B&B INDUSTRIAL DIN RAIL 485/422 ISO REPEATERIntroducing the B&B Industrial DIN Rail 485 422 ISO Repeater a rugged, industrial grade optical repeater designed to protect, convert, and extend RS 485 and RS 422 data signals. Built for harsh environments and demanding control systems, this device provides robust optical isolation that shields critical equipment from transient surges and ground loops on your data lines. With the ability to extend a network by up to 4,000 feet (1. 2 km) and add up to