EX3400 Switch Quick Start
See the complete EX Series documentation at
http://www.juniper.net/documentation/.
To mount the Juniper Networks EX3400 Ethernet Switch on
two posts of a rack, you need:
z Two mounting brackets and eight mounting screws
(provided)
z Screws to secure the chassis to the rack (not provided)
z Phillips (+) screwdriver, number 2 (not provided)
To connect the switch to earth ground, you need a
grounding cable (minimum 14 AWG [2 mm²], minimum 90°C
wire) with a grounding lug (Panduit LCC10-14BWL or
equivalent) attached, a pair of 10-32x0.25-in. screws with #10 split-lock washer, and a
pair of #10 flat washers—none provided.
To connect AC power to the switch, you need a power cord with a plug appropriate for
your geographical location (provided) and a power cord retainer strip (provided).
To connect DC power to the switch, you need a terminal connector (provided), DC power
cables (14–16 AWG) (not provided) with wire pins (Molex 192120005) attached (not
provided) and a slotted (-) screwdriver (not provided).
To perform initial configuration of the switch, you need:
z Ethernet cable with an RJ-45 connector attached (provided)
z RJ-45 to DB-9 serial port adapter (provided)
z Management host, such as a laptop or PC, with an Ethernet port (not provided)
Register product serial numbers on the Juniper Networks website and update the
installation base data if there is any addition or change to the installation base or if the
installation base is moved. Juniper Networks will not be held accountable for not meeting
the hardware replacement service-level agreement for products that do not have
registered serial numbers or accurate installation base data.
Register your product(s) at https://tools.juniper.net/svcreg/SRegSerialNum.jsp.
Update your install base at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp.
The fan modules and the power supplies in EX3400 switches are hot-removable and
hot-insertable field-replaceable units (FRUs) installed in the rear panel of the switch: You
can replace them without powering off the switch or disrupting switch functions.
CAUTION: Do not mix power supplies and fan modules with different airflow labels
(AIR IN [AFI] and AIR OUT [AFO]) in the same chassis.
WARNING: Ensure that you understand how to prevent electrostatic discharge
(ESD) damage. Attach the ESD grounding strap to your bare wrist, and connect the
strap to the ESD point on the chassis.
Part 1: Mount the Switch on Two Posts of a Rack
You can mount an EX3400 switch on a desk or a level surface, on two or four posts of a
rack or cabinet, or on a wall. This guide describes the procedure to mount the switch on
two posts of a rack.
Mounting an EX3400 switch on a rack requires one person to lift the switch and a second
person to install the mounting screws.
1. Place the rack in its permanent location, allowing adequate clearance for airflow and
maintenance, and secure it to the building structure.
NOTE: When you mount multiple units on a rack, mount the heaviest unit at the bottom
and mount the other units from bottom to top in decreasing order of weight.
2. Align the mounting brackets along the front of the side panels of the chassis.
3. Attach the brackets to the chassis by using the mounting screws. Tighten the screws.
4. Have one person grasp both sides of the switch, lift the switch, and position it in the
rack, aligning the mounting bracket holes with the threaded holes in the rack rail.
Align the bottom hole in each mounting bracket with a hole in each rail, making sure
that the chassis is level.
5. Have the second person secure the switch to the rack by using the appropriate
screws. Tighten the screws.
Part 2: Connect Power to the Switch
NOTE: Grounding is required for DC systems and recommended for AC systems. An
AC-powered switch gets additional grounding when you plug the power supply in the
switch into a grounded AC power outlet by using the power cord.
To connect earth ground to a switch:
CAUTION: A licensed electrician must attach the lug to the grounding cable.
1. Secure the grounding lug on the grounding cable to the earthing terminal on the rear
panel by using washers and screws.
2. Connect the other end of the grounding cable to a proper earth ground.
To connect power to an AC-powered switch:
The power cord inlet is on the power supply installed in the switch.
1. Push the end of the power cord retainer strip into the slot above the power cord inlet
until the strip snaps into place. Ensure that the loop in the retainer strip faces toward
the power cord.
2. Press the small tab on the retainer strip to loosen the loop. Slide the loop until you
have enough space to insert the power cord coupler into the power cord inlet.
3. Insert the power cord coupler firmly into the power cord inlet.
4. Slide the loop toward the power supply until it is snug against the base of the coupler.
5. Press the tab on the loop and draw out the loop into a tight circle.
6. If the power source outlet has a power switch, set it to the off (0) position.
7. Insert the power cord plug into the power source outlet.
8. If the power source outlet has a power switch, set it to the on (|) position.
9. Verify that the AC OK and the DC OK LEDs are lit green and on steadily.
To connect power to a DC-powered switch:
The DC power inlet on the power supply installed in the switch has terminals labeled +
and –.
Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are
trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. Juniper Networks assumes no responsibility for any inaccuracies
in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice. Products made or sold by Juniper Networks or components thereof might be covered by one or more
of the following patents that are owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899,
6,552,918, 6,567,902, 6,578,186, and 6,590,785. Copyright © 2016, Juniper Networks, Inc. All rights reserved. Part Number: 530-071787, Revision 01, August 2016.
WARNING: Ensure that the input circuit breaker is open so that the cable leads do
not become active while you are connecting DC power.
1. Loosen the screws on the terminal connector by using an appropriate screwdriver.
2. Strip 0.25 inch (6.35 mm) of the insulator from one end of the power cables and
attach the wire pins to the power cables.
3. Connect the wire pins to the appropriate terminals on the terminal connector:
− Connect the positive (+) wire pin to the + terminal on the terminal connector.
− Connect the negative (–) wire pin to the – terminal on the terminal connector.
− Ensure that the pins are fully inserted into the terminal connector.
− Tighten each screw on the terminal connector by using an appropriate
screwdriver. Do not overtighten—apply 4.5 lb-in. (0.51 Nm) of torque.
4. Attach the terminal connector to the DC power inlet and secure it by tightening the
two screws on either side of the terminal connector.
5. Connect the other end of the power cables to the power source.
6. Close the input circuit breaker.
7. Verify that the IN OK and the OUT OK LEDs are lit green and on steadily.
Part 3: Perform Initial Configuration
NOTE: To run the EZSetup script, the switch must have the factory-default configuration
as the active configuration. If you have configured anything on the switch and want to run
EZSetup, you must revert the switch to the factory-default configuration. See the EX
Series documentation at https://www.juniper.net/documentation for reverting to
factory-default configuration.
To connect and configure the switch from the management host:
1. Set the following values on the management host: baud rate—9600; flow
control—none; data—8; parity—none; stop bits—1; DCD state—disregard.
2. Connect the console port to the management host by using the Ethernet cable with
an RJ-45 connector attached and the RJ-45 to DB-9 serial port adapter.
NOTE: You can also use the mini-USB port to connect the switch to the management
host (see the EX Series documentation at www.juniper.net/documentation).
3. At the Junos OS shell prompt root%, type ezsetup.
4. (Optional) Enter the hostname.
5. Enter the root password that you want to use for the switch. Reenter the root
password when prompted.
6. Enable services such as SSH and Telnet.
NOTE: You will not be able to log in to the switch as the root user through Telnet. Root
login is allowed only through SSH.
7. Use the Management Options page to select the management scenario:
− In-band Management—Use the automatically created VLAN, default, for
management.
Select this option to configure all data interfaces as members of the default VLAN.
Click Next. Specify the management IP address and the default gateway.
− In-band Management—Create a new VLAN for management.
Select this option to create a management VLAN. Specify the VLAN name, VLAN
ID, management IP address, and default gateway for the new VLAN. Select the
ports that must be part of this VLAN.
− Out-of-band Management—Configure the management port.
Select this option to configure only the management interface. Specify the IP
address and default gateway for the management interface.
8. (Optional) Specify the SNMP read community, location, and contact to configure
SNMP parameters.
9. (Optional) Specify the system date and time. Select the time zone from the list.
10.The configured parameters are displayed. Enter yes to commit the configuration. The
configuration is committed as the active configuration for the switch.
You can now log in by using the CLI to continue configuring the switch.
Safety Warnings Summary
This is a summary of safety warnings. For a complete list of warnings, including
translations, see the EX Series documentation at http://www.juniper.net/documentation/.
WARNING: Failure to observe these safety warnings can result in personal injury
or death.
z Permit only trained and qualified personnel to install or replace switch components.
z Perform only the procedures described in this quick start and the EX Series
documentation. Other services must be performed only by authorized service
personnel.
z Before mounting the switch, read the planning instructions in the EX Series
documentation to make sure that the site meets power, environmental, and clearance
requirements for the switch.
z Before connecting the switch to a power source, read the installation instructions in the
EX Series documentation.
z If the rack has stabilizing devices, install them in the rack before mounting or servicing
the switch in the rack.
z Before installing or after removing an electrical component, always place it
component-side up on an antistatic mat placed on a flat, stable surface or in an
antistatic bag.
z Do not work on the switch or connect or disconnect cables during electrical storms.
z Before working on equipment that is connected to power lines, remove jewelry,
including rings, necklaces, and watches. Metal objects heat up when connected to
power and ground and can cause serious burns or become welded to the terminals.
Power Cable Warning (Japanese)
The power cord provided with the
switch is only for this product. Do not
use this cable for another product.
Contacting Juniper Networks
For technical support, see http://www.juniper.net/support/requesting-support.html.
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