Juniper QFabric QFX3000-G Hardware Documentation page 94

QFX3000-G QFabric System Hardware Documentation
Related
Documentation
Slot Numbering for a QFX3008-I Interconnect Device
44
Additionally, each fan tray continues to operate indefinitely and provide sufficient
cooling even when a fan on the fan tray fails, provided the room temperature is within
the operating range. See
Device" on page 48.
Power supplies and wiring trays—There are six power supplies and two wiring trays in
a QFX3008-I Interconnect device. Each wiring tray provides input power to three power
supplies. Each power supply connects to the midplane of the chassis, which distributes
the output power produced by the power supplies to different chassis components.
(See "Midplane in a QFX3008-I Interconnect Device" on page
provides power to a subset of components on the chassis. Together, one wiring tray
and set of three power supplies can provide power to the entire system indefinitely. If
one power supply fails or is removed, a power supply from the second set of power
supplies that powers the same components continues to provide power to those
components without interruption. The redundant wiring trays provide 1+1 power feed
redundancy for the chassis. The two sets of three redundant power supplies provide
2N system power distribution redundancy for the chassis. See
QFX3008-I Interconnect Device" on page 56
Interconnect Device" on page
Control Board in a QFX3008-I Interconnect Device on page 53
Rear Cards in a QFX3008-I Interconnect Device on page 55
The QFX3008-I Interconnect device accepts eight 16-port QSFP+ front cards, two Control
Boards, eight rear cards, ten fan trays, six power supplies, and two wiring trays.
The slots on the chassis are numbered, and except for the cooling system, labels on the
chassis describe the slot numbers:
Front card slots—All eight slots for the front cards run vertically across the front of the
chassis. The label for the front cards is at the bottom of the card cage on the front of
the chassis, above the front panel display. The front card slots are labeled
7 . In the command-line interface (CLI), the front cards are described as
.
fpc 7
Control Board slots—The two slots for the Control Boards run horizontally on the rear
of the chassis. The label for the Control Board slots and the rear card slots is attached
to the rear of the chassis along the right side. The Control Board slots are labeled
and .
CB 1
Rear card slots—All eight slots for the rear cards run horizontally in the rear of the
chassis directly below the Control Board slots. The label for the Control Board slots
and the rear card slots is attached to the rear of the chassis along the right side. The
rear card slots are labeled
described as through
fpc 8
Cooling system—Eight side fan tray slots run vertically on the sides of the front of the
chassis; four on one side of the chassis behind two identical access panels, four on the
"Cooling System and Airflow in a QFX3008-I Interconnect
and "Wiring Tray in a QFX3008-I
58.
0 through 7 on the chassis. In the CLI, the rear card slots are
.
fpc 15
46.) Each power supply
"AC Power Supply in a
through
0
fpc 0 through
Copyright © 2018, Juniper Networks, Inc.
CB 0