Fiber Connector Basics

At present, in terms of fiber access network technology, narrowband access is gradually replaced by broadband access, and finally fiber-to-the-home is realized. Broadband fiber-optic access networks are inevitable, and PON technology will become a technology hotspot for future broadband access networks due to its multi-service, low-investment, and easy-to-maintain features.

The optical fiber connector

What is a fiber access network?

Optical fiber access network refers to the access network in which the transmission medium is optical fiber. Optical fiber access network can be divided into two categories technically: Active Optical Network (AON, Active Optical Network) and Passive Optical Network (PON, Passive Optical Network).

Active optical network can be divided into SDH-based AON and PDH-based AON;

Passive optical network can be divided into narrowband PON and broadband PON.

What is the role of access network in network construction?

The information network consists of a core backbone network, a metropolitan area network, an access network and a customer premises network. The access network is a bridge between the metropolitan area network and the backbone network.

At present, science and technology are advancing by leaps and bounds, and a large number of electronic documents are constantly being produced. With the economic globalization, the acceleration of the social informatization process, the popularization of the Internet, the rapid growth of data services, and the continuous expansion of the types of telecommunication services, which have expanded from a single telephone service to multiple kind of business. The narrowband access network has become a bottleneck restricting the development of the network towards broadband. The access network market has a large capacity. In order to meet the needs of users, new technologies are constantly emerging. The access network is the focus and key of the development of the national information infrastructure, and the network access technology has become the focus and investment focus of research institutions, communication manufacturers, telecommunication companies and operation departments.

Advantages of PON

1. It can provide transparent broadband and low-cost transmission capabilities.

2. Compared with the active optical network, its installation, opening and maintenance operation costs are low, and the system is more reliable and stable, so the access network is using a large number of PON systems.

3. Because PON adopts the point-to-multipoint access mode, the infrastructure cost of laying optical fibers between the central office and the users is borne by the users, which can improve the return on investment in network construction. Compared with the method of configuring end-to-end optical fibers for each user, the PON equipment that improves services for the same number of customers is smaller in size and occupies less space in the central office.

4. PON supports both traditional services (traditional telephone service POTS, analog TV) and broadband services (IP voice transmission, IPTV, broadband Internet access, etc.).

5. PON supports all residential users (using POTS, analog TV and data services) and many commercial users (using T1/E1 and Ethernet services) to share an access network (including physical layer and protocol layer) without using different access networks. Access networks serve them separately, thus reducing the number of fragmented access networks.

With the advancement of network technology and the popularization of broadband services, optical fiber access is becoming more and more common, and pipeline and optical cable resources cannot be expanded without restrictions. The use of PON technology saves a lot of optical cable resources and effectively solves this problem.