Views: 0 Author: LIN Publish Time: 2024-04-15 Origin: szlianbai
In the optical network, ONU (Optical Network Unit) and ONT (Optical Network Terminal) are two different devices used to connect end users to the optical fiber transmission network.
ONU is an optical network unit in an optical network. It is usually located closer to the user. It is responsible for converting optical fiber signals into electrical signals and transmitting data to terminal devices, such as computers, phones or routers. ONU usually consists of optical modules, switches, interfaces, etc., and is connected to OLT (Optical Line Terminal) through PON (Passive Optical Network) technology.
ONT is the terminal equipment in the optical network, usually located indoors or outdoors of the user, and is responsible for connecting with the user's terminal equipment. ONT generally includes optical modules, interfaces and user ports. It receives signals transmitted from ONU and converts them into a form that can be recognized by terminal equipment, such as Ethernet, telephone lines, etc.
In short, ONU is located at the protocol end of the network architecture and plays the role of optical transmission and electrical signal conversion, while ONT is the device that connects user terminal equipment.
In practical applications, because the functions and positions of ONU and ONT are complementary, the two terms are sometimes mixed or used instead. However, understanding the differences between them can still help to better understand the architecture and device connections of optical networks.
