Mini-type Fiber Converter with Tally & Reverse RS485 over a HD-SDI Loop Output
Mini-type HD-SDI to Fiber Converter with Tally & Reverse RS485
Overview
The LNK-MHD-1V Series is a compact HD-SDI fiber optic transmission solution designed for
professional video applications. This mini converter features:
- 1-channel HD-SDI video transmission with embedded audio
- Integrated Tally signal support for camera control
- Reverse RS485 data channel for bidirectional communication
- Local HD-SDI loop output for real-time monitoring
Key Features:
• Single fiber optic cable transmission for long-distance signal delivery
• Includes one transmitter and one receiver unit
• Supports standard HD-SDI video formats
• Compact design ideal for space-constrained installations
Applications:
- Broadcast studios
- Live event production
- Video surveillance systems
- Professional AV installations
This reliable fiber optic converter ensures high-quality HD video transmission while maintaining signal
integrity over extended distances. The compact form factor makes it particularly suitable for mobile
production setups and fixed installations where space is limited.
Features
Automatic cable equalization, used for all rate below 1.5 Gb/s (Belden 1694A)
Directly compatible with SDI camera systems
Super optic dynamic range and free of adjustment
industry level ultra-broad temperature range (-20℃~+70℃), adaptable to various environments
Handle all Pathological patterns, fully digital non-compression broadcast level transmission
Application
Technical Indexes
| Fiber Optical interface | |
| Fiber interface | Simplex LC |
| Transmission distance | 550m-20Km |
| Wavelength | 1310nm/1550nm |
| Video | |
| Video interface | BNC |
| Video input/output impedance | 75Ω |
| Video input/output voltage | Typical:1Vpp, Min 0.5Vpp, Max 1.5Vpp |
| Video Bits Rate | Max 1.48Gb/s |
| Differential gain (10%～90% APL) | <1% |
| SDI format support | 625/25 PAL |
| 525/29.97 NTSC, 525/23.98 NTSC | |
| 720p50, 720p59.94 | |
| 1080i 23/24/30/50/59.94 | |
| Video SDI standard | 270Mbps (SD-SDI) |
| 1.485Gbps (HD-SDI) | |
| Data | |
| Physical interface | Industrial standard screw terminal |
| Data type | Tally & Reverse RS485 |
| Frequency/Rate support |
Max. 115200bps for RS422 Max. 57600bps for RS485 |
| BER | <10ˉ9 |
| Electrical | |
| Power adaptor | DC 5V |
| Power consumption | <5W |
| LED Indicator | |
| SDI | SDI video |
| P/T | Power Supply |
| Mechanical | |
| Dimensions (LxWxH) |
73 x 44 x 17 mm (TX) 73 x 44 x 17 mm (RX) 185 x 132 x 100 mm (Package) |
| Weight |
75g (TX) 75g (RX) 450g (Package) |
| Casing | Aluminum Case |
| Mounting Options | Desktop |
| Environmental | |
| Working Temperature | -20℃～+70℃ |
| Storage Temperature | -40℃～+80℃ |
| Working Humidity | 0~95% |
| MTBF | ≥100000 hours |
Ordering Information
| Model | Description |
| LNK-MHD-1V-MM | Mini-type HD-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, MMF, LC Fiber Connector 500 meters, including Transmitter and Receiver, used by pairs |
| LNK-MHD-1V-20 | Mini-type HD-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, SMF, LC Fiber Connector 20KM, including Transmitter and Receiver, used by pairs |
| LNK-MHD-1V-40 | Mini-type HD-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, SMF, LC Fiber Connector 40KM, including Transmitter and Receiver, used by pairs |
Interface&LED
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