Master Unit (rear view)
115:
100-120V
50-60Hz
230:
220-240V
50-60Hz
T6.3A 250V
T6.3A 250V
115/230V
Mains
Grounded
Floating
Battery 24 / 48 V
4.5 A Max
Non-isolated input
0
+
Caution
Risk of electric shock.
Do not open
Avis
Risque de choc electrique.
Ne pas ouvrir
100V In
Loop 1
Loop Out
Loop RTN
+ – + – + –
Loop Fault Ground Short
Loop
Disable Loop
Gnd Short Slave
Walk Test
Connect
Fault
Mains
Battery
Fault Outputs
General
Mains
Battery
Reserved
Supervision
Ground Lift
100V In
Loop 6
Loop Out
+ – + – + –
Loop Fault Ground Short
Loop
Connect
Fault
100V In
Loop 2
Loop Out
+ – + – + –
Loop Fault Ground Short
Loop
Connect
Fault
100V In
Loop 3
Loop Out
+ – + – + –
Loop Fault Ground Short
Loop
Connect
Fault
100V In
Loop 4
Loop Out
+ – + – + –
Loop Fault Ground Short
Loop
Connect
Fault
100V In
Loop 5
Loop Out
+ – + – + –
Loop Fault Ground Short
Loop
Connect
Fault
Loop RTN
Loop RTN
Loop RTN
Loop RTN
Loop RTN
Disable Loop
Gnd Sho
rt Slave
Walk
Test
Reserved
Disable Loop
Gnd Short Slave
Walk Test
Reserved
Disable Loop
Gnd Sho
rt Slave
Walk
Test
Reserved
Disable Loop
Gnd Sho
rt Slave
Walk
Test
Reserved
Disable Loop
Gnd Short Slave
Walk Test
Reserved
OK
OK
OK
OK
OK
OK
3 4
The following indicators are active when the loop is enabled and the Master Unit is in walk
test mode:
No. Description
Color
LED status System status
3
Loop OK
Green
ON
–
No fault detected on the loudspeaker
loop.
Note: This indication is immediate.
OFF
–
Fault detected on the loudspeaker loop.
4
Connection
Fault
Yellow
ON
–
The loudspeaker connections between
the last Isolator Board and the loop
return are reverse connected.
–
May indicate a connection fault in the
loop before the last Isolator Board,
depending on the number of Isolator
Boards in the loop.
OFF
–
All segments are connected correctly, if
Loop OK LED (3) is on.
–
Open circuit in the loop.
–
Loop is disabled.
Note: This indication is immediate.
8.2
Loudspeakers Line Isolator System
Operation | en
47
Bosch Security Systems B.V.
Installation and Operation Manual
2014.03 | V1.1 |