Advantech BB-485OPDRI Serial Converters, Triple Isolated RS-485/422 DIN Rail Repeater 어드밴텍 직렬 컨버터 Overview The 485OPDRI isolated RS-422/485 repeater is designed for rugged industrial environments. It is UL listed and certified for use in Class 1/Division 2 locations. Powerful optical isolation on both data ports protects your equipment and data from damaging ground loops and surges. Addi..