Figure 78: Qfx3500 Device Front; Figure 79: Qfx3500 Device Rear - Juniper QFabric QFX3000-G Hardware Documentation

Copyright © 2018, Juniper Networks, Inc.
NOTE: The standard mounting configuration for the QFX3500 device uses
a two rail mounting system. The QFX3500-RB-ACRB device model uses a
four rail mounting system for installations that need to recess the switch or
need to mount the port (rear) end of the switch forward.

Figure 78: QFX3500 Device Front

Mounting
bracket
FX350 0-48S
4Q
CO
C1
Power
supply
Fan Management
tray board

Figure 79: QFX3500 Device Rear

SFP+ QSFP+
access uplink
ports ports
The front panel of the QFX3500 chassis has an LCD panel that displays the device
hostname and the number of active alarms. See
page 122. The rear panel has 48 10-Gbps access ports and 4 40-Gbps uplink ports. See
"Rear Panel of a QFX3500 Device" on page
SFP+ Access Ports
The QFX3500 device has 48 access ports (
pluggable plus (SFP+) and small form-factor pluggable (SFP) transceivers, as well as
SFP+ direct attach copper cables, also known as Twinax cables. See Determining Interface
Support for the QFX3500 Device.
Up to 48 of the access ports can be used for SFP+ transceivers or SFP+ direct attach
copper cables. You can use 10-Gigabit Ethernet SFP+ transceivers and SFP+ direct
attach copper cables in any access port. You can use 2-Gbps, 4-Gbps, or 8-Gbps
Fibre Channel SFP+ transceivers in ports
ESD point/
serial number
ID label
Mounting
bracket
Fan Power
tray supply
SFP+
access
ports
"Front Panel of a QFX3500 Device" on
123.
through
0 47
0 through
Chapter 6: QFX3500 Overview
) that support small form-factor
5 and ports 42 through 47 .
117