■ Network interface: IEEE 802.3 10/100M interface.
 

■ Serial interface: 4-port RS-232 and RS-485/422 interfaces.
 

■ Serial interface rate: 300-230.4KBPS.
 

■ Protection grade: 600W lightning strike and surge protection and

   +/-15KV ESD protection for each RS-485/422 line.
 

■ Data stream control: XON/XOFF or RTS/CTS.
 

■ Working voltage: AC100V-240V/50～60Hz
 

■ power consumption: 12W Highest.
 

■ Transmission media: twisted-pair cable or shielded cable.
 

■ Dimensions: 490mm×201mm×43mm.
 

■ Working environment: -25℃ to 70℃, relative humidity 5% to 95%.