Verifying The Router Is Powered Down - Cisco 10720 - Internet Router Installation And Configuration Manual

Disconnecting Power from the Router
Figure 5-3
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For the DC-input power supply, loosen the three locking screws for the negative, positive, and ground
Step 3
screw connectors on the DC power supply terminal block. (See
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Note

Verifying the Router Is Powered Down

To ensure that your router is properly powered down, check the following:
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Cisco 10720 Internet Router Installation and Configuration Guide
5-6
Removing the DC Power Leads from the Terminal Block
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Negative lead disconnected
Positive lead disconnected
Ground lead disconnected
DC—Disconnect the power source to the router, then disconnect the DC power leads on the router.
(See Figure 5-3.)
Remove the –48 VDC lead (black wire) from the terminal block negative connector (–).
Remove the +48 VDC lead (white lead) from the terminal block positive connector (+).
Remove the safety ground (green lead wire) from the terminal block ground connector.
Always remove the safety ground last.
LED lights are off.
Fans are not running.
Power switch is pressed to the off position (O).
Power is disconnected at the source.
Chapter 5
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Ground lead
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Positive lead
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Negative lead
Maintaining the Cisco 10720 Internet Router
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Figure 5-3.)
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