Follow the standard installation prompts. Once completed, restart your workstation to ensure the virtual COM stack initializes perfectly. Verifying and Configuring the Connection
The file is a critical software package for network engineers working with the Cisco ASR 900 series routers, including the ASR 901 , ASR 903 , and ASR 920 . It contains the specific USB-to-serial device drivers required to establish a console connection via the mini-USB or USB-A console ports found on these devices. Driver Overview
The Cisco USB console typically appears as /dev/ttyACM0 (or similar). No additional driver installation is required. You can connect using screen or minicom . For example:
Modern laptops rarely have built-in RS-232 serial ports. The USB console port on Cisco ASR routers provides a direct way to connect via a standard USB cable, but the computer needs the driver to "translate" that USB connection into a virtual Where to Find the Drivers
screen /dev/tty.usbmodem1a21 9600
: Drivers are available for Windows (32-bit and 64-bit), Mac OS X , and Linux . Physical Connection Guide
If you cannot locate the driver, you can also browse to the “Drivers” section under your router’s support page. In some cases, Cisco also provides the USB console driver on the download pages of other router models that share the same USB console hardware, such as certain ISR (Integrated Services Router) platforms, but it is always best to download from your specific router’s page.
To install the ASR9xx USB Console Driver:
The asr9xxusbconsoledriverszip file is a compressed archive containing the virtual COM port (VCP) drivers. These drivers allow your computer’s operating system to recognize the router's USB connection as a standard serial COM port, enabling terminal emulation software to connect to the Command Line Interface (CLI). Where to Safely Download the Driver
Follow the standard installation prompts. Once completed, restart your workstation to ensure the virtual COM stack initializes perfectly. Verifying and Configuring the Connection
The file is a critical software package for network engineers working with the Cisco ASR 900 series routers, including the ASR 901 , ASR 903 , and ASR 920 . It contains the specific USB-to-serial device drivers required to establish a console connection via the mini-USB or USB-A console ports found on these devices. Driver Overview
The Cisco USB console typically appears as /dev/ttyACM0 (or similar). No additional driver installation is required. You can connect using screen or minicom . For example: asr9xxusbconsoledriverszip
Modern laptops rarely have built-in RS-232 serial ports. The USB console port on Cisco ASR routers provides a direct way to connect via a standard USB cable, but the computer needs the driver to "translate" that USB connection into a virtual Where to Find the Drivers
screen /dev/tty.usbmodem1a21 9600
: Drivers are available for Windows (32-bit and 64-bit), Mac OS X , and Linux . Physical Connection Guide
If you cannot locate the driver, you can also browse to the “Drivers” section under your router’s support page. In some cases, Cisco also provides the USB console driver on the download pages of other router models that share the same USB console hardware, such as certain ISR (Integrated Services Router) platforms, but it is always best to download from your specific router’s page. Follow the standard installation prompts
To install the ASR9xx USB Console Driver:
The asr9xxusbconsoledriverszip file is a compressed archive containing the virtual COM port (VCP) drivers. These drivers allow your computer’s operating system to recognize the router's USB connection as a standard serial COM port, enabling terminal emulation software to connect to the Command Line Interface (CLI). Where to Safely Download the Driver You can connect using screen or minicom