1. AP, wireless router, transmits network signals through twisted pairs. Through AP's compilation, it converts electrical signals into radio signals and sends them out.
2. ONU (Optical Network Unit) optical network unit. PON network equipment, PON uses a single optical fiber to connect to the OLT, and then the OLT is connected to the ONU. ONU provides data, IPTV (Interactive Internet Television), voice and other services. The PON port here refers to the port on the OLT. One PON port corresponds to one optical splitter. PON (Passive Optical Network) passive optical network. The PON port generally refers to the downstream port of the OLT and is connected to the optical splitter. The upstream port of the ONU can also be called the PON port. Optical modem refers to a fiber optic modem, and all fiber optic user-end conversion equipment can be collectively referred to as optical modem. Modulation is to convert digital signals into analog signals transmitted on telephone lines, and demodulation is to convert analog signals into digital signals, collectively called a modem. We use telephone lines to transmit analog signals, while PCs transmit digital signals. Therefore, when connecting to the Internet through a telephone line, you must use a modem.
3. ONT (Optical Nerwork Unit) optical network equipment, equivalent to ONU. It is an optical network device used at the user end. The difference is: ONT is an optical network terminal, located directly at the user end, while ONU is an optical network unit, and there may be other networks between it and the user, such as Ethernet. CeitaTech's ONU/ONT products can be used as ONU/ONT products or as routers. One product has multiple uses.
4. OLT (optical line terminal) optical line terminal, terminal equipment used to connect optical fiber trunk lines. Functions: (1) Send Ethernet data to the ONU (Optical Network Unit) in a broadcast manner, (2) Initiate and control the ranging process and record the ranging information, (3) Allocate bandwidth to the ONU, that is, control the start of the ONU sending data. start time and sending window size. A network connected between the central office equipment (OLT) and the user equipment (ONU/ONT) through an optical distribution network (ODN) composed of passive optical cables and optical splitters/combiners.
5. Optical fiber transceiver is an Ethernet transmission media conversion unit that exchanges short-distance twisted pair electrical signals and long-distance optical signals. It is also called a photoelectric converter (Fiber Converter) in many places. . The product is generally used in actual network environments where Ethernet cables cannot cover and optical fiber must be used to extend the transmission distance, and is usually positioned in the access layer application of broadband metropolitan area networks; helping to connect the last mile of fiber optic lines to metropolitan area networks and On the outer network.
Post time: Mar-09-2024
