RT) per channel, and dual-function Bus Monitor (BM) capabilities. The module combines high-speed DSP, programmable logic, and dual-port RAM to enable flexible protocol handling with minimal host processor overhead.
Technical Specifications
• MIL-STD-1553 Channels: Dual redundant configuration, 1 or 2 active channels
• Bus Controller Operation: Full support
• Remote Terminal Capacity: Up to 31 RTs per channel
• Bus Monitor Function: Dual-function supported
• On-board RAM: 1 megabyte of dual-port RAM (with parity) per channel; 128 kilobytes total on-board RAM
• Memory Architecture: Link-list design for flexible interface memory usage
• Host Memory Window: 64 kilobytes (large window) or 16 kilobytes (small window) address block required; recommended base addresses: 0D0000h, 0E0000h, 0C0000h
• Interface: ISA backplane
• Direct Memory Access: Optional DMA support for autonomous buffer updates
• Event Interrupts: Programmable, extensive
• Variable Voltage Transceivers: Supported
• IRIG Time Code: Available option
– Key Features
• Host processor access for real-time setup, monitoring, and modification of 1553 data structures
• Dual redundant channels enable mission-critical fault tolerance
• Link-list memory architecture optimizes buffer allocation and reduces host intervention
• Programmable interrupt handling for event-driven operation
– Typical Applications
• Aircraft avionics test and simulation
• Military ground support equipment (GSE)
• Laboratory development and validation of 1553 systems
• Real-time monitoring and bus analysis
– Compatibility & Integration
Host processor device drivers and application-layer libraries are provided with source code. Support includes Borland and Microsoft C Compiler environments. Complete documentation—datasheets, manuals, software drivers—is available. Note: Product entered Restricted Production Phase effective June 1, 2007.
