{"id":4249,"date":"2023-04-23T09:31:42","date_gmt":"2023-04-23T09:31:42","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=4249"},"modified":"2023-04-24T02:07:53","modified_gmt":"2023-04-24T02:07:53","slug":"optical-access-network-differences-between-olt-odn-onu","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/optical-access-network-difference-between-olt-odn-onu.htm","title":{"rendered":"Optical Access Network: What is the Difference Between OLT, ODN and ONU?"},"content":{"rendered":"

In our daily life, we get news, use social software and shop online through access networks, which are all devices between the backbone network and the user terminal. With the progress of technology and the increasing amount of IP services in the network, optical access network technology has gradually become the key to the development of access networks.<\/p>\n

FTTC (Fiber To The Curb), FTTB (Fiber To The Building), and FTTH (Fiber To The Home) are all types of optical access network applications that are widely used today.<\/p>\n

\"Optical<\/p>\n

Let’s get to know the three “O’s” of optical access network: OLT, ODN, and ONU.<\/p>\n

ONU (Optical Network Unit) is a client device in optical network; ONU provides data, IPTV (Internet Protocol Television), voice (Integrated Access Device), and other services.<\/p>\n

ODN (Optical Distribution Network) is an optical cable network based on PON<\/span><\/a> equipment; ODN provides optical transmission channels for OLT and ONU.<\/p>\n

OLT (Optical Line Terminal) refers to the terminal equipment used to connect fiber optic trunk lines; network element management, security management, configuration management, and bandwidth allocation can be realized on the OLT.<\/p>\n

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