Industrial Serial Server RS485 to RJ45 Ethernet Module TCP/IP to Serial Support Rail-Mount Modbus Gateway Optional POE Function
SPECIFICATIONS
Accessory Type: Extension Board
Basic Function: Bi-directional transparent data transmission between RS485 and Ethernet
Battery Included: no
Baudrate: 300-115200 bps
Brand Name: Caturda
Choice: yes
Communication interface: RS485 port x 1,Ethernet port x 1
Communication method: TCP/IP direct communication,VCOM
Compatible With: RJ45 Ethernet
Configuration: host,web browser,device management functions library
Data bit: 5~9 bits
Dimensions: L x W x H: 87 x 36 x 59 mm
Flow control: N/A
High-concerned chemical: none
Operating mode: TCP server,TCP client(coexisting with TCP server),UDP,UDP multicast
Origin: Mainland China
Parity bit: none,odd,even,mark.space
Product Type: Serial server,Modbus Gateway,MQTT Gateway
Protocol: ETHERNET,IP,TCP,UDP,HTTP,ARP,ICMP,DHCP,DNS
Typical Application Fields: Industrial Automation
semi_Choice: yes
This is an RS485 device data acquisitor / IoT gateway designed for the industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. The module features RS485 and Ethernet port(POE function is optional), uses screw terminals for power input. Rail-mount case design, small in size, easy to install. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...
PRODUCT |
RS485 TO ETH (B) |
RS485 TO POE ETH (B) |
Product Type |
Serial server, Modbus Gateway, MQTT Gateway |
|
Basic Function |
Bi-directional transparent data transmission between RS485 and Ethernet |
|
Communication interface |
RS485 port x 1, Ethernet port x 1 |
|
Power supply |
9 ~ 24V DC screw terminal |
6 ~ 36V DC screw terminal, or PoE port |
Isolation Protection |
N/C |
Power isolation, Signal isolation |
COMMUNICATION | ||
Ethernet |
common network port |
PoE network port, support IEEE 802.3af standard |
10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection | ||
Serial port |
RS485 |
Isolated RS485 |
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 |
|
ENVIRONMENT REQUIREMENT | ||
Operating temperature |
-40℃ ~ 85℃ |
|
Storage temperature |
-40℃ ~ 100℃ |
|
Humidity range |
5% ~ 95% relative humidity |
|
Dimensions |
L × W × H: 87 × 36 × 59 mm |
|
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 MQTTdata 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.


- 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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