... 16/32 bits CPU and embedded real time operating system. It supports RS232 and RS485 (or RS422) ... industrial automation, telemetry, finance, POS, water supply, environment protection, post, weather, and so on.Features and BenefitsDesign for ... port: reverse-voltage and overvoltage protectionAntenna port: lightning protection(optional)Standard and ConvenienceSupport standard RS232 and RS485(or ...