Juniper QFabric QFX3000-G Hardware Documentation page 362

QFX3000-G QFabric System Hardware Documentation
Table 128: DC Power Supply Electrical Specifications (continued)
Item
Power supply output
Output holdup time
Related
Documentation
AC Power Cord Specifications for EX4200 Switches
312
NOTE: The DC power supply in EX4200 switches does not support Power
over Ethernet (PoE); you can use either an external power injector or an AC
power supply to supply power to PoE devices that you connect to the switch.
NOTE: For DC power supplies, we recommend that you provide at least 7.5 A
at 48 VDC and use a facility circuit breaker rated for 10 A minimum. Doing so
enables you to operate the switch in any configuration without upgrading
the power infrastructure, and ensures that the switch functions at full capacity
using multiple power supplies.
AC Power Cord Specifications for EX4200 Switches on page 312
Power Supply in EX4200 Switches on page 188
General Safety Guidelines and Warnings on page 329
General Electrical Safety Guidelines and Warnings on page 359
A detachable AC power cord is supplied with the AC power supplies. The coupler is type
C13 as described by International Electrotechnical Commission (IEC) standard 60320.
The plug at the male end of the power cord fits into the power source outlet that is
standard for your geographical location.
CAUTION: The AC power cord provided with each power supply is intended
for use with that power supply only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 meters in
length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA
75, 5-2.2) and 210-52 and Canadian Electrical Code (CEC) Section 4-010(3).
The cords supplied with the switch are in compliance.
Table 129 on page 313 gives the AC power cord specifications for the countries and regions
listed in the table.
Specification
190 W
1 ms minimum
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