Overview Features

NGPON will go through two standard phases: NGPON1 and NGPON2.We usually have 10G GPON in the NG PON1 stage, standard number G.987 series, also known as XG PON.The asymmetric system (2.5Gbit/s uplink, 10Gbit/s downlink) is called XG-PON1, and the symmetric system (10Gbit/s uplink, 10Gbit/s downlink) is called XG-PON2.

At present, we provide XGPON devices with an uplink 2.5Gbit/s, downlink 10Gbit/s asymmetric rate and an uplink 10Gbit/s, downlink 10Gbit/s symmetric rate to meet the rapidly growing service demand.Juwei Communication Technology Co., Ltd. provides a complete 10G GPON FTTB/C solution.10G GPON provides higher bandwidth and is fully inherited from GPON in application scenarios, service configuration and O&M.Figure 1-1 shows 10G GPON FTTB/C networking.

● Optical Line Terminal (OLT) provides 10G GPON service access through the 10G GPON access board.

● Optical Distribution Network (ODN) provides 10G GPON service transmission.

● The Optical Network Unit (ONU) provides user service access and upstream through the 10G GPON uplink port.

Refer to Standards & Protocols

● ITU-T G.987: ITU-T Recommendation G.987 (2010), G.987 definitions, abbreviations andacronyms.

● ITU-T G.987.1: ITU-T Recommendation G.987.1 (2009), 10 Gigabit-capable PassiveOptical Network (XG-PON): General Requirements.

● ITU-T G.987.2: ITU-T Recommendation G.987.2 (2009), 10 Gigabit-capable PassiveOptical Network (XG-PON): Physical Media Dependent (PMD) layer specification.

● ITU-T G.987.3: XG-PON TC Layer Specification.

● ITU-T G.988: ITU-T Recommendation G.988 (2010), ONU management and controlinterface specification (OMCI).

The Principle is Introduced

The 10G GPON network adopts the P2MP network architecture, that is, the wavelength division multiplexing principle is adopted through the upstream and downstream different wavelengths in the same Data transmission is carried out on each ODN：

● Downlink transmits data by broadcasting, and the downlink center wavelength is 1577nm.

● Uplink through TDMA, the ONU transmits data according to the time slot, the uplink center wavelength is 1270nm.

10G GPON ONU Authentication

In ONU authentication, the OLT authenticates the validity of the ONU based on the reported authentication information and rejects connections from illegitimate ONUs Into the Only authenticated legitimate ONUs can access the PON system, which can satisfy the carrier to achieve flexible and convenient The management mode of the maintenance.

10G GPON terminal authentication works in the same way as GPON terminal authentication, which is not described here.

10G GPON terminal authentication includes: unconfigured ONUs (automatically discovered ONUs) on the OLT,Onus preconfigured on the OLT (The authentication modes for the preconfigured ONUs are SN authentication and SN authentication+Password authentication, Password authentication), LOID authentication.

The 10G GPON terminal authentication mode is different from that of the GPON terminal authentication mode. 10G GPON extends the length of the password from 10 to 36 bytes.

Networking Applications

To ensure that the GPON network evolves to 10G GPON, this paper describes two common networking scenarios.You can select one based on the actual network scenario and requirements.