- Description
Details
2-CH UART to Ethernet Converter, serial port transparent transmission module
2-CH UART TO Ethernet Converter
Serial port transparent transmission
Features at a glance
The 2-CH UART TO ETH provides an easy way to communicate between UART TTL and RJ45 Ethernet, allowing bi-directional transparent data transmission. It is easy to use, along with features like fast data rate, low power consumption, high stability, suits applications such as safety & security, IoT, and so on.
- Embedded Ethernet MAC and PHY layers
- Bi-direction transparent data transmission between UART and Ethernet
- 10/100M, full-duplex/half-duplex auto-negotiation Ethernet interface, 802.3-compliant
- Auto-MDI/MDIX, detect and switch cable type automatically
- Supports DHCP auto-obtained IP and DNS domain access
- Network parameter configuration like chip operating mode, port, IP, via host computer software or UART command
- Four operating modes: TCP CLIENT, TCP SERVER, UDP CLIENT, UDP SERVER
- 2-CH UART concurrent operation, standalone transparent transmission for each channel
- Full-duplex or half-duplex UART communication, supports RS485 RX/TX auto switch
- Supports virtual serial port software (provided)
- KEEPALIVE mechanism support
- Comes with development resources and manual (examples for Pico/Raspberry Pi/Arduino/STM32)
Specifications
| Operating voltage | 3.3V/5V | Operating current | 140mA |
|---|---|---|---|
| Operating mode | TCP/UDP | UART baudrate | 300bps ~ 921.6Kbps |
| UART TTL level | 3.3V / 5V compatible | Storage temperature | -55℃ ~ 125℃ |
| Operating temperature | -40℃ ~ 85℃ | Dimensions | 53.00 × 22.00mm |
control interface
supports host boards including Raspberry Pi/Arduino/STM32...
Application example
Bi-direction transparent transmission between UART TTL and wired Ethernet
Extend the communication distance for serial devices
Manage multi serial client devices remotely via one web server
Manage serial server remotely via multi web clients
What's On Board
- UART 1 connection status indicator
- UART 2 connection status indicator
- Power indicator
- CH9121 control pins
- CH9121 driver
- AMS1117-3.3V power supply IC
- RT9193-18GB power supply IC
- Ethernet port
Pinout definition
| 5V / 3V3 | power positive, use any pin of 5V/3.3V pins for power supply |
| GND | ground |
| RST1 | external reset input, low active |
| RESET | restore to factory setting, detected when chip poweron, low active |
| TXD1 | asynchronous UART 1 data output (enabled by default) |
| TXD2 | asynchronous UART 2 data output (disabled by default) |
| RXD1 | asynchronous UART 1 data input (enabled by default) |
| RXD2 | asynchronous UART 2 data input (disabled by default) |
| CFG0 | UART config mode, low level to enter configuration, high level to exit configuration |
| RUN | Operating status indicating pin |
| DIR1 | UART 1 RS485 RX/TX switch (connects to external RS485 controller) |
| DIR2 | UART 2 RS485 RX/TX switch (connects to external RS485 controller) |
Outline Dimensions
*measured manually, for reference only
Resources & Services
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Selection guide
| RS485 TO ETH (B) | RS485 TO POE ETH (B) | RS232/485/422 TO ETH (B) | RS232/485/422 TO POE ETH (B) | 2-CH RS485 TO ETH (B) | 2-CH RS485 TO POE ETH (B) | RS232 RS485 TO ETH (B) | RS232 RS485 TO POE ETH (B) | |
|---|---|---|---|---|---|---|---|---|
| Description | Common network port | PoE network port + Electrical isolation | Multi interfaces + common network port + Electrical isolation | Multi interfaces + PoE network port + Electrical isolation | 2-Ch RS485 + Common network port + Electrical isolation | 2-Ch RS485 + PoE network port + Electrical isolation | RS232 + RS485 + Common network port + Electrical isolation | RS232 + RS485 + PoE network port + Electrical isolation |
| Product Type | Serial server, Modbus Gateway, MQTT Gateway | |||||||
| Serial Port Type | Single serial port server | RS232/485/422 choose one, single serial port server | Dual serial ports server | |||||
| Power Supply methods | Screw terminal | |||||||
| - | PoE port | - | PoE port | - | PoE port | - | PoE port | |
| - | DC 5.5 power port | |||||||
| Voltage Range | DC 9~24V | DC 6~36V | DC 6~45V | |||||
| Isolation Protection | Without isolation | Power isolation, Signal isolation | ||||||
| Communication | ||||||||
| Ethernet | RJ45 network port | RJ45 with PoE support, IEEE 802.3af compliant | RJ45 network port | RJ45 with PoE support, IEEE 802.3af compliant | 2-ch RJ45 network port | 2-ch RJ45 with PoE support, IEEE 802.3af compliant | 2-ch RJ45 network port | 2-ch RJ45 with PoE support, IEEE 802.3af compliant |
| 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection | ||||||||
| Serial port | RS485 | Isolated RS485 | Isolated RS232/485/422 (choose one, only one interface can be used for communication at the same time) | 2-ch Isolated RS485 (the 2 channels can receive and transmit independently at the same time) | Isolated RS232 + Isolated RS485 (the 2 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 | |||||||
| Environment requirement | ||||||||
| Operating temperature | -40℃ ~ 85℃ | |||||||
| Humidity range | 5% ~ 95% relative humidity | |||||||
| Dimensions (L × W × H) |
87.0×36.0×59.0mm | 88.7×72.5×24.2mm | 78.0×72.5×24.2mm | |||||
Weight: 0.012 kg
Quick Overview
- 2-CH UART TO ETH x1
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