Optical Access Network case design and showing

• FTTH is deployed for hotel rooms. One fiber is routed to each room, avoiding the high costs that may have risen from multi- system and multi-cable dropping in a traditional network.

• Provides the all-service portfolio that includes HSI, voice, television, Wi-Fi, and guest room control services, achieving seamless coverage of rooms, lobbies, corridors, and cafeterias.

• Service carrying quality is guaranteed through reliability mechanisms, such as service traffic classification, service classes differentiated using HQoS, and network resources allocation.

The resort hotel project involves a total investment of ** billion, and covers national A-level scenic spots, hot spring bathing places, hotels, and the like.
The Hotel locates in the Resort, covers 500,000m , is the largest all-villa hotel in Asia. Rooms are widely distributed in the villas, and customers have various service requirements such as telephone, HSI, and video conferencing services, which pose high requirements on the hotel network.

The Hotel is built along the hillside. The hotel covers a wide area, its functional areas are widely distributed, and the hotel involves a large number of access points. All of these factors make network deployment difficult. The long-haul network construction means high costs for building a traditional switch network.
The hotel covers a variety of scenarios, and needs to address the requirements for ubiquitous access in the entire campus, including outdoor locations (hot spring area, parking lot, recreational area, etc.), where power supply is difficult to obtain.

The hotel rooms are fitted with a complete set of facilities that provide a rich range of intelligent services, including voice, broadband, IPTV, office, video surveillance, and automatic building control services. The traditional network involves complicated network construction, because multiple lines need to be deployed to deliver different services.
This results in a large number and various types of cables, and coexistence of multiple isolated networks, which makes OAM difficult.

The GPON solution technology,which delivers a 2.5 Gbit/s downstream bandwidth. The GPON technology employs bidirectional communications over a singlefiber, covers a longest distance of 20 km, and saves 50% of feeder fibers. With the same device costs as the traditional network, the GPON network saves overall cable routing costs by75%. As ODN is passive, outdoor power supply is not required.
Also, the 1:128 large optical split ratio makes the GPON network highly scalable, meeting the hotel's future requirements.
The LAN and WLAN of a villa can be covered by the same GPON network. The office area is covered by PON+LAN, and public area is covered by PON+WLAN. In addition, GPON also carries hotel services such as video surveillance, bulletins, and POS machine service. In this way, all services are carried by the same GPON network.

One ONT (HG8247) is deployed in each hotel room and provides voice, broadband, and video services, eliminating the need for deploying multiple systems. CATV service is provisioned by RF port, broadband access by FE port, and room telephone service by POTS port. The services of each hotel room are carried over a single fiber in an all-IP manner, simplifying the network structure and reducing the maintenance costs.

Integrated: As the hotel chooses E2E integrated solution, we no longer need to piece things up.

Complete: The complete Keeping track of things from the initial phase through the delivery phase of the project.The service really impresses customer.

Perfect: So far all the systems are running stably and provide indispensable support for the hotel's business operating. the solution as a perfect.

• Supports a wide range of temperatures: -40°C to +85°C; provides 6 kV lightning protection; entire closure made of aluminum, well sealed to resist dust and erosion, and features high EMC.

• Network topology inherently suitable for the power distribution network architecture; adopts hand-in-hand protection; the industry's only ONU that has dual-upstream hot backup, eliminating the need for link switchover, ensuring zero service interruption.
• OLT supports BFD in upstream direction and supports upstream link redundancy protection, guarding against single-point/multi- point failure.

• Intelligently isolates rogue ONUs, supports the dying gasp, reports power outage alarms, and monitors ONU port status.

Residents and especially enterprises are posing higher requirements on the quality, reliability, and security of power grids. Based on the overall local network condition, customer makes a systematic plan on the power distribution lines in the urban districts. The company plans to build a larger automated power distribution system by coverage area through multiple phases.

In downtown areas, especially economically developed areas such as CBDs, are crowded with financial and IT enterprises as well as hospitals. The businesses of such organizations have specialized characteristics, such as continuity and zero tolerance to interruption. Therefore, these organizations have stringent requirements on the power supply quality, reliability, and power outage duration.

However, customer faces a number of problems that arise from a complicated power distributionnetwork:

• Power distribution lines are aged and suffer serious line loss.
• Power supply quality is poor, and there is no guarantee to the power outage time. Such problems greatly impact financial and hi-tech enterprises.
• Communications technologies are outdated, failing to support automated power distribution.
• There are a large number of power distribution terminals, making OAM complicated and causing high management costs.

Against such a backdrop, the Company starts the power distribution automation reform trial, to implement automated power distribution for CBD and residential areas that have important power supply and stable power grid structure. The first two phases of power distribution automation include most areas in the south and north parts of the city, covering a total of 19 substations and 104 10 kV lines.

Through the automated power distribution network, the company is able to monitor the load status of power distribution terminals and lines in real time, thereby effectively adjusting power energy allocation, smoothing voltage fluctuations, and improving voltage pass rate.

The company is able to monitor the entire power distribution network in real time through the distribution automation system. Meanwhile, the distribution automation system can monitor and analyze the load of lines, effectively solving the mismatch between the designed load capacity and actual load capacity of some lines.

The device fault rate decreases. Meanwhile, the distribution automation system can monitor the device status and switch opened/closed status of each power distribution terminal in a real-time and visualized manner. When a power outage occurs, maintenance personnel can remotely locate the fault quickly, and remotely operate the power distribution switch by using the "remote control" function, in this way reducing the time for checking and fixing lines, and shortening the power outage duration.

• Compatible with the existing OSS and service provisioning modes; compatible with the existing DOCSIS 2.0/3.0 terminals (including CMs and STBs).

• CMC deployed on optical nodes, each CMTS device covering 256 users, offering 800 Mbit/s downstream and 160 Mbit/s upstream.

• Optical fibers are deployed close to users, providing integrated access capabilities, and supporting multiple services, including traditional services and new services such as enterprise VPN and hotspot coverage.

• The solution adopts a P2MP network architecture. Multiple optical nodes share the same feeder fiber, saving fiber resources by 80%. The QAM is deployed at lower layer of the network, saving aggregation ports of the central equipment room.

G customer is a major B&T operator in and is transforming from a traditional cable TV operator to amultimedia network and information service provider.
G customer is seizing the opportunities to promote HD interactive digital television, turning TV sets in users' homes into multimedia terminals. By doing so, the media group will deliver brand new digital media experience to a large number of users.

Higher bandwidth is required of the access CMTS devices. The existing CMTS devices (also called the big Cs) cannot meet bandwidth, cost budget, and resources requirements. The operator is considering introducing C-DOCSIS devices (also called D-CMTSs, small Cs). The company will use D-CMTSs to carry interactive services in service-intensive areas, such as urban areas and areas belonging to the newly assigned provincial network.

In big C mode, devices are collectively deployed in the branch equipment room, causing problems such as room space shortage, heavy power consumption, and serious consumption of fiber resources. This mode has high TCO. With service growth and expansion in the future, new equipment rooms and power plants need to be deployed to meet service needs, causing the site selection problem.

In big C mode, a device is connected to a large number of users, sometimes as many as tens of thousands of users. A fault easily paralyzes a large area of the network. With the D-CMTS solution, CMTS devices are deployed at the position of optical node. A single device is connected to several hundred users. Thus, the impact scope of faults is effectively narrowed down.

The solution deploys medium-capacity OLTs (MA5603Ts) in the branch equipment room, and connects the OLT to D-CMTSs through a 1:4 optical splitter, saving feeder optical fibers. MA5603T supports both EPON and GPON at the same time, and the OLT can be smoothly upgraded to 10PON, meeting future service needs.

D-CMTSs are moved out of the equipment room and deployed at the position of optical nodes, sharing the same cabinet with the original optical receivers/transmitters, saving equipment room space, eliminating the need for upstream/downstream optical transmitters/receivers, and reducing the cable routing difficulty.

MA5633 has built-in power amplifiers, ensuring zero modification to the HFC network. Moreover, MA5633 is compatible with the DOCSIS 2.0/3.0 CMs in the existing network, so users need not replace their CMs, realizing fast service provisioning. MA5633 can be interconnected to the existing OSS to implement alarm functions.

• Video streams are transmitted in real time to the cloud through PON.
• Access bandwidth requirements are satisfied: 1.25 Gbit/s upstream, 19.5 Mbit/s downstream after 1:32 optical splitting.

• Capable of HQoS at service-based and user-based granularities.
• Dedicated bandwidth assurance for broadband, VoD, and private line services.

• Supports multiple installation modes, including wall mounting and pole mounting, adaptive to indoor and outdoor installations.

• Resists water, dust, and sabotage; easy to maintain; improves cable routing efficiency by 30%.

• The flexible tree and star topologies of PON match the deployment requirements of video surveillance, saving cable routing and auxiliary costs.