Which of the following is the cabling mode of external power cables in IT scenarios...

In the FusionDC1000A IT scenario, the external input power cables are designed to enter the power distribution system throughdedicated cable inlets at the bottomof the Power PDB. During installation, the procedure requires opening the Power PDB, removing the plugs from thebottom cable holes, and routing the external input power cables into the cabinet through these bottom entries before arranging them along the nearby cable support/bridge inside the Power PDB area. After the cables are terminated (for example, L1/L2/L3/N and PE), the bottom cable entries are resealed using waterproof sealing materials to maintain enclosure protection performance. This bottom-entry method supports reliable mechanical routing for thick/armored power cables, reduces bending stress, helps maintain orderly segregation from signal cabling, and improves on-site safety by guiding high-current cables through a controlled inlet path. Therefore, the correct cabling mode for external power cables in FusionDC1000A IT scenarios isbottom cabling.