الشبكات

Introduction Power over Ethernet (PoE) has reshaped modern networking by delivering both power and data through a single cable - simplifying deployments for access points, IP cameras, phones, sensors, and smart-building systems. But as enterprise devices grow more po...

Patch cables and crossover cables are both twisted-pair Ethernet leads with RJ-45 (8P8C) connectors—but they’re wired differently and therefore used in different situations. This guide gives you clean wiring tables, quick “when to use” rules, modern notes on Auto-MDI/MDI-X, and deployment checklists so you can stop ...