Acer Altos G530 - Manual (Page 174)

Appendix B: Acer Altos G530 rack installation guide 164
9 Install the server shelf assembly into the rack.
Caution! To avoid personal injury, care should be taken when
pressing the inner rail release latches and sliding the component
into the rack.
(1) Carefully align the inner rails attached to the mounting shelf
with the fully extended mounting rails on the rack.
(2) Press the release latch on both sides of the mounting shelf (1).
(3) Slide the mounting shelf into the rack, then push the
mounting shelf into the rack until you hear a click sound (2).
10 Attach the cable arm to the system.
The optional cable carm allows you to tie-wrap all cables to and
from the system. As you slide the system in and out of the rack, the
cable arm collapses and extends, keeping the cables untangled
and attached to the system.