Model NE2-D14P is an industrial-grade serial server (dimensions: 82×84×25 mm, DIN rail or mounting hole installation). It supports bidirectional transparent transmission between RS485/RS232/RS422 and Ethernet, with built-in Modbus, MQTT Client and HTTP Client gateway modes. Compatible with TCP/UDP/MQTT/HTTP protocols, it enables efficient and reliable networking for various serial devices and PLCs.
| Specification | Details |
|---|---|
| Product Model | NE2-D14P Serial Port Server |
| Supported Serial Ports | RS485 / RS232 / RS422 |
| Network Protocols | TCP / UDP / MQTT / HTTP |
| Operating Modes | Modbus Gateway, MQTTC/HTTPC IoT Gateway |
| Installation Method | Guide rail + positioning hole |
| Dimensions | 82 * 84 * 25 mm |
| project | illustrate |
| 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 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 |

Practical Application Scenarios
1. Industrial PLC Remote SCADA Integration
By utilizing the Modbus gateway mode, the NE2-D14P enables legacy RS485/RS232 Programmable Logic Controllers (PLCs) to seamlessly connect to modern Ethernet networks, allowing for low-latency, real-time telemetry data processing in automated factory SCADA systems.
2. Smart Building Energy Metering
The device's standard guide rail installation makes it ideal for deployment inside tight electrical control cabinets. It can collect power consumption data from digital meters via RS485 and perform bidirectional transparent transmission over TCP/IP to centralized energy management dashboards.
3. Cloud-Based IoT Environmental Monitoring
Leveraging its built-in MQTTC/HTTPC IoT gateway capabilities, the server can ingest data from distributed weather or air quality sensors and push the telemetry directly to cloud platforms, ensuring reliable and protocol-converted data streams without needing edge computing intermediaries.
FAQ Section
1. What serial interfaces does the NE2-D14P support?
The server supports RS485, RS232, and RS422 serial ports, enabling bidirectional transparent transmission to Ethernet data packets for diverse industrial equipment.
2. Which network protocols are compatible with this gateway?
The device operates using standardized sets of rules for formatting and processing data [1], specifically supporting TCP, UDP, MQTT, and HTTP protocols for flexible IoT integration.
3. How is the device installed in industrial settings?
It features an industrial-grade physical design measuring 828425mm and supports both standard guide rail and positioning hole installation, ensuring robust mounting in factory control panels.


































