The Curtiss-Wright DHAS-MBS1616 is a 16×16 crosspoint switch designed for MIL-STD-1553 avionics bus environments. It functions as a virtual patch panel within a compact 1U rack-mountable chassis, enabling dynamic routing between 16 transformer-coupled LRU ports and 16 MIL-STD-1553 differential buses without physical rewiring. The switch supports MIL-STD-1553A, MIL-STD-1553B, and mixed-device environments, accommodating LRU units configured as bus controllers (BC), remote terminals (RT), or bus monitors (BM).
## Technical Specifications
• **Configuration:** 16×16 crosspoint switch
• **Chassis:** 19″ rack-mountable, 1U height
• **LRU Ports:** Up to 16 transformer-coupled inputs via standard concentric twinax connectors
• **Bus Connections:** Up to 16 MIL-STD-1553 differential bus outputs via standard concentric twinax connectors
• **Control Interface:** EIA-232 (RS-232) out-of-band port
• **Supported Standards:** MIL-STD-1553A, MIL-STD-1553B, mixed-device operation
• **NSN:** 5998-01-608-8068
## Key Features
• Single-path switching—each LRU port connects to one bus at a time
• Relay-based physical disconnection of idle LRU and bus coupling elements
• Non-volatile configuration memory with automatic restoration to last working state after power-up
• Command-line interface (CLI) with on-line help and scripting support (PERL, TCL)
• Transformer-coupled LRU support only; direct-coupled devices not compatible
• Supports both non-redundant and redundant (dual or greater) device configurations
## Typical Applications
Avionics test systems, MIL-STD-1553 bus simulation environments, LRU functional validation, multidevice integration testing, and aerospace defense system development.
## Compatibility & Integration
Designed for transformer-coupled MIL-STD-1553 devices. External power supply required. Integrates into larger test infrastructure via RS-232 control port and supports automated test sequences through CLI scripting.
