Two or three godinebrzi development of the global broadband market , not only the rapid growth in the number of broadband users , but user demand for access bandwidth as video on demand , the emergence of online games and high-bandwidth IPTV service further significant increase to the existing ADSL - based broadband access is difficult meet users' high - bandwidth , two-way transmission capacity and security requirements . Faced with this dilemma , the attention of countries re- invest in FTTH plans to use the fiber by far the best access to the transmission medium to break the " bottleneck " for better blueprint for the old people think FTTH Connection.
Method FTTH broadband access is more appropriate for some services and applications have been or are about to occur , and these new services and applications over existing ADSL / LAN and other broadband access methods , including video telephony , video conferencing , video on demand , IPTV , online games , distance education / health . These new companies , especially HDTV and HD video on demand and interactive TV services generally require high bandwidth symmetric bidirectional support or require support for broadcast / multicast transmission , and the original ADSL / LAN access restrictions due to transmission distances and transmission speeds difficult to meet the demand for these services far distance transmission and high bandwidth access . In particular , much attention is currently