Multi-user access unit

Abstract

The invention discloses a multi-user access unit, which is integrated with a downlink optical receiver, an uplink optical emitter, a duplex filter, an EOC module and an EPON-ONU module, wherein the downlink optical receiver receives and demodulates a radio frequency signal and transmits the demodulated radio frequency signal to a high-frequency port of the duplex filter; the uplink optical emitter receives a returned radio frequency signal transmitted by a low-frequency port of the duplex filter and outputs uplink optical waves; the high-frequency port of the duplex filter receives the radio frequency signal demodulated by the downlink optical receiver, while the low-frequency port returns the radio frequency signal to the uplink optical emitter and simultaneously transmits the radio frequency signal to the EOC module; the EOC module is connected with the duplex filter to transmit the radio frequency signal and is connected with a radio frequency signal interface of a building to transmit the radio frequency signal to the building; and the EPON-ONU module transmits the radio frequency signal and transmits the received radio frequency signal to the EOC module. If all available resources are well configured, the multi-user access unit can support 64 users, is suitable for a conventional solution for HFC network deployment between optical fibers and the building, transmits data signals on coaxial cables so as to increase the Internet access bandwidth of the user, saves cost on engineering wiring and reduces engineering and fund investment.

Description

Technical field [0001] The invention belongs to the field of optical fiber communication, and relates to a multi-user access unit, which is used for realizing optical fiber to the home, reducing the cost of network transformation, and serving users. Background technique [0002] In HFC (Hybrid Fiber-Coaxial, a hybrid network combining optical fiber and coaxial cable) network, the closer the optical cable is to the user, the greater the proportion of optical fiber transmission, that is, the fewer users served by the optical station, the better the network performance. The cost will increase. In particular, with the increase in the number of outdoor optical stations, the cost of installation and maintenance services has also increased significantly. [0003] In recent years, the cost of fiber optic cables and optical devices has dropped significantly, bringing optical fibers closer to users. RFoG (RF over Glass, optical fiber radio frequency) is the term for this new network struct...

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Problems solved by technology

[0006] Although the cost of optoelectronic devices and optical fibers has dropped significantly compared with ten years ago, the network transformation cost of fiber-to-the-home and the use of one R-ONU per household is relatively high compared to my country's national income level, and for my country's such Most residents in developing countries live in multi-storey or high-rise buildings, and the cost of network construction has increased

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