Bosch Security Systems | 2011-02
Praesideo 3.5
| Installation and User Instructions | 4 | Amplifiers
en
| 194
3 Connect the board to the loudspeaker with the flying
leads and the faston connectors (see figure 12.6).
12.3.3 EOL supervision board
The procedure for installing an EOL supervision board
is similar to the installation of a loudspeaker supervision
board (see section 12.3.2). However, the EOL
supervision board does not contain faston connectors
(see figure 12.7).
12.4 Addressing
All LBB4441/00 Loudspeaker Supervision Boards and
LBB4443/00 EOL Supervision Boards must have an
address for communication purposes. All LBB4441/00
Loudspeaker Supervision Boards and LBB4443/00 EOL
Supervision Boards that are connected to the same
amplifier channel must have a different address. Use the
S700 and S701 switches to assign a (hexadecimal)
address in the range of 00 to 4F to the board. The S700
switch sets the right digit, whereas the S701 switch sets
the left digit of the address. Each switch has 16
hexadecimal positions (0 to F).
figure 12.5: Dimensions
Note
Use one of the faston cables inside the
loudspeaker and the supplied faston cable to
connect the board to the loudspeaker.
Note
The board must be connected after the ceramic
terminal block with the thermal fuse. In case of a
fire, the thermal fuse will act and disconnect the
board from the loudspeaker line. The trip point
of the thermal fuse that is connected to the
ceramic block is lower than the melting point of
the solder on the board to prevent short-circuits
in the supervision board and the loudspeaker
line.
Note
When the loudspeaker does not contain a
ceramic block with a thermal fuse, use an
LBC1256/00 EVAC Connection Adapter (see
78
40
70
5
10
40
50
60
3.1
5
figure 12.6: Loudspeaker supervision connection
figure 12.7: EOL supervision connection
Lsp
Out
Lsp Out +
_
X10
X11
Lsp
Out
Lsp Out +
_
X10
