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USD 10.00 ~ 12.00
Min. Order:1 Piece/Pieces
Model No:GL-G8011U-HZ
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,30pcs in one carton
Supply Ability:50000
What is the difference between ONT and ONU? An ONT can be understood as an ONU (Optical Network Unit), but in a strict sense it is a part of the ONU. The difference between the two is that the ONT is an optical network terminal and is located...
USD 27 ~ USD 31
Brand:GL-COM
Model No:GL-G8007U-SR
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,10pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000
Gpon Ont 4GE WIFI POTS Voip/fxs Port Ont What is GPON? GPON (Gigabit-Capable PON) technology is the latest generation of broadband passive optical integrated access standard based on the ITU-TG.984.x standard. It has many advantages such as high...
USD 53 ~ USD 59
Brand:GL-COM
Model No:GL-G8007U-SRWF
Transportation:Ocean,Land,Air,Express
Packaging:1pc in one gift box,10pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000/month
With the continuous and rapid development of the Internet and the popularization of personal computers, various value-added multimedia and IP services have proliferated. FSAN is trying to find a flexible, programmable, high-speed, high-efficiency,...
USD 53 ~ USD 59
Brand:GL-COM
Model No:GL-G8007U-SRWF
Transportation:Ocean,Land,Air,Express
Packaging:1pc in one gift box,10pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000/month
What are the advantages of GPON WIFI CATV 1POTS GEPON WIFI ONU? GPON 2.4G+5.0G WIFI GPON ONU networking is convenient. Only one OLT (optical network terminal) needs to be modulated in the central office room, separated by optical fiber splitters....
USD 27 ~ USD 31
Brand:GL-COM
Model No:GL-G8007U-SR
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,30pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000
What are the integration levels of the triple play? Triple play is a broad and social term. At this stage, it does not mean the physical integration of the three major networks of telecommunication network, computer network and cable television...
USD 41 ~ USD 43
Brand:GL-COM
Model No:GL-G8007U-SRWF
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,30pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000
What is triple play? Triple play is a broad and social term. At this stage, it does not mean the physical integration of the three major networks of telecommunication network, computer network and cable television network, but mainly refers to the...
USD 10 ~ USD 15
Brand:GL-COM
Model No:GL-G8011U-HZ
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,30pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000
What is this POTS port? The voice interface is used to connect to a fixed line. If the fixed line is activated, you can make a call by simply connecting.which means this POTS/VOICE/VOIP/FXS port is used for telephone. Product introduction: It is...
USD 41 ~ USD 43
Brand:GL-COM
Model No:GL-G8007U-SRWF
Transportation:Ocean,Land,Air
Packaging:1pc in one gift box,10pcs in one carton
Supply Ability:50000
Place of Origin:China
Productivity:50000
PON system The PON system structure is mainly composed of the optical line terminal (OLT: Optical Line Terminal) of the central office, the optical distribution network (ODN: Optical Distribution Network) containing passive optical components, and...
The story of Ethernet began in the ALOHA period. The exact time was after a student named Bob Metcalfe received a bachelor's degree from the Massachusetts Institute of Technology and moved to Harvard University across the river to pursue a PhD. During his studies, he came into contact with Abramson's work, and he was very interested in it. After graduating from Harvard, he decided to stay in Hawaii for vacation before going to Xerox Palo Alto Research Center to work in order to help Abramson work. When he arrived at the Palo Alto Research Center, he saw that researchers there had designed and built machines that would later be called personal computers, but these machines were solitary; he used the knowledge he gained to help Abramson work with his colleague David Boggs designed and implemented the first local area network. The local area network uses a long thick coaxial cable and runs at a rate of 3Mbps.
They named this system Ethernet, and people once thought that electromagnetic radiation could be transmitted through it.
Shared medium
The Carrier Sense Multiple Access (CSMA/CD) technology with collision detection specifies a method for multiple computers to share a channel. This technology first appeared in the ALOHAnet developed by the University of Hawaii in the 1960s, which uses radio waves as a carrier. This method is simpler than token ring network or main control network. When a computer wants to send information, it switches between the following actions and states:
Start-If the line is idle, start the transmission, otherwise skip to step 4.
Send-If a conflict is detected, continue to send data until the min echo receive interval is reached to ensure that all other transponders and terminals detect the conflict, and then skip to step 4.
Successful transmission-report to the higher-level network protocol that the transmission was successful, and exit the transmission mode.
Line is busy-keep waiting until the line is free.
Line is idle-before reaching the maximum number of attempts, go to step 1 to try again at random intervals.
Exceeded the maximum number of transmission attempts-report the transmission failure to the higher layer network protocol, and exit the transmission mode.
Because all communication signals are transmitted on the shared line, even if the information is only sent to one of the terminals (destination), it will be sent to all computers on the line in the form of broadcast. Under normal circumstances, the network interface card will filter out the information that is not sent to itself, and will send an interrupt request to the CPU when it receives the information whose destination address is its own, unless the network card is in Promiscuous mode. This "one talk, everyone listen" characteristic is the security weakness of the shared medium Ethernet, because a node on the Ethernet can choose whether to listen to all the information transmitted on the line. Sharing cables also means sharing bandwidth, so in some cases the speed of Ethernet may be very slow, such as after a power failure, when all network terminals are restarted.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.