OSN 3500 is a new-generation optical transmission system developed by Huawei. It adopts a unified switching architecture and can function as an MPLS/MPLS-TP-based packet device or a TDM device. When working with other devices of Huawei, OSN 3500 supports various networking modes, including the pure packet mode, hybrid networking (packet + TDM) mode, and pure TDM mode, achieving optimal processing for packet services and traditional SDH services. Thus, OSN 3500 efficiently transmits voice and data services over the same platform. Version Description The PEX1 is available in N1 and N2. The N1PEX1 is discontinued. Table 1 describes the versions of the PEX1. Table 1 Versions of the PEX1 Item Description Functional versions The PEX1 is available in two functional versions, namely, N1 and N2. Differences Regarding interface specifications: interface types, working modes, unidirectional-mode setting. Regar...
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