Solutions for EPON technology access

We will introduce all kinds of solutions for implementing EPON technology access. Many may not be familiar with EPON technology access. It does not matter. After reading this article, you will certainly have a lot of GAINS, I hope this article will teach you more things.

Currently, the 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 needs, and the cost of network transformation is high.

As a radio/TV network operator, how to build a new access network is capable of carrying out multiple services and has the potential for network expansion is a matter of serious consideration in the 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 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 access network.

As an emerging 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, the architecture of the EPON technology 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 technology network is good, it can be well integrated with existing networks. The EPON technology provides the above advantages while having 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: Provides normal Internet access to ensure 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 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.

Pon odn Network Solution

The OLT of the Project Center is installed in the residential area. Therefore, a optical splitter is used for one split. The beam splitter adopts the method of ground burial or the optical fiber transfer box in the residential area, in the installation box of the building, configure the number of fiber cores according to the quantity of ONU3346 configured for the building, and configure two fiber cores for each ONU3346 (1 core for main use and 1 core for backup ). For multi-building buildings, the two buildings should share one ONU3346 and use fiber cables to connect to building 1. The fifth type of lines in Building 2 will be directly delivered through pipe.

ONU Deployment Scheme

In the initial stage, the goal is to provide customers with data access services, and in the later stage, the goal is to provide IPTV and IP value-added services. In line with practical and economic principles, FTTB is planned to be deployed using Shengli ONU3346, fiber to the building, using wall-mounted head case, built-in ONU3346, ONU3346 out of 5 lines to the user's home. ONU3346 is the 24FE interface user end, which is a high-density economic user end.

Extended Access Solution

The EPON technology system has good scalability. As long as you add Optical Splitter/board devices and other devices for the current network planning of the residential area, you can easily and quickly expand the network, it does not affect existing services. For example, for this solution, some high-end customers in the residential area can provide FTTH (optical fiber to the household) access and rapid access to peripheral customers (only need to deploy Optical Fiber between the optical splitter and the user ). As there are no specific requirements, this scheme does not design and configure this method for the time being. You can plan it after further communication as required.

Features and advantages

The SALIRAEPON technology platform can fully achieve the design goal of the data access network, which is very suitable for the needs of this solution. The above network design shows the main advantages of the EPON technology as a data access solution: the logical structure of the point-to-point network topology is a star connection, that is, each ONU is directly connected to the local device to avoid unbalanced network structure, compared with traditional point-to-point or ring-based networks, it has higher access and expansion capabilities.

It can save a lot of trunk optical fibers and reduce investment. From the management perspective, a central management system is used to manage the entire network, avoiding the disadvantages of poor management capabilities and separate management of traditional access networks. At the same time, it can be managed to The ONU terminal port, it provides great convenience for maintenance and troubleshooting.

From the perspective of maintenance, passive optical networks use passive devices, greatly reducing network fault points and supporting facilities of peripheral data centers. From the perspective of network construction, the use of the EPON technology platform can achieve phased investment, and gradually expand during the operation process, without wasting any resources and increasing the ROI. From the perspective of competition in the carrier market, with the help of the SALIRA2000 platform, operators can quickly and flexibly meet user needs.