41
6
.
Under the dual channel mode, if there are more than 4 zones and the total power rate is more
than 500W, 3 external power amplifiers need to be connected as the following steps:
-
Use twisted-pair cable to connect PA
interface “CH1” of RK-MCU to the PA interface “IN”
of the first power amplifier.
-
Connect the
output port “100V” and “COM” of the first power amplifier to RK-MCU input port
“CH1B”.
-
Use twisted-pair cable to connect PA interface
“CH2” of RK-MCU to the PA interface “IN”
of the second power amplifier.
-
Connect the
output port “100V” and “COM” of the second power amplifier to RK-MCU input
port “CH2A”.
-
Use twisted-pair cable to connect PA
interface “OUT” of the second power amplifier to PA
interface “IN” of the third power amplifier.
-
Connect the
output port “100V” and “COM” of the third power amplifier to RK-MCU input
port “CH2B”.
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