... strengthens the anti-interference.4, Industrial standard design, very suitable for industrial site use;The feet are as follows: (the product ... is very nice);(2), achine tool PLC reading and writing data;(3), Monitoring reading and writing data and yuntai control;(4), household ... machine;(9), highway toll;ATM machine; and so on USB TO RS485 converter (industry-specific, 600 W lightning protection)