Port control mode 

Manual/computer manual/

programming automatic  

Total load power

＜300W

Input signal amplitude  

100～600mV

Separate control keyboard distance

＜1200m

Single port power  

＜600W

On line communication mode  

RS   232 A serial port

The input port

4 channels power input

Output port

8-way zonal port    

2-way power amplifier power supply  

Bus chip protection  

Resistant to lightning strike/surge/

electromagnetic high frequency interference

Standby current

４00mＡ