Translation guide
ADSL is a type of broadband internet connection. In Japanese, it is almost always referred to by the acronym ADSL, pronounced エーディーエスエル.
Referring to the ADSL technology or an ADSL connection
The standard term, used in both technical and everyday contexts. Pronounced エーディーエスエル.
この地域ではADSLが使えますか？
Can I use ADSL in this area?
ADSLの速度は光回線より遅いです。
ADSL speed is slower than fiber optic.