Kramer Electronics SPK-C800-PRO - Manual (Page 12)

10 ESD Ceiling Speaker - Installing the ESD Ceiling Speaker
Figure 7: Fitting the Tile Size Speaker
2. Secure the speaker by connecting the speaker support ring to an
independent secure ceiling anchor point (see Figure 8 ) as appropriate.
The anchor prevents the speaker from falling if the tile itself comes out or falls apart.
Figure 8: Securing the Speaker to a Ceiling Anchor Point