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How to select the 100G LR4 Optical module: Details about the technology and application scenarios

How to select the 100G LR4 Optical module: Details about the technology and application scenarios

Oct 18, 2024

Optical modules play a vital role in today's network infrastructure, especially when data transmission rates and stability requirements are getting higher and higher. For enterprises that require high-performance connections, 100G LR4 optical modules have become the first choice in data centers and enterprise networks. However, facing different types of optical modules on the market, how to choose the right 100G LR4 optical module is a problem that requires technical understanding and application scenario matching.

 

This article will give you a detailed introduction to the technical specifications, application scenarios and key factors to consider when choosing 100G LR4 optical modules, helping you make a more informed choice.

 

1.What is a 100G LR4 optical module?

 

The 100G LR4 optical module is a high-performance optical fiber communication module that complies with the IEEE 802.3ba standard and is designed for long-distance transmission over single-mode optical fiber. It mainly transmits data in parallel on four different wavelengths through WDM (wavelength division multiplexing) technology, thereby achieving a transmission rate of up to 100Gbps.

 

Main technical specifications:

 

Transmission rate: 100Gbps

 

Transmission distance: up to 10 km (single-mode fiber)

 

Wavelength: 1270nm, 1290nm, 1310nm, 1330nm

 

Package type: QSFP28

 

Interface type: LC duplex interface

 

This module is very suitable for long-distance, high-speed data transmission needs, especially in large-scale data centers, enterprise core networks and cloud computing platforms.

 

2. Core advantages of 100G LR4 optical modules

 

When selecting 100G LR4 optical modules, it is crucial to have a deep understanding of its core technical characteristics. The following points are particularly worthy of attention:

 

High data transmission rate: 100G QSFP28 LR4 optical modules support a data transmission rate of 100Gbps, which can meet the needs of data centers and high-speed networks for large-capacity data transmission.

 

Wavelength support: The operating wavelength range is 1295nm to 1310nm, supporting LAN WDM technology, transmitting multiple signals of different wavelengths through a single optical fiber, and improving data transmission efficiency.

 

Digital diagnostic function: Supports DDM (digital diagnostic monitoring) function, which can monitor the working status of the optical module in real time, simplify maintenance work, and improve system reliability.

 

Miniaturized design: The QSFP28 LR4 optical module adopts QSFP28 packaging, which is small in size, convenient for high-density wiring in a limited space, and optimizes the space utilization of the data center.

 

Support hot plugging: The QSFP28 LR4 optical module supports hot plugging function, which can be inserted or unplugged without turning off the power of the device, improving the flexibility of use and the convenience of maintenance.

 

Compatibility and reliability: The 100G LR4 optical module must not only comply with industry standards, but also ensure seamless connection with various network devices. When choosing, users should focus on its compatibility with existing switches and routers, especially with mainstream brands such as Cisco, Juniper, and Huawei. At the same time, the reliability of the module should not be ignored, ensuring that it has undergone rigorous compatibility and quality testing.

 

3. Application scenarios of 100G LR4 optical modules

 

With its excellent data transmission capabilities, 100G LR4 optical modules shine in several key areas:

 

Cloud service providers: Cloud service providers need to handle a large amount of data traffic, and 100G QSFP28 LR4 optical modules can be used to build cloud data centers to support large-scale data processing and storage needs.

 

Enterprise networks: Large enterprises may have their own data centers or need to transmit large amounts of data between offices in different locations. 100G QSFP28 LR4 optical modules can be used for high-speed connections and data transmission in these enterprise networks.

 

Internet service providers (ISPs): Internet service providers can use 100G QSFP28 LR4 optical modules to build or upgrade their network infrastructure to provide faster Internet connection services and meet growing bandwidth needs.

 

4. Key factors for selecting 100G LR4 optical modules

 

When selecting 100G LR4 optical modules, in addition to technical specifications, the following factors should be considered comprehensively:

 

Equipment compatibility: Ensure that the selected optical module is perfectly compatible with existing network equipment, especially the matching degree of brand and model. Selecting compatible optical modules can effectively avoid subsequent compatibility issues and reduce maintenance costs.

 

Transmission distance requirements: According to the actual situation of the network layout, reasonably evaluate the required transmission distance. If the distance between network nodes exceeds 10 kilometers, other types of optical modules, such as 100G ER4 (transmission distance up to 40 kilometers), need to be considered.

 

Wavelength and fiber type: Ensure that the type of fiber used (such as single-mode fiber) matches the wavelength of the 100G LR4 optical module. At the same time, combined with the existing fiber resources, evaluate whether the fiber infrastructure needs to be further expanded.

 

Cost and budget: Although the 100G LR4 optical module provides excellent data transmission performance, its price is relatively high. Therefore, it is necessary to select the right supplier and product based on the budget and actual needs.

Geistiges Eigentum, High-Tech-Unternehmen
Geistiges Eigentum, High-Tech-Unternehmen
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