Dell Force10 C300 C300 Hardware Installation Guide - Page 43

10 Removing and Replacing Components This section provides instructions for removing and replacing the following C300 components: • Removing and Replacing the Fan Tray • Removing and Replacing Power Supply Units • Removing and Replacing a Line Card When a component fails, the C300 System system triggers an alarm LED (located on the active RPM), disables or changes component Status LEDs, and sends events to the SNMP trap and show alarms table (if this feature is configured). Refer to Appendix , , on page 59 for more information on alarms. WARNING: Electrostatic discharge (ESD) damage can occur when components are mishandled. Always wear an ESD-preventive wrist or ankle strap when handling RPMs and line cards. Connect the ESD strap to the grounding plug located on the front of the chassis. Place RPMs and line cards on an antistatic surface and anti-static bags when they are not installed. Removing and Replacing the Fan Tray A fan tray failure or a failure of a fan within a fan tray is recognized by a red fan tray LED, a lit RPM alarm LED, and, if configured, an SNMP trap and alarm event. The failure requires a replacement of the entire fan tray. While you replace the fan tray, the C300 system will operate safely for approximately two (2) minutes at an ambient temperature of 77° F (25° C). To remove and replace the fan tray, you must be able to pull the fan tray completely out of the slot (at least 20 inches). WARNING: Fan blades rotate at high speeds and may cause injury if touched. Adhere to the following instructions to avoid possible injury. WARNING: To ensure proper temperature and airflow control, the fan tray must always be installed. Installing and Maintaining the C150 System 43