• July 19. 2018

QSFP+ have Single-mode and multimode, it means QSFP+ optical module works on different types of fiber optic, the single-mode QSFP + use with single mode fiber, and the multimode QSFP + used with multimode fiber. Then what are the differences between them? Where are they applied? What should we pay attention to when we use them? In this article, we will discuss this topic. Optical module difference...

• July 12. 2018

As we all know, currently the mainstream optical communication transmission rate is 40G and 100G on the market, their competition is also fierce. Today we will list some common questions in 40G networks. What are the common solutions for 40G networks? At the core of the 40G network layer, a pair of optical modules are usually connected at both ends of a multimode optical fiber such as OM3 or OM4(M...

• June 23. 2018

ETU-Link will take part in the largest and most influential ICT seminar in Asia's, namely Communic Asia 2018, the exhibition will be held on June 26-28, 2018 at the Marina Bay Sands Exhibition Center in Singapore. Exhibition information: 【Exhibition time】26-28 June, 2018 【Exhibition place】Marina Bay Sands Singapore 【Booth No.】1B2-01 ETU-Link is a high-tech company base in Shenzhen, we mainly focus...

• January 17. 2018

In data center interconnection, enterprise networking, and optical communication systems, optical module monitoring and compatibility are critical. The SFF-8472 MSA standard defines Digital Diagnostic Monitoring (DDM) for optical transceivers, enabling real-time status monitoring, fault location, and multi-vendor interoperability. This article shares key definitions, parameters, functions, and app...

• September 29. 2017

Many network engineers and buyers struggle with one question: Can SFP modules work in SFP+ ports? Can SFP+ work in SFP ports? What compatibility rules should I follow? This article gives you clear answers, compatibility principles, speed limitations, switch vendor differences, and safe usage rules to avoid connection failures. I. Can SFP Modules Be Plugged into SFP+ Ports? The SFP optical module c...

• August 23. 2017

The PON optical transceiver is a high performance optical module for the PON system, also known as the PON module, conforms to the ITU-T G.984.2 standard and the MSA. It uses different wavelengths to send and receive signals between the OLT (optical line terminal) and the ONT (optical network terminal). Classification of PON optical modules: 1. According to the package type: SFF/SFP/SFP+ and XFP o...

• May 17. 2017

Gigabit optical interface modules are fundamental components in modern fiber optic communication and data center interconnection. When customers inquire about gigabit interface modules, SFP is the mainstream choice today, while GBIC was once the dominant standard. This article explains their definitions, differences, and why SFP has replaced GBIC, with reference to industry standards and market da...

• December 30. 2019

There are single-fiber and dual-fiber optical transceivers. How do we choose, and what are their differences and advantages? Let’s learn about this! What is a Single-Fiber (BiDi) Transceiver? Single fiber module also called BiDi transceiver or WDM module. It uses WDM technology to realize the bidirectional transmission of optical signals on one optical fiber. BIDI module only has 1 port, wave...