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Catalyst 4500 Series Switches Installation Guide
78-14409-08
Chapter 1 Product Overview
Fan Assembly
Note Use a paper clip or other small, pointed object to press the Reset button.
CompactFlash Port
The CompactFlash port accepts a Type 1 CompactFlash card. You can use it for
file transfer tasks such as loading a new software image. The CompactFlash card
is optional, and can be obtained from third-party suppliers.
For more information, refer to Using the Compact Flash on the Catalyst 4000
Family Supervisor Engine III and IV at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/inst_nts/
ol_2788.htm
Fan Assembly
Note For complete environmental specifications, including airflow requirements, see
Appendix A, “Specifications.”
The system fan assembly provides cooling air for the internal chassis components.
The fan assembly is a tray of fans that you can insert and remove from the chassis
while the system is on line. The Catalyst 4503 fan assembly has two fans, the
Catalyst 4506 fan assembly has four fans, the Catalyst 4507R fan assembly has
six fans, and the Catalyst 4510R fan assembly has eight fans. The fans draw in
fresh air from one side and exhaust air on the other side. Catalyst 4503 airflow is
shown in Figure 1-13. Catalyst 4506 airflow is shown in Figure 1-14.
Catalyst 4507R airflow is shown in Figure 1-15. Catalyst 4510R airflow is shown
in Figure 1-16.
Caution You must install module filler plates on unused switching module slots to ensure
proper airflow.