114 en | Installation wiring PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
– IMPORTANT: Depending on the mounting surface (i.e. wood studs, brick, dry wall)
the correct mounting material suitable for the mounting surface and weight of the
product should be used to ensure a safe and correct surface mounting.
10. Secure the backbox to the wall using one screw:
– Level the cabinet to the correct horizontal position and tighten screw.
11. Mark 4 additional mounting holes (2); 1 keyhole to the right and 1 keyhole to the left of
the center keyhole, and 2 holes located at the bottom of the enclosure.
– Remove screw and remove the backbox from the wall.
– Drill 4 additional holes in the wall where marked.
– Install additional mounting hardware in 4 holes.
– Hang backbox on center screw, install 4 remaining screws and tighten all.
– IMPORTANT: Depending on the mounting surface, the correct mounting material
(i.e. screws) should be used to ensure a safe and correct surface mounting.
12. Pull wiring cables into backbox through selected knockout locations (top, bottom, back).
Secure conduit, ground cable, MC cable, etc., to backbox per NFPA70 codes:
– IMPORTANT: The metal housing needs to be grounded. Connect an external ground
strap cable at one end with terminal lug to the ground point of the backbox. Tighten
the nut with a maximum force of 0.9Nm.
– Allow sufficient cable length for connection to the PRA-CSLW (when the chassis is in
the open position).
– See
Power over Ethernet connections, page 119
.
13. Re‑attach the chassis assembly to the backbox:
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