Figure30:Back-to-FrontAirflow.......................................82
Figure31:Front-to-BackAirflow.......................................82
Figure 32: Clearance Requirements for Airflow and Hardware Maintenance for
anEX4550SwitchChassis........................................83
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 33: SFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . . . 110
Figure 34: QSFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . 115
Chapter9 PinoutSpecifications.............................................123
Figure 35: Front Panel of an EX4550-32F Switch . . . . . . . . . . . . . . . . . . . . . . . . . 125
Part 3 Initial Installation and Configuration
Chapter12 InstallingtheSwitch..............................................147
Figure 36: Attaching the Mounting Bracket to the Side Panel of the Switch . . . . 150
Figure 37: Mounting the Switch on Two Posts in a Rack . . . . . . . . . . . . . . . . . . . . 150
Figure 38: Attaching the Front Mount Bracket to the Side Mounting-Rail . . . . . . 153
Figure 39: Attaching the Side Mounting-Rail to the Switch Chassis . . . . . . . . . . . 153
Figure 40: Mounting the Switch to the Front Posts in a Rack . . . . . . . . . . . . . . . . 154
Figure 41: Sliding the Rear Mounting-Blade into the Side Mounting-Rail . . . . . . . 154
Chapter 13 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Figure 42: Connecting the Grounding Lug to a Switch Mounted on Four Posts of
aRack........................................................161
Figure 43: Connecting a Grounding Cable to an EX Series Switch . . . . . . . . . . . . 162
Figure 44: Connecting an AC Power Cord to an AC Power Supply in an EX4550
Switch .......................................................164
Figure 45: DC Power Supply Faceplate for an EX4550 Switch . . . . . . . . . . . . . . . 168
Figure 46: Securing Ring Lugs to the Terminals on the DC Power Supply . . . . . . 168
Chapter 14 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Figure47:EthernetCableConnector...................................169
Figure 48: Connecting a Switch to a Network for Out-of-Band Management . . . 170
Figure49:EthernetCableConnector...................................171
Figure 50: Connecting a Switch to a Management Console Through a Console
Server ........................................................172
Figure 51: Connecting a Switch Directly to a Management Console . . . . . . . . . . . 172
Figure 52: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in
aSwitch......................................................175
Chapter 15 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Figure 53: LCD Panel in an EX3200, EX4200, EX4500, EX4550, or EX8200
Switch........................................................191
Figure 54: LCD Panel in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Part 4 Installing, Maintaining, and Replacing Components
Chapter 16 Replacing Cooling System Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Figure 55: Installing a Fan Module in an EX4550 Switch . . . . . . . . . . . . . . . . . . . 200
Figure 56: Removing a Fan Module from an EX4550 Switch . . . . . . . . . . . . . . . . 201
Copyright © 2015, Juniper Networks, Inc.x
EX4550 Switch Hardware Guide
