1. Ifihan
The Waveshare Industrial Serial Server RS485 to RJ45 Ethernet TCP/IP to Serial Module, Model RS485 TO ETH (B), is an industrial-grade device designed for data acquisition and IoT gateway applications. It integrates multiple functions including serial server, Modbus gateway, MQTT gateway, and RS485 to JSON conversion.
This module features RS485 and Ethernet ports, utilizes screw terminals for power input, and supports a 9~24V wide range power supply. Its rail-mount, flame-retardant case design ensures compact size and ease of installation, making it suitable for various industrial environments such as data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring.

2. Ọja Ipariview
The RS485 TO ETH (B) module facilitates bi-directional transparent data transmission between RS485 and Ethernet. It supports various communication modes and protocols for flexible integration into existing systems.

2.1. Key Interfaces
- Ibudo RS485: For serial communication with RS485 devices.
- Ibudo Ethernet RJ45: For network connectivity (TCP/IP).
- Iṣagbewọle agbara: Screw terminals for 9~24V DC power supply.
- Awọn itọkasi LED: PWR (Power), LINK (Ethernet Link), ACT (Activity).

3. Eto
3.1. Asopọ Hardware
- Ibi ti ina elekitiriki ti nwa: Connect a 9~24V DC power supply to the screw terminals (V+ and V-). Ensure correct polarity. A 12V industrial DIN-rail power supply is recommended.
- Asopọmọra Ethernet: Connect the RJ45 Ethernet port to your network switch or router using a standard Ethernet cable.
- RS485 Asopọ: Connect your RS485 device to the RS485 screw terminals (485A, 485B).

3.2. Rail-Mount Installation
The module is designed for easy installation on a DIN-rail. Simply clip the module onto a standard DIN-rail in your industrial cabinet.

3.3. Iṣeto ni ibẹrẹ
The module can be configured via a host, web browser, or device management functions library. For initial setup, it is often easiest to use a web kiri ayelujara.
- Connect your computer to the same network as the module.
- Refer to the module's documentation for the default IP address and login credentials.
- Wọle si awọn modulu web interface through a browser to configure network settings (DHCP or static IP), serial port parameters (baud rate, parity, data bits, stop bits), and operating modes.
4. Awọn ọna ṣiṣe
The module supports various communication modes to suit different application requirements:
- TCP Server: Allows multiple TCP clients to connect to the module and receive data from the serial device.
- TCP Client: The module actively connects to a remote TCP server, enabling bi-directional data transfer.
- UDP Mode: Supports UDP server and UDP client for connectionless data transmission.
- Modbus Gateway: Converts Modbus RTU/ASCII data to Modbus TCP for seamless integration with Modbus TCP networks.
- MQTT Gateway: Enables serial data upload to MQTT servers for IoT applications.
- RS485 to JSON: Converts RS485 data into JSON format for web-orisun ohun elo.


5. Awọn pato
The following table details the technical specifications of the Waveshare Industrial Serial Server RS485 TO ETH (B) module:
| Ẹka | Paramita | Iye |
|---|---|---|
| Gbogboogbo | Ọja Iru | Serial server, Modbus Gateway, MQTT Gateway |
| Ipilẹ Išė | Bi-directional transparent data transmission between RS485 and Ethernet | |
| Nọmba awoṣe ohun kan | RS485 TO ETH (B) | |
| Awọn atọkun | Ibaraẹnisọrọ ni wiwo | RS485 port x 1, Ethernet port x 1 |
| Lile Drive Interface | Àjọlò | |
| Agbara | Ibi ti ina elekitiriki ti nwa | 9 ~ 24V DC screw terminal |
| Main Power Asopọmọra Iru | dabaru ebute | |
| Idaabobo | Idaabobo Idaabobo | N/C (Not applicable for this version) |
| Àjọlò | Àjọlò | 10 / 100M auto-negotiation RJ45 connector |
| Tẹlentẹle | Tẹlentẹle ibudo | RS485 |
| Ṣàyẹ̀wò | 300 ~ 115200 bps | |
| Biti iraja | none, odd, even, mark, space | |
| Data bit | 5 ~ 9 bits | |
| Software | Ilana | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
| Iṣeto ni | agbalejo, web browser, device management functions library | |
| Ọna ibaraẹnisọrọ | TCP/IP direct communication, VCOM | |
| Ipo iṣẹ | TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast | |
| Ayika | Awọn iwọn otutu ti nṣiṣẹ | -40°C ~ 85°C |
| Ibi ipamọ otutu | -40°C ~ 100°C | |
| Ọriniinitutu ibiti | 5% ~ 95% ọriniinitutu ojulumo | |
| Ti ara | Awọn iwọn (L×W×H) | 87 × 36 × 59 mm |

6. Itọju
- Ninu: Lo aṣọ rírọrùn tí ó gbẹ láti nu module náà. Yẹra fún lílo àwọn ohun ìfọṣọ omi tàbí àwọn ohun èlò ìfọṣọ.
- Awọn ipo Ayika: Ensure the module operates within the specified temperature and humidity ranges to prevent damage and ensure optimal performance.
- Awọn imudojuiwọn famuwia: Periodically check the Waveshare official website for firmware updates to enhance functionality and security.
7. Laasigbotitusita
- Ko si Agbara (PWR LED ti pa): Verify the power supply connection and ensure the voltage is within the 9~24V DC range.
- No Network Link (LINK LED off): Check the Ethernet cable connection to the router/switch. Ensure the network device is powered on and functioning correctly.
- Ko si Gbigbe Data:
- Confirm serial port parameters (baud rate, parity, data bits, stop bits) match the connected RS485 device.
- Verify network settings (IP address, gateway, DNS) are correctly configured.
- Check the operating mode (TCP Server/Client, UDP) and ensure it aligns with your application.
- Ensure the RS485 wiring (A/B) is correct.
- Modulu Ko dahun: Try restarting the module by cycling its power. If the issue persists, perform a factory reset (refer to the full user manual for instructions on how to perform a factory reset).
8. Atilẹyin ọja ati Support
Waveshare products typically come with a standard manufacturer's warranty. For specific warranty details, technical support, or further assistance, please refer to the official Waveshare webojula tabi kan si wọn onibara iṣẹ taara.
Additional resources, including detailed user manuals, software tools, and FAQs, can be found on the Waveshare product page for the RS485 TO ETH (B) module.





