user manual

B-3
Cisco Wide Area Application Engine 511 and 611 Hardware Installation Guide
OL-7220-02
Appendix B Troubleshooting the System Hardware
Checking Connections and Switches
To check all the connections and switches, follow these steps:
Step 1 Power down the system, including any attached peripherals such as external
drives. Disconnect all the power cables from their electrical outlets.
Step 2 If the system is connected to a power strip (or power distribution unit), turn the
power strip off and then on again.
Is the power strip receiving power?
Ye s . Go to Step 5.
No. Go to Step 3.
Step 3 Plug the power strip into another electrical outlet.
Is the power strip receiving power?
Ye s . The original electrical outlet probably does not function. Use a different
electrical outlet.
No. Go to Step 4.
Step 4 Plug a system that you know works into the electrical outlet.
Does the system receive power?
Ye s . The power strip is probably not functioning properly. Use another power
strip.
No. Go to Step 5.
Step 5 Reconnect the system to the electrical outlet or power strip.
Make sure that all connections fit tightly together.
Step 6 Power up the system.
Is the problem resolved?
Ye s . The connections were loose. You have fixed the problem.
No. Call your service representative. (See the “Obtaining Technical Assistance”
section on page xviii.)