Juniper QFX5110 User Manual

Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
QFX5110 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fan Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Do Not Install Components with Different Airflow or Wattage in the
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
QFX5110 Fan Module LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
QFX5110 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
QFX5110 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
QFX5110 AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
QFX5110 DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
QFX5110 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
QFX5110 Environmental Requirements and Specifications . . . . . . . . . . . . . . . . . . 44
General Site Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Virtual Chassis Fabric Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Planning a Virtual Chassis Deployment using QFX Devices . . . . . . . . . . . . . . . . . . 48
Valid Configurations for a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . 48
Valid Configurations for a QFX5110 Virtual Chassis . . . . . . . . . . . . . . . . . . . . . 49
VC Deployment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Planning a Virtual Chassis Fabric Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
QFX5110 Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
QFX5110 Clearance Requirements for Airflow and Hardware Maintenance . . . . . 55
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
QFX5110 AC Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
QFX5110 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
QFX5110 DC Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Determining Transceiver Support for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . 61
Cable Specifications for QSFP+ and QSFP28 Transceivers . . . . . . . . . . . . . . . . . . 62
Cable Specifications for Console and Management Connections for the QFX
Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables . . . . . . . . . . 64
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 65
Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device . . . . . . 66
Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device . . . . . . 66
Chapter 8 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
USB Port Specifications for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . 71
Copyright © 2017, Juniper Networks, Inc.iv
QFX5110 Switch Hardware Guide

Juniper QFX5110 Specifications

General

Model	QFX5110
Power Supply	Dual, hot-swappable
Rack Units	1U
Operating Relative Humidity	5% to 90% non-condensing
Input Voltage	100-240 VAC
Operating System	Junos OS
Layer Support	Layer 2 and Layer 3
Virtual Chassis Support	Yes
Ports	48 x 10GbE SFP+
Jumbo Frames	9216 bytes
Operating Temperature	32°F to 104°F (0°C to 40°C)
Operating Altitude	Up to 3, 048 m
Management	CLI
AC Input Frequency	50/60 Hz
Storage Temperature	-40°C to 70°C
MTBF	Consult Juniper documentation for specific values.