GB9221 series instruction manual
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4.Music source input/output terminal
4 Appearance Mounting dimensions&Weight
1)
Appearance and mounting dimensions
（figure5-1）
：482.6mm * 345mm *
132.5mm (length*width*height)
OFF
ON
POWER
POWER AMPLIFIER
VOLUME
TEST
MUTE
MONITOR
TEMP
SHORT
POWER
OUTPUT LEVEL
320
465
482.6
13
2.
5
57
345
Figure 5-1 Appearance and mounting dimensions
2）weight：
<18kg
5 Wiring instructions
1） power cable connection：
a) Connect from 220V terminal to ～220V terminal using one 3-cores sheathed
cable.Pay attention to the order of N/L/E.
b) Connect the backup power supply that meets the nominal requirements to the
"Standby Power" terminal.Pay attention to positive and negative polarity.
c) Power cable diameter requirement
150W
300W
500W
AC power cables
1mm
2
1mm
2
1.5mm
2
DC power cables
1.5mm
2
1.5mm
2
2.5mm
2
2）input cables connection：
a) Connect the external source signal cable to the “Line input I”on the rear
panel. Please use high quality shielded cable.
b) Connection of fire trigger signal: connect the 24V level signal given by
the controller to the "fire trigger" terminal. Please note the positive and
negative polarity of this signal. Generally, this signal should be directly output
