Abaco Systems / SBS ABI-PMC2-1 MIL-STD-1553 Single Channel Interface

The Abaco Systems ABI-PMC2-1 is a single-channel MIL-STD-1553 interface card in PCI Mezzanine Card (PMC) form factor for embedded defense and aerospace systems. It operates concurrently and independently as a Bus Controller (BC), Remote Terminal (RT), or Bus Monitor (BM), with dual-redundant 1553 channels supporting MIL-STD-1553A/B. The card integrates a high-speed DSP, programmable logic, and 256 kB dual-port RAM with flash-based firmware storage. It delivers PCI 2.1 compliance at up to 132 MB/sec with 16-bit and 32-bit transfer modes, operating at 5 V and 3.3 V signal levels.

Technical Specifications

• MIL-STD-1553 Channels: 1 (dual redundant)
• Form Factor: IEEE P1386 PMC
• Memory: 256 kB dual-port RAM
• Bus Interface: PCI 2.1, 132 MB/sec maximum, 16-bit and 32-bit transfer modes
• Power: 5 V @ 1.5 A (98% bus activity), 1.0 A (bus inactive)
• Signal Levels: 5 V and 3.3 V compatible

– Key Features

• Bus Controller: Programmable frame lists, BC-RT/RT-BC/RT-RT message types, mode codes, broadcasts, minor frame timing, intermessage gap selection, linked-list BC data buffers
• Remote Terminal: 31 RT support across all subaddresses, programmable response time, no-response timeout configuration, linked-list RT data buffers
• Bus Monitor: Dual monitoring modes—map monitoring with multiple linked buffers per subaddress, and sequential monitoring with 100% independent operation, double-buffered time-stamped messages (1 µs 32-bit clock, optional 48-bit IRIG-B)
• Error Monitoring: Comprehensive error table accessible by host processor
• Optional Interfaces: 4-channel RS-422, 28-channel discrete I/O, 48-bit IRIG-B clock input
• Connectors: 50-pin SCSI coupling

– Typical Applications

Mil-aerospace embedded systems requiring concurrent multi-role 1553 bus interface with independent operation across BC, RT, and BM functions.

– Compatibility & Integration

Available in commercial, extended temperature, and conduction-cooled configurations. Programmable DMA controller supports flexible memory architecture and on-the-fly data structure management.