>> What is Power over Ethernet? 1. Introduction Power-over-Ethernet (PoE) or "Active Ethernet" eliminates the need to run 110/220 VAC power to Wireless Access Points and other devices on a wired LAN. Using Power-over-Ethernet...Read more »
Computer Networking
What is Power over Ethernet (PoE)?
>> What is Power over Ethernet? 1. Introduction Power-over-Ethernet (PoE) or "Active Ethernet" eliminates the need to run 110/220 VAC power to Wireless Access Points and other devices on a wired LAN. Using Power-over-Ethernet...Read more »
What is the Optical Layer in an Optical Network?
>> The Protocol Stacks The classic 7 layers OSI model view of networks needs some embellishment to handle the variety of networks and protocols that are proliferating today. A more realistic...Read more »
Second-Generation Optical Networks – A Brief Overview
>> The Advantages of Optical Networks 1. Flexible Bandwidth Delivery In addition to providing enormous capacities in the network, an optical network provides a common infrastructure over which a variety of services can...Read more »
What Is a Virtual LAN (VLAN) and IEEE 802.1Q?
>> What Is a Virtual LAN (VLAN)? A LAN is a local area network and is defined as all devices in the same broadcast domain. Here is a typical LAN structure....Read more »
Line Coding in Digital Communication
>> What is Line Coding? In telecommunication, a line code (also called digital baseband modulation, also called digital baseband transmission method) is a code chosen for use within a communications system for baseband transmission purposes....Read more »
The OSI Reference Model
What is OSI 7 Layer Model? In 1978, ISO developed an architecture that would allow the devices of different manufacturers to work together to communicate with different operating systems. In 1984, the ISO architecture became an...Read more »