Installation Of A Single Eol - Bosch Plena Installation And User Instructions Manual

Plena Voice Alarm System | Installation and User Instructions | Equipment

14.3.1 Installation of a single EOL

1 Connect the two cables at the end of the 100 V
loudspeaker line to the Input 100V LS on the EOL
board.
2 Connect the two cables from an Emergency Trigger
Input on the Voice Alarm Controller to TRGA on
the EOL.
3 Connect the jumpers JP1 on the EOL as shown.
figure 14. 1 JP1 for single EOL
Bosch Security Systems | 2006-06 | 9922 141 10377 en
14.3.2 Installation of multiple EOLs in a
daisy-chain
With a daisy chain configuration it is possible to:
• Supervise several loudspeaker lines with only one
fault input.
• Supervise several branches of a loudspeaker line
with just one fault input.
1 Connect the cable from the 100 V loudspeaker line
to the terminal 100 V LS Input on the EOL board.
2 Connect one cable from an Emergency Trigger
Input on the Voice Alarm Controller to the FIRST
BOARD input on the EOL board.
JP1
figure 14.2 JP1 for first EOL
3 Connect a 20 or 22 kΩ resistor in parallel with the
Trigger input to connect more than one EOL board
on a single Trigger input and to supervise them.
4 Connect the EOL boards to the Trigger input as
indicated in figure 14.3. This input should be on the
Controller or Router to which the loudspeaker lines
it supervises are also connected.
Note
The last EOL board in line is connected in a
different way than the other EOL boards. This is
required to supervise the whole EOL detection
line against short circuit. Such a short circuit will
be reported as an Input Fault. A break in the
detection line will be reported as a Line Fault,
just as a loudspeaker line failure.
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