Connect the mini-USB end of your cable to the ASR router's console port and the standard USB end to your PC.
The following procedure applies to Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, and Windows 11. The steps are nearly identical across all versions, though the exact appearance of dialog boxes may vary slightly.
Once the driver is installed, configure your terminal emulator (PuTTY, TeraTerm, SecureCRT) with the following settings:
When you download asr-9xx_usbconsole_drivers.zip from Cisco and extract the compressed archive, you will find the following directory structure:
To help narrow down any remaining connection issues, let me know: asr9xxusbconsoledriverszip
Modern Cisco routers feature a USB Type-B console port alongside the traditional RJ-45 serial port. To use this interface, your management computer requires specific software initialization files, commonly searched for online as .
Windows will read the .inf configuration file, install the virtual COM port driver, and assign a distinct port number (e.g., COM4 ). 2. Deployment on macOS and Linux
: Linux users often do not need to compile drivers; the kernel’s cdc_acm or ftdi_sio modules handle the ASR9k USB console automatically.
Once you download and extract asr9xxusbconsoledriverszip , you will typically find the following structure: Connect the mini-USB end of your cable to
While asr9xxusbconsoledrivers.zip is Windows-centric, the archive sometimes includes instructions for other OSes.
dmesg | grep -i usb
Network administrators frequently interact with Cisco ASR 900 Series routers (including the ASR 901, ASR 902, ASR 903, and ASR 907) for aggregation, mobile backhaul, and enterprise routing. Managing these devices requires a reliable console connection.
This driver package is purpose-built for the Cisco ASR 900 architecture. It establishes clean asynchronous serial emulation for several chassis variants and interface modules, including: Once the driver is installed, configure your terminal
Select , navigate to your extracted folder, and click Next .
Secure the driver bundle directly from official enterprise sources to avoid malware. Navigate to the official Cisco Software Download portal. Search for .
) often requires a specific USB console driver to bridge the gap between your modern laptop and the router’s management port. While standard RJ-45 console cables are common, many newer ASR models utilize a USB Type-A or Mini-B console interface that requires a virtual COM port driver to function. Driver Requirements and Downloads
Once you have extracted the asr9xxusbconsoledrivers.zip file, you can begin the installation. The following detailed steps are based on official Cisco procedures.