ONU, also known as Optical Network Unit, commonly known as Optical Cat, adopts PON passive fiber optic access technology with fiber optic transmission medium. It is currently a large-scale mainstream access method for global telecommunications operators, with advantages such as low cost, high bandwidth, low latency, passive maintenance free, and easy management.
EOC: Full name Ethernet Over Cable, Ethernet data is transmitted through coaxial cables. It is based on the access technology of Ethernet protocol used in cable TV coaxial cables, with a maximum bidirectional bandwidth of 100M. It is an access method adopted by radio and television. In the early days, radio and television operators used a one-way broadcasting method to send services to users for passive reception. In the subsequent bidirectional transformation of cable television networks, EOC technology was evolved, using EPON+EOC office networking, which was connected to the user end EOC through coaxial cables. Due to factors such as bandwidth and cost constraints, radio and television operators are gradually adopting PON technology for transmission, such as Shenzhen Tianwei, which has already installed fiber optic cables in new buildings.
CM: Cable Modem, the full name of which is Cable modem, commonly known as coaxial cat. It is a device for data access through the coaxial cable of cable TV. It is the access method used by radio and television. CMTS management system is used in the front end. The Cable Modem converts the upstream digital signal (IP) into an analog radio frequency signal (RF) for transmission, while the downstream converts the analog radio frequency signal (RF) into a digital signal (IP) for reception. Cable Modem is mainly used by radio and television operators (Shenzhen Tianwei CM has a maximum bandwidth of 100M), but due to factors such as bandwidth and cost constraints, this access method is also gradually being phased out.
ADSL: Asymmetric Digital Subscriber Line, commonly known as E-Cat, is an access method adopted by early operators. It uses frequency division technology and the transmission medium is telephone line. It separates low-frequency signals and high-frequency signals transmitted by ordinary telephone lines. It is a high-speed data transmission technology on ordinary telephone lines. Unable to meet the demand for high-speed network access and high cost, it is gradually being replaced by PON technology.
Shenzhen Haidiwei Optoelectronics is a professional manufacturer of ONU optical cat equipment and intelligent communication ONU optical cat module. Our company currently sells various communication equipment with up and down connections, such as fiber optic transceivers, Ethernet switches, OLT optical cat equipment, ONU optical cat equipment, and so on. If you would like to learn more about communication technology knowledge, please feel free to contact our company.