Juniper QFX10016 Hardware Manual page 68

QFX10016 Switch Hardware Guide
44
CAUTION: Before you begin installing the switch, ensure that a licensed
electrician has attached an appropriate grounding lug to the grounding cable
that you supply. Using a grounding cable with an incorrectly attached lug can
damage the switch.
NOTE: All base configuration QFX10008 switches are shipped with three
power supplies; base configuration for QFX10016 switches are shipped with
five power supplies. Cover panels are installed over the remaining power
supply slots. You can add additional power supplies to base configuration
switches as necessary. To calculate the number of additional power supplies
needed for your specific system, see
QFX10016 Switch" on page
configurations, see QFX10008 Components and Configurations and
Components and Configurations" on page
Each AC power supply weighs approximately 7 lb (3.2 kg) and has 2 independent 16 A
rated AC inlets on the faceplate. Although each inlet provides sufficient input power to
provide full output, always connect to a dedicated AC power feed to provide redundancy.
Only one power feed is operational at a time.
QFX10000 modular switches employ automatic transfer switch (ATS) technology. The
system provides 2N source redundancy and N+1 power supply redundancy, allowing you
to use fewer power supplies than you would require in a 2N configuration. Should one
power source fail, ATS switches the power supply to the alternate source.
NOTE: For redundancy, always plug the two power cords from each power
supply:
into a UPS
INP1
into the public electricity supply
INP2
Each AC power supply has a power switch with international markings for on (
( ), a fan, and four LEDs on the faceplate that indicate the status of the power supply.
O
See Figure 26 on page 45.
"Calculating Power Requirements for a
114. For details about different switch
12.
Copyright © 2017, Juniper Networks, Inc.
"QFX10016
| ) and off