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explanation of the RSN, refer to FTX System Administrator's Guide: General Services (R455X)
The bottom of the cabinet also has a cable opening for routing power and communications cables.
1.3b.1.3 System Ventilation
Ensure adequate air flow around the system during installation. The system requires two feet of clearance on the front and
rear of the cabinet, and a minimum of 18 inches of unobstructed area above the top of the cabinet. For cabinet ventilation
patterns and the required clearances to ensure proper cooling of internal components, See Figure 1.8.
Always ensure adequate air flow around the cabinet. Do not place objects on top of the cabinet, or where they obstruct air
vents. Obstructed air vents can cause the system to overheat and parts within it to fail.
Figure 1.8. System Ventilation
1.4 Status Lights
Status lights on individual components enable customers to narrow down a problem to a single failed component. If a
problem occurs during the system installation, strategically-placed status lights provide assistance in diagnosing the
problem.
For more detailed information on system status lights (LEDs):
Check the labels on the cabinet. They explain the meaning of the cabinet, power supply, PCI and disk LEDs.
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Refer to the Appendix in this manual●
If a red, amber, or yellow light is illuminated and remains lit during the installation process, try reseating the
component and its partner. If the component still does not come online, refer to Operating System: DNCP Series
400/400-CO (PA-8500) Operation and Maintenance Guide (RXXX) for further status-light information and
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Chapter 1