What is Power over Ethernet – PoE? What’s the difference between 802.3af and 802.3at (also known as PoE+)? All of the essential information about PoE modes, pinouts and voltages in a single article.

When setting up a reliable network, understanding the Ethernet and related standards is essential. This post covers key topics such as T568A vs T568B, the Category Rating System, UTP vs STP cables and also some tips for installing network cables.

Category 5, Cat5, Cat5e, Cat6, wiring diagrams both for straight through cables, crossover cables, token ring cables in RJ45. As a bonus learn how to build a Ethernet Economizer / Splitter.

In Angular the APP_INITIALIZER is designed for running asynchronous code during the application’s initialization phase – it waits for an observable or promise to complete before running code from your main app component. While this feature is quite useful, adding more than one APP_INITIALIZER will cause them to run in parallel, which makes it difficult to manage dependencies between them.