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China CWDM SFP Transceiver: High-Quality Optical Solutions from Reliable Suppliers and Factory
Ordering information
| P/N | Description | Data Sheet | Data Rate | Wavelength | Distance | Output Power (dBm) | Sensitivity (dBm) | Connector | Temp.(℃) | Laser Type |
|---|---|---|---|---|---|---|---|---|---|---|
| ESCxx12-40D | SFP CWDM | DOWNLOAD | 1.25G | 1270~1450nm | 40km | -5~0 | <-24 | LC | 0~70 | CWDM+PIN |
| ESCxx12-80D | SFP CWDM | DOWNLOAD | 1.25G | 1470~1610nm | 80km | 0~5 | <-26 | LC | 0~70 | CWDM+PIN |
| ESCxx12-C0D | SFP CWDM | DOWNLOAD | 1.25G | 1470~1610nm | 120km | 1~5 | <-32 | LC | 0~70 | CWDM+APD |
Frequently Asked Questions
What is the main application of these SFP CWDM transceivers?
These SFP CWDM transceivers are designed for Gigabit Ethernet and Fiber Channel optical data communications over single-mode fiber. They utilize Coarse Wavelength Division Multiplexing (CWDM) technology to expand bandwidth capacity on existing fiber infrastructures without deploying new fiber cables.
What is the difference between PIN and APD receivers in these models?
The ESCxx12-40D (40km) and ESCxx12-80D (80km) models utilize a PIN photodetector, which is ideal for standard optical power levels. The ESCxx12-C0D (120km) model uses a highly sensitive APD (Avalanche Photodiode) receiver, which provides superior sensitivity (<-32 dBm) required to detect weak signals over extreme long-distance transmissions.
Do these SFP modules support Digital Diagnostics Monitoring (DDM)?
Yes, the "D" suffix in the part numbers (e.g., ESCxx12-40D) indicates full support for Digital Diagnostics Monitoring (DDM), also known as Digital Optical Monitoring (DOM). This feature allows network administrators to monitor real-time parameters such as transceiver temperature, laser bias current, transmitted optical power, and received optical power.
What connector type and fiber type are compatible with these transceivers?
All these SFP CWDM modules feature a Duplex LC connector interface. They are designed for operation over standard Single-Mode Fiber (SMF) patch cables and infrastructure.
Are these CWDM SFP transceivers hot-swappable?
Yes, they are fully hot-pluggable (hot-swappable). You can install or remove the modules from any SFP-compliant port without powering down the host switch or router, ensuring uninterrupted network operations.
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