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When you connect a Cisco device to your PC via a USB cable (typically a USB‑A to Mini‑B or USB‑A to Micro‑B cable), the Cisco device internally converts the USB data to a serial console signal. The driver on your PC tells Windows how to handle that conversion and creates a virtual COM port (e.g., COM3 or COM16 ). Once the virtual COM port is present, a terminal emulator application (like PuTTY, Tera Term, or SecureCRT) can open that port and establish a console session with the Cisco device, giving you full CLI access.
The next time you unbox a brand new Catalyst 9300 or recover a failed ISR 4451, you will not panic. You will simply plug in, fire up Device Manager, navigate to your local copy of ciscousbconsoledriver31 , and within two minutes be typing enable at the console prompt.
: You will need a valid Cisco.com account to download the file. 2. Installation Procedure usb console software 31 ciscousbconsoledriver31zip install
To establish a terminal connection to a Cisco device using its USB Mini-Type B console port, you must first install the specific manufacturer driver on your Windows PC. The provides the necessary virtual COM port interface for terminal emulators like PuTTY or SecureCRT to communicate with the hardware. 1. Download the Driver
Press on your keyboard a few times to wake up the CLI prompt. Troubleshooting Common Issues When you connect a Cisco device to your
A USB-A to USB-Mini-B cable (or USB-C depending on the device model).
Modern Cisco network hardware provides a mini-USB or USB Type-C console interface alongside the traditional RJ45 console port. When you connect a PC directly to this USB port, your operating system acts as a virtual COM port interface. The next time you unbox a brand new
Before running the installer, from your PC. This step is critical because the installer may fail if the cable is already connected and Windows has loaded an incorrect driver.
You must have administrative privileges on your Windows computer to install drivers 1.2.4 .
: A USB Type-A to Mini-B cable (or a specialized USB-to-RJ45 console cable depending on your chassis hardware).