Installing Pra-Lid (Ldb) With Praesensa - Bosch PRAESENSA Installation Manual

14 en | Installation
Figure 4.2: Multiple LDB wiring. Left: individual amplifier channels. Right: shared amplifier
Figure 4.3: Multiple LDB wiring. Left: individual fault contact inputs. Right: common fault contact
Figure 4.4: Complete loudspeaker line isolator system installation diagram
4.4

Installing PRA-LID (LDB) with PRAESENSA

This section will describe the installation and configuration of the Line Isolator Drive in
combination with PRAESENSA to ensure an EN 54‑16 compliant installation.
We strongly recommend to first install and connect LDB to PRAESENSA and the loudspeaker
line. Having loudspeaker line connected to LDB gives you the DC‑power on the line, which is
necessary for correct start‑up of FIM. Skipping LDB during fresh system installation may result
in wrong FIM connections and unnoticed cable faults, which will cost you precious time during
system commissioning.
2021.07.28 | V1.00 |
Installation manual
Loudspeaker line isolator system
Bosch Security Systems B.V.