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The LNK-MHD-1V1D1T Series represents a professional HD-SDI fiber transmission solution engineered for modern broadcast and video production environments. This advanced mini-type HD-SDI fiber converter delivers reliable HD-SDI video transmission with embedded audio, tally signaling, and bidirectional RS485 control over single-mode fiber infrastructure. Designed as a compact professional HD-SDI fiber system, it enables seamless integration of camera systems and production equipment while maintaining broadcast-grade signal quality throughout the transmission path.
This sophisticated HD-SDI fiber converter operates as a matched transmitter and receiver pair, ensuring complete signal integrity from source to destination. The integrated HD-SDI fiber solution features a local loop-through output that provides real-time monitoring capability while maintaining uninterrupted primary signal transmission to control rooms or production facilities. The rugged industrial HD-SDI fiber construction guarantees stable performance in demanding conditions, making it equally suitable for permanent studio installations and mobile field production setups.
The versatile high-performance HD-SDI fiber converter maintains full compatibility with HD-SDI standards while supporting 1080P high-definition video resolution with pristine audio quality. This reliable HD-SDI fiber transmission system provides broadcast engineers and system integrators with a robust solution for extending video signals across distributed facilities while preserving original signal characteristics. The space-efficient compact HD-SDI fiber design allows for flexible installation in equipment racks, broadcast flypacks, and mobile production units where physical space is often limited.
Engineered for maximum operational flexibility, this professional-grade HD-SDI fiber converter supports comprehensive production workflows through its integrated tally system and camera control capabilities. The advanced fiber-based HD-SDI technology delivers exceptional signal stability and complete immunity to electromagnetic interference, making it particularly valuable for installations in electrically challenging environments. This high-quality HD-SDI fiber solution meets the rigorous demands of broadcast television, live event production, and professional AV applications where uncompromising signal integrity and operational reliability are essential for successful mission-critical operations.
Each video channel carries 8 embedded audio tracks, enabling synchronized audio-video transmission without separate cabling infrastructure.


Built-in cable compensation technology maintains signal integrity for all data rates up to 1.5Gb/s, compatible with Belden 1694A and equivalent coaxial cables.
Broadcast & Live Production
Deployed in outside broadcast vans and live event production, this HD-SDI fiber converter transmits 1080P video with embedded audio over single-mode fiber with 40km reach and tally support for remote camera operations.
Studio & Production Facilities
Used in broadcast studios and production control rooms, the converter enables camera-to-control room links with RS485 control and pathological pattern handling for professional broadcast workflows.
Security & Surveillance Systems
Ideal for city surveillance networks and traffic monitoring, the device provides long-distance transmission of uncompressed HD video with hot-swap capability for continuous operation.
Corporate & Education AV
Applied in lecture halls and conference rooms, this fiber converter enables high-quality video transmission between multiple buildings with LED status monitoring for system reliability.

Intelligent Multi-Rate Reclocking
Self-adjusting signal processing automatically locks to SDI rates from 270Mbps to 1.48Gbps, ensuring stable synchronization across varying signal conditions.
Seamless Camera System Integration
Direct compatibility with professional HD-SDI camera systems enables plug-and-play operation without signal conversion or quality degradation.
Extended Fiber Transmission Reach
Robust optical transmission capability supporting distances up to 40km over single-mode fiber while maintaining broadcast-quality performance.
Hot-Swappable Operation Design
Hot plug capability allows for system maintenance and component replacement without disrupting ongoing operations or powering down equipment.
Advanced Signal Processing
Comprehensive pathological pattern handling with uncompressed digital transmission meeting professional broadcast standards and signal integrity requirements.
Fiber Optical interface | |
Fiber interface | Simplex LC |
Transmission distance | 550m-40Km |
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 1.5Gb/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 | |
1080P 23.98/24/30 | |
Video SDI standard | 270Mbps (SD-SDI) |
1.485Gbps/M(HD-SDI) | |
| |
Data | |
Physical interface | Industrial standard screw terminal |
Data type | Tally and Reverse RS485 |
Frequency/Rate support | Max. 115200bps for RS422 Max. 57600bps for RS485 |
BER | <10ˉ9 |
Electrical | |
Power adaptor | DC 5V Type-C |
Power consumption | <5W |
LED Indicator | |
SDI | SDI video |
P/T | Power Supply |
Mechanical | |
Dimensions (LxWxH) | 72 x 42 x 22 mm |
Weight | 0.6KG/pair |
Casing | Aluminum Case |
Mounting Options | Desktop |
Environmental | |
Working Temperature | 0℃~+55℃ |
Storage Temperature | -20℃~+70℃ |
Working Humidity | 0~95% |
MTBF | ≥100000 hours |
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