The DDC BUS-65515II is a MIL-STD-1553B interface module for IBM PC systems that functions as a Bus Controller (BC), Remote Terminal Unit (RTU), or Monitor Terminal (MT). This full-size printed circuit card provides dual-redundant MIL-STD-1553B connectivity, enabling avionics system communication, simulation, and testing directly from the host PC.
## Technical Specifications
• **Data Bus Standard:** MIL-STD-1553B (Dual Redundant)
• **Host Interface:** IBM PC Bus (ISA or compatible)
• **Form Factor:** Full-size IBM PC printed circuit card
• **Memory:** 4K x 16 dual-access RAM with double-buffered architecture
• **Time Tagging:** Onboard Time Tag Counter for event timestamping
• **Message Support:** All dual redundant MIL-STD-1553B message formats and mode codes
• **Configuration:** Jumper programmable interrupt level and RTU address selection
## Key Features
• **Multi-Mode Operation:** BC, RTU, and MT modes support diverse testing and simulation workflows without requiring separate hardware.
• **Data Integrity:** Double-buffered memory prevents partially updated data from being read by the CPU or transmitted to the bus.
• **Built-In-Test:** Dynamic wrap-around BIT capability enables rapid self-diagnostics of module functionality.
• **Integrated Architecture:** Single-card design minimizes integration complexity in PC-based test systems.
• **Full MIL-STD-1553B Compliance:** Supports all standard message formats, mode codes, and dual redundant bus operation.
## Typical Applications
• Avionics system development and validation
• MIL-STD-1553B bus simulation and emulation
• Real-time data acquisition and monitoring
• Integration testing for airborne and ground-based systems
## Compatibility & Integration
The module integrates into IBM PC systems and requires appropriate software drivers and APIs for BC, RTU, and MT operation. Implementation with DOS-based operating systems and IBM PC-compatible architectures is supported.
