AT-x950-28XSQ Switch and VCStack Installation Guide
43
Installing two power supplies adds power redundancy.
The power supplies are installed in the PSU A and PSU B slots in
the rear panel of the chassis. If you are installing only one power
supply, Allied Telesis recommends installing it in PSU A slot
because that slot does not come with a blank slot cover.
The switch does not come with power supplies. They must be
purchased separately.
The power supplies are field-replaceable and hot-swappable. If the
switch has two power supplies and one fails, you do not have to
power off the operational power supply to replace the failed unit.
LEDs
The two LEDs on the front panel of the power supply are described in
Table 13.
Table 13. LEDs on the AT-PWR600 Power Supply
Green LED
Amber LED
Description
Solid green
Off
The power supply is operating
normally.
Blinking
green
Off
The power supply is in the standby
mode.
Solid green
Blinking amber
The power supply is experiencing a
warning condition, but is still
operating. Possible causes are listed
here:
- The power supply is overheating.
- The speed of it’s fan is too low.
- Its output current is too high.
- The input voltage from the AC
power source is too low.
Off
Solid amber
The power supply shut down because
it experienced a fault condition.
Possible causes are listed here:
- The power supply overheated.
- The power supply’s fan stopped or
was too slow.
- The output current from the power
supply to the switch was too high.
- The input voltage from the AC
power source was too low.
Содержание AT-x950-28XSQ
Страница 8: ...Contents 8 ...
Страница 12: ...Tables 12 ...
Страница 16: ...Preface 16 ...
Страница 62: ...Chapter 2 Virtual Chassis Stacking 62 ...
Страница 80: ...Chapter 3 Beginning the Installation 80 ...
Страница 90: ...Chapter 4 Installing Power Supplies and Optional XEM2 Line Card 90 ...
Страница 102: ...Chapter 6 Installing the Switch in an Equipment Rack 102 ...
Страница 106: ...Chapter 7 Installing the Switch on a Wall 106 Figure 67 Minimum Wall Area Dimensions with the Front Panel on the Right ...
Страница 118: ...Chapter 7 Installing the Switch on a Wall 118 ...
Страница 146: ...Chapter 8 Configuring Switches for Stacking 146 ...
Страница 158: ...Chapter 9 Cabling the Networking Ports 158 ...
Страница 164: ...Chapter 10 Replacing Modules 164 Figure 94 Tightening the Two Screws on the Line Card Blank Panel ...
Страница 169: ...AT x950 28XSQ Switch and VCStack Installation Guide 169 Figure 100 Installing the Blank Power Supply Cover ...
Страница 180: ...Chapter 11 Troubleshooting 180 ...
Страница 190: ...Appendix A Technical Specifications 190 ...