3Com NBX 100 Installation Manual page 271

Table 41 Troubleshooting Procedures (continued)
Symptom Possible Cause
Date/time display A power surge has
on telephones is corrupted the
wrong, either Jan system time.
1, 1997 or just
random
characters
Problem with
Network Call
Processor battery.
One or both No problem.
chassis fans stop
operating
Power connector
from fan assembly
to the chassis
backplane is loose.
Fan assembly is
defective.
the browser No IP connectivity
cannot find
NetSet
Troubleshooting
Suggested Action
If the display shows Jan 1, 1997, use
NetSet to reset the system time. If the
display shows random characters, for
example 00; 0 #, you must:
1 Disconnect power to the chassis that
holds the call processor.
2 Wait 60 seconds.
3 Reconnect power to the system.
4 Use NetSet to enter the correct date
and time.
Contact your NBX 100 technical support
representative. See "Servicing the Network
Call Processor Battery" in the NBX 100
Administrator's Guide for more
information.
The chassis power supply incorporates a
load sensing mechanism. If you do not
have any cards in the chassis, the fans do
not operate.
Remove the fan assembly from the left side
of the chassis (2 Phillips-head screws).
Make sure that the fan assembly power
connector is attached. CAUTION: Shut
down the NBX 100 software and
disconnect power before removing the fan
assembly.
If the power connection is OK, replace the
fan assembly as soon as possible. In the
meantime, to help reduce heat buildup in
the chassis, you can take the following
steps:
1 Remove the top cover of the chassis.
2 Remove any hub cards and line cards
that do not have active connections.
3 Remove any blank faceplate covers.
Make sure the computer you are using to
run the browser has network connectivity.
See "Setting Up IP Connectivity for
NetSet" on page 151 for details.
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