Reference:
IMG-2100T
The IMG-2100T is an industrial level 1-port RS232/422/485 Modbus Gateway that converts between Modbus TCP/IP Protocol and Modbus RTU/ASCII Protocol. Serial Ports: 1 x DB9 male for RS232, 1 x 4-pin terminal block for RS422/RS485, Baud Rate: 50bps to 921kbps, Max. Power Consumption: 3.84W, 0.08A @ 48VDC (full loading), Operating Temperature: -40° to 75°C, TAA Compliant.