Cisco ASR 920 series Handbuch zur Installation - Seite 40
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Connecting Timing Cables
SUMMARY STEPS
1. Execute the eject usb0: command before removing the USB from the router.
2. Pull the memory stick from the USB port.
3. To replace the Cisco USB Flash memory stick, simply insert the module into the USB port labeled USB
MEM, as shown in the figure above. 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.
DETAILED STEPS
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 the figure above. 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.
Connecting Timing Cables
The following sections describe how to connect timing cables to the Cisco ASR 920 Series Router:
Connecting a Cable to the BITS Interface
The following steps describe how to connect a cable to the router's BITS port:
SUMMARY STEPS
1. Confirm that the router is powered off.
2. Connect one end of the cable to the BITS port using a straight-through, shielded RJ48C-to-RJ48C cable.
3. Connect the other end to the BTS patch or demarcation panel at your site.
4. Turn on the power to the router.
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
40
Installing the Cisco ASR 920 Series Router