![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-8527-550x550.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-1-550x550.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-2-550x550.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-3-550x550.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-4-550x550.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-8527-80x80.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-1-80x80.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-2-80x80.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-3-80x80.jpeg)
![Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication](https://www.sunthen.com/image/cache/catalog/Relay-Module/Modbus-Rtu-1248-Channel-12V-Relay-Module-Switch-Modbus-RTU-4-Channel-Relay-Output-12V-Switch-Input-R-1971377-4-80x80.jpeg)
Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communication
- Stock: In Stock
- Model: ST230048208
- SKU: ST230048208
$5.49
Ex Tax: $5.49
Available Options
Description:
1. This is a 1/2/4/8 Channel 12V Relay Output Board Module. (option)
2. Easy to install.
3. Good quality, durable.
4. Portable design,easy to operate.
5. Low power, high precision,RS485 / TTL Communication.
6. 4 channel optocoupler isolation.
Specifications:
1. RS485 communication interface
2. TTL communication interface
3. 1/2/4/8 channel optocoupler isolation
4. A user button
5. A user LED indicator
6. A power indicator
7. Power terminal interface (12V power supply)
8. DC power carrier (12V power supply)
9. Power terminal interface (12V power supply)
Modbus RTU instruction:
Baud rate: 9600 8 NONE 1
Hexadecimal transmission
Hexadecimal reception
Operation Steps:
1. Software selection communication baud rate 9600 fixed
2. Set the address (device address used for communication)
The default setting is 1 for the instruction.
Package includes:
1 x Relay Module