Advantech
ADAM-4520-F
Isolated RS-232 (DB9) to RS-422 (4-Wire)/485 (2-Wire) Converter, 10-30VDC, Revision EE
Alt: 6-Ch RTD Module w/ Modbus
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