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Cisco Catalyst 3560E-24TD Installationsanleitung Seite 28

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Seitenansicht 27
1-18
Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
OL-9774-04
Chapter 1 Product Overview
Rear Panel Description
Figure 1-10 shows the airflow patterns for the 24- and 48-port switches. The blue arrow shows cool air
flow, and the red arrow shows warm air flow.
Figure 1-10 24- and 48-Port Switch Airflow Patterns
The Catalyst 3560E-12D switch has four internal hot-swappable 12-V fan modules that insert in the
switch rear panel. The Catalyst 3560E-12SD switch has two internal hot-swappable 12-V fan modules
that insert in the switch rear panel. The air circulation system consists of the fan module and the power
supply modules.
Each fan module (part number C3K-FAN-16CFM=) has a green LED that shows that it is operating. The
LED is off when there is a fan failure. The Catalyst 3560E-12D or 3560E-12SD switch continues to
operate when there is one failed fan, either a power-supply fan or a chassis cooling fan. If one fan fails,
the switch returns an error message. If a second fan fails, either a power supply fan or a chassis cooling
fan, the switch returns an error message, writes a failure log to flash memory, and shuts down.
Figure 1-11 shows the airflow patterns for the Catalyst 3560E-12D switch. The blue arrow shows cool
air flow, and the red arrow shows warm air flow.
Figure 1-11 Catalyst 3560E-12D Switch Airflow Patterns
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