... ) and ZigBee port that can conveniently and transparently connect one device to a cellular network, allowing you to connect to your existing serial ... enhanced version)Transmit Power3.1 mw (+5dBm) /Normal mode, 6.3 mw (+8dBm)/Boost mode63 mw (+18dBm) (for enhanced ... (Extendable) Interface TypeItemContentSerial 1 RS232 port and 1 RS485(orRS422) port, 15KV ESD protectionData bits: 5, 6 ,7, 8Stop bits: 1, ...