Waveshare 8-Ch RS485 to RJ45 Ethernet Serial Server, 8 Channels RS485 Independent Operation, Optional PoE Function Rail-mount
SPECIFICATIONS
Basic Function: Bi-directional transparent data transmission between RS485 and Ethernet
Battery Included: no
Brand Name: Waveshare
Communication interface: RS485 port x 8, Ethernet port x 2
High-concerned chemical: none
Isolation Protection: Power isolation, Signal isolation
Model Number: 8-CH RS485 TO ETH (B)
Origin: Mainland China
Product Type: Serial server, Modbus Gateway, MQTT Gateway
Typical Application Fields: Education and Learning
8-Ch RS485 TO ETH (B) |
8-Ch RS485 TO POE ETH (B) |
|
8-Ch RS485 + dual common network ports + Electrical isolation |
8-Ch RS485 + dual PoE network ports + Electrical isolation |
|
Product Type |
Serial server, Modbus Gateway, MQTT Gateway |
|
Basic Function |
Bi-directional transparent data transmission between RS485 and Ethernet |
|
Communication interface |
RS485 port × 8, Ethernet port × 2 |
|
Power supply |
DC 7V ~ 36V screw terminal |
DC 7V ~ 36V screw terminal, or PoE port |
Isolation Protection |
Power isolation, Signal isolation |
|
Communication | ||
Ethernet |
RJ45 |
RJ45 with PoE support, IEEE 802.3af compliant |
10 / 100M auto-negotiation RJ45 connectors, 2 KV surge protection | ||
Serial port |
isolated RS485 (the 8 channels can receive and transmit independently at the same time) |
|
Serial specification | ||
Baudrate |
300 ~ 115200 bps |
|
Parity bit |
none, odd, even, mark, space |
|
Data bit |
5 ~ 9 bits |
|
Flow control |
N/A |
|
Software | ||
Protocol |
ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
|
Configuration |
host, web browser, device management functions library |
|
Communication method |
TCP/IP direct communication, VCOM |
|
Operating mode |
TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast |
|
others | ||
Operating temperature |
-40℃ ~ 85℃ |
|
Humidity range |
5% ~ 95% relative humidity |
|
Dimensions |
L × W × H: 93 × 103.5 × 29.7 mm |
|
Industrial Rail-mount Design, Support Wall-mount and Rail-mount Installation, Compact Size, Easy Installation, Cost-Effective

more flexible conversion between different protocols

When used as MQTT gateway, the devices can upload serial data to MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into MQTT data packet for uploading.
When used as JSON data acquisition gateway, the devices can be connected to data acquisition instruments through RS485 connection, then acquire data automatically, convert the data into JSON format, and finally post it to server. The acquired data supports Modbus RTU 645 instrument 97 version, 645 instrument 07 version, as well as sorts of non-standard RS485 protocols. The uploaded data format can be configured via host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.
Onboard power supply and signal isolation, it can provide stable isolation voltage with high reliability and strong anti-interference. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof & ESD protection. Built-in resettable fuse and protection diode to ensure stable output of current and voltage, prevents over-current and over-voltage proof, improves shock proof performance

Aluminium Alloy Enclosure With Sand Blasting And Anodic Oxidation
Solid And Durable, Fashion And Good Hand Feeling



* for reference only, please refer to the Package Content for detailed part list

Package Content
Weight: 0.021 kg
8-Ch RS485 TO ETH (B)
8-Ch RS485 TO ETH (B) x1

8-Ch RS485 TO POE ETH (B)
8-Ch RS485 TO POE ETH (B) x1

- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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