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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4-Channel 3G-SDI Fiber Extender with Backward RS485 & 4Ch Tally 20KM FC Connector
4Ch 3G SDI Video Over Fiber Extender Advantages
► 4 channel 3G-SDI video transmission over optic fiber
► Directly compatible with HD-SDI camera systems
► SLong transmission capability at least 20 km (40~80km Optional)
► Support 1-Channel RS485 and 4-Channels Tally
4-Channels 3G SDI Fiber Transmitter Receiver Technical Indexes
| SDI Input | SMPTE 424M, SMPTE 292M, SMPTE 259M, DVB-ASI, DVB-SSI and Telecom/Datacom |
| 270Mbit/s - 1.48Gbit/s – 3Gbit/s | |
| Input number: 4 | |
| Reflection loss: >15DB | |
| Equilibrium: 0-150m @3Gb/s | |
| Connector: BNC | |
| Optics | Channel: 1 |
| Type: single-mode | |
| Transmission distance: 20km (Other distance Optional) | |
| Reflection loss: > 15dB | |
| Dithering: < 0.2UI | |
| Connector: FC/UPC (SC, LC, ST optional) | |
| SDI Output | Output number:4 |
| Signal level: 800mV nominal | |
| Rise/fall time: 200ps indication | |
| Overshoot: < 10% amplitude | |
| Reflection loss: >15dB | |
| Dithering: < 0.2UI | |
| Connector: 75Ω BNC | |
| Data | 1Ch RS-485 (full/half duplex) and support NRZ, RZI and Manchester |
| Max. 57600bps for RS485 | |
| 4Ch Tally: A, B , C, D | |
| 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; |
3G-SDI Optical Fiber Transceiver
1. Tally Connections
|
| T-A | T-B | T-C | T-D | GND |
| LED Type | SDI-A | SDI-B | SDI-C | SDI-D | GND |
Receiver TALLY Signal Input Connection: (LED load type is only suitable for OC derive LED - driver)
|
| A | B | C | D | VDD |
| LED Type | SDI-A | SDI-B | SDI-C | SDI-D |
2. RS485 Connections
| GND | D+ | D- |
4 Channels 3G-SDI Over Fiber Transmitter Receiver Ordering Information
| Model | Description |
| LNK-HDSDI-4V1D4T | 4-Ch HD-SDI Video with Loop output + 1Ch backward RS485 + 4Ch Tally, SM 20km, FC, including 1 transmitter & 1 receiver, used by pairs |
| LNK-3GSDI-4V1D4T | 4-Ch 3G-SDI Video with Loop output + backward RS485 + 4Ch Tally, SM 20km, FC, including 1 transmitter & 1 receiver, used by pairs |