Product Details
Micro 3G SDI Fiber Optical Extender Single Mode Fiber LC 20KM SMB
Connector
3G-SDI Fiber Extender Advantage
► Fully digital lossless transmission, no compression or delay,
synchronous transmission of audio and video;
► Broadcast level pathological code;
► Supports one channel of 3G-SDI input and embedded audio
synchronous transmission;
► Support bidirectional RS485/RS232 signal transmission;
► Support bidirectional external stereo audio transmission;
► The transmitter supports ring pass output, and the receiver
supports dual output;
► Strong compatibility, without selecting signal sources and
devices;
► Status indicator LED for real-time monitoring of parameters such
as power supply, optical path, video, etc
3G SDI Optical Extender Single Fiber Overview
The mini single core uncompressed 3G-SDI digital optical
transceiver is composed of a 3G-SDI transmitter and receiver, which
transmit high-definition SDI signals through single core single
mode optical fibers. Optical transceiver transmission has the
advantages of long transmission distance (1-80km), wide frequency
band, strong anti-interference performance, high safety
performance, small size, and light weight, making it suitable for
long-distance and special environment transmission.
The 3G-SDI digital optical transceiver has been widely used in
various fields such as large-scale multimedia video recording,
high-definition display, medical imaging, outdoor large screen
display systems, large-scale stage displays and entertainment
centers, television live streaming, multimedia conferences,
military command and exercises, and so on.
3G SDI over Fiber Transmitter Receiver Technical Indexes
SDI Input |
Video standard | SMPTE424M, SMPTE292M, SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M
(SDTI) |
Signal standard | SD-SDI(270Mbps), HD-SDI(1.485Gbps), 3G-SDI(2.97Gbps) |
Resolution | 10 Bit |
Connector | SMB |
SDI output |
HD-SDI Jitter | <0.2UI(134ps)@100kHz, <1.0UI(673ps)@10Hz |
SDI Jitter | <0.2UI(740ps)@10Hz, 0.2UI(740ps)@1kHz |
Impedance | 75Ω |
Connector | SMB |
Optical Interface |
SFP | Simplex LC, 3,125Gbps. ≤120km transmission distance |
Standard SM wavelength | 1310nm, 1550nm |
CWDM wavelength | 1270~1610nm, 20nm grid according ITU-T |
Temperature range | 0~70˚C |
Electrical |
Power | 5VDC, 1A |
Consumption | <5W |
LED Indicator |
FLT | Fiber link status (Transmitter) |
FLR | Fiber link status (Receiver) |
PWR | Power status |
Mechanical |
Dimensions (LxWxH) | 58 x 21 x 20 mm |
Weight | 100g/pair |
Casing | Aluminum Case |
Mounting Options | Desktop |
Environmental |
Working Temperature | -20℃~+70℃ |
Storage Temperature | -40℃~+80℃ |
Working Humidity | 0~95% |
MTBF | ≥100000 hours |
3G-SDI Video Fiber Converter Ordering Information
Model | Description |
LNK-M3G-SMB1V-20 | SMB 3G/HD/SD-SDI Optical Micro-Extender, 1310/1550nm, Simplex LC,
Single Mode, 20KM including Transmitter and Receiver, used by pairs |
Company Profile
Established in 2001 & headquartered in Shenzhen, E-link China
Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China.
Our main products include:

- Fiber Media Converters
- Industrial Ethernet PoE switchs
- PoE Injectors & Splitters
- PoE Extenders
- Serial Fiber Converters
- SFP Transceivers
- HDMI Fiber Converters
- DVI Fiber Converters
- HD/3G/6G/12G Fiber Extenders
- CCTV Fiber Optic Converters
- HDMI/ DVI/ VGA/ SDI Ethernet Extenders
(Industrial PoE Actual Display)
With rich experience in providing high quality products in the
telecom and CCTV business, E-link has a large manufacturing factory
in Shenzhen, able to provide cost-effective solutions
to serve our customers successfully.
(Automatic Mechanical Equipment)
Since the launch of our products in domestic and international
markets, we have won a good reputation for our high-quality
products and sincere services. Our products are widely applied to
- System of Telecom
- Public Security
- Bank
- Smart City
- Public transportation
- New Energy Developing
- CCTV Monitoring Transmission
We also provide ODM & OEM services and we have cooperated with some famous companies all
over the world. Our own brand "E-link" is also well known in many countries and have distributors there.
(Customer visit)
E-Link quality:
- ISO9001 Quality System
- CE, RoHS, FCC certified
- 48 hours of weathering test before delivery
- Conduct full-spectrum environmental and electrical testing on all
product designs

Our knowledgeable sales, technical support and engineering
personnel are dedicated to understanding your needs and designing
products and solutions to meet your needs. We would be happy to
provide you with the best price, quality products and fast
delivery.