Adapter 8-CH RS485 TO POE ETH (B) Waveshare 31078
Adapter 8-CH RS485 TO POE ETH (B) Waveshare 31078
SKU: 1088
In stock
Couldn't load pickup availability
| Warranty 12 months. Return or exchange within 14 days → | |
| Delivery Nova Poshta to branch/locker or courier to your address → | |
| Payment Pay on delivery or prepayment → |
Description
8-Ch RS485 to RJ45 Ethernet Serial Server
Industrial isolated 8-channel RS485 to RJ45 Ethernet converter with independent channel operation, DIN-rail mounting, bidirectional transparent data transmission, Modbus Gateway support, and optional PoE function.
Features at a Glance
This is an industrial multi-functional data acquisition gateway and IoT gateway with 8-channel RS485 and dual Ethernet ports (PoE version optional). The compact size, easy installation, and cost-effective price make it ideal for data acquisition, IoT gateways, security & protection, and smart instrument monitoring applications.
- 8 independent RS485 ports, each configurable with different baud rates without mutual interference
- Supports TCP server, TCP client, UDP, and UDP multicast modes
- Multiple functions combined in one device: serial server, Modbus Gateway, MQTT Gateway, RS485 to JSON, etc.
- Adopts screw terminals for stable power supply
- Dual onboard Ethernet ports with network switching function (PoE version optional)
- Multiple LEDs for real-time monitoring of device status
- Wall-mount and DIN-rail mount design, easy installation for quick deployment and expansion
Version Options
8-Ch RS485 TO ETH (B)
8-channel RS485 + Dual Regular Network Ports + Electrical Isolation
8-Ch RS485 TO POE ETH (B)
8-channel RS485 + Dual PoE Network Ports + Electrical Isolation
Specifications
| Parameter | 8-Ch RS485 TO ETH (B) | 8-Ch RS485 TO POE ETH (B) |
|---|---|---|
| Description | 8-channel RS485 + dual regular network ports + electrical isolation | 8-channel RS485 + dual PoE network ports + electrical isolation |
| Product type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Basic function | Bidirectional transparent data transmission between RS485 and Ethernet | |
| Communication interface | 8x RS485 ports, 2x Ethernet ports | |
| 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, complies with IEEE 802.3af |
| 10 / 100M auto-negotiation RJ45 connectors, 2KV surge protection | ||
| Serial port | Isolated RS485 (8 channels can receive and transmit independently at the same time) | |
| Serial port 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 function library | |
| Communication method | TCP/IP direct communication, VCOM | |
| Working mode | TCP server, TCP client (coexists with TCP server), UDP, UDP multicast | |
| Other parameters | ||
| Operating temperature | -40℃ ~ 85℃ | |
| Humidity range | 5% ~ 95% RH | |
| Dimensions | L × W × H: 93 × 103.5 × 29.7 mm | |
Supports Ethernet Port Cascading And PoE Power Supply
Onboard 2-ch Ethernet ports for communication and cascading. One can be used for serial server dual communication, and the other can be used for cascading or communicating with other devices.
Basic Function
Bidirectional transparent data transmission between 8-ch RS485 and Ethernet
Multiple Power Supply Options
Supports PoE Ethernet port power supply*, compliant with IEEE 802.3af PoE standard;
Supports screw terminal for power supply, wide voltage range DC 7V~36V
* This function is only available on the PoE version
Industrial Serial System
Industrial DIN-rail mounting design, supports wall-mount and DIN-rail mount, compact size, easy installation, cost-effective price
Choice Of Installation Method
When using DIN-rail mounting, the wall-mount brackets can be removed or installed on the back of the casing as shown in the figure below. When using wall-mount, the DIN-rail buckle needs to be removed.
DIN-rail mounting
Wall mounting
Modbus Gateway Support
Suitable for Modbus network upgrade, can be used with specific configuration software
Multiple Communication Modes
Supports TCP server / TCP client / UDP multicast / UDP modes
* Note: This module has 8 channels, and each channel supports the above functions separately
MQTT/JSON To Modbus
More flexible conversion between different protocols
When used as an MQTT gateway, devices can upload serial port data to the MQTT server through the MQTT protocol with transparent transmission. Supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The received Modbus RTU data or non-standard serial port data can be parsed in JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, devices can connect to data acquisition instruments through RS485 connections, then automatically collect data, convert the data to JSON format, and finally send it to the server. The collected data supports Modbus RTU 645 version 97 instruments, 645 version 07 instruments, and various non-standard RS485 protocols. The uploaded data format can be configured through the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, etc.
Supports Multiple Host Polling
Different network devices will be identified and responded to separately,
No more crosstalk problems when communicating with multiple network devices
Custom Heartbeat/Registration Packets
Easy for cloud communication and device identification
Supports NTP Protocol
Obtain network time information for serial output or data uploading
Multiple Configuration Methods
Supports web browser configuration, obtains dynamic IP through DHCP,
DNS protocol for connecting to domain server address
Multiple Protections, Safe And Stable Operation
Onboard power and signal isolation, can provide stable isolated voltage with high reliability and strong anti-interference ability. Built-in TVS (transient voltage suppression tube) can effectively suppress surge voltage and transient peak voltage in the circuit, lightning protection and ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, prevent over-current and over-voltage, improve anti-impact performance
Aluminum Alloy Casing
Aluminum alloy casing with sandblasting and anodic oxidation
Sturdy and durable, fashionable and comfortable to touch
Interface Introduction
Product Show
* For reference only, please refer to the packing list for detailed parts list
Outline Dimensions
Supports Mass Customization
Supports software and hardware customization
Including hardware interface, LOGO, label, casing and web page, etc.
Selection Guide
| Model | Network Port | Isolation Protection | Serial Port Type | Power Supply Methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
 RS485 TO ETH (B) |
Regular Network Port | — | Single Serial Server | Screw terminal | DC 9~24V | 87.0×36.0×59.0mm |
 RS485 TO POE ETH (B) |
Description
8-Ch RS485 to RJ45 Ethernet Serial Server
Industrial isolated 8-channel RS485 to RJ45 Ethernet converter with independent channel operation, DIN-rail mounting, bidirectional transparent data transmission, Modbus Gateway support, and optional PoE function.
Features at a Glance
This is an industrial multi-functional data acquisition gateway and IoT gateway with 8-channel RS485 and dual Ethernet ports (PoE version optional). The compact size, easy installation, and cost-effective price make it ideal for data acquisition, IoT gateways, security & protection, and smart instrument monitoring applications.
- 8 independent RS485 ports, each configurable with different baud rates without mutual interference
- Supports TCP server, TCP client, UDP, and UDP multicast modes
- Multiple functions combined in one device: serial server, Modbus Gateway, MQTT Gateway, RS485 to JSON, etc.
- Adopts screw terminals for stable power supply
- Dual onboard Ethernet ports with network switching function (PoE version optional)
- Multiple LEDs for real-time monitoring of device status
- Wall-mount and DIN-rail mount design, easy installation for quick deployment and expansion
Version Options
8-Ch RS485 TO ETH (B)
8-channel RS485 + Dual Regular Network Ports + Electrical Isolation
8-Ch RS485 TO POE ETH (B)
8-channel RS485 + Dual PoE Network Ports + Electrical Isolation
Specifications
| Parameter | 8-Ch RS485 TO ETH (B) | 8-Ch RS485 TO POE ETH (B) |
|---|---|---|
| Description | 8-channel RS485 + dual regular network ports + electrical isolation | 8-channel RS485 + dual PoE network ports + electrical isolation |
| Product type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Basic function | Bidirectional transparent data transmission between RS485 and Ethernet | |
| Communication interface | 8x RS485 ports, 2x Ethernet ports | |
| 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, complies with IEEE 802.3af |
| 10 / 100M auto-negotiation RJ45 connectors, 2KV surge protection | ||
| Serial port | Isolated RS485 (8 channels can receive and transmit independently at the same time) | |
| Serial port 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 function library | |
| Communication method | TCP/IP direct communication, VCOM | |
| Working mode | TCP server, TCP client (coexists with TCP server), UDP, UDP multicast | |
| Other parameters | ||
| Operating temperature | -40℃ ~ 85℃ | |
| Humidity range | 5% ~ 95% RH | |
| Dimensions | L × W × H: 93 × 103.5 × 29.7 mm | |
Supports Ethernet Port Cascading And PoE Power Supply
Onboard 2-ch Ethernet ports for communication and cascading. One can be used for serial server dual communication, and the other can be used for cascading or communicating with other devices.
Basic Function
Bidirectional transparent data transmission between 8-ch RS485 and Ethernet
Multiple Power Supply Options
Supports PoE Ethernet port power supply*, compliant with IEEE 802.3af PoE standard;
Supports screw terminal for power supply, wide voltage range DC 7V~36V
* This function is only available on the PoE version
Industrial Serial System
Industrial DIN-rail mounting design, supports wall-mount and DIN-rail mount, compact size, easy installation, cost-effective price
Choice Of Installation Method
When using DIN-rail mounting, the wall-mount brackets can be removed or installed on the back of the casing as shown in the figure below. When using wall-mount, the DIN-rail buckle needs to be removed.
DIN-rail mounting
Wall mounting
Modbus Gateway Support
Suitable for Modbus network upgrade, can be used with specific configuration software
Multiple Communication Modes
Supports TCP server / TCP client / UDP multicast / UDP modes
* Note: This module has 8 channels, and each channel supports the above functions separately
MQTT/JSON To Modbus
More flexible conversion between different protocols
When used as an MQTT gateway, devices can upload serial port data to the MQTT server through the MQTT protocol with transparent transmission. Supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The received Modbus RTU data or non-standard serial port data can be parsed in JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, devices can connect to data acquisition instruments through RS485 connections, then automatically collect data, convert the data to JSON format, and finally send it to the server. The collected data supports Modbus RTU 645 version 97 instruments, 645 version 07 instruments, and various non-standard RS485 protocols. The uploaded data format can be configured through the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, etc.
Supports Multiple Host Polling
Different network devices will be identified and responded to separately,
No more crosstalk problems when communicating with multiple network devices
Custom Heartbeat/Registration Packets
Easy for cloud communication and device identification
Supports NTP Protocol
Obtain network time information for serial output or data uploading
Multiple Configuration Methods
Supports web browser configuration, obtains dynamic IP through DHCP,
DNS protocol for connecting to domain server address
Multiple Protections, Safe And Stable Operation
Onboard power and signal isolation, can provide stable isolated voltage with high reliability and strong anti-interference ability. Built-in TVS (transient voltage suppression tube) can effectively suppress surge voltage and transient peak voltage in the circuit, lightning protection and ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, prevent over-current and over-voltage, improve anti-impact performance
Aluminum Alloy Casing
Aluminum alloy casing with sandblasting and anodic oxidation
Sturdy and durable, fashionable and comfortable to touch
Interface Introduction
Product Show
* For reference only, please refer to the packing list for detailed parts list
Outline Dimensions
Supports Mass Customization
Supports software and hardware customization
Including hardware interface, LOGO, label, casing and web page, etc.
Selection Guide
| Model | Network Port | Isolation Protection | Serial Port Type | Power Supply Methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
RS485 TO ETH (B) |
Regular Network Port | — | Single Serial Server | Screw terminal | DC 9~24V | 87.0×36.0×59.0mm |
RS485 TO POE ETH (B) |
