Huawei OptiX OSN 9800 U32 Enhanced Subrack V100 Quick Installation Manual page 66

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U64/U32/U16 Subracks (Normal Status)
NOTE
•U64/U32/ U16, two CTU boards are used for mutual backup, both the CTU boards in a subrack need to be
connected to the two CTU boards in another subrack. Only CTU boards in the same-numbered slot in the
two subracks can be connected.
•U16 subrack (central switching subrack) can only be a slave subrack, but cannot be a master subrack.
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Routing NM Cables
NOTE
1. The NM cable is routed through the fiber trough either in
overhead cabling or underfloor cabling mode.
2. Two cable saddle clamps are mounted on each side (left
and right sides) of the subrack for routing CTU board
fibers. The two cable saddle clamps are next to the CTU
boards. Route the NM cables through these cable saddle
clamps.
U64/U32/U16 subracks
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