Step 1
Execute the
eject usb0:
command before removing the USB from the router.
Example:
rommon 2 > eject usb0
rommon 2 >
If you do not run this command before removing the USB, the following error message is displayed:
rommon 2 > dir usb0:
usb_stor_BBB_comdat:usb_bulk_msg error
failed to send CBW status 34
RESET:stall
usb_stor_BBB_comdat:usb_bulk_msg error
failed to send CBW status 34
RESET:stall
usb_stor_BBB_comdat:usb_bulk_msg error
Step 2
Pull the memory stick from the USB port.
Step 3
To replace the Cisco USB flash memory stick, simply insert the module into the USB port labeled USB MEM, as shown
in figure. The flash memory module can be inserted only one way, and can be inserted or removed regardless of whether
the router is powered up or not.
This completes the USB flash memory installation procedure.
Install GNSS Module
Step 1
Remove the GNSS blank as shown in the following figure.
Step 2
Ensure that the GNSS module (A920-CM-GNSS) is upright. Insert the GNSS module parallel to the top cover of the
chassis to ensure that the module is in contact with the GNSS connector on the motherboard.
Cisco ASR-920-12SZ-A and Cisco ASR-920-12SZ-D Aggregation Services Router Hardware Installation Guide
54
Install the Router
Install GNSS Module
