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Configuring the Router
3-17
Table 3-3 shows the temperature and voltage thresholds for each alarm and what to do to
resolve the problem.
Table 3-3. Alarm thresholds
Alarm threshold What to do when the alarm sounds
CPU temperature
Warning—5°C and 65°C
Shutdown—0°C and 70°C
!
Check the Router Administrator software to confirm
what the alarm means. See Accessing the Router
Administrator Software on page 3-1.
!
Check that the fan is running and is not obstructed.
You can feel if the fan is running by placing your
hand on the rear panel of the router near the power
switch.
!
Check the ambient temperature and lower it, if
needed. Ambient temperature should be less than
45°C.
On-board temperature
Warning—5°C and 45°C
Shutdown—0°C and 50°C
!
Same as above for the CPU temperature.
VCC voltage
Warning—5V -3.5% and
+6.5%
Shutdown—5V -6.5% and
+10%
!
Check the Router Administrator software to confirm
what the alarm means. See Accessing the Router
Administrator Software on page 3-1.
!
If it is a warning alarm, let the router continue to
operate.
!
If it is a shutdown alarm, turn off the power to the
router and send it for service.
12V voltage
Warning—12V -8% and
+8%
Shutdown—12V -10% and
+10%
!
Same as above for the VCC voltage.