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● AC or DC power supply with airflow from the PSU side to the I/O side—Reverse
CAUTION:
Switches with fan airflow from the PSU to the I/O—reverse airflow—are subject to tighter
restrictions for power consumption on cables and optics that are used for 400 GbE ports. Reverse airflow
switches do not support high-power cables or optics. 400 GbE transceivers and active cables may exceed
the supported threshold. For more information, see the
PowerSwitch S5448F-ON. .
CAUTION:
Review the optics specification sheet and the switch data sheet to understand which models support
airflow from the I/O to the PSU (normal) and which support airflow from the PSU to I/O (reverse).
Luggage tag
The switch has a pull-out tag, which is known as a luggage tag, on the I/O-side of the switch. The front of the luggage tag
includes switch ID information. The back of the luggage tag includes a QRL that takes you to a How-To site where you can
watch videos about racking the switch, replacing components, configuring port channels, and so on.
1. Service tag
3. SVC Tag
5. Express service code
12
The S5448F-ON switch
High-Power Optics for SmartFabric OS10 Dell EMC
2. QRL
4. MAC Address
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