1U Rack-Mountable 8-Channel SD/HD/3G-SDI over Single Fiber CWDM Uncompressed Extender
SDI Fiber Extender Overview:
The LNK-SDI-8V Series represents an advanced fiber optic
transmission solution engineered for high-density broadcast and
professional video applications. This 1U rack-mountable system
incorporates CWDM (Coarse Wavelength Division Multiplexing)
technology to simultaneously transmit eight independent
SD/HD/3G-SDI video channels over a single optical fiber, maximizing
bandwidth efficiency while minimizing infrastructure costs.
Our uncompressed fiber extenders maintain pristine
broadcast-quality video signals throughout transmission, supporting
full 1080P resolution with complete compliance to SMPTE standards
(424M, 292M, 259M). Each channel features local loop-through
monitoring outputs, enabling real-time signal verification without
interrupting the primary transmission path. The integrated CWDM
architecture provides exceptional wavelength stability and optical
performance, ensuring reliable operation in demanding environments.
Beyond multi-channel video transmission, this comprehensive
solution incorporates a dedicated reverse RS-485 data channel for
bidirectional device control, supporting PTZ camera operations,
robotic systems, and remote equipment management. The system
delivers CD-quality audio transmission with perfect synchronization
to video signals, meeting professional broadcast requirements for
lip-sync accuracy and audio fidelity.
Specifically designed for broadcast facilities, live event
production, and mission-critical video distribution networks, this
rack-mountable extender provides complete electrical isolation and
superior immunity to electromagnetic interference. The robust 1U
chassis design offers space-efficient integration into standard
equipment racks, making it an ideal solution for television
studios, sports venues, and security operations centers requiring
high-density SDI signal extension with uncompressed quality and
reliable performance.
Features
Advanced Signal Processing Technology
High-Density Optical Multiplexing
Intelligent System Monitoring
Extended Transmission Performance
Robust Power Design
Seamless System Integration
Maintenance-Optimized Operation
Environmental Durability
Application Scenarios
Broadcast Facility Infrastructure
Enables multi-camera signal aggregation in television broadcast centers, supporting studio camera feeds and production video routing through CWDM multiplexing technology over single-fiber backbone networks.
Live Event Production Systems
Facilitates high-density video distribution for mobile production trucks and temporary event venues, transmitting multiple camera angles to production switchers with uncompressed signal quality and frame-accurate synchronization.
Sports Broadcasting Networks
Supports stadium video systems by distributing multi-angle camera signals from venue positions to central production rooms, maintaining 3G-SDI signal integrity across extended fiber runs up to 120km.
Corporate AV Integration
Enables boardroom presentation systems and distance learning networks to distribute multiple HD sources to display processors and recording systems with bidirectional camera control capabilities.
Security Monitoring Centers
Integrates high-definition surveillance networks with PTZ camera control, supporting multi-camera monitoring across distributed facilities while operating in industrial temperature ranges.
Government Command Centers
Provides mission-critical video distribution for situation awareness displays, ensuring signal redundancy and 24/7 operation in secured communication environments.
Technical Indexs
| 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 | Reverse RS485 |
| Frequency/Rate support | Max. 57600bps for RS485 |
| BER | <10ˉ9 |
| Electrical |
| Power adaptor | AC 110~220V |
| Power consumption | <15W |
| LED Indicator |
| SDI A/B/C/D/E/F/G/H | SDI video |
| PWR | Power Supply |
| Mechanical |
| Dimensions (LxWxH) | 19inch 1U (483 x 220 x 44.45mm ) |
| Weight | 7KG/pair |
| Casing | Aluminum Case |
| Mounting Options | Rackmount |
| Environmental |
| Working Temperature | -20℃～+70℃ |
| Storage Temperature | -40℃～+80℃ |
| Working Humidity | 0~95% |
| MTBF | ≥100000 hours |
Ordering Information
| Model | Description |
| LNK-SDI-8V | 19" 1U 8-Ch HD-SDI Video with Loop-out, 20km, SM, LC, including 1
transmitter & 1 receiver, used by pairs |
| LNK-SDI-8V1R | 19" 1U 8-Ch HD-SDI Video with Loop-out + 1-Ch RS485 Reverse Data,
20km, SM, LC, including 1 transmitter & 1 receiver, used by pairs |
| LNK-SDI-8V1A | 19" 1U 8-Ch HD-SDI Video with Loop-out + 1-Ch Forward Audio, 20km,
SM, LC, including 1 transmitter & 1 receiver, used by pairs |
| LNK-3GSDI-8V | 19" 1U 8-Ch 3G-SDI 1080P Video with Loop-out, 20km, SM, LC,
including 1 transmitter & 1 receiver, used by pairs |
| LNK-3GSDI-8V1R | 19" 1U 8-Ch 3G-SDI 1080P Video with Loop-out + 1-Ch RS485 Reverse
Data, 20km, SM, LC, including 1 transmitter & 1 receiver, used by
pairs |
| LNK-3GSDI-8V1A | 19" 1U 8-Ch 3G-SDI 1080P Video with Loop-out + 1-Ch Forward Audio,
20km, SM, LC, including 1 transmitter & 1 receiver, used by pairs |
Application Display Diagram
