Juniper EX4600 Series User Manual

To install a fan module in a EX4600 switch, follow the instructions in “Installing a Fan
Module in an EX4600 Switch” on page 174. To remove a fan module from a EX4600
switch, follow the instructions in “Removing a Fan Module from an EX4600 Switch” on
page 176.
To install an SFP+ or QSFP+ transceiver in an EX4600 switch, follow the instructions in
“Installing a Transceiver in an EX Series Switch” on page 182. To remove an SFP+ or QSFP+
transceiver from an EX4600 switch, follow the instructions in “Removing a Transceiver
from an EX Series Switch” on page 179.
To connect a fiber-optic cable to an SFP+ or QSFP+ transceiver in an EX4600 switch,
follow the instructions in “Connecting a Fiber-Optic Cable to an EX Series Switch” on
page 184. To disconnect a fiber-optic cable from an SFP+ or QSFP+ transceiver from an
EX4600 switch, follow the instructions in “Disconnecting a Fiber-Optic Cable from an
EX Series Switch” on page 183.
Related
Documentation
AC Power Supply in an EX4600 Switch on page 23•
• Cooling System and Airflow in an EX4600 Switch on page 13
• Management Panel of an EX4600 Switch on page 9
• Interface Specifications for SFP, SFP+, and QSFP+ Transceivers for the EX4600 Switch
on page 49
• Interface Specifications for SFP+ DAC Cables for the EX4600 Switch on page 60
Installing a Power Supply in an EX4600 Switch
The power supplies in an EX4600 switch are hot-removable and hot-insertable
field-replaceable units (FRUs): you can remove and replace them without powering off
the switch or disrupting switch functions.
•
Before you install a power supply in an EX4600 switch, ensure that you have taken
the necessary precautions to prevent electrostatic discharge (ESD) damage (see
“Prevention of Electrostatic Discharge Damage” on page 120).
•
Ensure that the airflow direction of the power supply is the same as the chassis. Labels
on the power supply handle indicate the direction of airflow. See “Cooling System and
Airflow in an EX4600 Switch” on page 13 for more information.
To install a power supply in an EX4600 switch (see Figure 30 on page 169):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
2. Taking care not to touch power supply components, pins, leads, or solder connections,
remove the power supply from its bag.
CAUTION: Verify that the direction of the arrow on the power supply
handle matches the direction of airflow in the chassis. Ensure that each
power supply you install in the chassis has the same airflow direction. If
Copyright © 2014, Juniper Networks, Inc.168
EX4600 Switch Hardware Guide

Juniper EX4600 Series Specifications

General

Product Series	EX4600
10GbE ports	24 or 48
Cooling	Front-to-back or back-to-front airflow
Rack Units	1 U
Virtual Chassis	Up to 10 members
MAC address table size	288, 000 entries
Memory	8 GB DRAM
Layer 3 Routing	Yes
AC Power Input	100-240V AC
Ports	24 or 48 x 10GbE ports
40GbE ports	4
100GbE ports	0
Power Supply	Dual redundant, hot-swappable AC or DC
Jumbo frames	9216 bytes
Operating temperature	0°C to 45°C
Input voltage	100-240 VAC, -40 to -72 VDC
Operating relative humidity	5% to 90% noncondensing
Fans	Redundant
JUNOS OS	Junos OS
Storage	16 GB flash
DC Power Input	-40 to -72 VDC