Author - Irene

Introduction to RJ48 Cables

Hello, everyone! Today, I would like to share with you, Introduction to RJ48 Cables.   RJ Cable RJ abbreviated for the Registered Jack. It used as a medium in telecommunications or network interface. It enables network devices to connect voice and data equipment. It is mainly used to connect different types of data equipment...

The advantage of 10GE and the disadvantage of GE

Hello everyone! On the eve of the popularity of Wi-Fi 6 and the explosion of IoT applications, traditional gigabit networking cannot meet enterprises' requirements for high-speed, low-latency, and large-capacity networks. Therefore, after "100M optical fiber" and "Gigabit-to-desktop", campus networks have entered the 10G era. Looking back over the past decade,...

WiFi-Basics---Wi-Fi-Signal

WiFi Basics – Wi-Fi Signal

Hello, everyone! As a supplement to the ONT basic knowledge, I begin to introduce a series of basic Wi-Fi knowledge. Today, I will share knowledge about Wi-Fi signals. Wi-Fi signals are transmitted through radio waves; therefore, interference and attenuation are inevitable. The further away from a wireless router, the weaker the signals. Wi-Fi...

EDFA vs Raman amplifier

Hello, everyone! Today, I want to explain the difference between EDFA and Raman optical amplifiers. Long optical links require amplification of the signal. There are two types of amplifiers - EDFA and Raman. The question is what are the differences between these two amplifiers? And which amplifier should be applied? It...

Erbium-doped fiber amplifier(EDFA)

Hello, everyone! This post is dedicated to the Erbium-doped fiber amplifier(EDFA). I hope you're interested.   Working Principles of EDFAs Erbium-doped fibers are the key components of EDFAs and contain Er3+ ions of a certain concentration. Before illustrating the working principle of EDFAs, this course introduces the energy level diagram of erbium ions....

Cause analysis of the MA5680T unreachable by the NMS

Hi dear friends. Today, I will share a case about the analysis of OLT unreachable. The product: MA5680T Software version: MA5600 V800R018C10SPH221 Case Description An MA5680T of the user is unreachable by the NMS. The cause needs to be analyzed. Handling Procedure 1. Query faults on NMS. It is found that the MA5680T was unreachable twice on...

SmartAX EA5800-X2 Cannot ping the ONT

Hello everyone! Today, I'd like to share a case with you regarding an issue that a SmartAX EA5800-X2 cannot ping the ONT. Please see more information displayed below. Product model: SmartAX EA5800-X2. ISSUE DESCRIPTION Users fail to ping the ONT through the SmartAX EA5800-X2. ISSUE ANALYSIS 1. Verified the ARP table and the ARP entry was incomplete: 2. Logged in to the...

Analysis-of-LAN-MAN-WAN

Analysis of LAN/MAN/WAN

Hello everyone! Today I will share with you the related issues of LAN / MAN / WAN. 1. Basic concept of local area network (LAN) Definition of local area network: LAN is a communication network that interconnects various communication devices in a small area. There are three main technologies that determine...

Optical Module Encapsulation Types

Hello everyone! This post will introduce you to the optical module encapsulation types. I believe you are interested. SFP/eSFP Optical Module Small form-factor pluggable (SFP) optical modules are compact, hot-swappable, low-speed optical modules. They comply with the specifications defined in the multi-source agreement (MSA) and support synchronous optical network (SONET), Gigabit Ethernet...

The-difference-between-CWDM-optical-module-and-DWDM-optical-module

The difference between CWDM optical module and DWDM optical module

At present, WDM (Wavelength Division Multiplexing) technology is developing very rapidly, and has shown great vitality and bright development prospects. In the same optical fiber, two or more optical wavelength signals are transmitted through different optical channels at the same time, which is called optical wavelength division multiplexing technology, or...