Juniper EX4300

CAUTION: The AC power cord for the EX4300 switch is intended for use with
this switch only. Do not use the cord with any other product.
CAUTION: Power cords must not block access to switch components.
Related
Documentation
AC Power Supply in EX4300 Switches on page 49•
• General Safety Guidelines and Warnings on page 283
• General Electrical Safety Guidelines and Warnings on page 311
• Prevention of Electrostatic Discharge Damage on page 313
• Connecting AC Power to an EX4300 Switch on page 185
DC Power Supply Specifications for EX4300 Switches
Table 67 on page 104 lists the power supply specifications for a DC power supply used in
an EX4300 switch.
Table 67: DC Power Supply Specifications for an EX4300 Switch
SpecificationsItem
•
Nominal operating voltage: –48 VDC
•
Operating voltage range: –48 VDC through –60 VDC
DC input voltage
4 A maximum at nominal operating voltage (–48 VDC)DC input current rating
550 WOutput power
Related
Documentation
DC Power Supply in EX4300 Switches on page 57•
• DC Power Supply LEDs in EX4300 Switches on page 62
Calculating the EX Series Switch Fiber-Optic Cable Power Budget
Calculate the link's power budget when planning fiber-optic cable layout and distances
to ensure that fiber-optic connections have sufficient power for correct operation. The
power budget is the maximum amount of power the link can transmit. When you calculate
the power budget, you use a worst-case analysis to provide a margin of error, even though
all the parts of an actual system do not operate at the worst-case levels.
Copyright © 2017, Juniper Networks, Inc.104
EX4300 Switch Hardware Guide