Apon technology and the apon system of the Beacon company

Definition and advantages of apon

In the access technology, passive optical Network (PON) technology has low relative cost, large capacity, wide coverage, long life, high reliability, and can be upgraded smoothly, and become the future development direction. The transmission of information in the form of ATM signaling in Pon is referred to as atm-pon or abbreviation apon. For users and network operators, Apon has all the advantages of PON, which has great advantages in transmission quality and maintenance cost. Second, it provides a full service access capability and increased bandwidth utilization, can provide flexible business access interface to meet the needs of different users, but also ensure good business scalability. In addition, the most prominent feature of APON is the use of the most mature and QoS-guaranteed multi-service, multi-bit rate integrated ATM transmission, the advantages of ATM statistical multiplexing in the dynamic bandwidth allocation of PON has been fully reflected

Beacon company Apon full service network access transmission system

Beacon Company keenly aware of the full service network access system is a broad market prospects of an advanced integrated access platform, from the beginning of 1998 to apply for and obtain the commitment to develop a "full service network access system" 863 planning tasks, of which the key technology with innovative and fully independent intellectual property rights.

System basic structure and function

Beacon company Apon Access System, follow g.983 recommendations. Using the symmetric code rate of the upper and the downlink lines 155.52/155.52mbit/s, the optical distribution network uses the passive optical network pon of the double star topology structure, the single fiber WDM duplex mode, the transmission range reaches dozens of kilometers. With compact structure and flexible configuration. The system is mainly composed of olt equipment, remote equipment ont, ONU, according to its different position in the network, function and scale are not the same. Olt mainly realizes three functions: Business interface function, multiplex/cross connection, ODN interface function. Through 155MATM interface, 2MB/S Circuit simulation interface to complete broadband and narrowband service access. ONU is different from the conventional access network system, multiple ont share a olt optical interface. ONU mainly implements PON interface processing, filtering multiplexing processing and user interface processing. User interface processing to provide users with ATM interface, circuit emulation interface or Ethernet interface, such as a variety of business types of interface cards.

Key Technologies

The implementation of apon involves many aspects of the technology, in the Olt to onu down the direction of the use of Time Division multiplexing mode, to broadcast the way to each ONU. The uplink signal of ONU to Olt adopts advanced optical Time division Multiple Access technology, the key lies in high precision ranging technology, high speed burst receiving technology, dynamic bandwidth allocation algorithm--Medium accessing control protocol. The full service network access system utilizes the modern integrated circuit technology and the digital signal processing technology, provides the unified transmission platform, the multiple service characteristic and the flexible broadband transfer ability.

System Application

Full-service network access system is a remote access system, can provide including olt and ont seamless connection, including a full range of solutions. From the operator's point of view, in positioning product market, make full use of the advantages of Apon point to many points to save limited ATM switch port, improve bandwidth utilization. With the transition of ATM switch to the edge of the network, the function of the network becomes the convergence of the edge service, and the Apon flexible network can be used at this time. With Apon's security and its full business support capability, while ensuring business QoS, this is unmatched by any other access technology, and of course the identification depends on the operator's attitude towards broadband access and the specific application environment.

Typical applications

1. The system as a distributed DSLAM equipment

2. Transmission platform,

3. Various Dslam equipment

4. With ONU equipment

5. Connected,

6. Extend the business to the user.

7. Full service network access system of OLT equipment

8. With the help of digital segments for networking. Each olt corresponds to a node,

9. Attached to many ont (ONU) equipment,

10. Provide bandwidth leasing business for group users. Users take advantage of their own routers,

PABX,

12. Realize LAN Interconnection,

13. Internal telephone and other business.