Virtual COM Port Driver

TS-990S, TS-890S, TS-590SG, TS-590S, TH-D72A/E
KPG-22U, KPG-46U, KPG-186U
Virtual COM Port Driver

Last updated : June 14, 2023

Introduction

	Thank you for choosing the KENWOOD transceivers. You can connect your TS-990S, TS-890S, TS-590SG, TS-590S, or TH-D72A/E to a PC via a USB cable, or you can connect your TH-K20A/E, TH-K40A/E, TM-281A/E, TM-481A, or other transceivers to a PC via the KPG-22U/46U/186U programming cables by installing the virtual COM port driver in the PC, and then utilize the Radio Control Program, Memory Control Program, or other software we have provided.
	This virtual COM port driver installation program is provided by Silicon Laboratories Inc.
	After reading through the following explanations, feel free to download and install the software.

Operating Environment

1.	Operating System (OS) Windows^® 10 Windows^® 11
2.	Peripheral Devices USB 2.0 interface.

Installing the virtual COM port driver
	ATTENTION: Do not connect the device to a PC before installing the virtual COM port driver.
	If the device is connected to a PC before installing the virtual COM port driver, an incompatible driver may be installed and the PC may not be able to communicate properly with the target device. In this case, delete the incompatible driver, install the correct driver, and then connect the target device to the PC again.
	Extract the downloaded file "CP210x_Universal_Windows_Driver.zip" into a designated folder.In the designated folder, a folder labeled "CP210x_Universal_Windows_Driver" will be created. In the created folder "CP210x_Universal_Windows_Driver", right-click the "silabser.inf" and select "Install (I)", then follow the instructions that appear on the display to install the virtual COM port driver.

Connecting the device to a PC
	Turn the transceiver power ON, then connect it to a PC via a connection cable for the transceiver. The PC will detect new hardware. The installation of the device driver software will start automatically. If a reboot request appears, please reboot the PC.

Confirming the COM port number

Open the "Device Manager" to confirm which COM port number is assigned for connection with the device.
(Confirm the COM port number after turning on the transceiver and connecting the transceiver to the PC using a USB cable, or after connecting the KPG-22U/46U/186U to the PC.)

1. Right-click the Windows^® [Start] button.
2. Click [Device Manager] in the displayed window.
3. [Device Manager] window will appear.

Click “Ports (COM & LPT)” to extend it, then you can find “Silicon Labs CP210x USB to UART Bridge (COMxx)”.The “COMxx” number is different depending on your PC.
In the above example, “Silicon Labs CP210x USB to UART Bridge (COM3)” is listed. This means that COM3 is assigned for the connection with the transceiver.
Select this port number in the configurations for communication in the software you are using.

Note:
When connecting a TS-890S transceiver to the PC, 2 virtual COM ports are assigned as follows.

In the TS-890S Menu settings, these 2 virtual COM ports are defined as [Virtual "Standard" COM Port] and [Virtual "Enhanced" COM Port].

These "Standard" and "Enhanced" virtual COM ports are distinguished as follows.
•Double-click on these in the Device Manager to display the respective Properties windows.
•Select the "Details" tab and then select "Location Paths" (or "Rutas de acceso de ubicación":Español, "Chemins d'accès des emplacements":Français, "Speicherortpfade":Deutsch, "Percorsi":Italiano, "Locatiepaden":Nederlands) from the Property drop-down menu.
•Move the mouse cursor to the line displayed in the "Value" column (the top line if multiple lines are displayed) and check the number in the parenthesis on the right end of the character string.

The port displayed with the number (1) is the virtual COM (Standard) port of the transceiver.

In the display example above, the virtual "Standard" COM port is assigned to COM3.
The port displayed with the number (2) is the virtual COM (Enhanced) port of the transceiver.

In the display example above, the virtual "Enhanced" COM port is assigned to COM4.

Please also refer to the TS-890S Instruction manual for details.

If you agree with the details listed above, click the following link to download the virtual COM port driver installation program.

Virtual COM port driver installation program for Windows^® 10/11：
"CP210x_Universal_Windows_Driver.zip"(v11.3.0) 280KB download

Caution!
Please do not use the virtual COM port driver v11.4.0 released by Silicon Laboratories on July 29, 2024. A problem has been confirmed where the corresponding COM port becomes invisible in our PC applications. This problem does not occur with v11.3.0, which can be downloaded from the link above. If you encounter this problem with v11.4.0 downloaded from the Silicon Laboratories website, you can avoid it by reverting to v11.3.0. (As of August 1, 2024)

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