The Westar VAA HotLink Input and DVI Output Interface Module converts HotLink packet video signals into industry-standard DVI video formats for professional display and equipment integration. The module processes four channels of HotLink video input, each delivering 512H × 512V pixels in Red, Green1, Green2, and Blue. The VAA reformats incoming pixel data to center a 512 × 512 pixel image (Red, Green1, Blue) within an 800H × 600V SVGA output, compliant with VESA 900602 timing. A selectable state machine processes incoming HotLink packets and generates raster digital video output; if valid packets are suspended after receipt, the module outputs the most recently captured frame. Each of the four channels routes to independent DVI video output connectors, with analog outputs also available. The VAA accepts power via a standard IEC 320 inlet with a 250V, 1.6 A fast-acting fuse (5 × 20 mm), consuming approximately 0.6 A at 115 VAC. AC inlet safety ground connects directly to the rear ground lug via 16 AWG conductors.
Technical Specifications
Input Signals
• Four channels of HotLink packet video per Westar PS 14-11196, Appendix IV
• Per-channel pixel format: 512H × 512V (Red, Green1, Green2, Blue)
Output Signals
• Four DVI video outputs
• Analog outputs available in parallel with DVI
• Output resolution: 800H × 600V SVGA (Red, Green, Blue)
• Pixel mapping: 512 × 512 center region within 800 × 600 frame
• Timing standard: VESA 900602
Video Processing
• Selectable Green channel processing (Green1 or Green2 via DIP Switch #3)
• State machine packet processing with frame hold capability
• Output inactive when valid HotLink packets are absent
Electrical
• Input: 115 VAC, ~0.6 A
• Fuse: 250V, 1.6 A fast-acting (5 × 20 mm); spare included
• Power inlet: IEC 320 with fused sliding mechanism
• Safety ground: 16 AWG conductors to rear lug and AC supply ground
– Key Features
• Multi-channel architecture with independent DVI outputs per channel
• Dual output capability (DVI and analog) without switching
• Software-selectable Green channel selection for dual-Green Bayer patterns
• Automatic frame retention during packet loss
• Compact industrial form factor
– Typical Applications
• Multi-camera video distribution and display integration
• HotLink-to-DVI protocol bridging in surveillance and imaging systems
• Professional video processing environments requiring four-channel simultaneous conversion
– Compatibility & Integration
The VAA integrates with the broader Westar product ecosystem, including VP7, VP13, and VP14 display controllers, plus the 110459 Parallel Video to DVI converter. Refer to the Westar VAA Operation Manual for detailed configuration and control procedures.
