CAM150 / CAM60 – 7
COM and 25V are used to connect a string of 25V speakers.
Use Class II or Class I wiring:
COM and 70V are used to connect 70V speakers.
Use Class I wiring:
COM and 100V are used to connect 100V speakers.
Use Class I wiring:
19. 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 connects to the
positive terminal, and the
negative post connects to the
negative terminal. To minimize
the voltage drop across the
wires and prevent overheating, use at least 14 AWG
insulated wire.
+
100V70V 25V
4
COM
DC 24V
-
0 0
0
25V 25V
25V
+
100V70V 25V
4
COM
DC 24V
-
0
0
0
70V 70V
70V
+
100V70V 25V
4
COM
DC 24V
-
0 0 0
100V
100V
100V
The unit can be powered using a 24 VDC power supply
(if the rear panel DC POWER SWITCH is pressed in). This
can serve 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.
20. IEC AC INPUT
The supplied power cord connects here. Make sure
that your local AC Mains has the same voltage as your
unit, and is capable of supplying adequate current.
Voltage Conversion
The CAM150 and CAM60 can be congured to operate at
115 VAC or 230 VAC.
Be sure the VOLTAGE SELECTOR switch located on
the bottom panel 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 at
screwdriver, once the protective cover is removed. Replace
the cover afterwards.
21. AC FUSE
The fuse resides inside a little cover just below the AC
input.
Make sure that the power cord is unplugged before
removing the AC fuse. When you are sure that all is
safe, pry off the fuse cover with a at 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.
22. GROUND (EARTH) SCREW
The chassis connects to ground via the AC ground, and
normally does not need any extra ground connection.
Connections, if required, should be made by experienced,
qualied electricians.
+
100V70V 25V
4
COM
DC 24V
-
- +
24VDC
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