How ASUS DSL-AC55U modem and Distribution box should be connected for My first DSL Internet installation in Germany? | O₂ Community
Asus DSL-AC55U manual (English - 130 pages)
ASUS DSL-AC55U AC1200 Wireless Dual-Band VDSL/ADSL 2+ Gigabit Modem Router, Annex A/B/I/J/L/M, USB Ports for 3G/4G Support, Media/FTP Server (Filter Included) : Amazon.co.uk: PC & Video Games