... Modem With RS232 RS485 for Meter Reading Temperature and Humidity Monitoring (F2103I)Designed with industrial grade, with TCP/IP stack, supports ... Command, RS232/485, remote configuration and control, with embedded Operation System, such as LINUX and WINDOWS OS, can be used as ... 2/2+4. Support SMS and data function B. Hardware System 1. MCU High-powered MCU, 100M 2.Interface RS232/RS485 ...