Configuring the Router

Table 3-3shows the temperature and voltage thresholds for each alarm and what to do to resolve the problem.

Table 3-3. Alarm thresholds

Alarm thresholdWhat to do when the alarm sounds

CPU temperature



Check the Router Administrator software to confirm

Warning—5°C and 65°C

 

what the alarm means. See Accessing the Router

Shutdown—0°C and 70°C

 

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



Same as above for the CPU temperature.

Warning—5°C and 45°C

 

 

Shutdown—0°C and 50°C

 

 

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

 Same as above for the VCC voltage.

Warning—12V -8% and

 

+8%

 

Shutdown—12V -10% and

 

+10%

 

 

 

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