Allied Telesis AT-SBx908 Gen2 - Figure 54: On;Off Switch on the AT-Sbxpwrsys1-80 DC Power Supply

AT-SBx908 Gen2 Switch Installation Guide
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3. Verify that the On/Off switch on AT-SBxPWRSYS1-80 DC Power
Supply is in the Off position. Refer to Figure 54.
Figure 54. On/Off Switch on the AT-SBxPWRSYS1-80 DC Power Supply
4. Use an 8 mm wrench to remove the grounding post nut and washer,
shown in Figure 55 on page 88, from the power supply.
On/Off Switch