H3C CR19000-20, Installation Manual

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6-2
Item Requirements
Electricity safety
•
A circuit breaker is provided for each power cord.
•
Turn off the circuit breaker before you connect the power cord.
Power-on check
WARNING!
Locate the circuit breaker of each power input line before power-on so you can quickly shut power
off when an electrical accident occurs.
CAUTION:
•
Before powering on the router, make sure all fan tray slots are installed with fan trays correctly.
•
The router uses two switches to achieve 1+1 redundancy. Make sure two switches on the router
are off and the input voltage is normal before powering on the router. To power on the router, turn
on both switches on the router. For the requirements for the input voltage, see "Installing power
supplies."
Power-on check flowchart
Figure6-2 Power-on check flowchart
End
Normal? Troubleshoot
Power on the router
No
Yes
Normal?
Yes
Start
Check the ground
resistance value
Yes
Check the input voltage
Normal?
No
Troubleshoot
Troubleshoot
No