Comparison: ADSL vs VDSL vs Fiber Optic Internet
The wired access technology develops from digital subscribe line (xDSL) to optical access (PON, Ethernet Optical Access) now. Optical access is occupying the market of broadband access. Why? What’s the difference between ADSL, VDSL and fiber optic Internet? In this article, let’s explore xDSL and optical fiber access networks together! Part I. What is ADSL, VDSL, and Fiber Optic Internet? 1. ADSL ADSL refers to the Asymmetric Digital Subscriber Line. It’s still a common type of broadband access, which works via standard cabling. The speed of ADSL is not reliable enough, which depends