Manual
6-in-1 Serial Converter
6-in-1 Multifunctional Serial adater supports usb-ttl, usb-rs232, usb-rs485, ttl-232, ttl-485, 232-485 converting function, freely convert to each other
● USB specification 2.0 is compatible with Windows XP/7/8/10 32bits/ 64bits, Linux, Wince, Mac, Vista, etc.
● USB specification 2.0 is compatible with Windows XP/7/8/10 32bits/ 64bits, Linux, Wince, Mac, Vista, etc.
● The indicator lamp uses red, yellow and green three colors to indicate the working state of the equipment. Com port selects the USB (yellow light) to be on normally, the data receives the RX (red light) flicker, the data sends the TX (green light) flicker.
● Small size, high stability, easy to carry.
● Compatible with 3.3V/5V voltage input and output, can supply power to the SCM.
● Adopt reliable edge switch, 10 times toggle life, ensure stable switching of working mode.
Name | Function |
+5V | Module power, 5V input, output |
3V3 | Module power, 3.3V output |
RX | Serial data input, TTL level |
TX | Serial data output, TTL level |
232R | Serial data input, 232 level |
232T | Serial data output, 232level |
A | RS485 Signal line A |
B | RS485 Signal line B |
GND | GND |
DTR | Data terminal preparation/control flow output |
RTS | Request to send |
Parameter | Specification |
| 3.3V-5V |
| <500mA |
| 54.8mm x 18.6mm x 7.2mm |
| USB-TTL, USB-RS232, USB-RS485, TTL-RS232, TTL-RS485, RS232-RS485 |
| 300 bps to 1.5 Mbps |
| CP2102 |
For 32 bit system, please install CP210xVCPInstaller_x86.exe
For 64 bit system, please install CP210xVCPInstaller_x64.exe
Step 1. Download the driver from below link
Step 2. Unzip the file and run the installer depending to your computer type
Step 3. Install the driver by following the steps.
Right click my computer\management\Device manager\Port（COM&LPT）. You can see the generated port number, the port number is COM3.
Change port number
Sometimes we insert multiple USB serial module into our computer,and sometimes we want serial numbers to be allocated according to our expectations, so we need to manually adjust the serial number, if the above serial port 3 is changed to serial port 4, the operation steps are as follows:
Step 1: Open device manager, right-click on CP102 USB to UART Bridge Controller and select “Properties”.
Step 2: Click on Port Settings, then click on "Advanced Settings".
Step 3: Change the COM port and click OK.
This serial port conversion module selects conversion function through a two-bit dialing switch and chip switch. The function configuration is as follows:
Product functionality can be verified by USB to TTL self-loop test and USB to 232 self-loop test. Methods as below:
Step 1. Connect the TXD and RXD of the module with a DuPont cable
Step 2. Follow the instructions in the function selection to dial the corresponding DIP switch
Step 3. Then insert the module into the computer
Step 4. Use the serial debugging assistant to send data to see if there is corresponding data returned.
If the data can be received, it proves that the module is functioning normally.
Step 1. Connect the 232T and 232R of the module with a DuPont cable
Step 2. Follow the instructions in the function selection to dial the corresponding DIP switch
Step 3. Then insert the module into the computer
Step 4. Use the serial debugging assistant to send data to see if there is corresponding data returned.
If the data can be received, it proves that the module is functioning normally.
This mode test needs to cooperate with other 485 devices, such as using two 6-in-1 modules
Step 1. Take two 6-in-1 serial port modules, and set the DIP switch to USB to 485 mode
Step 2. Connect A and B of the two modules with Dupont wires, A connects to A and B connects to B
Step 3. Insert the module into the computer, open two serial debugging assistants
Step 4. Select the serial port numbers corresponding to the two 6-in-1 serial port modules respectively. Use one of them to see if the other serial port can receive the corresponding data
If the data can be received, it proves that the module is functioning normally.
Last modified 9mo ago