197
Chapter 15
Troubleshooting
This chapter contains suggestions on how to troubleshoot the switch if a
problem occurs.
Note
For further assistance, please contact Allied Telesis Technical
Support at
www.alliedtelesis.com/support
.
Problem 1:
All of the port LEDs and the Switch ID LED are off, and the
fans are not operating.
Solutions:
The unit is not receiving power. If the switch has an AC power
supply, try the following:
Verify that the power cord is securely connected to the power
source and to the AC connector on the back panel of the switch.
Verify that the power outlet has power by connecting another
device to it.
Try connecting the unit to another power source.
Try a different power cord.
Verify that the voltage from the power source is within the required
levels for your region.
If the switch has the DC AT-PWR250-80 Power Supply, try the following:
Verify that the DC circuit is powered on.
Verify that the On/Off switch on the power supply is in the On
position.
Verify that the positive, negative, and ground wires are properly
connected to the AT-PWR250-80 Power Supply and DC circuit.
Refer to “Wiring the DC Connector on the AT-PWR250-80 Power
Try connecting the switch to another DC circuit.
Try replacing the positive, negative, and ground wires.
Содержание AT-x930-28GPX
Страница 8: ...Contents 8...
Страница 12: ...Tables 12...
Страница 16: ...Preface 16...
Страница 82: ...Chapter 2 Virtual Chassis Stacking 82...
Страница 92: ...Chapter 3 Beginning the Installation 92...
Страница 102: ...Chapter 4 Installing the Power Supplies 102...
Страница 118: ...Chapter 7 Installing the Switch in an Equipment Rack 118 Figure 53 Attaching the Equipment Rack Brackets...
Страница 124: ...Chapter 8 Installing the Switch on a Wall 124 Figure 58 Minimum Wall Area Dimensions with the Front Panel on the Right...
Страница 214: ...Appendix A Technical Specifications 214...