The type of terminal where fixed network users access the Internet

ONU: full name Optical Network Unit, optical network unit, commonly known as ONU, using PON passive optical fiber access technology, transmission medium for optical fiber, is a large-scale mainstream access mode of global telecom operators, with the advantages of low cost, high bandwidth and low latency, No power maintenance required, and easy management.

EOC: full name Ethernet Over Cable, Ethernet data through Coaxial cable transmission, Based on cable TV coaxial cable use Ethernet protocol Access technology, the highest bidirectional bandwidth of 100M, radio and television access mode. In the early stage, radio and television operators adopted the one-way to send service users to receive them passively, and the EOC technology evolved in the two-way transformation of cable TV network, using EPON + EOC terminal network and connected to the user EOC through coaxial cable. Due to the constraints of bandwidth and cost and other factors, now radio and television operators have gradually adopted PON technology for transmission, such as Shenzhen Topway has wired optical fiber in the new building.

CM: full name Cable Modem, cable modem, commonly known as coaxial onu, through the cable TV coaxial cable for data access equipment, radio and television access mode, the front-end using CMTS management system. Cable Modem converts uplink digital signal (IP) to analog radio frequency signal (R F) for transmission, and downlink converts analog radio frequency signal (RF) into digital signal (IP) for reception. Cable Modem is mainly used by radio and television operators (the highest bandwidth of Shenzhen Topway CM access is 100M). Due to the constraints of bandwidth and cost factors, this access mode is also being phased out.

ADSL: full name Asymmetric Digital Subscriber Line, asymmetric digital user line, commonly known as electric onu, the early operators used the access mode, using frequency division technology, transmission media for the telephone line, the low frequency signal transmission and high frequency signals separation, is a high-speed data transmission technology on the ordinary telephone line. Unable to meet the needs of high-speed network access and high cost, it is gradually replaced by PON technology.

Shenzhen HDV Photoelectron Technology Ltd. is a professional ONU/ONT equipment manufacturer is also intelligent communication ONU module manufacturer, our company currently sells a variety of upper and down communication equipment, such as, Fiber Media Converter, Ethernet switch, OLT equipment, ONU equipment and so on. If you want to know more about communication technology, welcome to contact us at any time.