[Interface signal]：RS485/232/422
[Working voltage]： DC 8~28V
[Network protocol]：TCP/UDP/MQTT/HTTP
[Packaging method]： Guide rail + positioning hole installation
[Product size]：82*84*25mm
[Introduction]：NE2-H14 serial port server is used to realize bidirectional transparent transmission of data from RS485/RS232/RS422 serial port to Ethernet port. It has multiple Modbus gateway modes and MQTTC/HTTPC IoT gateway modes, which can meet the networking functions of various serial port devices/PLCs; it adopts industrial-grade design standards to ensure equipment reliability. The serial port server realizes transparent transmission of serial port data to Ethernet TCP/IP data packets. Users do not need to care about the specific details, and the protocol conversion is completed inside the device.
| Project | Description |
| working mode | TCP Server（default）、TCP Client、UDP Server、UDP Client、HTTP Client、MQTT Client |
| Socket connection | TCP server supports 5 client connections |
| network protocol | TCP/UDP、MQTT、HTTP、IPv4、DHCP、DNS |
| How to obtain IP | Static IP (default), DHCP |
| DNS domain name resolution | support |
| Domain name resolution server | 114.114.114.114 (customizable) |
| Configuration method | Web page, parameter configuration tool, AT command |
| IP address | 192.168.3.7 (customizable) |
| username | admin (customizable) |
| password | admin (customizable) |
| local port | 8886 (customizable) |
| subnet mask | 255.255.255.0 (customizable) |
| gateway | 192.168.3.1 (customizable) |
| Serial buffer | 10kByte or 1024 packets |
| Packaging mechanism | Maximum 1024Byte, 1~80 bytes idle time |
| Serial port baud rate | 600~460800 bps (default 115200) |
| data bits | 5, 6, 7, 8 (default) |
| Stop bit | 1 (default), 1.5, 2 |
| Check digit | None (default), Odd, Even |
| Working temperature and humidity | -40～+85℃, 5%～95%RH (no condensation) |
| Storage temperature and humidity | -40 ~ +105℃, 5% ~ 95%RH (no condensation) |
| Protection level | Industrial EMC Level 3 |
| Isolation voltage | 1.5KV (only supported by isolated version) |
| Electrostatic protection | Contact 4KV, air 8KV |
| burst | Differential mode 1KV, common mode 2KV |
