Relationship between optical NEs and electrical NEs on an ASON network

When the optical and electrical NEs of an ASON NE are not split, the OTU or FIU boards on the ASON NE can function as edge points, and the related TE links can be automatically created when the boards are created.
When the optical and electrical NEs are split, the multiplexer/demultiplexer or other optical-layer boards can function as the edge points of the optical NEs.
When the fiber connections between the optical ports on the multiplexer/demultiplexer boards and those on the OTU boards are created, the intra-NE links that carry OCh signals are automatically created.

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