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Cisco Catalyst 4900M Switch Installation Guide
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Chapte r 3 Installing the Switch
Connecting Power to the Catalyst 4900M Switch
Figure 3-4 Grounding Pad Location
Warning
The plug -sock et combinatio n must be accessible at all times bec ause it serves as the main
disconnecting devic e.
Statement 1019
Step 2 Plug the power cords into the power supplies. Refer to Figure 3-5 for the plug location.
Figure 3-5 AC-Input Power Supply
Step 3 Connect the other end of the power cords to an AC power source. If both power supplies will be used,
make sure they are on different source AC circuits.
Step 4 Turn the power switches to the ON p osition.
Step 5 Verify power supply operation by lo oking at the power supply LEDs:
• The INPUT OK LED is lit green when the source AC voltage is within operating limits.
• The OUTPUT OK LED is lit green when the measured DC output from the power supply is within
operating limits.
1 Grounding pad
1
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1 Captive screw 4 AC power connection
2 Handle 5 INPUT OK LED
3 On/off switch 6 OUTPUT OK LED
