4-Channel 3G-SDI Fiber Converter with RS485 & Tally
4-Channel 3G-SDI Fiber Converter Overview
The LNK-3GSDI-4V1DT series is a high-performance, four-channel HD/3G-SDI fibre optic extender
which transmits uncompressed, broadcast-quality video (1080p), RS485 data and tally signals over
a single fibre cable. This advanced 3G-SDI-to-fibre converter kit includes a transmitter and a receiver
and supports loop output, four-channel tally and bidirectional RS485, enabling seamless integration
into professional broadcast setups. Thanks to its ultra-low latency, high bandwidth and robust signal integrity,
it is the ideal solution for live productions and studio broadcasting.
4-Channel 3G-SDI Fiber Converter Features
The LNK-3GSDI-4V1N Series presents characteristics
► 4-channel 3G/HD-SDI video fiber transmission , supporting high-quality long-distance video signal transmission
► Automatic cable equalization ensures signal integrity over long distances
► Automatic reclocking function , supporting 270Mbit/s, 1.48Gbit/s and 3Gbit/s rates
► Plug and play compatible with 3G/HD-SDI camera systems , supporting 4-way loopback output
► Transmission distance up to 20 km (12.5 miles) , with longer distance options available
► Supports 4-way tally indication for easy multi-camera switching control
► Fully digital, uncompressed broadcast-grade transmission ensures zero image and audio loss
► Supports 1 reverse RS485 and 4 tally channels to meet various control needs
► Working temperature range: -10℃~+55℃ , adaptable to various working environments
4-Channel 3G-SDI Fiber Converter Technical Indexes
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SDI Input
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SMPTE 424M, SMPTE 292M, SMPTE 259M, DVB-ASI, DVB-SSI and Telecom/Datacom
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270Mbit/s - 1.48Gbit/s – 3Gbit/s
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Input number: 4
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Reflection loss: >15DB
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Equilibrium: 0-150m @3Gb/s
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Connector: BNC
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Optics
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Channel: 1
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Type: single-mode
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Transmission distance: 20km (Other distance Optional)
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Reflection loss: > 15dB
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Dithering: < 0.2UI
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Connector: FC/UPC (SC, LC, ST optional)
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SDI Output
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Output number:4
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Signal level: 800mV nominal
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Rise/fall time: 200ps indication
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Overshoot: < 10% amplitude
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Reflection loss: >15dB
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Dithering: < 0.2UI
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Connector: 75Ω BNC
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Data
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1Ch RS-485 (full/half duplex) and support NRZ, RZI and Manchester
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Max. 57600bps for RS485
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Connector: Industrial standard screw terminal
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4Ch Tally: A, B , C, D
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Power and environmental indication
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Operating temperature: -10℃～＋55℃
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Power Input: 1A@12VDC
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EMI/RFI: meet FCC Part 15 Class A, EU EMC standard
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Average time trouble-free: >100000 hours
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SDI video format supports
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625/25PAL; 525/29.97NTSC; 525/23.98NTSC; 720p50; 720p59.94;
1080P23.98/24/30/50/60; 1080i 23/24/30/50/59.94;
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4-Channel 3G-SDI Fiber Converter Ordering Information
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LNK-HDSDI-4V1D4T
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4-Ch HD-SDI Video with Loop output + 1Ch backward RS485 + 4Ch Tally, SM 20km, FC, including 1 transmitter & 1 receiver, used by pairs
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LNK-3GSDI-4V1D4T
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4-Ch 3G-SDI Video with Loop output + backward RS485 + 4Ch Tally, SM 20km, FC, including 1 transmitter & 1 receiver, used by pairs
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4-Channel 3G-SDI Fiber Converter Application
► Live events broadcast over fiber
► High performance(error-free) surveillance networks in Army or security;
► Large video wall system
► Intelligent Traffic Monitoring System
► Industrial monitoring (Electricity, Chemistry, Steel, Oil, Railway & etc)
► Military Monitoring (Warehouse, Border, Guards, etc)
► Stadium (For LIVE HD video, audio transmission)
After-Sales and Warranty Policy
It is composed of online customer service and telephone customer service,
providing product consultation, remote technical support, maintenance and acceptance services.
Service Policy: Three-month replacement and three-year warranty.
Replacement: Within three months of purchasing a series of products, after testing the product failure
by technicians and man-made damage caused by non-natural disasters, the purchaser can directly
go to the purchasing point to replace the same type of products.Or a product of comparable performance.
If there is no trouble in product testing, the original sample will be returned.
Warranty: Man-made damage caused by non-natural disasters, our company's free warranty period is 1 year.
[The following circumstances do not fall within the scope of replacement and free maintenance]
1.Damage caused by operation and maintenance not in accordance with the instructions in the product manual.
2.Damage caused by human factors, such as inappropriate voltage input, water intake and breakage.
3.Damage to products caused by natural disasters, such as lightning, earthquakes, fires, etc.
3.Unauthorized alteration of the inherent settings or repair without the company's permission.
4.Products beyond the scope of free maintenance.
5.Damage caused by transportation, loading and unloading during repairs sent by customers.
6.The product bar code or model on the product warranty card does not conform to the product itself.
7.Failure or damage caused by other non-product problems such as design, technology, manufacturing and quality.
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