4-13
Cisco uBR924 Router Hardware Installation Guide
OL-0338-01 (3/2000)
Chapter 4
Troubleshooting
Further Contacts
See Table 4-4 for additional elaboration.
Note
The reset switch on the back panel of the Cisco uBR924 cable access router is recessed to
prevent accidental resets of the router. To depress the switch, use a blunt object, such as a
pen or pencil point; do not use a sharp object, such as a knife or awl, because this could
permanently damage the switch and the router’s circuitry.
Further Contacts
If you experience trouble with the startup that is not resolved with the procedures and tips in this
chapter, contact field service dispatch for further assistance and instructions. Also see the
documentation available in the Broadband Cable section on CCO and the Documentation CD-ROM.
Note
Cisco recommends that a CMTS systems engineer or network administrator be available,
or on-call, to assist field service technicians or installers in troubleshooting a
Cisco uBR924 cable access router.
If you are a network administrator or systems engineer with a Cisco product covered under
warranty or a maintenance contract, contact Cisco’s Technical Assistance Center (TAC) at
800 553-2447, 408 526-7209, or [email protected].
Table 4-4
Reset Descriptions
Type of Reset
Press Reset Switch...
What Happens...
Warm
Less than 10 seconds
The router reboots, using the downstream frequencies
saved in the configuration file.
Cold
10 to 29 seconds
The router reboots the image in Flash memory, ignoring
the downstream frequencies saved in the configuration
file. The router initiates a downstream frequency search
which may take a few minutes. The new frequencies are
saved in the configuration file and are used at the next
warm reset.
Cold
More than 30 seconds
The router downloads a new image from the CMTS and
reboots, storing this image in Flash memory, assuming
coordination between the CMTS system administrator
and field personnel.
