USB to RS232/RS485/TTL Isolated Converter, FT232RNL/CH343G
Industrial USB-to-RS232/RS485/TTL converter available with either FT232RNL or CH343G IC. Galvanic isolation for noise-sensitive industrial environments; configurable interface mode.
Pinout
- VCCTTL header
Selectable 5V or 3.3V auxiliary supply pin, 50mA, for powering the connected device when appropriate.
Type · Power - GNDinterface terminals
Ground reference for TTL/RS232/RS485 connections.
Type · Ground - TXDTTL/RS232 interface
TTL/RS232 transmit data, full-duplex serial.
Type · UART - RXDTTL/RS232 interface
TTL/RS232 receive data, full-duplex serial.
Type · UART - ARS485 terminal
RS485 differential line A for half-duplex communication.
Type · Unknown - BRS485 terminal
RS485 differential line B for half-duplex communication.
Type · Unknown
| Pin | Position | Type | Function |
|---|---|---|---|
| VCC | TTL header | Power | Selectable 5V or 3.3V auxiliary supply pin, 50mA, for powering the connected device when appropriate. |
| GND | interface terminals | Ground | Ground reference for TTL/RS232/RS485 connections. |
| TXD | TTL/RS232 interface | UART | TTL/RS232 transmit data, full-duplex serial. |
| RXD | TTL/RS232 interface | UART | TTL/RS232 receive data, full-duplex serial. |
| A | RS485 terminal | Unknown | RS485 differential line A for half-duplex communication. |
| B | RS485 terminal | Unknown | RS485 differential line B for half-duplex communication. |
Pin details
6 connections- VCCTTL header
Selectable 5V or 3.3V auxiliary supply pin, 50mA, for powering the connected device when appropriate.
Power - GNDinterface terminals
Ground reference for TTL/RS232/RS485 connections.
Ground - TXDTTL/RS232 interface
TTL/RS232 transmit data, full-duplex serial.
UART - RXDTTL/RS232 interface
TTL/RS232 receive data, full-duplex serial.
UART - ARS485 terminal
RS485 differential line A for half-duplex communication.
Unknown - BRS485 terminal
RS485 differential line B for half-duplex communication.
Unknown
Start wiring
Ethernet · UART · SPI · Shield
Confirm the data interface matches your host board.
Module pins: VCC, GND, TXD, RXD. Schematik maps them to your board in the app.
Wired comms
118 other optionsW5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.
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