When deciding between a PON or an AON, it is important to consider what services are going to be delivered over the network, the overall network topology and who the primary customer will be. If, for example, radio frequency video services will be deployed, then a PON is typically the only practical solution. If all services are Internet Protocol-based, however, either a PON or an AON could be appropriate. If there are longer distances involved and providing power and cooling to active components in the field could pose a problem, then a PON may be the best choice. Alternatively, if the target customer is commercial or if the project involves multiple dwelling units, then an AON may be a better fit.
Both PONs and AONs can be supported from the same local exchange. Usually, the only consideration is whether they will share the same fiber infrastructure. If they will, then the fiber design must accommodate separate point-to-point fiber for the AON that do not run through a PON splitter. In some deployments, it may make sense to centralize the PON splitters at the local exchange. While this increases the fiber count in the field, it allows any fiber to be used interchangeably in either a PON or AON application as future needs dictate.
Related Q&A from David Hashman
Waning interest in fiber to the home (FTTH) has led to mobile backhaul becoming the main driver of fiber deployment. Will this trend continue? Fiber ...continue reading
Fiber expert David Hashman breaks down the primary cost factors and typical equipment and outside plant expenses associated with deploying fiber to ...continue reading
Fiber expert David Hashman allays fears that cost concerns will spur telecom carriers to abandon deploying fiber in their networks, due in large part...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.