WaveShare
Rail-mount RS485 serial server
RS485 TO ETH (B)
Common Ethernet port
RS485 TO POE ETH (B)
PoE Ethernet port + Electrical isolation
These two versions are the same in software functions, while RS485 TO POE ETH (B) is the hardware upgrade version, support PoE Ethernet port power supply, with power and signal isolation protection, which is safer for industrial applications.
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 | |
Bi-Directional Transparent Data Transmission Between RS485 And Ethernet
Easy To Combine Multi Rail-Mounted Serial Server Together, More Freely
Suitable For Modbus Gridding Upgrade, Can Be Used With 3D Configuration Software
Supports TCP Server / TCP Client / UDP Mode / UDP Multicast
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.
Different Network Devices Will Be Identified And Responsed Respectively,
No More Crosstalk Issue While Communicating With Multi Network Devices
Easy For Cloud Communication And Device Identification
Getting Network Time Info For Serial Output Or Data Upload
Supports Web Browser Configuration, Obtaining Dynamic IP Via DHCP,
DNS Protocol Connected Domain Server Address
Rail-mount and Wall-mount Support, Larger Internal Space, Supports installing various HATs and Expansion Boards.
for reference only, the Raspberry Pi 5 is NOT included.
Metal case with simple appearance design, Compatible with Most HATs/Modules and Accessories of Raspberry Pi 5
Each Cut-Out Is Completely Aligned With The Interfaces of Raspberry Pi 5, with removable reserved holes. It also has reserved antenna holes and RF outlets to reduce signal attenuation of WiFi and Bluetooth communication
Note: The reserved holes are designed with removable panels. Users can cut them open with needle-nose pliers according to the interface requirements of internal HAT or expansion board.
More flexible for industrial installation and use
Comes with rail-mount bracket, supports 35mm standard guide rail
Wall-mount installation
Prepare the screws as shown above. The following is an assembly demonstration using Raspberry Pi 5 and the official cooling fan.
1. Install the cooling fan to the Raspberry Pi 5 with 4x ④ copper standoff and 4x ⑤ nut (or ⑥ copper standoff).
2. Install the ① button cap to the hole on the bottom case, align the interface holes to install the Raspberry Pi 5, and fix the Pi via 4x ⑦ screw.
3. Align the top cover to the USB/ETH ports of Pi 5 and snap it into the bottom case, and assemble them together with 4x ⑦ screw.
4. Then install wall-mount or guide rail bracket according to your needs.
Wall mounting: use 4x ⑦ screw to install the wall-mount bracket to the position shown in the picture.
Rail mounting: use 2x ② screw to install the rail-mount bracket to the position shown in the picture.
What's in the box?
1 x Industrial Grade Metal Case (D) for Raspberry Pi 5, Larger Internal Space, Supports Installing Official Cooling Fan And Various HATs, Wall-mount and Rail-mount Support
Industrial Gigabit PoE Splitter, 5V 5A Type-C power output. IEEE 802.3af/at-compliant Gigabit Ethernet
Features at a glance
- 10/100/1000Mbps auto-negotiation Ethernet port
- 802.3af/at-compliant PoE (Power over Ethernet) standard
- Isolated SMPS (Switching Mode Power Supply), effectively protecting the powered device
- 5V DC output, suitable for powering Raspberry Pi and other small-scale network devices
- Black dull-polish metal case, sturdy and rugged, higher protection level, better heat dissipation
Specifications
| Power supply | supports 1/2(+); 3/6(-); 4/5(+); 7/8(-) powering |
|---|---|
| PoE input voltage | 37V ~ 57V |
| Type-C output | 5V 5A (MAX) |
| Cable | Cat-5 UTP |
| Standard | IEEE 802.3 af/at PoE Ethernet |
| Data rate | 10/100/1000Mbps |
| LED indicator | PoE power input indicator |
| Dimensions | 86 × 30 × 25mm (l × w × h) |
| Operating temperature | -40℃ ~ 85℃ |
MPS Control Chip Solution
High-efficiency, Safer And More Stable
Isolated circuit protection, effectively protecting the powered device
Industrial grade protection case
aluminum alloy case, sturdy and rugged, higher protection level, better heat dissipation 
Powering the Raspberry Pi or other 5V-powered network devices by PoE switch
for reference ONLY, Raspberry Pi and switch are NOT included.
What's in the box?
1 x POE splitter
Resources
Wiki: POE-SPLITTER-TYPE-C (Docs for the 2.5A unit. 5A docs not available yet)