HDMI to SDI+SDI Converter Technical Overview
Professional HDMI to SDI Conversion with Long-Distance Transmission Capability
The HDMI to SDI+SDI Converter is engineered for professional applications requiring reliable conversion of HDMI signals to SDI format with extended transmission capabilities. This device accepts HDMI input and provides dual SDI outputs capable of transmitting signals up to 300 meters using SD-SDI format. Operating at 2.97 Gbps maximum bitrate, the converter maintains full signal integrity while supporting 720p and 1080p resolutions. Compliant with SMPTE 424M/425M, 292M, and 259M standards, this converter is essential for broadcast, live event production, and professional AV installations requiring long-distance signal transmission.
Core Technical Architecture
| Component | Specification | Professional Application |
| Input Interface | HDMI | Consumer and professional source connectivity |
| Output Configuration | Dual BNC (SDI) | Simultaneous dual display distribution |
| Signal Processing | 2.97 Gbps bitrate maintenance | Broadcast-quality conversion |
| Transmission Distance | Up to 300m (SD-SDI) | Long-distance installation capability |
| Compliance Standards | SMPTE 424M/425M, 292M, 259M | Broadcast industry compliance |
| Physical Design | 97*55*23mm compact enclosure | Flexible installation options |
In-Depth Technical Analysis
1. Signal Processing Performance
- Bitrate Maintenance: Full 2.97 Gbps processing for 3G-SDI signals
- Format Conversion: HDMI to SDI with embedded audio support
- Signal Reclocking: Clean output signal for long-distance transmission
- Real-time Operation: No frame delay or processing latency
2. Transmission Capabilities
- 3G-SDI: Up to 100m transmission distance
- HD-SDI: Up to 200m transmission distance
- SD-SDI: Up to 300m maximum transmission distance
- Cable Quality: Performance varies with cable specification
3. Interface Capabilities
- HDMI Input: Supports 720p and 1080p resolutions
- Dual SDI Outputs: Simultaneous output to two displays
- BNC Connectors: Professional locking connectors
- LED Indicators: Power and signal lock status
4. Standards Compliance
- SMPTE 424M/425M: 3G-SDI standards for 1080p
- SMPTE 292M: HD-SDI standards for 720p/1080i
- SMPTE 259M: SD-SDI standards for long-distance
Detailed Technical Specifications Table
| Category | Parameter | Detail |
| Interfaces | Input | 1 * HDMI |
| | Outputs | 2 * BNC (3G-SDI/HD-SDI/SD-SDI) |
| Signal | Max Bitrate | 2.97 Gbps |
| | Supported Resolutions | 720p, 1080p |
| | Transmission Distance | 100m (3G), 200m (HD), 300m (SD) |
| | Compliance | SMPTE 424M/425M, 292M, 259M |
| Electrical | Power Supply | DC 5V via USB |
| | Power Consumption | 5W (maximum) |
| | ESD Protection | ±8kV (air), ±4kV (contact) |
| Physical | Dimensions | 97mm * 55mm * 23mm |
| | Weight | 130 grams |
| | Enclosure | Metal construction |
| Environmental | Operating Temperature | 0°C to 40°C |
| | Storage Temperature | -20°C to 60°C |
| | Humidity | 20% to 90% RH (non-condensing) |
