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Connecting RK-MCU
Connecting Main Power Amplifier
The amplifier interface of the Master Control Unit (pictured below) is used to connect the 100V output
of the power amplifier. The Master Control Unit has a 500W internal power amplifier. The high voltage
signal can be outputted through the CH1A OUT port. A maximum of 3 external power amplifiers can
be connected to the Master Control Unit.
1
．
Under the single channel mode, if there are less than 4 zones, no connection of power amplifier
is needed.
2
．
In the single channel mode, if there are more than 4 zones and the total power rate is less than
500W, connect the device as follows:
-
Connecting the “+” and “-” of “CH1A OUT” to the corresponding ports of “CH1B IN”.
3
．
Under the single channel mode, if there are more than 4 zones and the total power rate is more
than 500W, the external power amplifier needs to be connected as the following steps:
-
Use a twisted-pair cable to connect PA
interface “CH1” of RK-MCU to the PA interface “IN”
of power amplifier.
-
Connect
the “100V” and “COM” output of power amplifier to CH1B IN of RK-MCU, “COM”
output connects to
“CH1B IN-”.
