D-18APPENDIX D: TROUBLESHOOTING

Power Supply Problems

Table D-5Power Supply Problems

Problem

Possible Causes

Possible Solutions

Switch does not power up

Insufficient power supply to the Switch

If the Switch does not power-up correctly when the

 

 

 

 

ATM Module is installed, you may require a different

 

 

 

 

power supply. Refer to the Release Notes for

 

 

 

 

information about IBM power supplies.

 

System is not receiving power

Check that the power supply is plugged into the

 

 

 

 

device and power outlet.

 

Power supply malfunction

Check that the main power supply switch on the wall

 

 

 

 

is set to the ON position.

 

Blown fuse

Check, and if necessary change, the fuse. Refer to

 

 

 

 

the user guide that accompanies your Switch for

 

 

 

 

details about changing fuses and safety instructions.

 

 

 

Replace the power cable.

 

 

 

Contact IBM Technical Support.

Switch powers up but then

Insufficient power supply.

If the Switch powered-up correctly before the ATM

shuts itself down after a

 

 

 

Module was installed, there may be insufficient

few minutes

 

 

 

power available to power the Switch under heavy

 

 

 

 

traffic conditions. Refer to the Release Notes.

 

Wiring closet is too hot

Check that the room temperature does not exceed

 

 

 

 

50°C (122°F), and that the Switch is positioned

 

Vents are blocked

 

correctly so that it has adequate ventilation.

 

 

 

 

 

System fans are not operating

 

If the temperature exceeds the recommendations,

 

 

lower the thermostat and wait for the room to reach

 

 

 

 

the correct temperature range.

 

 

 

 

Restart the Switch. If the Switch turns itself off again,

 

 

 

 

contact IBM Technical Support.

Circuit breaker trips

External wiring problem

Turn the Switch off.

 

Power supply failure

 

Check with your local electricity supplier or company

 

 

electrician that there is not an external electricity

 

 

 

 

problem.

If you suspect the problem is caused by an IBM device, contact IBM Technical Support.

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IBM ATM OC-3c manual Power Supply Problems, Switch powers up but then, Shuts itself down after a, Few minutes