Datasheet

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Support for both forward (port-side exhaust) and reversed (port-side intake) airflow schemes is available. Forward
airflow is useful when the port side of the switch sits on a hot aisle and the power supply side sits on a cold aisle.
Reverse airflow is useful when the power supply side of the switch sits on a hot aisle and the port side sits on a
cold aisle.
Colored handles on each fan or power supply clearly indicate the airflow direction, as seen in Figures 2 and 3.
Figure 2. Cisco Nexus 3548 with Blue Handles Indicating Forward Airflow
Figure 3. Cisco Nexus 3548 with Red Handles Indicating Reversed Airflow
Cisco Nexus 3524 Switch
The Cisco Nexus 3524 Switch (Figure 4), the second member of the Cisco Nexus 3500 platform, is a compact 1RU
form-factor 10 Gigabit Ethernet switch providing line-rate Layer 2 and 3 switching with ultra-low latency. The switch
has 48 ports, but only 24 ports are active by default. A license is required to enable the remaining 24 ports. The
switch runs the industry-leading Cisco NX-OS Software operating system, providing customers with a
comprehensive feature set, including Algo Boost technology and functions that are widely deployed globally. The
Cisco Nexus 3524 contains no PHY chips, allowing low latency and low power consumption. This switch supports
both forward and reversed airflow schemes and both AC and DC power inputs.
Figure 4. Cisco Nexus 3524 Switch
The Cisco Nexus 3524 has the following hardware configuration:
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24 fixed SFP+ ports (1 or 10 Gbps); 48 ports total are available with a license
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Dual redundant, hot-swappable power supplies
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Four individual, redundant, hot-swappable fans
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One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector type
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Two 10/100/1000 management ports
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One RS-232 serial console port
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One USB port
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