DWDM is a point-to-point system while OTN, composed of optical cross-connector (OXC) and optical add/drop multiplexer (OADM), possesses functions like optical cross-ability and wavelength conversion. The OTN grows on the basis of DWDM technology with the aim of optimizing the existing resources of transportation network. In addition to providing large capacities of DWDM transmission, OTN permits the switching of different DWDM channels according to the needs of traffic.
In addition, as it has been proven that it is possible to tap a fiber optic cable and extract data streams, people have paid much more attention to data security over DWDM links. In contrast, OTN-channelized links and effective partitioning of traffic onto dedicated circuits bring a high level of privacy and security, preventing hackers who sneak in some section of the network from intercepting data or gaining access to other areas.
We can say that OTN network excels DWDM networks in its enhanced OAM, security and networking capabilities for wavelengths and standard multiplexing hierarchy and end-to-end optical transport transparency of customer traffic.
Conclusion
Though there are indeed differences between OTN and DWDM, the two technologies are irreplaceable and have become the key point in the telecommunications infrastructure for regional networks as the allows bandwidth over existing networks. HTF focuses on providing customers the best technical support, engineering cost effective and scalable solutions for metro and long-haul DWDM network.
For more details, and If you have any doubts on CWDM/DWDM MUX DEMUX, 10G/100G/200G/400G dwdm solution, HTF provide technical support you within 24 hours, if need support, welcome to contact HTF team, info@htfuture.com 008618123672396
