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PDH Line Terminal
PDH stands for Plesiochronous Digital Hierarchy, which is capable of transmitting ETH and E1 services on an optical fiber substrate with a bandwidth of 155 Mbps to 1.25 Gbps, and this device is used in telecommunications on optical fiber, which is 1 unit in size and capable of It is also used for standard 19-inch racks. The PDH device is used in the fiber optic terminal line and has one or more serial ports, an EOW port, and is capable of transmitting 8-16-32 E1 channels and 4 Ethernet channels, which can send on fiber. They also provide functions such as vlan-snmp-802.1Q to different models.
Terminal line application
Optical fiber terminal lines are mainly used to transfer data and telephone lines between telecommunications centers and organizations and companies that need to receive services from telecommunications.
Transferable services with line terminals
It is possible to transfer any type of data, including internet, intranet – ptmp-mpls-vpls-lines-E1 lines…
Different models of PDH terminal line
155m 8E1 + 4 ethernet (provides the ability to transmit 8 channels of Ivan along with 4 Ethernet ports on optical fiber. The maximum transmission capacity is one stm1 or about 150 Mbps)
155m-16E1+4EThernet (provides the ability to transmit 16 Evan channels along with 4 Ethernet ports on optical fiber. The maximum transmission capacity is one stm1 or about 150 Mbps)
1.25G-8E1+4EThernet (provides the ability to transmit 8 channels of Ivan along with 4 Ethernet ports on optical fiber. The maximum transmission capacity is 1.25 per second)
1.25G-16E1+4EThernet (provides the ability to transmit 16 Evan channels along with 4 Ethernet ports on optical fiber. The maximum transmission capacity is 1.25 per second)
Line terminal manufacturing companies
Various companies in the world have started to produce optical fiber terminal line, mainly Chinese companies are the main manufacturers of these manufacturers, and since April 1996, the technology application development company with the commercial brand Arivant started the production line of this equipment in the country.
Fiber optic terminal line failure
Considering that these products are one of the main parts of a transmission system, they are usually produced with high quality and sensitivity, but since the stability of the input power of the device is important, most of the problems are caused by power, which is recommended from companies that have a production line. If there is a problem, he will be responsible for making the purchase.
