Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
Select a letter or use the search box to look up a term.
UPBO/DPBO Electrical Length
In VDSL2, the electrical length is used for a reference of UPBO/DPBO calculation instead of the real physical distance according to G.997.1 format. Depending on the cable type the line used and physical line length, you can calculate the electrical length (in dB). For example, the distance is 1 kilometer and you use 24 AWG cable type, the electrical length 20.5 dB is suggested to be used.