A passive optical network (PON) is a type of FTTH network architecture that uses a single fiber optic cable to serve multiple end users. The fiber optic cable is split into several branches using passive optical splitters, which divide the signal without requiring any power or active equipment. A PON can reduce the cost and complexity of the network, as it requires less fiber, less space, and less maintenance. However, a PON also has some limitations, such as lower bandwidth per user, higher latency, and lower security.
-
The main advantage of PON to me is the fact that we do not have any active equipment in the OSP network. Therefore, the associated costs and challenges of managing active equipment out in the field are reduced. This makes it easy to manage and really attractive especially in countries where 24X7 electric energy provision is a challenge. The limitation with bandwidth is there, however that is also being taken care of with every new version of the PON standard coming out where we are getting more and more bandwidth per PON port hence that issue is also being taken care of.
-
A key factor impacting the choice of the optimal FTTX architecture is the local geography/demography. Best network design practices/rules vary considerably for high or low-population-density areas. In a densely populated area, a greater number of units can be clustered on a single distribution point (DP) to achieve a relatively high OLT port utilization. In rural areas with lower population density, distances between addresses and DPs may become a more important design constraint than the capacity of each address point. Generally, dense areas -in contrast to rural areas- offer more options for clustering units around DPs, as well as for cable routing. Rural areas -contrary to urban- will have more available options for cabinet placement.
-
I'm not sure PON reduces complexity....depending on where this PON originates from. If in a centralized split scenario, then most likely reduces complexity. In a distributed split scenario I think it may actually increase complexity due to fiber management and challenges with testing.
-
It's not that hard to learn in my experience but distributed or centralized each have their challenges and benefits. It really depends on specific application. Centralized does have more security but distributed takes way less fiber count. I think they are both easy enough to get used to simultaneously, and are both useful in their own respect.
-
AON is more suitable if you have high requirements for network speed and stability, or if you have a large number of users in your area. PON is more suitable if you have greater constraints on the cost of the network, or if the power supply in your area is unstable. If you are located in a large geographical area, or your users are scattered, then AON may be more suitable. Coverage scope: AON can cover a distance of up to 100 km, whereas PON can usually only cover about 20 km. Thus, PON users must be closer to the center, while AON users can be farther away from the center.
An active optical network (AON) is a type of FTTH network architecture that uses a dedicated fiber optic cable for each end user. The fiber optic cable is connected to active devices — such as switches or routers — that amplify, filter, and route the signal. An AON can provide higher bandwidth per user, lower latency, and higher security, as each user has a direct and independent connection to the central office. However, an AON also has some drawbacks, such as higher cost and complexity of the network.
-
Yep Ideally, I would recommend AON or Active E as the starting point for any NEW design FTTH network....higher cost maybe, complexity....please convince me on the latter....with dedicated counts and availability of fiber any complexity is removed from the OSP side of this.
A point-to-point (P2P) network is a subtype of AON that uses a single fiber optic cable for each end user, without any intermediate active devices. The fiber optic cable is directly connected from the central office to the end user's premises, forming a simple and straightforward network. A P2P network can offer the highest bandwidth per user, the lowest latency, and the highest security, as each user has a dedicated and uninterrupted connection to the central office. However, a P2P network also has the highest cost and complexity of the network, as it requires the most fiber, the most space, and the most maintenance.
-
Let's discuss maintenance.... where does the maintenance take place? Once the network is spliced, P2P, where is additional maintenance? Not related to fiber cuts/lightning/floods etc....with a Traditionally "P2P' or spliced network you are actually reducing maintenance (possibly) by elimination of any passive device that has a mechanical connection...i.e splitters/tie panels/patch panels. These locations are known for producing many detriments to a fiber network micro/macro bending/additional insertion loss and/or reflectance.
-
Advantages of Point-to-Point (P2P) Solution High speed and stability: Point-to-point connection is the most direct way to connect users to the optical fiber network, which can effectively eliminate the problem of multiple users sharing bandwidth, and ensure that users can obtain higher network speeds and more stable connections. Privacy protection: Each user has an independent fiber optic connection, which will not be affected by the network activities of other users, providing better privacy protection.
-
I will like to call it a dark fiber or leased line network rather than P2P. Because you can give a P2P connection to any user using any kind of network like PON, AON, etc. If dedicated fiber is provided, it will be called a dark fiber or leased line. If a P2P connection is provided using some higher-layer technologies like DWDM, VLANs, cross-connects, etc., even then it will be a P2P connection in essence. Dark fiber P2P needs the least maintenance as it is a dedicated straight-forward link from point A to point B.
A point-to-multipoint (P2MP) network is a subtype of PON that uses a single fiber optic cable to serve multiple end users, with one or more intermediate passive optical splitters. The fiber optic cable is split into several branches using the splitters, forming a tree-like network. A P2MP network can reduce the cost and complexity of the network, as it requires less fiber, less space, and less maintenance. However, a P2MP network also has lower bandwidth per user, higher latency, and lower security, as each user shares the same connection to the central office.
-
AKA Distributed split....Hi density, low fiber count, challenges with cable placement scenarios...think concrete steel and cities.
-
Advantage of Poing to Multipoint Lower cost: Compared to point-to-point solutions, the deployment cost of the centralized distributor solution is lower because multiple users share a fiber connection. Convenient management: Since multiple users share a fiber connection, maintenance personnel only need to maintain and manage a centralized distributor, which simplifies maintenance work.
A hybrid fiber-coaxial (HFC) network is a type of FTTH network architecture that combines fiber optic cables and coaxial cables to deliver broadband services. The fiber optic cable is used to connect the central office to a local node, where the signal is converted to a coaxial cable format. The coaxial cable is then used to connect the local node to the end users' premises, using existing cable TV infrastructure. An HFC network can leverage the existing coaxial cable network, reducing the cost and complexity of the network. However, an HFC network also has lower bandwidth per user, higher latency, and lower security, as each user shares the same coaxial cable connection to the local node.
-
HFC in its name is telling us that it is not an FTTH network. The fiber is not reaching to the "Home". It ends before the end user somewhere in the OSP. Therefore, this is not a type of FTTH network, rather an FTTx network type where we run coax or copper beyond a specific point in the access network.
-
Le HFC était le réseau type de ce qu'on appelait les "réseaux cablés". Lorsque nous avons fait évoluer les réseaux HFC pour améliorer le débit, nous avons progressivement réduit puis supprimer la parti en coaxial. Quand les 2 ou 3 rangs d'ampli sur le coax on été supprimé, on appelait ?a le FTTLA (Fiber To The Last Ampli) pour les zone plut?t pavillonnaire et on a appelé FTTB les zone débouchant sur les immeubles. Pour des raison de facilité de compréhension, le nom plus générique de FTTx à commencé à circuler.
-
Anytime you are considering options for your network, the first advice that I always give is to self evaluate your network, and the network topology that you serve. This will give you insights into what type of network best suits you. There is no cookie-cutter network that can be used everywhere. Your splitter configurations, your manufacturer selection, and the distribution partner that you choose, all start with your network and the topology you serve. Secondly, I look at the experience level of the technicians that work for you. Can you scale a network and maintain it long-term? This leads you to the right solutions faster.
-
There are many FTTH solutions available, each with its own advantages and disadvantages.When choosing a solution, it is important to weigh the pros and cons against your actual needs and budget. If you need the highest possible speeds and most stable connections, a P2P solution is the best option. If you are looking for a more affordable and easier-to-maintain solution, a P2MP solution may be a better choice. And if you need a flexible solution that can be considered for your specific needs, a fiber-to-the-building(FTTB) solution may be an option.
更多相关阅读内容
-
Fiber to the x (FTTx)What are the key factors for choosing the right FTTP technology and architecture?
-
Internet ServicesWhat is the best way to prioritize network architecture projects?
-
Infrastructure ManagementHow do you design a scalable and flexible cabling system for your data center?
-
Network DesignHow do you balance network design complexity and simplicity when documenting and diagramming your network?