Bosch 3.5 User Manual

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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers
en | 199
14
LBC1256/00 EVAC 
Connection Adapter
14.1 Introduction
Using an LBC1256/00 EVAC Connection Adapter, 
loudspeakers that do not contain a ceramic block with a 
thermal fuse can be upgraded to comply to evacuation 
standards.
14.2 Installation
The EVAC connection adapter must be installed in an 
enclosure with double-sided tape (see figure 14.1). The 
cable between the loudspeaker and the EVAC 
connection block must be short to make sure that the 
temperature of the thermal fuse does not differ from the 
temperature of the cable. Otherwise, the thermal fuse 
will not blow before there is a short-circuit in the 
loudspeaker line.
1 Double-sided tape
2 LBC1256/00
3 Enclosure
The EVAC connection block itself is a three pole screw 
connector to which the loudspeaker can be connected 
(see figure 14.2).
14.3 Technical 
data
figure 14.1: Connection details
 
1
2
3
figure 14.2: Circuit diagram
Dimensions (H x W x D):
19 x 37 x 22 mm
Weight:
40 g
Thermal fuse:
150 °C 
Material:
Ceramic
Type:
3-pole screw connector
Preferred cable:
Heat-resistant cable (e.g. cable with PTFE insulation)
Pack contents: 
100 pieces
Lsp -
Lsp +
Lsp +
Lsp