Right-click the "Unknown Device" under Ports or Other Devices. Select . Choose Browse my computer for drivers . Select the folder where you extracted the driver files. "No Device Found" in Terminal
Once the hardware vendor is identified, follow these installation procedures to map the cable to a virtual COM port. 1. Official Driver Download Links
Solution 1: Ensure the RJ45 end of your AWM 20251 cable is plugged firmly into the of the switch, not the Auxiliary (AUX) or Ethernet Management port.
Once the driver is installed and you know the COM port (Windows) or device file (macOS/Linux), configure your terminal software with the correct serial settings. Awm 20251 Console Cable Driver
: Re-plug the cable. Device Manager should now show a specific COM port number (e.g., COM3 ).
: The "driver" requirement stems from the integrated circuit (chipset) inside the USB housing that converts USB signals to Serial (RS232). Common chipsets found in these cables include Prolific (PL2303) , FTDI , or proprietary chips used by vendors like Cisco and Huawei . 2. Identifying the Correct Driver
stands for Appliance Wiring Material — a UL (Underwriters Laboratories) certification style. UL Style 20251 refers to a specific type of multi-conductor cable , typically: Right-click the "Unknown Device" under Ports or Other
Most modern console cables use one of two main chipsets. To find the right one, check your Device Manager
To exit screen, press Ctrl+A , then K .
When you plug in an , your computer might show an "Unknown Device" or "USB Serial Port" with a yellow exclamation mark in Device Manager. Select the folder where you extracted the driver files
It appears there may be a confusion in the naming. Here’s what is likely happening — and a full feature breakdown based on the most probable correct identification.
Look for messages like:
Check your cable’s chip by looking at the USB connector’s transparent plastic or using Device Manager (Windows) / lsusb (Linux).