... cellular network, allowing you to connect to your existing Ethernet and serial devices with only basic configuration.It has been widely used ... 16MB)SDRAM32MB(Extendable to 64MB)Interface TypeItemContentEthernet1 10/100 Mbps Ethernet port(RJ45), auto MDI/MDIX, 1.5KV magnetic isolation ... (or RS485/RS422) port, 15KV ESD protectionData bits: 5, 6 ,7, 8Stop bits: 1, 1.5, 2Parity: none, even, odd, space ...