LonRise Equipment CO.,LTD

The QSFP-40G-LR4 is a type of hot-swappable transceiver module used for data transmission over fiber optic cables in telecommunication networks. Here's a breakdown of its key features:

Type: QSFP+ Transceiver Module
Data Rate: 40 Gigabit Ethernet (40GBase-LR4)
Reach: Up to 10 kilometers over single-mode fiber (SMF)

Functionality:

The QSFP-40G-LR4 transmits data using four different wavelengths (lanes) of light at 10 Gigabit Ethernet (10GbE) per lane, combining for a total of 40 Gbps [1, 2].
It utilizes Coarse Wavelength Division Multiplexing (CWDM4) technology to multiplex and demultiplex the separate wavelengths onto a single fiber optic cable [2].
Applications:

Data center interconnections
Enterprise core networks
Metro networks
Advantages:

Cost-effective solution for long-distance data transmission compared to 40 Gigabit Ethernet transceivers over copper cables [2].
Hot-swappable design enables easy installation, maintenance, and upgrades without powering down network devices.