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Figure 1: A 4567 rear panel
1
Fig 1. Rear Panel Legend
1
2
Figure 2: A 4567 front panel
Fig 2. Front Panel Legend
1
2
Fig. 3 Connection Details
Max Load, 500W per zone. Unused zones must have 100k
0.25W end of line resistor installed. Max wire run, 200m.
+
-
Fault Finding
The A 4567 does not power up: Check that
power is applied to the unit either by a
240Vac plugpack or an external 24V dc
source.
Unit continues to go into alarm mode and
emits a loud continuous beep: Push the cancel
button and check the LED display. See
which zone is causing the problem (if all
zones are showing "normal" the buzzer
will not sound continuously).
The SHORT LED is coming up on a zone:
First check and see if you have installed
Page 2
Redback A 4567 Line Monitoring Unit
2
240V ac Input
24V dc Input
1
Zone Indicators 1-10
Piezo Buzzer
Amplifier
22uf capacitors
+
+
-
-
100K 0.25W end
of line resistor.
the 100K EOL resistor at the end of the line
and the 22uf BP capacitors on each of the
transformer / speakers that are installed
on that line (see diagram). If they are all
installed there must be a short across the
line, once removed the A 4567 will go into
NORMAL.
The OPEN LED is coming up on a zone:
First check and see if you have installed
the 100K EOL Resistor at the end of the
line and the 22uf BP Capacitors on each of
the transformer / speakers that are
installed on that line (see Fig 3.). If they are
3
3
Connectors (Zones 1 - 10)
2 3 4
3
Cancel Button
4
Power Led
5
Power Switch
Note: Speakers on any zone
must be wired in a 'loop in'
'loop out' configuration.
'Star' wiring on 'tee offs' are
not permitted and will cause
the system to go into alarm.
5
all installed there must be a break in the
line, once this is removed the A 4567 will
go into NORMAL.
Doc GL835
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