TNU1CCXCS, Universal Central Cluster Cross Connect Board
Applied to Huawei OSN9800 U16
Works with system control board TNS2CTU
Performs centralized cross-connections of ODUk (k = 0, 1, 2, 2e, 3, 4, or flex) signals between subracks in a cluster system
Supports Electrical-layer ASON
The fourteen cross-connect boards of the U16 subrack form a cross-connect resource pool for service grooming
The system can still function properly when cross-connect boards on a maximum of two cross-connect planes are faulty

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