Artesyn RTM-ATCA-7350 Installation and Use (September 2014) - Manual (Page 26)

Hardware Preparation and Installation
RTM-ATCA-7350 Installation and Use (6806800H30G) 26
2.5.2 Removing Filler Blades
If the slot is occupied with a filler blade you have to remove it first.
After a filler blade is removed, place it in the equipment room or other moisture-proof and dust-
proof places.
You should install a blank filler blade in the slot after removing the blade. Otherwise, it may effect
the ventilation, heat dissipation, electromagnetic shielding and dust prevention of the shelf.
If this is the first installation for the shelf, the blade is fully configured and the shelf is not powered
on, you can remove all the filler blades. Then, install blades in the slots in order. This document
takes the first installation as an example.
If you want to install multiple blades in the shelf that is powered on, you can remove a filler blade
and then install a blade one by one.