4
– CXA120
CXA120 –
5
4. REAR PANEL FEATURES
6. AC FUSE
The main AC fuse provides protection if the current draw of
the unit is excessive.
Make sure that the power cord is unplugged before
removing or checking the AC fuse. When you are sure
that all is safe, undo the fuse cover with a cross-head
screwdriver, taking care not to damage the cover or fuse.
Replace the fuse only with the same type and rating as
marked on your unit.
7. IEC AC INPUT
The supplied power cord connects here. Check that the
voltage setting of the VOLTAGE CONVERSION (9) switch is
the same as your local AC Mains voltage before plugging
in the power cord. Make sure that your local AC Mains is
capable of supplying adequate current.
8. DC POWER SWITCH
If this switch is pressed in, the unit will automatically
switch to external DC battery power whenever (or if-ever)
your local AC power fails. You will need to connect an
external 24-volt battery to the DC battery terminals (12).
If the switch is out, the battery will not power up the unit.
9. VOLTAGE CONVERSION
The unit can be configured to operate at 115 VAC or 230 VAC.
Be sure this switch is set to the correct position for
the AC power supply being used, before plugging in
the power cord. The switch can be moved with a small flat
screwdriver, once the protective cover is removed. Replace
the cover afterwards.
10. INPUT SENSITIVITY
This adjusts the gain of the input section.
If you have a weak input signal, leave this switch out.
If you have a strong signal, press this switch in.
11. TEL VOLUME
This controls the volume of any signals connected to the
TELEPHONE PAGING (15) input terminals. Adjust it to suit
your taste, so any pages are heard clearly. Turn this down if
you are not using these input terminals.
12. DC BATTERY TERMINALS
These two screw terminals are
used to connect an optional
external 24 VDC battery.
Make absolutely sure
the positive post of your
battery goes to the positive
terminal, and the negative
post conncts the the negative
terminal.To minimize the
voltage drop across the wires and prevent overheating, use
at least 14 AWG wire.
The unit can be powered using a 24 VDC power supply
(if the rear panel DC POWER SWITCH is pressed in). This
serves as a backup supply in case of an AC power failure.
The unit seamlessly switches to the backup supply if
there's a power loss, allowing safety instructions and
emergency communications to continue. When both AC
power and 24 VDC power are connected, the AC power is
used and no current is drawn from the DC supply.
Note:
The unit will not charge the battery, so you should
have a dedicated charging system. Note also, that when
running on DC power, the output is lower than when
running on AC power.
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OF LOUD TECHNOLOGIES INC.
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100V
70V
25V
4
COM
DC 24V
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24VDC
12
16
15
10
11
14
13
6 7 8
9
