Cisco 4490 - Manual (Page 68)

Chapter 4 Troubleshooting the System Hardware
Checking Connections
4-4
Cisco Global Site Selector 4490 Hardware Installation Guide
78-15755-02
6. Power up the system.
Is the problem resolved?
– Yes. The connections were loose. You have fixed the problem.
– No. Call your service representative. Refer to the Preface .