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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HD-SDI CWDM Optical SFP Transceiver 1270–1610nm 20km SMF DDM
Overview
The LNK-CWDM-SFP1G-XX20 is a compact HD-SDI CWDM optical transceiver designed for
professional video transport over single-mode fiber up to 20km. Supporting 18 CWDM channels
across 1270–1610nm, it ensures stable 1.485Gbps signal transmission while handling pathological
SDI patterns with ease. Its hot-pluggable SFP design, integrated diagnostics, and low power profile
make it an ideal solution for broadcast, video routers, and high-density camera systems.
Features
Supports 50 Mbps to 1.485 Gbps transmission rates
Extends HD-SDI video over SMF up to 20km
Fully compliant with SMPTE 259M, 292M, 344M standards
Handles SD/HD-SDI pathological patterns for reliable broadcast
Available in 18 CWDM wavelengths (1270–1610nm)
Hot-pluggable SFP MSA design with LC duplex connector
Built-in Digital Diagnostic Monitoring via I²C
Operates from 0°C to +70°C with low power consumption
Technical Indexes
| Standards: | INF-8074i SFP (Small Form factor Plug gable) Transceiver |
| SFF-8472 Diagnostic Monitoring Interface for Transceiver | |
| SMPTE 259M-2008 SDTV Digital Signal/Data Serial Digital Interface (SD-SDI) | |
| SMPTE 292M-2008 1.5 Gbps Signal/Data Serial Interface (HD-SDI) | |
| SMPTE 344M-2000 540 Mbps Serial Digital Interface | |
| Part Number | LNK-CWDM-SFP1G-XX20 |
| Form Factor | Video SFP Transceiver |
| Data Rate | 1.485 Gb/s |
| Wavelength | 1270~1610nm |
| Fiber Type | SMF |
| Max. Distance | 20 km |
| Optical Components | DFB/PIN |
| Transmitter Power | -9~-3 dBm |
| Extinction Ratio | >9dB |
| Receiver Sensitivity | < -24 dBm |
| Receiver Overload | >-3 dBm |
| Connector | Duplex LC |
| Digital Diagnostic Monitoring (DDM) | Support as default |
| Weight | 0.025Kg |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Application | SMPTE 292M (1.485Gb/s) |
| SMPTE 259M (270/360Mb/s) | |
| HD-SDI/SD-SDI Fiber Converter | |
| High-density digital video routers & switches | |
| Broadcast cameras, HD Camera or Monitor System | |
| MTBF | > 200,000 hrs |
Ordering Information
| Model | Description |
| LNK-CWDM-SFP1G-2720 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1270nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-2920 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1290nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-3120 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1310nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-3320 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1330nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-3520 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1350nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-3720 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1370nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-3920 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1390nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-4120 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1410nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-4320 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1430nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-4520 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1450nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-4720 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1470nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-4920 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1490nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-5120 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1510nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-5320 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1530nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-5520 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1550nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-5720 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1570nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-5920 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1590nm, 20km, LC, DDMI, MSA |
| LNK-CWDM-SFP1G-6120 | 1.5Gb/s SDI CWDM SFP Video Optical Transceiver, 1610nm, 20km, LC, DDMI, MSA |
Application
