Juniper EX4550 - Chapter 7 Power Specifications and Requirements; AC Power Supply Specifications for EX4550 Switches; Table 45: AC Power Supply Specifications for an EX4550 Switch

CHAPTER 7
Power Specifications and Requirements
•
AC Power Supply Specifications for EX4550 Switches on page 85
•
AC Power Cord Specifications for an EX4550 Switch on page 86
•
DC Power Supply Specifications for EX4550 Switches on page 88
•
Calculating the EX Series Switch Fiber-Optic Cable Power Budget on page 89
•
Calculating the EX Series Switch Fiber-Optic Cable Power Margin on page 89
AC Power Supply Specifications for EX4550 Switches
Table 45 on page 85 lists the power supply specifications for an AC power supply used
in an EX4550 switch.
Table 45: AC Power Supply Specifications for an EX4550 Switch
SpecificationItem
Operating range:
•
Low-voltage line—100–120 VAC
•
High-voltage line—200–240 VAC
AC input voltage
50–60 HzAC input line frequency
•
Low-voltage line—7.8 A
•
High-voltage line—3.8 A
AC input current rating
•
Low-voltage line—650 W
•
High-voltage line—650 W
AC output power
336 WMaximum System Power Requirement for EX4550-32F switches with two
EX4550-EM-8XT expansion modules installed
1146 BTU/HourSystem Thermal Output of EX4550-32F switches with two
EX4550-EM-8XT expansion modules installed = (MaximumSystem Power
Requirement ) * 3.41
NOTE: 1 W = 3.41 BTU/Hour
403 WMaximum System Power Requirement for EX4550-32T switches with two
EX4550-EM-8XT expansion modules installed
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