Juniper Networks manual Cooling System and Airflow in an EX2200 Switch

Chapter 2: Component Descriptions

Table 9 on page 15 lists the power consumed by each EX2200 switch model. The maximum power available on a PoE port is 30 W for switches running Junos OS Release 10.3 or later and 15.4 W for switches running Junos OS Release 10.2 or earlier.

Table 9: Power Consumed by EX2200 Switches

	Number of PoE-Enabled	Maximum Power	Maximum PoE Power
Model Number	Ports	Consumed by the Switch	Available
EX2200-24T	–	50 W	–
EX2200-24P	24	60 W (when no PoE power is	405 W
		drawn)
EX2200-48T	–	76 W	–
EX2200-48P	48	91 W (when no PoE power is	405 W
		drawn)
Related •	AC Power Cord Specifications for EX2200 Switches on page 47
Documentation	Rear Panel of an EX2200 Switch on page 6
•

• Power Specifications for EX2200 Switches on page 47

• Connecting AC Power to an EX2200 Switch on page 73

• Connecting Earth Ground to an EX Series Switch on page 67

Cooling System and Airflow in an EX2200 Switch

The cooling system in an EX2200 switch consists of two fans along the rear of the chassis that provide side-to-rear chassis cooling. In switch models with network ports in which PoE is available, there is an additional fan in the power supply.

Figure 8 on page 16 shows the airflow in an EX2200 switch with network ports in which PoE is not available.

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