10G DWDM SFP+ ER CH17-CH61 40km

Q、What are the types of 10G SFP+ optical modules?

A、Typically, SFP+ optical modules are categorized based on their practical applications, with common types including 10G SFP+, BIDI SFP+, CWDM SFP+, and DWDM SFP+.

10G SFP+ Optical Module This type of optical module serves as the standard SFP+ module and can be seen as an upgraded version of the 10G SFP module, representing the prevailing design in the current market.

BIDI SFP+ Optical Module This type employs wavelength division multiplexing technology, achieving a rate of up to 11.1Gbps with low power consumption. Equipped with two fiber ports, they are typically used in pairs, reducing the amount of fiber required during data center network construction and thereby lowering deployment costs.

CWDM SFP+ Optical Module Using coarse wavelength division multiplexing, this module is often paired with single-mode fiber, conserving fiber resources while offering greater flexibility and reliability in networking, along with low power consumption.

DWDM SFP+ Optical Module Adopting dense wavelength division multiplexing, this module is commonly used for long-distance data transmission, capable of reaching up to 80km in transmission distance, featuring high speed, large capacity, and strong scalability.

Q、What is the difference between SFP-10G-SR and SFP-10G-LR?

A、The answer is quite straightforward. SR stands for short range, whereas LR denotes long range. SR transceivers are mostly multimode, optimized for high-speed transmission over relatively short distances. However, higher-powered OM3 and OM4 formats can extend the transmission distance of a single cable to hundreds of meters.

LR transceivers are designed specifically for long-distance communication, such as interconnecting buildings across large campuses or establishing metropolitan area networks (MANs). They can be either multimode or single-mode and are almost always used for applications exceeding 100 meters. High-end cables and transceivers can support transmission over several kilometers.