Isolator Board
R
4
0
3
R
2
1
0
R
4
0
4
R
2
1
1
R
4
0
5
R
4
0
6
R212
R
2
1
4
R218
R
2
1
9
R410
R
4
1
2
R
4
1
3
R414
R
4
1
6
R222
R
2
2
3
R
2
2
4
R225
R226
R
2
3
3
MP1
R236
C200
C
2
0
1
C
2
0
2
C
2
0
4
C205
C206
C
2
0
8
C
2
0
9
C
2
1
0
C211
C212
C
2
1
3
R445
C215
R
4
4
6
C
2
1
6
R447
C
2
1
7
R448
C
2
1
8
R
4
4
9
C219
X401
X
4
0
2
C413
R
4
5
0
C416
C
4
1
7
C
4
1
8
C
4
2
2
C424
C3
C4
C6
V
3
0
1
V
3
0
4
V
3
0
5
V306
V307
D
2
0
0
D
2
0
1
T200
T201
B301
R301
R
3
0
3
R304
R305
R314
L1
L2
R327
C301
C302
C304
R13
R26
R
2
8
V10
R
2
9
V13
V14
V15
V
1
6
V
1
7
R5
V202
V
2
0
3
S1
V
2
0
5
V207
V403
V
2
1
0
V
2
1
1
V215
V
4
0
9
V216
V
4
2
4
V427
V
4
2
8
V3
V4
V6
V
4
3
1
V433
V434
V
4
3
5
V436
V
4
3
7
V
4
3
8
V
4
3
9
X1
X2
X3
X4
X5
X6
X
7
R207
R208
R
2
0
9
V300
+
+
1
1
1
1
1
1
9
10
11
1 2
3 4 5 6
8
7
No. Item
Description
1
Tap-off power 100
watts (X4)
–
Tap-off overload threshold is 100 watts.
2
Tap-off power 36
watts (X5)
–
Tap-off overload threshold is 36 watts.
3
Test button
–
Momentary switch to test the loop connection of the Isolator
Board.
4
Tap-off power 10
watts (X6)
–
Tap-off overload threshold is 10 watts.
5
LED Indicator
–
Indicator, lights up when:
–
The board is powered and there is a short circuit in the
adjacent segment or an overload/short circuit on the tap-
off (X3).
–
The board is powered correctly and the test button is
pressed.
6
Tap-off power 10
watts + Pilot tone
filter (X7)
–
Tap-off overload threshold is 10 watts, including a 20 kHz
pilot tone attenuation filter.
6.2
36
en | Connections indicators and controls
Loudspeakers Line Isolator System
2014.03 | V1.1 |
Installation and Operation Manual
Bosch Security Systems B.V.