4-Channel Telephone with 4 Physically Isolated Wire-Speed Ethernet Dual Gigabit Telephone Optical Terminal Manufacturer

The IDM GTD442 dual-gigabit telephone optical terminal is a new-generation optoelectronic integrated transmission device launched by our company, based on high-speed fiber optic transmission technology and PCM technology. It integrates Ethernet transmission and PCM multi-service access functions, meeting users' requirements for fiber optic transmission and access of various broadband and narrowband services. The IDM GTD442 telephone optical terminal is a fiber access device with multiple configurations, providing fiber multiplexing of Ethernet, telephone, and serial interfaces, and is interoperable with IDM GP2000 series optical interface devices. The fiber interface rate of the IDM GTD442 is 2.5G, providing 2 wire-speed 1000M Ethernet channels, each with 1 electrical port GE and 1 optical port GX; it also provides 18 E1 bandwidth transmission channels. The IDM GTD442 telephone optical terminal provides up to two groups of fiber interfaces on the line transmission interface, forming redundant optical ports, or chain networks, ring networks, etc. On the user interface, it provides 4 groups of Ethernet interfaces, 4 telephone channels (central office, remote, magneto, two-wire audio), 2 RS485 or 1 RS422 channels. The Ethernet interfaces can be configured in physical isolation or VLAN isolation modes. The dual-gigabit telephone optical terminal can be widely applied in private networks such as public security, electric power, railway, and mining, as well as public network fields including mobile, Unicom, and telecom operators. If you are interested in this telephone optical terminal device, please contact Raytrans

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