For more detailed community-driven solutions, this Cisco Community Discussion on ASR 920 USB Console Drivers is a highly helpful resource.
To connect to a Cisco ASR 900 series router (such as the ) via a USB console port, you typically need the Cisco USB Console Driver The official driver package, often referred to as asr9xxusbconsoledrivers.zip cisco_usbconsole_driver_3_1.zip
Any specific you see in your Device Manager or terminal software?
While this article focuses on the USB console driver, it is worth noting that most ASR 9000 routers still include a . If you have an RJ45-to-DB9 rollover cable and a USB-to-serial adapter (e.g., from Startech or Tripp Lite), you may bypass the USB driver requirement entirely. However, the RJ45 port is often disabled by default in newer IOS XR versions, requiring a configuration change via the USB console first. asr9xxusbconsoledriverszip
Compact, cell-site deployment routers.
If both the RJ-45 and the Mini-USB console cables are connected simultaneously, the Mini-USB port takes priority. Unplug the Mini-USB cable if you are trying to use the RJ-45 port.
on your PC. Under "Ports (COM & LPT)," look for "Cisco Virtual Com" or "USB UART" to identify which COM port has been assigned (e.g., COM4). Configure Terminal If you have an RJ45-to-DB9 rollover cable and
Look under the software category labeled or USB Interfaces .
The Cisco ASR 9000v and ASR 9000v‑V2 operate as virtual extension shelves and are not standalone devices. They require a physical ASR 9000 series router for management. If your PC never recognizes the virtual platform over USB, this is expected behavior — the virtual platform does not have a physical USB console port.
This executable is an InstallShield Wizard that installs the driver for the . When the installation is complete, you will see a confirmation message stating that this device driver has been successfully installed, indicating that the USB console is ready for use. If both the RJ-45 and the Mini-USB console
Open your preferred terminal emulator software (such as PuTTY, SecureCRT, or Tera Term). Configure the connection settings: Speed / Baud Rate: 9600 bits per second Data Bits: 8 Stop Bits: 1 Parity: None Flow Control: None
On Linux, the device may appear as /dev/ttyUSB0 but be inaccessible to non-root users. sudo chmod 666 /dev/ttyUSB0 (temporary) or add your user to the dialout group: sudo usermod -a -G dialout $USER .
Using asr9xxusbconsoledrivers.zip ensures that the USB console port enumerates correctly as a standard COM port (e.g., COM3 , COM5 ), allowing your terminal emulator to communicate with the router’s ROMMON and IOS XR CLI.