receive. Synchronization of the right be used for the last mile from the same user time slot is carried out in the ONT. access node. 2.2 Active Optical Networks (AONs) 3. AON vs. PON 3.1. Bandwidth AON is a point-to-point network The trend towards increasing bandwidth structure (PTP), i.e. each subscriber has continues unabated. Due to the launch their own fiber optic line that is of TV-over-IP (IPTV) there is no sign of terminated on an optical concentrator the increase in bandwidth tailing off, in (Access Node [AN]). fact quite the opposite. Because of the recent launch of (HDTV) and other technically complex services Such as online gaming, network operators are being encourage to outdo one another by providing more and more bandwidth. The following table compares PON and AON transmission bandwidth. This type of AN can be designed differently, depending on specific locations. Usually Metro IP-Edge routers or Access Nodes (MSANs) with optical Ethernet interfaces are used in this case. The Fiber optics can be terminated by an ONT here too, but also by any Ethernet switch or IP router with an optical uplink interface. If the last mile to the subscriber is to be bridged using copper wire, DSLAMs or other MSANs are used. When MSANs are used, both copper and optical lines can
receive. Synchronization of the right user time slot is carried out in the ONT. 2.2 Active Optical Networks (AONs) AON is a point-to-point network structure (PTP), i.e. each subscriber has their own fiber optic line that is terminated on an optical concentrator (Access Node [AN]). This type of AN can be designed differently, depending on specific locations. Usually Metro IP-Edge routers or Access Nodes (MSANs) with optical Ethernet interfaces are used in this case. The Fiber optics can be terminated by an ONT here too, but also by any Ethernet switch or IP router with an optical uplink interface. If the last mile to the subscriber is to be bridged using copper wire, DSLAMs or other MSANs are used. When MSANs are used, both copper and optical lines can be used for the last mile from the same access node. 3. AON vs. PON 3.1. Bandwidth The trend towards increasing bandwidth continues unabated. Due to the launch of TV-over-IP (IPTV) there is no sign of the increase in bandwidth tailing off, in fact quite the opposite. Because of the recent launch of (HDTV) and other technically complex services Such as online gaming, network operators are being encourage to outdo one another by providing more and more bandwidth. The following table compares PON and AON transmission bandwidth.
46858531-Optical-Access-Network.docx