The DDC BUS-68005 is a portable MIL-STD-1553 data bus exerciser that simulates, tests, and troubleshoots MIL-STD-1553A and 1553B communication systems. It delivers full-function simulation of both Bus Controller (BC) and Remote Terminal Unit (RTU) operations, supporting up to 8 simultaneous RTU simulations with flexible memory mapping for real-time transmission and reception. The exerciser implements protocol tests from the SAE AE-9A Production Test Plan, including RT Address, Word Count, Subaddress, Error Injection, Dual-Redundant Operation, Mode Commands, Status Word, Broadcast Messages, and RT to RT Transfers.
## Technical Specifications
• **System Compatibility:** MIL-STD-1553A and MIL-STD-1553B
• **Functional Simulation:** BC simulation supports BC-to-RT, RT-to-BC, and RT-to-RT message formats; can simulate both BC and one RTU in RT-to-RT transfers
• **Remote Terminal Capacity:** Up to 8 simultaneous RTU simulations with mapped memory blocks for real-time operation
• **Response Time:** 6 to 31 microseconds in 1-microsecond increments
• **Message Gap:** Variable
• **Transmitter Amplitude:** Variable
• **Response Time-Out:** Programmable
• **Error Modes:** Single, Repeat, or Halt-on-Error operation; detects response time, continuity, fail-safe timeout, Manchester coding, sync, parity, and bit/word count errors
• **Data Storage:** Internal RAM for message/command data, block linking information, transmit/receive words, and control word parameters
## Key Features
• Local programming via 24-pad keyboard and 10-character alphanumeric display
• Remote programming via 8-bit parallel I/O, RS-232, or IEEE-488 (with DMA support)
• Full RS-232 CRT terminal control for low-speed commands
• High-speed command interface using single-character ASCII mnemonics with binary byte parameters
• Error generation and detection with comprehensive diagnostic flagging
• Built-in power-on self-test
## Typical Applications
• MIL-STD-1553 system validation and production testing
• Remote terminal protocol compliance verification
• Bus controller functional simulation and troubleshooting
• RT-to-RT transfer testing
## Compatibility & Integration
The BUS-68005 interfaces with test systems and production environments through RS-232, IEEE-488 (including DMA), and parallel I/O connectivity, enabling integration into automated test sequences.
