Dimension:L 270 x W160 xH 54 (mm)；
lPower supply: AC 220V 10％ with 12V/3A switch powe；
Working current: 70 m A for standby; less than 200 m A for working condition (below 12V)；
Working Temperature: -20℃～60℃；
Humidity:5%～90%；
Protective measures: Ensuring safety of ports by means of over current protection (Anti-fuse), 75V
lightningproof, TVS safeguard and model protection；
Condition indication: green light lighting up for normal standby, yellow light flashing for normal
communication
Function Character:4-line RS485 input, 1-line RS485 expand output and 1-line RS232 output, independence for each other , do not interfered others.