RLE FMS V.1.13 - Manual (Page 183)

rletech.com FMS User Guide 183
A FMS Expansion Cards
c Secure the card to the lid using the five mounting screws supplied .
Figure A.7 Expansion Card Final Placement in a Two-Rack Unit
7 If you are finished installing expansion cards:
a Hinge the lid back in place over the base.
b Reattach the side brackets using the two mounting screws on the back plate and the hex
posts for COM1 and COM2.