P83439 B
Sheet 3 of 4
OPERATING INSTRUCTIONS:
When making a live emergency announcement from the Single Circuit SAFEPATH panel, use the Four Zone Splitter’s four zone
ON/OFF switches to select the zones to which the audio will be broadcast or use the ALL CALL switch to select all of the zones. To
select a zone, slide the zone ON/OFF switch up to the on position (Figure 4). The ZONE SELECT LED associated with the zone switch
will be lit if the zone is selected. The ZONE ALARM LED’s indicate to which zones audio is currently being broadcast.
The splitter will
allow zone selection of live announcements only.
Automatic or manual alarm operation will be through all zones.
The splitter detects audio wiring faults (opens and shorts) in the non-alarm mode only. During alarm paging the splitter allows the
selection of any or all zone outputs. The ALL CALL switch overrides all zone selections. To initiate ALL CALL, slide the ALL CALL
switch up to the on position. If there is a trouble in the output wiring or a trouble in the four zone splitter circuit, the trouble condition will
be reported to the amplifier card as a speaker wiring trouble and its “SPK” LED will be lit.
+
ZONE SELECT LED'S
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ALL
CALL
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 1
ZONE 2
ZONE 3
Z
O
N
E
A
L
R
R
M
L
E
D
S'
ZONE 4
TB1
-
+
-
+
-
+
-
+
-
+
-
+
-
ALL
PWR
AUD
Z1
Z2
Z3
Z4
OPERATION
:
Use zone switches to select zones
for live announcements.
ZONE SELECT LED'S indicate the
selected zones.
Use ALL CALL to select all zones.
ZONE ALARM LED'S indicate the
active zones.
Figure 4.
TROUBLESHOOTING PROCEDURES:
1.
Be sure the unit is in a standby, non-alarm mode.
2.
Verify that all wiring is correct.
3.
To verify that the system trouble is caused by the splitter or the audio output wiring:
Measure the DC voltage at the AUD
±
terminals. If it is -12VDC
±
1V, the trouble is caused by something else in the system (See
Single Circuit SAFEPATH instruction manual for more troubleshooting procedures.) If it is -4VDC
±
1V, the trouble is caused by
the audio output wiring from the splitter.
4.
Measure the DC voltage at the zone outputs
±
terminals of the four zones of the splitter. If it is -12VDC
±
1V, the zone does not
have a wiring fault. If it is -24VDC
±
1V, the trouble is an open in the audio wiring or a missing end-of-line resistor. If it is 0VDC,
the trouble is a short in the audio wiring.
