Robust RS-232 to RS-422/485 Converter

ADAM-4520I-AE - B+B SmartWorx (B & B Electronics)

Wide Operating Temperature: -40 ~ 85° CAutomatic RS-485 data flow control3000 VDC isolation protectionSurge protection RS-485 data lineTransmission speed up to 115.2 KbpsNetworking up to 1200 meters (4000 feet)Reserved space for termination resistorsPower and data flow indicator for troubleshootingPower requirement: +10 to +48 VDCMounts easily on a DIN-rail, panel or piggyback