Juniper Networks EX8208 Planning Power Requirements, AC Power Specifications for EX8200 Switches

CHAPTER 7

Planning Power Requirements

•AC Power Specifications for EX8200 Switches on page 109

•DC Power Specifications for EX8200 Switches on page 110

•Power Requirements for EX8208 Switch Components on page 111

•AC Power Cord Specifications for an EX8200 Switch on page 112

•Calculating Power Requirements for an EX8208 Switch on page 114

•Calculating the EX8200 Switch Fiber-Optic Cable Power Budget on page 120

•Calculating the EX8200 Switch Fiber-Optic Cable Power Margin on page 121

AC Power Specifications for EX8200 Switches

EX8200 switches can use either AC or DC power supplies.

Table 42 on page 109 lists the AC power specifications for a 2000 W power supply used in EX8200 switches.

Table 42: Power Specifications for a 2000 W AC Power Supply in an EX8200 Switch

Item	Specifications
AC input voltage	Operating range:
	• Low-voltage line—100–120 VAC
	• High-voltage line—200–240 VAC
AC input line frequency	50–60 Hz
AC input current rating	•	Low-voltage line—13.8 A
	•	High-voltage line—12 A

AC output power	•	Low-voltage line—1200 W
	•	High-voltage line—2000 W

Table 43 on page 110 lists the AC power specifications for a 3000 W power supply used in EX8200 switches.

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