4
3. Hardware
Power Supply
The MP3-WS will operate on 12 to 24 volts DC.
Connect the power supply to the terminals in the
PWR
section marked:
+
&
-
If the optional amplifier is installed, A 24-volt 2.5-amp
power supply is required to produce the full 40 watts
of power. If you intend to use the same supply for
powering output devices (valves, relays, etc)
additional amperage is required.
There are two extra
+
terminals for convenience on
the output connector. The
+
terminals are internally
connected. This provides extra terminals to attach
other items requiring power.
Warning:
The
+
terminal in the
Triggers
section of
the connector
is not
the same as the
+
terminals in
the
PWR
section.
The
+
terminal in the
Triggers
section is a 12vdc
output
from the MP3-WS
’s internal 12v regulator. This
can be used to supply triggers that require power.
Output
The output is driven by a 1amp solid state driver.
The
+
terminal carries the same voltage found at the
PWR +
terminals.
This output is on any time an audio file is playing
The MP3-WS output switches the negative side of the voltage
Note:
Flyback Diodes should be installed across inductive loads
like solenoid valves.
