Mini-type 3G-SDI to Fiber Converter with Tally & Reverse RS485
Mini 3G-SDI Fiber Converter with Tally Signals Overview
The LNK-M3G-1V Series represents a compact yet high-performance fiber conversion system specifically engineered for professional broadcast and video production environments. This mini-type converter enables seamless transmission of 1-channel 3G/HD-SDI video signals with embedded audio, tally data, and bidirectional RS485 communication over single-mode or multimode fiber optic cables.
As a complete E-link fiber optic transmission solution, the system comprises matched transmitter and receiver units that work in tandem to deliver uncompromised 1080p video quality across extended distances. The integrated 3G/HD-SDI loop-through output provides local monitoring capability without signal degradation, while the robust fiber optic infrastructure ensures immunity to electromagnetic interference and ground loop problems commonly encountered in traditional copper-based video systems.
Ideal for broadcast studios, live event production, and surveillance applications, this converter maintains signal integrity throughout the transmission chain. The compact form factor allows for flexible deployment in space-constrained racks or mobile production setups, providing broadcast engineers with a reliable and scalable solution for high-definition video transport over fiber optic networks.
Mini 3G-SDI Fiber Converter with Tally Signals Features
- Multi-Channel Audio Embedding Capability
Each transmission channel supports up to 8 embedded audio tracks, enabling synchronized audio-video signal processing for professional broadcast applications and multimedia system integration.
- Advanced Signal Conditioning Technology
Features automatic cable equalization compatible with data rates up to 3.2 Gb/s, ensuring signal integrity over extended copper cable runs using standard Belden 1694A or equivalent coaxial cables.
- Intelligent Signal Recovery System
Incorporates automatic reclocking technology that regenerates and stabilizes input signals across multiple standards from 270Mbit/s to 3Gbit/s, eliminating jitter and timing errors for broadcast-quality transmission.
- Seamless Camera System Integration
Designed for direct compatibility with professional SDI camera systems, providing plug-and-play operation without requiring additional signal converters or interface modules.
- Extended Fiber Optic Transmission
Enables long-distance signal transmission up to 80 kilometers while maintaining original signal quality, making it suitable for remote production setups and distributed video networks.
- Hot-Swap Operation Capability
Supports hot swapping and hot plugging of units without system shutdown, allowing for maintenance and configuration changes during live production without interrupting broadcast operations.
- Broadcast-Grade Signal Processing
Handles all pathological test patterns with full digital non-compression technology, ensuring broadcast-level transmission quality that meets professional industry standards.
- Comprehensive Status Monitoring
Integrated LED status indicators provide real-time monitoring of power, signal lock, fiber link integrity, and data transmission status for quick troubleshooting and system management.
- Auto-Adjusting Optical Interface
Features superior optical dynamic range with automatic adjustment capability, eliminating the need for manual optical power calibration across varying transmission distances.
- Wavelength Division Multiplexing Support
Optional CWDM wavelength configurations between 1470~1610nm, enabling multiple signal transmission over a single fiber strand for efficient fiber infrastructure utilization.
- Industrial Temperature Range Operation
Built to operate across an ultra-broad temperature range from -20℃ to +70℃, ensuring reliable performance in challenging environmental conditions from outdoor broadcasting to industrial monitoring applications.
Mini 3G-SDI Fiber Converter with Tally Signals Technical Indexes
| Fiber Optical interface |
| Fiber interface |
Simplex LC |
| Transmission distance |
550m-20Km |
| Wavelength |
1310nm/1550nm |
| Video |
| Video interface |
BNC |
| Video input/output impedance |
75Ω |
| Video input/output voltage |
Typical:1Vpp, Min 0.5Vpp, Max 1.5Vpp |
| Video Bits Rate |
Max 3.2Gb/s |
| Differential gain (10%～90% APL) |
<1% |
| SDI format support |
625/25 PAL |
| 525/29.97 NTSC, 525/23.98 NTSC |
| 720p50, 720p59.94 |
| 1080i 23/24/30/50/59.94 |
| 1080P 23.98/24/30/50/60 |
| Video SDI standard |
270Mbps (SD-SDI), 1.485Gbps/M(HD-SDI) |
| SMPTE425M3Gb/s Mapping(3G-SDI) |
| SMPTE424M 3Gb/s serial interface(3G-SDI) |
| Data |
| Physical interface |
Industrial standard screw terminal |
| Data type |
Tally & Reverse RS485 |
| Frequency/Rate support |
Max. 115200bps for RS422
Max. 57600bps for RS485
|
| BER |
<10ˉ9 |
| Electrical |
| Power adaptor |
DC 5V |
| Power consumption |
<5W |
| LED Indicator |
| SDI |
SDI video |
| P/T |
Power Supply |
| Mechanical |
| Dimensions (LxWxH) |
73 x 44 x 17 mm (TX)
73 x 44 x 17 mm (RX)
185 x 132 x 100 mm (Package)
|
| Weight |
75g (TX)
75g (RX)
450g (Package)
|
| Casing |
Aluminum Case |
| Mounting Options |
Desktop |
| Environmental |
| Working Temperature |
-20℃～+70℃ |
| Storage Temperature |
-40℃～+80℃ |
| Working Humidity |
0~95% |
| MTBF |
≥100000 hours |
Mini 3G-SDI Fiber Converter with Tally Signals Ordering Information
| Model |
Description |
| LNK-M3G-1V-MM |
Mini-type 3G-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, MMF, LC Fiber Connector 500 meters, including Transmitter and Receiver, used by pairs |
| LNK-M3G-1V-20 |
Mini-type 3G-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, SMF, LC Fiber Connector 20KM, including Transmitter and Receiver, used by pairs |
| LNK-M3G-1V-40 |
Mini-type 3G-SDI to Fiber Converter with Tally & Reverse RS485 and loop out, SMF, LC Fiber Connector 40KM, including Transmitter and Receiver, used by pairs |
Mini 3G-SDI Fiber Converter with Tally Signals Application
- Live Broadcast & Outside Broadcasting (OB) Operations
Enables reliable long-distance HD video transmission for live sports production, remote event coverage, and multi-camera field production systems. Supports real-time embedded audio and tally signal transmission over single-fiber CWDM links, ideal for temporary fiber infrastructure and mobile production trucks.
- Broadcast Studio & Production Facility Interconnects
Provides studio-quality signal distribution between control rooms, master control switchers, and camera positions via fiber backbone networks. Ensures pathological pattern compliance and jitter-free reclocking for mission-critical broadcast signals in 24/7 operating environments.
- Large-Venue & Stadium Video Systems
Facilitates ultra-long-haul video transport up to 80 km for distributed video displays, jumbotron feeds, and in-venue broadcast networks. Withstands extreme temperature variations while maintaining frame-accurate synchronization across multi-zone video distribution systems.
- Professional Broadcast & Content Contribution Links
Supports broadcast-grade uncompressed video for contribution networks, news gathering backhauls, and inter-facility signal transport. Enables camera control over reverse RS485 and program return feeds via bidirectional fiber optic pathways.
- Critical Infrastructure & Remote Monitoring Setups
Delivers industrial-temperature hardened performance for transportation surveillance, utility monitoring, and security command centers. Provides hot-swappable module replacement for non-stop operation in restricted-access installation environments.
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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