1) Preface.
With the rapid emergence of various services, more and more industries have realized that it is necessary to break through the bandwidth “bottleneck” as early as possible, and optical fiber is by far the best transmission medium. The advantages of optical fiber compared with copper wire are two: the transmission distance is longer; More data is transmitted per unit time (currently up to 100Tbps/s).
This course mainly studies the background, basic concepts, characteristics and application scenarios of GPON technology, the management mode of GPON system and the service provisioning mode of terminal, as well as the networking application and networking protection mode of GPON.
2) Concept
PON is a passive optical network with point-to-multipoint (P2MP) structure.
GPON: Gigabit-Capable Passive Optical Network. Gpon: Gigabit- capable passive optical network. PON network components: Optical Line Terminal (OLT)
Optical Distribution Network (ODN) consists of optical splitters and optical fibers
Optical Network Unit/ Optical Network Terminal ONU/ONT (Optical Network Unit/ Optical Network Terminal)
The transmission process is as follows:
The OLT connects to the Internet, VOIP, and IPTV upstream, and connects to the ODN downstream.
ODN distributes all data to each ONU or ONT through optical distribution.
The ONU or ONT selects the data it needs through the identification code in the data frame and then transmits it to the client.
The above is the GPON network architecture brought by Shenzhen Haidian Photoelectric Technology Co., LTD. The module products produced by the company cover fiber module, Ethernet module, fiber transceiver module, fiber access module, SSFP optical module, SFP optical module and so on. The above module class products can provide support for different network scenarios. For the above products, it is paired with a professional and strong R & D team to provide technical support for customers, and a thoughtful and professional business team to provide quality service for customers in the early consultation and later work.