Figure 56: Marking The Locations Of The Bracket Holes On A Concrete Wall - Allied Telesis 950 Series Installation Manual

Chapter 6: Installing the Switch on a Wall
106
Figure 56. Marking the Locations of the Bracket Holes on a Concrete Wall
4. Place the switch on a table or desk.
5. Use a drill and 1/4" carbide drill bit to pre-drill the four holes you
marked in step 3. Please review the following guidelines:
 Prior to drilling, set the drill to hammer and rotation mode. The
modes break up the concrete and clean out the hole.
 Allied Telesis recommends cleaning out the holes with a brush or
compressed air.