Hold-Down Clamp; Figure 2-5-A: Installing Hold-Down Clamp - Advantech IPC-623 Series User Manual

2.5 Hold-down clamp

The hold-down clamp protects all the cards from vibration and shock.
After inserting the CPU card and add-on cards, remember to install the
hold-down clamp according to the following steps.
1. After plugging in the CPU card and add-on cards, please insert the
rubber cushions provided into the notches of the hold-down clamp
and adjust them so that their positions correspond with the locations
of the cards. In addition to the rubber pad under the hold-down clamp,
the cushions offer these cards second level of protection against
shocks and vibration. (See Figure 2-5-a).
2. Put the hold-down clamp back into its original position. Please note
that the circle hole on the hold-down clamp faces toward the rear
panel. (See Figure 2-5-b).
3. Secure it to the chassis with the four screws.

Figure 2-5-a: Installing hold-down clamp