Integrated solution for EPON Optical Fiber Access Network

The optical fiber access network is still quite common. So I have studied the comprehensive solution of the EPON optical fiber access network. I will share it with you here, hoping it will be useful to you. At present, the optical fiber access network is facing a series of technological and business model revolutions and challenges. Changes in user business needs and Industry Integration bring about new competition, traditional Telecom operators use ADSL or LAN access. However, traditional methods cannot meet new business requirements and the cost of network transformation is high.

As a radio/TV network operator, how to build a new type of optical fiber access network is capable of carrying out multiple services and has the potential for network expansion is a matter of serious consideration in current network construction. Only by building a basic network that can meet future multi-business needs can we gain development opportunities in the new market competition environment. At present, there are two directions for the development of communication networks. One is that the transmission layer shows the development trend of all-optical networks. From the ASON technology on the core layer to the FTTP technology on the access layer, there is no indication that the evolution of network bearer to light; in addition, service integration is based on IP addresses. The development of Internet makes IP addresses the most ideal service bearer protocol, MSTP, RPR, MPLS, and other technologies are not the result of mutual reference and integration between traditional transmission networks and packet switching networks. The rapid development of IPTV and VoIP also shows the development direction of IP bearer. The network construction of the access network system should grasp the development trend of technology and market, and select a reasonable technology to build the optical fiber access network.

As an emerging fiber-optic access network technology, EPON is very suitable for FTTB/FTTH construction. From the operator's perspective, passive features can reduce construction, management, and operation costs, increasing the return on investment and new profit opportunities; the architecture of the EPON network is very suitable for access network construction, so that operators can quickly and effectively carry out business and facilitate network expansion; the high bandwidth provided by E-PON will meet the user's demand for increasing network bandwidth and ensure reliable network resources for operators to carry out multiple services. The compatibility of EPON network is good, it can be well integrated with existing networks. while providing the above advantages, EPON also has unparalleled economics with other FTTx technologies, which can reduce investment and long-term construction costs.

Requirement Description

Deploy a data access network in a residential area to provide data access services at the initial stage. At the same time, it prepares for IPTV. When the time is ripe, it provides IPTV services to customers and high-quality network services. A total of 248 buildings, including 690 residential units, were built in seven standard sections in the residential area, with a total of 9108 households. There are also several commercial, school, and government buildings. In the initial stage, we will first provide broadband Internet services for users. In the later stage, we will need to carry out IPTV, VoIP and other value-added data services. This plan mainly takes into account the access of households, and the commercial, school, and institution will be adjusted based on actual conditions in the future.

This network can provide sufficient bandwidth for high-quality data access services and IPTV streaming media services. Networks must have excellent scalability and upgrade capabilities to effectively support the three-in-one business needs in the future. Services supported by the optical fiber access network include Internet access, which provides common Internet access and sufficient bandwidth for browsing pages, uploading and downloading, and other common applications. VoIP: Future-oriented NGN, providing network telephone services. IPTV/VOD: supports various unicast or multicast video services, including IPTV services and VOD services in PC or set-top box mode.

Residential broadband access network solution

This solution uses SALIRA2550OLT and SALIRA3300 series ONU to build residential broadband. the system fully guarantees and comprehensively considers reliability, standard applicability, security, scalability, SLA & QoS, and manageability, this platform is used to effectively implement data access and IP-based voice, data, and video services.

Network Topology

A total of 248 buildings, including 690 residential units, were built in seven standard sections in the residential area, with a total of 9108 households. There are also several commercial, school, and government buildings. Due to the large number of residential buildings, this scheme mainly takes into account the access of households. The access problems of businesses, schools, and authorities in the future can be adjusted according to the actual situation.

Local OLT configuration Scheme

Considering the large number of users in the residential area, this design uses the SALIRA telecom-level central station device OLT2550, which is a 10U design with a plug-in structure and is planned to be installed in the Central Data Center of the residential area. 28 downstream PON optical ports and 28 upstream GE ports are available in full configuration. The OLT can provide a maximum access capacity of 28 Gbps. This satisfies the needs of broadband access and subsequent IPTV services in the residential area.