Juniper NFX250 User Manual
NFX250 Network Services Platform
Published
2020-11-10
Hardware Guide
Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
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www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in
the United States and other countries. All other trademarks, service marks, registered marks, 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.
NFX250 Network Services Platform Hardware Guide
Copyright © 2020 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
ii
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related
limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with)
Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement
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agree to the terms and conditions of that EULA.
Table of Contents
1
About the Documentation | viii
Documentation and Release Notes | viii
Using the Examples in This Manual | viii
Merging a Full Example | ix
Merging a Snippet | x
Documentation Conventions | x
Documentation Feedback | xiii
Requesting Technical Support | xiii
Self-Help Online Tools and Resources | xiv
Creating a Service Request with JTAC | xiv
iii
Overview
NFX250 Network Services Platform Overview | 16
NFX250 Device Hardware Overview | 16
NFX250 Hardware | 16
System Software | 17
NFX250 Device Models | 17
NFX250 Chassis | 19
Front Panel of an NFX250 Device | 19
Rear Panel of an NFX250 Device | 21
Chassis Status LEDs on NFX250 Devices | 21
Network Port and Uplink Port LEDs on NFX250 Devices | 23
Management Port LEDs on NFX250 Devices | 25
NFX250 Cooling System | 26
NFX250 Power System | 27
Power Supply in NFX250 Devices | 27
AC Power Supply Specifications for an NFX250 Device | 28
AC Power Cord Specifications for an NFX250 Device | 28
Site Planning, Preparation, and Specifications
2
Site Preparation Checklist for NFX250 Devices | 32
NFX250 Site Guidelines and Requirements | 34
General Site Guidelines | 34
Site Electrical Wiring Guidelines | 35
Chassis Physical Specifications for an NFX250 Device | 36
Clearance Requirements for Airflow and Hardware Maintenance for an NFX250 Device | 36
Rack Requirements for NFX250 Devices | 37
Cabinet Requirements for an NFX250 Device | 38
Requirements for Mounting an NFX250 Device on a Desktop or Other Level Surface | 39
Requirements for Mounting an NFX250-LS1 Device on a Wall | 40
NFX250 Network Cable and Transceiver Planning | 40
iv
Pluggable Transceivers Supported on NFX250 Devices | 40
SFP+ Direct Attach Cables for NFX250 Devices | 67
Cable Specifications | 67
Standards Supported by These Cables | 70
Understanding NFX250 Devices Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion | 71
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables | 71
Attenuation and Dispersion in Fiber-Optic Cable | 72
Calculating the Fiber-Optic Cable Power Budget for an NFX250 Device | 72
Calculating the Fiber-Optic Cable Power Margin for an NFX250 Device | 73
NFX250 Cable Specifications and Pinouts | 75
Cable Specifications for Console and Management Connections for the NFX250 Devices | 75
Mini-USB Type-B Console Port Specifications for an NFX250 Device | 76
Console Port Connector Pinouts for NFX250 Devices | 77
USB Port Specifications for an NFX250 Device | 78
Management Port Connector Pinout Information for an NFX250 Device | 78
Network Port Connector Pinout Information for an NFX250 Device | 79
RJ-45 to DB-9 Serial Port Adapter Pinout Information for an NFX250 Device | 80
Initial Installation and Configuration
3
4
NFX250 Installation Overview | 83
Unpacking and Mounting the NFX250 | 84
Unpacking an NFX250 Device | 84
Parts Inventory (Packing List) for an NFX250 Device | 85
Register Products—Mandatory for Validating SLAs | 86
Mounting an NFX250 Device | 86
Mounting an NFX250 Device on a Desk or Other Level Surface | 87
Mounting an NFX250-LS1 Device on a Wall | 88
Mounting an NFX250 Device on Two Posts in a Rack | 90
Mounting an NFX250 Device on Four Posts in a Rack or Cabinet | 93
Connecting the NFX250 to Power | 95
v
Connecting Earth Ground to an NFX250 Device | 96
Parts and Tools Required for Connecting an NFX250 Device to Earth Ground | 96
Connecting Earth Ground to an NFX250 Device | 97
Connecting AC Power to an NFX250 Device | 97
Connecting the NFX250 to the Network | 99
Connecting an NFX250 Device to a Network for Out-of-Band Management | 99
Connecting an NFX250 Device to a Management Console | 100
Connecting an NFX250 Device to a Management Console Using Mini-USB Type-B Console
Port | 101
Initial Configuration on NFX250 Devices | 103
Maintaining Components
Maintaining Transceivers on the NFX250 | 108
Installing a Transceiver in an NFX250 Device | 108
Removing a Transceiver from an NFX250 Device | 109
Maintaining Fiber Optic Cables on the NFX250 | 111
Connecting a Fiber-Optic Cable to an NFX250 Device | 112
Disconnecting a Fiber-Optic Cable from an NFX250 Device | 113
Maintaining Fiber-Optic Cables in an NFX250 Device | 114
Removing the NFX250 Device from a Rack or Cabinet | 115
5
6
7
Powering Off an NFX250 Device | 115
Removing an NFX250 Device from a Rack or Cabinet | 117
Troubleshooting Hardware
Understanding Alarm Types and Severity Levels on NFX250 Devices | 120
Contacting Customer Support and Returning the Chassis or Components
Contacting Customer Support and Returning the Chassis or Components | 122
Returning a NFX250 Device or Component for Repair or Replacement | 122
Locating the Serial Number on an NFX250 Device | 123
Listing the Device and Components Details with the CLI | 123
Locating the Chassis Serial Number ID Label on an NFX250 Device | 124
Contacting Customer Support to Obtain a Return Materials Authorization for an NFX250
Device | 124
vi
Packing a NFX250 Device or Component for Shipping | 125
Packing a NFX250 Device for Shipping | 126
Packing NFX250 Device Components for Shipping | 127
Safety and Compliance Information
General Safety Guidelines and Warnings | 130
Definitions of Safety Warning Levels | 131
Qualified Personnel Warning | 134
Warning Statement for Norway and Sweden | 135
Fire Safety Requirements | 135
Fire Suppression | 135
Fire Suppression Equipment | 135
Installation Instructions Warning | 137
Chassis Lifting Guidelines for NFX250 Devices | 137
Restricted Access Warning | 139
Ramp Warning | 141
Rack-Mounting and Cabinet-Mounting Warnings | 142
Laser and LED Safety Guidelines and Warnings for the NFX250 Devices | 147
General Laser Safety Guidelines | 148
Class 1M Laser Product Warning | 149
Class 1M Laser Radiation Warning | 149
Class 1 Laser Product Warning | 150
Class 1 LED Product Warning | 151
Laser Beam Warning | 152
Unterminated Fiber-Optic Cable Warning | 153
Radiation from Open Port Apertures Warning | 156
Maintenance and Operational Safety Guidelines and Warnings | 157
Battery Handling Warning | 158
Jewelry Removal Warning | 159
Lightning Activity Warning | 161
vii
Operating Temperature Warning | 162
Product Disposal Warning | 164
General Electrical Safety Guidelines and Warnings | 165
Action to Take After an Electrical Accident | 166
Prevention of Electrostatic Discharge Damage | 166
AC Power Electrical Safety Guidelines | 168
AC Power Disconnection Warning | 169
TN Power Warning | 170
Agency Approvals for NFX250 Devices | 170
Compliance Statements for EMC Requirements for NFX250 Devices | 172
Canada | 172
European Community | 173
Israel | 173
Japan | 173
Korea | 174
United States | 174
FCC Part 15 Statement | 174
About the Documentation
IN THIS SECTION
Documentation and Release Notes | viii
Using the Examples in This Manual | viii
Documentation Conventions | x
Documentation Feedback | xiii
Requesting Technical Support | xiii
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the NFX250 Series devices. After completing the installation and basic configuration
procedures covered in this guide, refer to the Getting Started with NFX250 Network Services Platform
guide for information about further software configuration.
viii
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation, see the product
documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.
If the information in the latest release notes differs from the information in the documentation, follow the
product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts.
These books go beyond the technical documentation to explore the nuances of network architecture,
deployment, and administration. The current list can be viewed at https://www.juniper.net/books.
Using the Examples in This Manual
If you want to use the examples in this manual, you can use the load merge or the load merge relative
command. These commands cause the software to merge the incoming configuration into the current
candidate configuration. The example does not become active until you commit the candidate configuration.
If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example
is a full example. In this case, use the load merge command.
If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In
this case, use the load merge relative command. These procedures are described in the following sections.
Merging a Full Example
To merge a full example, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following configuration to a file and name the file ex-script.conf. Copy the
ex-script.conf file to the /var/tmp directory on your routing platform.
system {
scripts {
commit {
file ex-script.xsl;
}
}
}
interfaces {
fxp0 {
disable;
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
}
}
ix
2. Merge the contents of the file into your routing platform configuration by issuing the load merge
configuration mode command:
[edit]
user@host# load merge /var/tmp/ex-script.conf
load complete
Merging a Snippet
To merge a snippet, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the
ex-script-snippet.conf file to the /var/tmp directory on your routing platform.
commit {
file ex-script-snippet.xsl; }
2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode
command:
[edit]
user@host# edit system scripts
[edit system scripts]
x
3. Merge the contents of the file into your routing platform configuration by issuing the load merge
relative configuration mode command:
[edit system scripts]
user@host# load merge relative /var/tmp/ex-script-snippet.conf
load complete
For more information about the load command, see CLI Explorer.
Documentation Conventions
Table 1 on page xi defines notice icons used in this guide.
Table 1: Notice Icons
xi
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Caution
Indicates a situation that might result in loss of data or hardware
damage.
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Indicates helpful information.Tip
Alerts you to a recommended use or implementation.Best practice
Table 2 on page xi defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
Fixed-width text like this
Italic text like this
Represents text that you type.Bold text like this
Represents output that appears on
the terminal screen.
Introduces or emphasizes important
•
new terms.
Identifies guide names.
•
Identifies RFC and Internet draft
•
titles.
To enter configuration mode, type
the configure command:
user@host> configure
user@host> show chassis alarms
No alarms currently active
A policy term is a named structure
•
that defines match conditions and
actions.
Junos OS CLI User Guide
•
RFC 1997, BGP Communities
•
Attribute
Table 2: Text and Syntax Conventions (continued)
xii
ExamplesDescriptionConvention
Italic text like this
Text like this
< > (angle brackets)
| (pipe symbol)
Represents variables (options for
which you substitute a value) in
commands or configuration
statements.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy
levels; or labels on routing platform
components.
variables.
Indicates a choice between the
mutually exclusive keywords or
variables on either side of the symbol.
The set of choices is often enclosed
in parentheses for clarity.
Configure the machine’s domain
name:
[edit]
root@# set system domain-name
domain-name
To configure a stub area, include
•
the stub statement at the [edit
protocols ospf area area-id]
hierarchy level.
The console port is labeled
•
CONSOLE.
stub <default-metric metric>;Encloses optional keywords or
broadcast | multicast
(string1 | string2 | string3)
# (pound sign)
[ ] (square brackets)
Indention and braces ( { } )
; (semicolon)
GUI Conventions
Indicates a comment specified on the
same line as the configuration
statement to which it applies.
Encloses a variable for which you can
substitute one or more values.
Identifies a level in the configuration
hierarchy.
Identifies a leaf statement at a
configuration hierarchy level.
rsvp { # Required for dynamic MPLS
only
community name members [
community-ids ]
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Table 2: Text and Syntax Conventions (continued)
xiii
ExamplesDescriptionConvention
Bold text like this
> (bold right angle bracket)
Represents graphical user interface
(GUI) items you click or select.
Separates levels in a hierarchy of
menu selections.
In the Logical Interfaces box, select
•
All Interfaces.
To cancel the configuration, click
•
Cancel.
In the configuration editor hierarchy,
select Protocols>Ospf.
Documentation Feedback
We encourage you to provide feedback so that we can improve our documentation. You can use either
of the following methods:
Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper
•
Networks TechLibrary site, and do one of the following:
Click the thumbs-up icon if the information on the page was helpful to you.
•
Click the thumbs-down icon if the information on the page was not helpful to you or if you have
•
suggestions for improvement, and use the pop-up form to provide feedback.
E-mail—Send your comments to techpubs-comments@juniper.net. Include the document or topic name,
•
URL or page number, and software version (if applicable).
Requesting Technical Support
Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC).
If you are a customer with an active Juniper Care or Partner Support Services support contract, or are
covered under warranty, and need post-sales technical support, you can access our tools and resources
online or open a case with JTAC.
JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User
•
Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.
Product warranties—For product warranty information, visit https://www.juniper.net/support/warranty/.
•
JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week,
•
365 days a year.
Self-Help Online Tools and Resources
For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called
the Customer Support Center (CSC) that provides you with the following features:
Find CSC offerings: https://www.juniper.net/customers/support/
•
Search for known bugs: https://prsearch.juniper.net/
•
xiv
Find product documentation: https://www.juniper.net/documentation/
•
Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/
•
Download the latest versions of software and review release notes:
•
https://www.juniper.net/customers/csc/software/
Search technical bulletins for relevant hardware and software notifications:
•
https://kb.juniper.net/InfoCenter/
Join and participate in the Juniper Networks Community Forum:
•
https://www.juniper.net/company/communities/
Create a service request online: https://myjuniper.juniper.net
•
To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:
https://entitlementsearch.juniper.net/entitlementsearch/
Creating a Service Request with JTAC
You can create a service request with JTAC on the Web or by telephone.
Visit https://myjuniper.juniper.net.
•
Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
•
For international or direct-dial options in countries without toll-free numbers, see
https://support.juniper.net/support/requesting-support/.
1
CHAPTER
Overview
NFX250 Network Services Platform Overview | 16
NFX250 Chassis | 19
NFX250 Cooling System | 26
NFX250 Power System | 27
NFX250 Network Services Platform Overview
IN THIS SECTION
NFX250 Device Hardware Overview | 16
NFX250 Device Models | 17
NFX250 Device Hardware Overview
IN THIS SECTION
16
NFX250 Hardware | 16
System Software | 17
The Juniper Networks NFX250 Network Services Platform comprises the Juniper Networks NFX250
devices, which are Juniper Network’s secure, automated, software-driven customer premises equipment
(CPE) devices that deliver virtualized network and security services on demand. Leveraging Network
Functions Virtualization (NFV) and built on the Juniper Cloud CPE solution, NFX250 enables service
providers to deploy and service chain multiple, secure, high-performance virtualized network functions
(VNFs) as a single device. This automated, software-driven solution dynamically provisions new services
on demand.
This topic covers:
NFX250 Hardware
NFX250 devices are available in four compact 1 U models that provide VNF and Packet Forwarding Engine
capacity, and a rich set of Layer 2 and Layer 3 features.
NFX250 device has Eight 1-GbE network ports, two 1-GbE RJ-45 ports which can be used as either access
ports or as uplinks, two SFP ports, two SFP+ ports, and one management port. NFX250 device has a 1 U
form factor and comes with built-in fans and power supply.
Figure 1: NFX250 Port Panel
NFX250 device can be used as:
An integrated branch router and switch, extensible with VNFs.
•
A CPE for service providers.
•
A secure router for distributed enterprises.
•
System Software
17
NFX250 devices use the Junos Device Manager (JDM) for virtual machine (VM) lifecycle and device
management, and for a host of other functions. The JDM CLI is displayed when you log in to the NFX250
device. The JDM CLI is similar to the Junos OS CLI in look and provides the same added-value facilities as
the Junos OS CLI.
You can manage the device by using the JDM CLI, accessible through the console and the out-of-band
management ports on the device.
NFX250 Device Models
The NFX250 device is available in four models. All the models are shipped with built-in AC power supply
and have airflow-out (front-to-back) cooling.
Table 3 on page 18 lists the NFX250 device models.
Table 3: NFX250 Device Models
Power
SupplyPortsMemoryControl PlaneProduct Numbers
18
Airflow
NFX250-S1
NFX250-S2
1.9 GHz 6-core
Intel CPU
1.9 GHz 6-core
Intel CPU
16 GB of memory
and 100 GB of
enterprise grade
solid-state drive
(SSD) storage
32 GB of memory
and 400 GB of
enterprise grade
SSD storage
network ports, two
1-GbE RJ-45 ports
which can be used
as either access
ports or as uplinks,
two SFP ports, two
SFP+ ports, one
Management port,
and two Console
ports
network ports, two
1-GbE RJ-45 ports
which can be used
as either access
ports or as uplinks,
two SFP ports, two
SFP+ ports, one
Management port,
and two Console
ports
ACEight 1-GbE
ACEight 1-GbE
Front-to-back
(AFO) forced
cooling
Front-to-back
(AFO) forced
cooling
NFX250-LS1
1.6 GHz 4-core
Intel CPU
16 GB of memory
and 100 GB of
enterprise grade
solid-state drive
(SSD) storage
network ports, two
1-GbE RJ-45 ports
which can be used
as either access
ports or as uplinks,
two SFP ports, two
SFP+ ports, one
Management port,
and two Console
ports
ACEight 1-GbE
Front-to-back
(AFO) forced
cooling
Table 3: NFX250 Device Models (continued)
Power
SupplyPortsMemoryControl PlaneProduct Numbers
19
Airflow
NFX250-S1E
2.0 GHz 6-core
Intel CPU
RELATED DOCUMENTATION
NFX250 Installation Overview | 83
NFX250 Chassis
16 GB of memory
and 200 GB of
enterprise grade
solid-state drive
(SSD) storage
network ports, two
1-GbE RJ-45 ports
which can be used
as either access
ports or as uplinks,
two SFP ports, two
SFP+ ports, one
Management port,
and two Console
ports
ACTen 1-GbE
Front-to-back
(AFO) forced
cooling
IN THIS SECTION
Front Panel of an NFX250 Device | 19
Rear Panel of an NFX250 Device | 21
Chassis Status LEDs on NFX250 Devices | 21
Network Port and Uplink Port LEDs on NFX250 Devices | 23
Management Port LEDs on NFX250 Devices | 25
Front Panel of an NFX250 Device
The front panel of an NFX250 device consists of the following components:
Eight 1-Gigabit Ethernet network ports
•
Two 1-Gigabit Ethernet RJ-45 network/uplink ports
•
Two 1-Gigabit SFP network/uplink ports
•
Two 1/10-Gigabit SFP+ uplink ports
•
SFP and SFP+ ports Link and Status LEDs
•
1 Mini-USB Type-B Console Port
•
1 RJ-45 Console port
•
1 USB port
•
1-Gigabit Management port
•
4 System Status LEDs
•
3 Port Parameter LEDs
•
1 Mode Button
•
20
Figure 2: NFX250 Front Panel Components
6—1-Gigabit Management port
7—1— System status LEDs1-Gigabit Ethernet RJ-45 network ports
8—2— Mode buttonSFP and SFP+ ports Link and Status LEDs
9—3— 1/10-Gigabit SFP+ uplink portsMini-USB console port
10—4— 1-Gigabit SFP network/uplink portsConsole port
11—5— 1-Gigabit Ethernet RJ-45 network/uplink portsUSB port
SEE ALSO
Prevention of Electrostatic Discharge Damage | 166
Connecting an NFX250 Device to a Network for Out-of-Band Management | 99
Rear Panel of an NFX250 Device
The rear panel of the NFX250 device consists of the following components (see Figure 3 on page 21):
Ground area
•
Electrostatic discharge (ESD) point
•
Exhaust vents
•
Power switch
•
AC power cord inlet
•
Figure 3: NFX250 Device Switch Rear Panel
21
4—1— Power switchGround area
5—2— AC power cord inletElectrostatic discharge (ESD) point
3—Exhaust vents
Chassis Status LEDs on NFX250 Devices
The front panel of an NFX250 device has chassis status LEDs (labeled ALM, SYS, MST and PH) , next to
the MGMT port (see Figure 4 on page 22).
Figure 4: Chassis Status LEDs in an NFX250 Device
3—1— Mode buttonChassis status LEDs (ALM, SYS, MST, and PH)
2—Port parameter LEDs (SPD, DX, and EN)
Table 4 on page 22 describes the chassis status LEDs in NFX250 Device, their colors and states, and the
status they indicate. You can view the colors of the four LEDs remotely through the CLI by issuing the
operational mode command show chassis led.
22
Table 4: Chassis Status LEDs in an NFX250 Device
GreenSYS (System)
GreenMST (Primary)
State and DescriptionColorLED Label
There is no alarm or the device is halted.UnlitALM (Alarm)
There is a major alarm.Red
There is a minor alarm.Amber
On steadily—Junos OS has been loaded on the device.
•
Blinking—The device is booting.
•
Off—The device is powered off or is halted.
•
On steadily—The device is functioning normally.
•
Off—The device is powered off or is halted.
•
Table 4: Chassis Status LEDs in an NFX250 Device (continued)
g041128
Link/
Activity
Status
State and DescriptionColorLED Label
There is no Network Service Activator transaction.UnlitPH
23
Green
Amber
On steadily—Network Service Activator transaction is
•
successfully completed. That is, the Network Service
Orchestrator in NFX250 contacted the Network Service
Activator and provisioned the software image
successfully.
Blinking—Network Service Activator transaction is
•
underway.
Off—The device is powered off or is halted.
•
On steadily—Network Service Activator transaction is
•
terminated unsuccessfully.
Blinking—Network Service Activator transaction is
•
waiting for user input.
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (amber) indicates a noncritical condition that requires monitoring or maintenance. A minor
alarm left unchecked might cause interruption in service or performance degradation.
All four LEDs can be lit simultaneously.
Network Port and Uplink Port LEDs on NFX250 Devices
Each network port and uplink port on the front panel of an NFX250 has two LEDs that indicate link activity
and port status (see Figure 5 on page 23).
Figure 5: LEDs on the Network Port
Table 5 on page 24 describes the Link/Activity LED.
Table 5: Link/Activity LED on the Network Ports and Uplink Ports in NFX250 Devices
State and DescriptionColorLED
24
GreenLink/Activity
Blinking—The port and the link are active, and there is link activity.
•
On steadily—The port and the link are active, but there is no link
•
activity.
Off—The port is not active.
•
Figure 6 on page 24 shows the LEDs that indicate the status of one of the three port parameters—speed,
duplex mode, and administrative status. Use the Mode button on the far right side of the front panel to
toggle the Status LED to show the different port parameters. You can tell which port parameter (speed,
duplex mode, or administrative status) is indicated by the Status LED by looking at which port status mode
LED (SPD, DX, or EN) is lit.
Figure 6: Port Status Mode LEDs of an NFX250 Device
3—1— Mode buttonChassis status LEDs (ALM, SYS, MST, and PH)
2—Port parameter LEDs (SPD, DX, and EN)
Table 6 on page 24 describes the Status LED.
Table 6: Status LED on the Network Ports and Uplink Ports in NFX250 Devices
State and DescriptionPort Parameters
Speed
Indicates the speed. The speed indicators for network ports are:
One blink per second—10 Mbps
•
Two blinks per second—100 Mbps
•
Three blinks per second—1000 Mbps
•
Table 6: Status LED on the Network Ports and Uplink Ports in NFX250 Devices (continued)
State and DescriptionPort Parameters
25
Duplex mode
Administrative status
Indicates the duplex mode. The status indicators are:
On steadily—Port is set to full-duplex mode.
•
Off—Port is set to half-duplex mode.
•
Indicates the administrative status. The status indicators are:
On steadily—Port is administratively enabled.
•
Off—Port is administratively disabled.
•
You can tell which port parameter is indicated by the Status LED on network ports by issuing the operational
mode command show chassis led.
Management Port LEDs on NFX250 Devices
The management port on the front panel of an NFX250 device has two LEDs that indicate link activity
and port status (see Figure 7 on page 25).
Figure 7: LEDs on the Management Port of an NFX250
Table 7 on page 26 describes the Link/Activity LED.
2—1— StatusLink/Activity
Table 7: Link/Activity LED on the Management Port of an NFX250 Device
State and DescriptionColorLED
26
GreenLink/Activity
Blinking—The port and the link are active, and there is
•
link activity.
On steadily—The port and the link are active, but there
•
is no link activity.
Off—The port is not active.
•
Table 8 on page 26 describes the Status LED.
Table 8: Status LED on the Management Port of an NFX250 Device
State and DescriptionColorLED
GreenStatus
Indicates the speed. The speed indicators are:
One blink per second—10 Mbps
•
Two blinks per second—100 Mbps
•
Three blinks per second—1000 Mbps
•
RELATED DOCUMENTATION
NFX250 Installation Overview | 83
NFX250 Network Cable and Transceiver Planning | 40
NFX250 Cooling System
The NFX250 devices have front-to-back airflow. The air intake to cool the chassis is located on the front
of the chassis. Air is pulled into the chassis and pushed toward the fans, which are built-in. Hot air exhausts
from the rear of the chassis. See Figure 8 on page 27.
Figure 8: Front-to-Back Airflow Through the NFX250 Chassis
27
RELATED DOCUMENTATION
Clearance Requirements for Airflow and Hardware Maintenance for an NFX250 Device | 36
NFX250 Power System
IN THIS SECTION
Power Supply in NFX250 Devices | 27
AC Power Supply Specifications for an NFX250 Device | 28
AC Power Cord Specifications for an NFX250 Device | 28
Power Supply in NFX250 Devices
NFX250 devices use a fixed, internal AC power supply. The power supply distributes different output
voltages to the device components according to their voltage requirements. The power supply is fixed in
the chassis and is not field-replaceable.
The power supply has a single AC appliance inlet that requires a dedicated AC power feed. The AC power
cord inlet is on the rear panel of the device.
AC Power Supply Specifications for an NFX250 Device
Table 9 on page 28 describes the AC power specifications for an NFX250 device.
Table 9: AC Power Specifications for an NFX250 Device
SpecificationItem
28
AC input voltage
Operating range:
100 through 240 VAC
•
50–60 Hz nominalAC input line frequency
3 A at 240 VACAC input current rating
140 WMaximum power consumption
AC Power Cord Specifications for an NFX250 Device
A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as described
by International Electrotechnical Commission (IEC) standard 60320. The plug at the male end of the power
cord fits into the power source outlet that is standard for your geographical location.
CAUTION: The AC power cord provided with each power supply is intended for use
with that power supply only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 meters in length, to comply with
National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52 and Canadian
Electrical Code (CEC) Section 4-010(3). The cords supplied with the switch are in compliance.
Table 10 on page 29 gives the AC power cord specifications for the countries and regions listed in the
table.
Table 10: AC Power Cord Specifications
29
Juniper Model NumberPlug StandardsElectrical SpecificationsCountry/Region
CBL-EX-PWR-C13-ARIRAM 2073 Type RA/3250 VAC, 10 A, 50 HzArgentina
Switzerland, and United
Kingdom)
Japan
Korea
250 VAC, 10 A, 50 HzAustralia
Hz
Hz
CBL-EX-PWR-C13-AUAS/NZZS 3112 Type
SAA/3
CBL-EX-PWR-C13-BRNBR 14136 Type BR/3250 VAC, 10 A, 50 HzBrazil
CBL-EX-PWR-C13-CHGB 1002-1996 Type PRC/3250 VAC, 10 A, 50 HzChina
CBL-EX-PWR-C13-EUCEE (7) VII Type VIIG250 VAC, 10 A, 50 HzEurope (except Italy,
CBL-EX-PWR-C13-INIS 1293 Type IND/3250 VAC, 10 A, 50 HzIndia
CBL-EX-PWR-C13-ILSI 32/1971 Type IL/3G250 VAC, 10 A, 50 HzIsrael
CBL-EX-PWR-C13-ITCEI 23-16 Type I/3G250 VAC, 10 A, 50 HzItaly
CBL-EX-PWR-C13-JPSS-00259 Type VCTF125 VAC, 12 A, 50 Hz or 60
CBL-EX-PWR-C13-KRCEE (7) VII Type VIIGK250 VAC, 10 A, 50 Hz or 60
CBL-EX-PWR-C13-USNEMA 5-15 Type N5-15125 VAC, 13 A, 60 HzNorth America
250 VAC, 10 A, 50 HzSouth Africa
ZA/13
Taiwan
50 Hz
CBL-EX-PWR-C13-SASABS 164/1:1992 Type
CBL-EX-PWR-C13-SZSEV 6534-2 Type 12G250 VAC, 10 A, 50 HzSwitzerland
CBL-EX-PWR-C13-TWNEMA 5-15P Type N5-15P125 VAC, 11 A and 15 A,
CBL-EX-PWR-C13-UKBS 1363/A Type BS89/13250 VAC, 10 A, 50 HzUnited Kingdom
Figure 9 on page 30 illustrates the plug on the power cord for some of the countries or regions listed in
Table 10 on page 29.
Figure 9: AC Plug Types
SEE ALSO
General Safety Guidelines and Warnings | 130
General Electrical Safety Guidelines and Warnings | 165
Prevention of Electrostatic Discharge Damage | 166
RELATED DOCUMENTATION
30
Connecting the NFX250 to Power | 95
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