E-link China Technology Co., Ltd.

E-link China Technology Co.,Ltd.
Professional Fiber Optical Communication and CCTV Security Transmission Product Manufacturer


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E-link China Technology Co., Ltd.

Good quality Industrial Ethernet Media Converter for sales
Good quality Industrial Ethernet Media Converter for sales
The engineer solved our problem very quick, and the service is very good. Very professional factory.

—— Robert Lichtenstein-Canada

I had no concern, was buying and testing, so equipment is ok. So equipment and logistic is ok, we keep ordering and making business.

—— Anek – Thailand

I'm very satisfied with the media converter received, the OEM order quality is good.

—— Faize Akçaba-Turkey

E-link Sales are very professional, they give me not only product, but also solution. All E-link Fiber Media Converters and PoE Switches works well.

—— Patrícia Maia-Brazil

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100M Ethernet Sdi Audio To Optical Fiber Converter 4Ch Forward 3G SDI Backward

China 100M Ethernet Sdi Audio To Optical Fiber Converter 4Ch Forward 3G SDI Backward supplier

Large Image :  100M Ethernet Sdi Audio To Optical Fiber Converter 4Ch Forward 3G SDI Backward

Product Details:

Place of Origin: Shenzhen, China
Brand Name: E-link China
Certification: CE, RoHS, FCC
Model Number: LNK-3G- 4FV1BV1E1A2D1C

Payment & Shipping Terms:

Minimum Order Quantity: 1 pair
Price: Negotiation
Packaging Details: 1 pair in 1 carton box
Delivery Time: 3-5 working days
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 1000000000pairs/Month
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Detailed Product Description
1CH Backward 3G-SDI: Support 1CH 100M Ethernet: Support
1CH BiDirectional Audio: Support 1CH Bi-Directional RS485: Support
1CH Bi-Directional RS232: Support

4Ch Forward 3G SDI + Backward 3G SDI + 100M Ethernet + Audio SDI to Fiber Optic Converter

Model: LNK-3G-4V Series


The advanced LNK-3G-4V Series support optical transmission of non-compressed 3G-SDI, HD-SDI or SD-SDI signal format through one single mode optical fiber. LNK-3G-4V Series can simultaneously transmit 4-Ch 3G-SDI Video, 1/2-Ch Audio, 1/2-Ch Data RS-232/422/485, 1/2-Ch Contact Closure/Switching Value, and 1-Ch Ethernet signal through a single optical fiber. Engineered for reliability and exceptional high resolution image performance, it uses E-link’s exclusive all digital technology, and also includes a host of features for enhancing A/V system integration.




  • 4CH 3G-SDI video with embedded audio over one fiber
  • Range from 19.4Mb/s to 2.97Gb/s
  • SMPTE 424M (2.97Gb/s) clock recovery
  • Support all SMPTE 295M standard, 143Mb/s - 360Mb/s
  • Support SMPTE 305M (SDTi), SMPTE 310M (19.4Mb/s), SMPTE 344M (540Mb/s), M2S and DVB-ASI (270Mb/s) standard
  • Output wavelength 1310nm, 1550nm and 16 types of CWDM (ITU-T G.694.2 compliant)
  • 150m automatic cable equalization, all the 1.485 Gb/s rate below(Belden 1694A)
  • LED status indicators monitor the critical parameters
  • Support hot swap
  • Support stand-alone, 1U rack mount and 4U rack mount




  • Remote OB Van/Truck Video Feeds
  • Broadcast Studio Camera Feeds
  • Long-haul Signal Transport
  • TV station/video conference
  • Lecture Hall Projector Connectivity
  • Medical/Surgical Room Broadcast
  • Building to Building video conference calling
  • Small corporate campus video links




Technical Indexes

3G-SDI Video Input
Standards: SMPTE 424M, 292M, 259M, 297M, 305M, 310M,
other Telecom/Datacom rate (19.4Mb/s – 2.97Gb/s)
Input Channel: 4CH
Reflection loss: >15DB
Equilibrium: 0-100m @ 2.97Gb/s
Connector: 75Ω BNC
3G-SDI Video Output
Output Channels: 4CH
Signal level: 800mV nominal
Overshoot: <10% amplitude
Reflection loss: > 15dB
Jitter: < 0.1UI
Connector: 75Ω BNC
Balanced 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
Asynchronous data
Interface type RS-485/422/Manchester/RS-232
Operational mode Full-duplex/half-duplex
Communication speed 300~9600Kbps
Bit error rate <1*10-9
Connector: Screw Terminal Block
Switching Value/Contact Closure
Input Signal Any passive or active alarm, Switch Value Input, Support TTL, RS-232/422/485 or passive switch or button
Output Signal Any passive or active alarm, Switch Value Input, Support TTL, RS-232/422/485 or relay contact output
Connector: Screw Terminal Block
Number of channel: 1


IEEE 802.3/802.3u


IEEE 802.1q VLAN

IEEE 802.3x full duplex flow control and Back-Pressure half-duplex flow control

Operational mode: 10/100M full duplex/half duplex self-adaptation
Throughput rate: 100%@100M
Packet loss rate: 0
Ethernet Connector: RJ45
Optical Fiber
Fiber Core: 1-Core Fiber
Type: SMF (Single Mode Fiber)
Wavelength: 1310nm/1550nm
Transmission Distance: 20KM
Reflection loss: > 15dB
Jitter: < 0.1UI
Connector: FC/PC(SC/PC optional)
Operating temperature: -25℃~+70℃
Storage temperature: -40℃~+80℃
Relative humidity 0~95%(non condensable)
Power: 110~220V AC
EMI/RFI: FCC Part 15 Class A, EU EMC standard
Average time trouble-free: >100000 hours
Stand alone Dimension: 483(L)×185 (W)×178(H) mm
Weight 5Kg
rack mount 4U
Regulatory Approvals
FCC part 15, Class A
EN55022:2006+A1: 2007 Class A
Surge Protection:



Contact Details
E-link China Technology Co., Ltd.

Contact Person: Hubert Hu

Tel: +8618682101319

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