Large particles bandwidth multiplexing
2. Large particles bandwidth multiplexing, cross and configuration, OTN bandwidth of currently defined particle layer to optical channel data unit (ODUk, k = 1,2,3), i.e. ODU1 (2.5Gbit / s), ODU2 (10Gbit / s ), and ODU3 (40Gbit / s), the bandwidth of the optical layer particles wavelength with respect to the scheduling of SDH VC-12/VC-4 particles, OTN multiplexing, cross and configuration laptop battery significantly larger particles of high bandwidth data fit the customer's business and transport efficiency is significantly improved. Currently on SDH and ATM can achieve the standard package and transparent transmission.
3. Powerful overhead and maintenance management capabilities, OTN and SDH provides similar management capacity overhead, OTN optical path (OCh) layer OTN frame structure greatly enhances the ability of digital surveillance OCh layer. In addition OTN also provides six levels of nesting tandem connection monitoring (TCM) function, which makes the OTN network, In order to solve the problem of digital surveillance client signal, the optical channel layer is divided into optical channel transport unit (OTUk) and optical channel data unit (ODUk) two sub-layers, similar to the SDH technology section layer and the channel layer.
4. Enhanced networking and protection capabilities by OTN frame structure, laptop battery ODUk crossover and multi-dimensional reconfigurable OADM (ROADM) introduction, greatly enhancing the optical transport network networking ability to change based on the current SDHVC-12/VC-4 scheduling point bandwidth and provide high-capacity WDM transmission bandwidth of the status quo. The use of forward error correction (FEC) technique, a significant increase in transmission distance optical layer. In addition, OTN will provide a more flexible electrical and optical layers based service protection functions.
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