SDI fiber extender for SD HD 3G and 4K 12G SDI with return RS485 Data

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Description Features Model Selection Specification Support

xperience the pinnacle of broadcasting with our state-of-the-art Thor Fiber Transmitter and Receiver devices, engineered for uncompromising performance. Each Thor Fiber Transmitter boasts a singular SDI input alongside a convenient SDI loopout, while its counterpart Receiver graciously offers two SDI outputs. Seamlessly integrating single-mode fiber optics, this multirate Ultra High Definition solution boasts unparalleled efficiency with zero latency, ensuring flawless operation even in the most demanding real-world scenarios.

Our units feature transparent, loss-free transmission technology, meticulously crafted to uphold broadcast-grade image quality while seamlessly preserving embedded audio signals. Whether it's the production of immersive 4K/8K ultra high-definition television programs or the live broadcast of monumental concerts or sporting spectacles, our Thor Fiber Transmitter and Receiver devices stand as the trusted backbone for delivering uncompromised visual and auditory excellence.

Empower your workflow with our 12G-SDI solutions, designed to streamline production and post-production processes with unparalleled bandwidth capabilities. By effortlessly connecting cameras directly to fiber optics, our solutions simplify workflows, enabling the seamless handling of high-resolution, high-frame-rate, and deep-color content over a singular, robust cable infrastructure. Elevate your broadcasting endeavors with Thor Fiber – where cutting-edge technology meets unparalleled reliability.


1. Compact design with a casing size of 93.0mm×45.0mm×29.2mm

2. Unidirectional 12G/6G/3G/HD/SD-SDI signal transparent transmission, the bit rate is auto-adaptive

3. PAL/NTSC auto-detection

4. Pass SDI pathological code test and compliant with SMPTE RP178 standard


  • Integrated cable equalizer and Re-Clocker for SDI input
  • Provides one SDI loop output, supports long-distance driver
  • Provides SDI input lock indicator and power indicator


  • Provides dual SDI outputs, with integrated re-clocker
  • Provides optical input lock indicator and power indicator

7. BNC input/output interface has 15kV electrostatic protection ability, which can meet indoor application

8.Compliant with SMPTE ST297, ST2081, ST2082, SMPTE 424M, SMPTE 292M, SMPTE 344M, SMPTE 259M, and DVB-ASI standard


  • Standards:
  • SD Video Standards: 525i59.94 NTSC, 625i50 PAL
  • HD Video Standards:
    • 720p50, 720p59.94, 720p60
    • 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60
    • [email protected], 1080P@24, 1080P@25, [email protected], 1080P@30
    • 1080i50, 1080i59.94, 1080i60
  • 2K Video Standards:
    • 2K DCI 23.98p, 2K DCI 24p, 2K DCI 25p
    • 2K DCI 23.98PsF, 2K DCI 24PsF, 2K DCI 25PsF
  • Ultra HD Video Standards: 2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30
  • 4K Video Standards: 4K DCI 23.98p, 4K DCI 24p, 4K DCI 25p

10. SFP LC/PC optical module INLUDED,  with 1310nm, 20km long haul, compliant with SFP MSA and SFF-8472 standard

  • With higher overload power, allows for short jumpers to connect for testing purposes
  • Optional LC/ST cable

11. Video Input Digital: 1-Channel independent 12G-SDI , SMPTE-259/292/424/2081/2082

12. Video Output Digital: 1-Channel independent 12G-SDI Loop out, SMPTE-259/292/424/2081/2082; 1-Channel Single Mode LC Fiber connector, SMPTE-297/259/292/424/2081/2082

13. Reclocking: 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, 2.970 Gbps, 5.934 Gbps, 5.940 Gbps, 11.868 Gbps, 11.880 Gbps - Auto Select; All other rates are passed through and not reclocked

14. Power adaptor

  • Input :AC 90~264V @50~60Hz
  • Output DC +12V
  • The power plug has anti-shedding protection function

15. Provides CLI interface for failure location

16. Working temperature: -40°C~+85°C


Application Examples

Model Selection

F-12G-SDI-D-TX/RX -12G SDI fiber optic transmitter receiver kit

F-12G-SDI-D-TX - 12G SDI fiber optic transmitter

F-12G-SDI-D-RX - 12G SDI fiber optic receiver




Typical value

SD/HD/ 3G/6G/ 12G-SDI



BNC for SDI 

LC connector via SFP

Bit rate

12Gb/s, 6Gb/s, 2.97Gb/s, 1.485Gb/s and 270Mb/s auto adaption



Return loss





Output level


Amplitude overshoot


Rise and fall time (SD-SDI)


Rise and fall time (HD-SDI)


Rise and fall time (3G-SDI)


Rise and fall time (6G-SDI)


Rise and fall time (12G-SDI)


SD-SDI alignment jitter (1KHz)


SD-SDI timing jitter (10Hz)


HD-SDI alignment jitter (100KHz)


HD-SDI timing jitter (10Hz)


3G-SDI alignment jitter (100KHz)


3G-SDI timing jitter (10Hz)


6G-SDI alignment jitter


6G-SDI timing jitter


12G-SDI alignment jitter


12G-SDI timing jitter



Power supply

DC 12V

Input voltage range


Power consumption

Transmitter: 3.6W±10%

Receiver: 2.6W±10%

Environment Requirements

Working temperature

-40°C ~ 85°C

Relative Humidity

≤95%, no condensation

Storage temperature

-40°C 85°C

Mechanical Dimension


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Contact Us

Thor Broadcast Sales

Customer Service/ Support