Tolong jelaskan mengenai Eusi dari DVB dalam bahasa sunda

Besides audio and vidéo transmission, DVB also defines data connections (DVB-DATA - EN 301 192) with return channels (DVB-RC) for several media (DECT, GSM, PSTN/ISDN, satellite etc.) and protocols (DVB-IPTV: Internet Protocol; DVB-NPI: network protocol independent).

Older technologies such as teletext (DVB-TXT) and vertical blanking interval data (DVB-VBI) are also supported by the standards to éase conversion. However for many applications more advanced alternatives like DVB-SUB for sub-titling are available.