APC AR7578 NetShelter SX 48U 750mm Recessed Rail Kit

NetShelter SX 48U 750mm Wide Recessed Rail KitIntermediate mounting rails for supporting shallow depth equipmentEnables users to mount equipment with different depths in a 48U, 750 mm enclosure. Installation: The following procedure demonstrates a top mounting flange installation.1. Align the four small holes on the 6U mounting rail with four holes on the vertical mounting flange.2. Install four cage nuts in the side-facing holes (from Step 1) of the vertical mounting flange. Install an additional two cage nuts in the side-facing holes even with the slots on the 6-U mounting rail.3. Install a 6U mounting rail on the vertical mounting flange using four M6 x 12 screws and the cage nuts installed in Step 2.4. Repeat Steps 1 through 3 for the opposite side of the cabinet. The following procedure demonstrates a bottom flange installation.1. Choose six holes on the 15U mounting rail and align those holes with holes on the vertical mounting flange in the location you selected.1. Choose six ho