Hi.
With this Post we start a NEW theme: FTTx
FTTx SYSTEM OVERVIEW
FTTx Network Overview
FTTx Network Overview
· The FTTx solution is based on the T-bit optical access platform and is a unified access solution for the all-IP network architecture and full-service operation.
· The FTTx solution covers FTTH, FTTC and FTTO scenarios. It also provides high-bandwidth, high-reliability, and secure full-service access for scenarios including base station private line access.
· FTTH: fiber to the home
· FTTB: fiber to the building/curb
· FTTC: fiber to the curb
· FTTO: fiber to the office
· FTTM: fiber to the mobility base station
FTTx Network-Main Services
· The FTTx solution provides multi-services access for different scenarios, including high-bandwidth IPTV services, access to open networks in wholesale mode, high-speed internet access, base station private line access, enterprise private line access, and enterprise self-owned service access.
· 50 M@HDTV service
§ High definition television (HDTV): The HDTV program resolution can reach 1920 x 1080. Generally, the MPEG2-TS, WMV-HD, and H.264 algorithms are used to compress and transmit data. Different encoding technologies vary greatly in compression ratio and image quality. HDTV services with high resolution and high bandwidth are the most important services for mainstream carriers in network construction and market promotion.
§ The optical access network based on GPON lays a foundation for high-bandwidth access of subscribers. In the FTTH network construction mode, the split ratio of 1:64 is usually adopted. The average downstream bandwidth of each subscriber can reach 40 Mbps. Therefore, the average downstream bandwidth can be increased from 2 Mbps to 30 Mbps or 50 Mbps. The OLT provides 20 Gbps bandwidth for each slot to ensure that services on the VDSL2 board and 8GPON service board are forwarded without converging. The MA5680T/MA5683T uses the Access Node Control Protocol (ANCP) to interwork with the policy server of a carrier to implement video bandwidth control for subscribers. In this way, subscriber video bandwidth can be adjusted in real time based on service requirements, improving the subscriber experience.
· Open Access
§ Open access is a new mode of optical access. It disrupts the operation mode of end-to-end services provided by traditional carriers and allows third-party services or content providers to access the network to provide services for subscribers.
§ The FTTxsolution provides the open access platform for multiple carriers. In the open access solution, the optical access network becomes an open "access pipe". Different service providers can rent the open access resources, and the access network allocates the bandwidth to operators as required. The FTTxsolution provides multi-GE upstream interface boards to meet the requirements of multi-ISP access. The HQoSfunction is used to control the ISP service bandwidth, subscriber bandwidth, and subscriber service bandwidth. In this way, a hierarchical QoScontrol mechanism is established, ensuring that each ISP can use the bandwidth pipe provided by the open access network fairly.
· Enterprise access service
§ Enterprise access is an indispensable application scenario of FTTxnetwork construction. With the rapid development of FTTB, it has become a mainstream practice to use optical fibers for enterprise service access and interconnection, which is an effective supplement to traditional Ethernet interconnection.
§ The FTTxsolution provides the MA5612 for enterprise access scenarios. It works with the OLT to provide FE/GE/E1/POTS interfaces for enterprise subscribers, and implements enterprise data access, voice access, and interconnection between different branch departments through the GPON and EPON networks.
§ In terms of security and reliability, the FTTxsolution provides complete enterprise security and high reliability QoScontrol functions to ensure data security and service quality of enterprise subscribers.
· Base station private line Access
§ The large-scale FTTxconstruction continuously expands the optical fiber coverage, and gradually becomes the mainstream access mode. The rapid development of mobile communication services requires mobile base stations to be smaller and deployed with a higher density. To reduce the investment in base station backhaul, optical access is the best way for base station access.
§ The base station private line access solution provided by the FTTxsolution solves the service backhaul problem of base stations such as 2G/3G/LTE/Femtocell, and provides high-precision clock, time solution, and highly-reliable networking protection to meet base station access requirements in various scenarios.
· Enterprise self-owned service Access
§ A typical POL campus network uses PoE, security, and PON protection technologies to implement data, surveillance, video conferences, and private services.
FTTx Application Scenario Networking
In the FTTxnetwork application scenarios, the access modes include FTTH, FTTB, FTTC, FTTM, and FTTO. In these access scenarios, ONUs/ONT are connected to optical splitters and then to the OLT through optical fibers. The optical fibers and optical splitters belong to the ODN. The OLT is connected upstream to the aggregation switch through the IP network for upstream transmission.
Fiber To The Home (FTTH): Applicable to high-end individual subscribers in new or high-end residential buildings to provide high-speed access to video, voice, and data services. It breaks the bottleneck and contradiction of traditional access rate and distance.
Fiber To The Building/Curb (FTTB/C): The former is applicable to apartments or office buildings with medium and high density population. The latter applies to scattered apartment buildings and industrial parks. In old urban area reconstruction projects, the MDU can be used to provide the ADSL2+ or VDSL2 access service to subscribers at a rate of 2–20 Mbps. In this scenario, optical fibers only need to reach buildings or FDTs at curbs. Existing copper cable resources can be reused at the subscriber access side to reduce the device investment.
Fiber To The Office (FTTO): Applicable to commercial subscribers or government offices such as governments, banks, and hospitals. SBUs are used to provide E1/GE/FE/POTS interfaces to meet office requirements.
Fiber To The Mobility Base Station (FTTM): Applicable to service backhaul scenarios of the 2G/3G/LTE mobile base stations. The CBU is used to provide FE/E1 interfaces to meet the mobile backhaul requirements in various scenarios.
FTTx Network-Device Type
· FTTxnetworking solutions include FTTB, FTTC, FTTH, FTTO, and FTTM. There are various types of devices, including optical line terminals (OLTs) and optical network units (ONUs). ONUs can be further classified into different types according to the application scenarios.
· The figure shows 3 access scenarios: FTTC, FTTB, FTTH, and various devices at the CO side. Huawei provides a complete product family to meet carriers' requirements for FTTxnetwork construction.
· The full series of xPONproducts include ONTs, MxUs, ONTs, MSANs, DSLAMs, and complete auxiliary products, meeting carriers' diversified requirements for fiber-in and copper-out construction. In addition, all xPONproducts can be centrally managed by the iManagerU2000.
OLT: optical line terminal
ONT: optical network terminal
ONU: optical network unit
MSAN: multi-service access node
DSLAM: digital subscriber line access multiplexer
#HuaweiEnterprise
#OneHuawei
Here finish the post, remember share, comment and click on
