A TN16XCH board is a type of cross-connect and system control board. It implements 640G ODUk (k = 0, 1, 2, 3, flex) cross-connections. You can use this board to manage other boards of a system on the NMS. It helps achieve communication within an NE, and provides the NE with physical-layer clock synchronization or PTP clock synchronization. A TN16XCH board is intended for an OSN 8800 T16 NE.

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