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4Ch 3G SDI Video to Fiber Converter with 1ch Forward Audio

1-9 Pairs
10-99 Pairs
>=100 Pairs
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1 Pair
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Company Information

Shenzhen E-Linkchina Technology Co., Ltd.

CN Manufacturer
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US$ 10,000+
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Quick Details

Place of Origin: Guangdong China
Brand Name: E-link
Model Number: LNK-3GSDI-4V1A
Optical Fiber: single mode single fiber
Video Support: SDI 1080p
Distance: 20km
Audio: 1ch forward Audio
RS-485/422/RS232 Data: No
Connector: FC/BNC 75&Omega;
Wavelength: 1310nm, 1550nm.
Power Consumption: 12W
Power supply: DC 12V/1A
Product name: 3G SDI Video to Fiber Converter
Delivery Detail: 5 days after payment
Selling Units: Single item
Single package size: 36X19X8 cm
Single gross weight: 2.5 KG
Package Type: 3G SDI Video/Audio Fiber Converter Standard Export Packing

4Ch 3G SDI Video to Fiber Converter with 1ch Forward Audio 

Product Description


Model: LNK-3GSDI-4V1A




LNK-SDI-4V Series supports 4-channel HD-SDI standard high-definition video signal transmitted via single fiber optical cable. E-link HD-SDI Video over Fiber Converters includes one transmitter and one receiver for 1080P HD-SDI signal. E-link HD-SDI Fiber Converters can simultaneously transmit 4-Ch SDI Video, 1/2-Ch Audio, 1/2-Ch Data RS-232/422/485, 1/2-Ch Switching Value, and 1-Ch Ethernet signal through a single optical fiber. The video quality up to broadcast standard, audio quality up to CD level, supports RS-232, RS-422 and RS-485 data communication format and Ethernet connection.




  • SD/HD-SDI video signal supported;
  • Complied with SMPTE 259M SD-SDI, SMPTE 292M HD-SDI
  • Support 1485Mb/s and 270Mb/s transmission data rate
  • Audio, Switching Value, RS232/422/485 Data Oprional
  • Support 1080P@30,29.97,25,24,23.98; 1080I@60,59.94,50; 720P@60,59.94, 50,30,29.97,25,24,23.98 and 625i, 525i video format
  • Full digital non-compression broadcast level transmission;
  • super optic dynamic range and free of adjustment prior to use;
  • surface coating technique;
  • fiber optic WDM/CWDM/DWDM technique;
  • 1000M optical fiber transmission, easy for update;
  • industry level ultra-broad temperature range (-40℃~+85℃), adaptable to various environments; 

Technical Indexes

Serial TV, BNC Input

Signal standard: SMPTE 292M, 259M, 297M, 305M, 310M, M2S, DVB-ASI, DVB-SSI and Telecom/Datacom


rate 2.97Gb/s)


Input number: 4


Reflection loss: >15DB


Equilibrium: 0-150m @1.485Gb/s


Connector: FC/PC(SC/PC optional)



Channel: 1


Type: single-mode (multimode optional)


Wavelength: 1310nm /1550nm


Trasmission distance 20Km


Reflection loss: > 15dB


Dithering: < 0.2UI


Connector: FC/PC (SC/PC optional)


Serial TV, BNC output (EO/OE)

Output number:4


Signal level: 800mV nominal


Rise/fall time: 200ps indication


Overshoot: < 10% amplitude


Reflection loss: >15dB


Dithering: < 0.2UI


Connector: 75Ω BNC


Analog audio

Input/ output impedance: 600Ω equilibrium


Input/output interface: XLR


Max. input/output level: +15 dBu


Frequency Response: 20Hz-20KHz,±0.1dB


SNR: > 85dB(A weighted)


THD+N: < 0.01%@1KHz


Crosstalk: < -90dB



Channel: 1


Data format: RS-485/422/RS232 (full/half duplex) and support NRZ, RZI and Manchester


Data rate: DC to 100 Kb/s


Mode: Full/half duplex


Connector: wire connecting terminal


Power and environmental indication

Operating temperature: -40℃~+85


Pressure: 1A@12VDC


Power: 12 W


EMI/RFI: meet FCC Part 15 Class A, EU EMC standard


Average time trouble-free: >100000 hours


SDI video format supports

625/25PAL;525/29.97NTSC;525/23.98NTSC; 720p50; 720p59.94; 1080P23.98/24/30/50/60; 1080i 23/24/30/50/59.94;




  • Intelligent HP monitoring & HD multiple-media system
  • Community safety & security HD multi-media system and campus network
  • Industrial monitering (power, chemical industry, steel, oil and railway etc.)
  • Military monitering (warehouse, border of defense and security guarding etc.)
  • HD multi-media system for transmission of TV programs
  • Stadium (HD audio & video synchronized transmission for live telecast)


Packaging & Shipping


Our Services

Our professional sales team and technology support team will answer all your questions and make sure our products meet your requirements. Also we offer long time after-service.

Company Information

Established in 2001& headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading video and fiber product manufacturer in China. Our main products include active equipments including fiber media converters, CCTV fiber converters, Telephone Fiber Mux, SFP transceivers, etc. And also we supply the fiber optical passive components like fiber patch cord, pigtail, adaptors & attenuators. With rich experience in providing high quality products in telecom and CCTV business, E-link has a large manufacturing base in Shenzhen, able to deliver cost-effective solutions to serve our customers successfully.

Product Quality:

• ISO9001 Quality System

• Full-Spectrum environment and electrical testing of all product design

• 48 hours aging test before delivery

• Qualified CE, RoHS, FCC

Product Advantage:

• Low cost

• Plug-and-play

• Build-in remote diagnostic capability

Since the launch of our products on the domestic market and international market, we have won a good reputation for our high quality products and sincere services. Our products are widely applied to network systems of Telecom, Radio and Television, Public Security, Bank , ect. To be in line with different needs of different customers, we have people to trace the latest market information so as to keep our products competitive and vital.

Our knowledgeable sales, technical support and engineering staff are dedicated to understanding your requirements and designing products & solutions to meet your needs. We shall be pleased to provide you fiber optical network products with our best price, superior quality and fast delivery.



1. What is the warranty on the parts you sell?
All parts sold by E-link China meet all of the manufactures specifications and carry one year warranty. Some customized products could carry up to three years warranty.
2. What payment methods do you offer?
We accept payment via T/T, Western Union, MoneyGram and PayPal;
3. What is your minimum order?
To achieve customers' satisfaction, we accept sample order, even one Piece.





Contact Us

E-link China Technology Co., Ltd.

Contact Person: Hubert Hu

Skype: elinkchina002

P/F: +86 755 83128674 

M: +86 186 82101319