Advantech ADAM-4510S-F Serial Repeater, RS-422/485 Repeater with Isolation, ADAM-4500 Series $195.30 Select
Advantech ADAM-4015-F 6-Channel RTD Module with Modbus, RS-485 Interface, 10-30VDC Power Voltage, 3,000 Isolation Voltage, 2 x 13-pin Plug-in Screw Terminal $432.60 Select