Juniper ACX5448-D, ACX5448, ACX5448-M Hardware Manual
ACX5448, ACX5448-D, and ACX5448-M
Published
2019-12-23
Universal Metro Router 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.
ACX5448, ACX5448-D, and ACX5448-M Universal Metro Router Hardware Guide
Copyright © 2019 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
(“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you
agree to the terms and conditions of that EULA.
Table of Contents
1
About the Documentation | ix
Documentation and Release Notes | ix
Using the Examples in This Manual | ix
Merging a Full Example | x
Merging a Snippet | xi
Documentation Conventions | xi
Documentation Feedback | xiv
Requesting Technical Support | xiv
Self-Help Online Tools and Resources | xv
Creating a Service Request with JTAC | xv
iii
Overview
ACX5448, ACX5448-D, and ACX5448-M System Overview | 19
ACX5400 Universal Metro Router Description | 19
Benefits of ACX5400 Routers | 21
ACX5448, ACX5448-D, and ACX5448-M System Overview | 21
ACX5400 Router Models | 25
Field-Replaceable Units in ACX5400 Routers | 26
Hardware Redundancy of ACX5400 Router Components and Functionality | 27
ACX5400 Routers Hardware and CLI Terminology Mapping | 27
ACX5400 System Software Overview | 29
ACX5448, ACX5448-D, and ACX5448-M Chassis | 30
Management Panel of ACX5400 Routers | 30
Port Panel of ACX5400 Routers | 32
Port Panel of an ACX5448 Router | 32
Port Panel of an ACX5448-D Router | 32
Port Panel of an ACX5448-M Router | 36
Chassis Status LEDs on ACX5400 Routers | 37
Management Port LEDs on ACX5400 Routers | 40
Network Port LEDs on ACX5400 Routers | 41
Fan Status LEDs on ACX5400 Routers | 43
2
Power Supply LEDs on ACX5400 Routers | 44
AC Power Supply LEDs on ACX5400 Routers | 44
DC Power Supply LEDs on ACX5400 Routers | 46
Cooling System and Airflow in ACX5448, ACX5448-D, and ACX5448-M Routers | 47
Fan Modules | 48
Fan Module and Power Supply Requirement | 50
Fan Module Status | 51
ACX5448, ACX5448-D, and ACX5448-M Power System | 52
AC Power Supply for ACX5400 Routers | 53
AC Power Specifications for ACX5400 Routers | 55
AC Power Cord Specifications for ACX5400 Routers | 55
DC Power Supply for ACX5400 Routers | 57
iv
DC Power Specifications for ACX5400 Routers | 59
Site Planning, Preparation, and Specifications
Site Preparation Checklist for ACX5448, ACX5448-D, and ACX5448-M Routers | 63
ACX5448, ACX5448-D, and ACX5448-M Site Guidelines and Requirements | 64
General Site Guidelines | 65
Site Electrical Wiring Guidelines | 65
Chassis Physical Specifications for ACX5400 Routers | 66
ACX5400 Router Environmental Requirements and Specifications | 67
ACX5400 Grounding Cable and Lug Specifications | 68
Clearance Requirements for Airflow and Hardware Maintenance for ACX5400 Routers | 70
Cabinet Requirements for ACX5400 Routers | 71
Rack Requirements for ACX5400 Routers | 72
3
ACX5448, ACX5448-D, and ACX5448-M Network Cable and Transceiver Planning | 73
Determining Transceiver Support for ACX5400 | 74
Cable Specifications for QSFP+ and QSFP28 Transceivers | 74
Calculating Power Budget and Power Margin for Fiber-Optic Cables | 76
Calculating Power Budget for Fiber-Optic Cable | 76
Calculating Power Margin for Fiber-Optic Cable | 77
Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 78
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 78
Attenuation and Dispersion in Fiber-Optic Cable | 79
ACX5448, ACX5448-D, and ACX5448-M Management and Console Port Specifications
and Pinouts | 80
Management Cable Specifications for ACX5400 Routers | 80
v
Management Port Connector Pinout Information for ACX Series Routers | 80
Console or Auxiliary Port Connector Pinout on ACX Series Routers | 81
USB Port Specifications for an ACX Series Router | 82
Initial Installation and Configuration
ACX5448, ACX5448-D, and ACX5448-M Installation Overview | 85
Unpacking and Mounting ACX5448, ACX5448-D, and ACX5448-M | 86
Unpack an ACX5400 Router | 86
Mount an ACX5400 Router in a Rack or Cabinet | 87
Before You Begin Rack Installation | 88
Install the ACX5400 Router in the Rack | 89
Connect ACX5448, ACX5448-D, and ACX5448-M to Power | 95
Connect Earth Ground to ACX5400 Routers | 95
Connect AC Power to an ACX5400 Router | 98
Connect DC Power to an ACX5400 Router | 102
Connect ACX5448, ACX5448-D, and ACX5448-M to External Devices | 106
Connect an ACX5400 Router to a Management Console | 106
Connect an ACX5400 Router to a Network for Out-of-Band Management | 107
Connect an ACX5400 Router to External Clocking and Timing Devices | 108
4
5
Perform Initial Software Configuration for the ACX5448, ACX5448-D, and ACX5448-M
Routers | 109
Maintaining Components
Maintaining ACX5448, ACX5448-D, and ACX5448-M Components | 115
Replace an ACX5400 Fan Module | 115
Remove a Fan Module from an ACX5400 Router | 115
Install a Fan Module in an ACX5400 Router | 117
Replace an ACX5400 AC Power Supply Module | 118
Remove an AC Power Supply Module from an ACX5400 Router | 118
Install an AC Power Supply Module in an ACX5400 Router | 120
Replace an ACX5400 DC Power Supply Module | 122
Remove an ACX5400 DC Power Supply Module | 123
vi
Install an ACX5400 DC Power Supply Module | 124
Replace an SFP+ Transceiver | 127
Remove an SFP+ Transceiver | 127
Install an SFP+ Transceiver | 128
Replace a QSFP28 Transceiver | 129
Remove a QSFP28 Transceiver | 130
Install a QSFP28 Transceiver | 131
Replacing a CFP2 Transceiver | 132
Removing a CFP2 Transceiver | 133
Installing a CFP2 Transceiver | 134
Maintaining Fiber-Optic Cables | 136
Removing the ACX5448, ACX5448-D, or ACX5448-M Router | 136
Power Off an ACX5400 Router | 137
Remove an ACX5400 Router from a Rack or Cabinet | 138
Troubleshooting Hardware
Troubleshooting the ACX5448, ACX5448-D, and ACX5448-M Routers | 143
Alarm Types and Severity Classes on ACX Series Routers | 143
Alarm Types | 143
Alarm Severity Classes | 144
Contacting Customer Support and Returning the Chassis or Components
6
7
Contacting Customer Support and Returning the Chassis or Components | 147
Returning a Hardware Component to Juniper Networks, Inc. | 147
How to Locate the Serial Number on an ACX5400 Router or Component | 148
List the Chassis and Component Details Using the CLI | 149
Locate the Chassis Serial Number ID Label on an ACX5400 Router | 151
Locate the Serial Number ID Labels on ACX5400 Power Supply Modules | 152
Locate the Serial Number ID Label on an ACX5400 Fan Module | 153
Contacting Customer Support to Obtain Return Material Authorization | 154
Guidelines for Packing Hardware Components for Shipment | 155
Safety and Compliance Information
General Safety Guidelines and Warnings | 159
vii
Definitions of Safety Warning Levels | 160
Qualified Personnel Warning | 163
Warning Statement for Norway and Sweden | 164
Fire Safety Requirements | 164
Fire Suppression | 164
Fire Suppression Equipment | 164
Installation Instructions Warning | 166
Restricted Access Warning | 167
Ramp Warning | 169
Rack-Mounting and Cabinet-Mounting Warnings | 170
Grounded Equipment Warning | 176
Radiation from Open Port Apertures Warning | 177
Laser and LED Safety Guidelines and Warnings | 178
General Laser Safety Guidelines | 178
Class 1 Laser Product Warning | 179
Class 1 LED Product Warning | 180
Laser Beam Warning | 181
Maintenance and Operational Safety Guidelines and Warnings | 181
Battery Handling Warning | 183
Jewelry Removal Warning | 184
Lightning Activity Warning | 186
Operating Temperature Warning | 187
Product Disposal Warning | 189
General Electrical Safety Guidelines and Warnings | 190
Prevention of Electrostatic Discharge Damage | 191
Site Electrical Wiring Guidelines | 192
AC Power Electrical Safety Guidelines | 193
viii
AC Power Disconnection Warning | 195
DC Power Disconnection Warning | 196
DC Power Grounding Requirements and Warning | 198
DC Power Wiring Sequence Warning | 200
DC Power Wiring Terminations Warning | 203
Multiple Power Supplies Disconnection Warning | 206
TN Power Warning | 207
Action to Take After an Electrical Accident | 207
Agency Approvals for ACX5448, ACX5448-D, and ACX5448-M Routers | 208
Compliance Statements for NEBS | 209
Compliance Statements for EMC Requirements | 209
Canada | 209
European Community | 210
Israel | 210
Japan | 210
United States | 210
Compliance Statements for Environmental Requirements | 211
About the Documentation
IN THIS SECTION
Documentation and Release Notes | ix
Using the Examples in This Manual | ix
Documentation Conventions | xi
Documentation Feedback | xiv
Requesting Technical Support | xiv
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the ACX5448 Router.
ix
After completing the installation and basic configuration procedures covered in this guide, refer to the
Junos OS documentation for information about further software configuration.
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;
}
}
}
}
x
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]
xi
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 xii defines notice icons used in this guide.
Table 1: Notice Icons
xii
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 xii 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)
xiii
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)
xiv
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/
•
xv
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
ACX5448, ACX5448-D, and ACX5448-M System Overview | 19
ACX5448, ACX5448-D, and ACX5448-M Chassis | 30
Cooling System and Airflow in ACX5448, ACX5448-D, and ACX5448-M Routers | 47
ACX5448, ACX5448-D, and ACX5448-M Power System | 52
ACX5448, ACX5448-D, and ACX5448-M System Overview
IN THIS SECTION
ACX5400 Universal Metro Router Description | 19
ACX5400 Router Models | 25
Field-Replaceable Units in ACX5400 Routers | 26
Hardware Redundancy of ACX5400 Router Components and Functionality | 27
ACX5400 Routers Hardware and CLI Terminology Mapping | 27
ACX5400 System Software Overview | 29
19
ACX5400 Universal Metro Router Description
IN THIS SECTION
Benefits of ACX5400 Routers | 21
ACX5448, ACX5448-D, and ACX5448-M System Overview | 21
The Juniper Networks ACX5400 Universal Metro Routers are top-of-rack routers with deep packet buffer
solutions for metro network or aggregation environments. The ACX5400 router portfolio consists of
high-performance, fixed-configuration, 1 U routers that add higher port densities, additional scalability,
and improved latency to the ACX Series. The routers have a high-throughput Packet Forwarding Engine,
which provides full duplex throughput of 800 Gbps.
The ACX5400 line of routers are available in three variants:
ACX5448
•
ACX5448-D
•
ACX5448-M
•
Figure 1 on page 20 and Figure 2 on page 20 show the front and rear, respectively, of a typical ACX5448
router.
Figure 1: ACX5448 Router—Front
Figure 2: AC-Powered ACX5448 Router—Rear
Figure 3 on page 20 and Figure 4 on page 20 show the front and rear, respectively, of a typical ACX5448-D
router.
20
Figure 3: ACX5448-D Router—Front
Figure 4: AC-Powered ACX5448-D Router—Rear
Figure 5 on page 20 and Figure 6 on page 21 show the front and rear, respectively, of a typical ACX5448-M
router.
Figure 5: ACX5448-M Router—Front
Figure 6: AC-Powered ACX5448-M Router—Rear
Benefits of ACX5400 Routers
Optimized space—The ACX5400 router has a 1 U form factor and is ideal for Ethernet service aggregation.
•
Its innovative design helps service providers build high-density, high-performance 100-Gigabit Ethernet
infrastructures where rack space and cooling are limited.
High performance
•
The 52 ports on the ACX5448 router support 10-Gbps and 100-Gbps speeds providing a total
•
throughput of up to 800 Gbps. The router provides full metro Ethernet and IP/MPLS VPN services in
a space-optimized platform.
21
The ACX5448-D router supports 10-Gigabit, 100-Gigabit, and 100G/200G dense wavelength-division
•
multiplexing (DWDM) ports with a system throughput of up to 800 Gbps. The innovative design of
the ACX5448-D helps service providers develop converged packet optical solutions.
Simplified network architecture— The ACX5400 line of routers simplify access and aggregation
•
architectures by eliminating unnecessary layers and network overlays.
Advanced security capabilities— The ACX5448-M router supports advanced security capabilities such
•
as Media Access Control Security (MACsec) on the 10-Gigabit or 1-Gigabit Ethernet ports to protect
against potential network vulnerabilities.
ACX5448, ACX5448-D, and ACX5448-M System Overview
The ACX5400 routers have a high-throughput Packet Forwarding Engine, and the performance of the
control plane running on ACX5400 routers is enhanced by the 1.9-Ghz six-core Intel CPU with 32-GB of
memory and two 100-GB enterprise-grade solid-state drives (SSDs) for storage.
We ship the ACX5400 routers with redundant fans and redundant power supply modules (PSMs). You
can order the routers with front-to-back airflow (airflow out or AFO) or back-to-front airflow (airflow in
or AFI), and with AC or DC PSMs.
Figure 7 on page 22 shows the important components on the front of the ACX5448 router.
Figure 7: Front View of the ACX5448 Router
g100100
2 3 4
56
1
g100101
21 1
g100502
2 11
4—1— Console (CON) portSFP+ ports
5—2— PPS and 10M GPS output portsQSFP28 ports
6—3— USB portManagement (MGMT) port
Figure 8 on page 22 and Figure 9 on page 22 shows the important components on the rear of the ACX5448
routers.
Figure 8: Rear View of the AC-Powered ACX5448 Router
22
2—1— Fan modulesPower supply modules (AC)
Figure 9: Rear View of the DC-Powered ACX5448 Router
2—1— Fan modulesPower supply modules (DC)
The fan modules and PSMs on the ACX5448 routers are installed in slots on the rear of the chassis. The
chassis has six slots for the fan modules and two slots for the PSMs.
The six fan modules are numbered 0 through 5 from left to right. Similarly, the two PSMs are numbered
0 and 1.
Figure 10 on page 23 shows the important components on the front of the ACX5448-D router.
Figure 10: Front View of the ACX5448-D Router
g100500
32 4 5
1
67
g100701
21 1
g100502
2 11
5—1— Console (CON) portSFP+ ports
6—2— PPS and 10M GPS output portsQSFP28 ports
7—3— USB portCFP2 ports
4—Management (MGMT) port
Figure 11 on page 23 and Figure 12 on page 23 show the important components on the rear of the
ACX5448-D routers.
23
Figure 11: Rear View of the AC-Powered ACX5448-D Router
2—1— Fan modulesPower supply modules (AC)
Figure 12: Rear View of the DC-Powered ACX5448-D Router
2—1— Fan modulesPower supply modules (DC)
The fan modules and PSMs on the ACX5448-D routers are installed in slots on the rear of the chassis. The
chassis has six slots for the fan modules and two slots for the PSMs.
The six fan modules are numbered 0 through 5 from left to right. Similarly, the two PSMs are numbered
0 and 1.
Figure 13 on page 24 shows the important components on the front of the ACX5448-M router.
Figure 13: Front View of the ACX5448-M Router
g100700
2 3 4
1
56
g100701
21 1
g100502
2 11
4—1— Console (CON) portSFP+ ports
5—2— PPS and 10M GPS output portsQSFP28 ports
6—3— USB portManagement (MGMT) port
Figure 14 on page 24 and Figure 15 on page 24 show the important components on the rear of the
ACX5448-M routers.
Figure 14: Rear View of the AC-Powered ACX5448-M Router
24
2—1— Fan modulesPower supply modules (AC)
Figure 15: Rear View of the DC-Powered ACX5448-M Router
2—1— Fan modulesPower supply modules (DC)
The fan modules and PSMs on the ACX5448-M routers are installed in slots on the rear of the chassis.
The chassis has six slots for the fan modules and two slots for the PSMs.
The six fan modules are numbered 0 through 5 from left to right. Similarly, the two PSMs are numbered
0 and 1.
ACX5400 Router Models
The ACX5400 line of routers are available with either AC or DC power supply modules (PSMs) and with
either airflow-out (AFO) or airflow-in (AFI) cooling. AFO is also known as front-to-back or port-to-FRU
cooling; similarly AFI is known as back-to-front or FRU-to-port cooling.
Table 3 on page 25 lists the model numbers for ACX5448 routers.
Table 3: ACX5448 Router Model Numbers and Description
AirflowPower SupplyModel Number
Airflow in (back-to-front)ACACX5448-AC-AFI
Airflow in (back-to-front)DCACX5448-DC-AFI
Airflow out (front-to-back)ACACX5448-AC-AFO
25
Table 4 on page 25 lists the model numbers for ACX5448-D routers.
Table 4: ACX5448-D Router Model Numbers and Description
Table 5 on page 25 lists the model numbers for ACX5448-M routers.
Table 5: ACX5448-M Router Model Numbers and Description
Airflow out (front-to-back)DCACX5448-DC-AFO
AirflowPower SupplyModel Number
Airflow in (back-to-front)ACACX5448-D-AC-AFI
Airflow in (back-to-front)DCACX5448-D-DC-AFI
Airflow out (front-to-back)ACACX5448-D-AC-AFO
Airflow out (front-to-back)DCACX5448-D-DC-AFO
AirflowPower SupplyModel Number
Airflow in (back-to-front)ACACX5448-M-AC-AFI
Airflow in (back-to-front)DCACX5448-M-DC-AFI
Airflow out (front-to-back)ACACX5448-M-AC-AFO
Table 5: ACX5448-M Router Model Numbers and Description (continued)
AirflowPower SupplyModel Number
Airflow out (front-to-back)DCACX5448-M-DC-AFO
CAUTION: Do not mix different types (AC and DC) of power supply modules and
different airflow modules (AFI and AFO) in the same chassis.
Field-Replaceable Units in ACX5400 Routers
Field-replaceable units (FRUs) are components that you can replace at your site. The ACX5400 FRUs are
hot-insertable and hot-removable: you can remove and replace them without powering off the router or
disrupting the routing function.
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The following are the ACX5400 FRUs:
Power supply modules (PSMs)
•
Fan modules
•
Optical transceivers
•
CAUTION: Replace a failed PSM with a new PSM within one minute of removal to
prevent chassis overheating. The router continues to operate with only one PSM
running. Replace a failed fan module with a new fan module within one minute of
removal to prevent chassis overheating. Do not operate the router with missing FRUs
for longer than one minute.
NOTE: If you have a Juniper J-Care service contract, register any addition, change, or upgrade
of hardware components at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp. Failure to do so
can result in significant delays if you need replacement parts. This note does not apply if you
replace existing components with the same type of component.
NOTE: Before removing the optical transceivers, we recommend that you disable the interface
using the set interfaces interface-name disable command.
Hardware Redundancy of ACX5400 Router Components and Functionality
The following hardware components provide redundancy on ACX5400 routers:
Power supply modules (PSMs)—The ACX5400 routers have two PSMs. Each PSM provides power to all
•
components in the router. If two PSMs are installed, they provide full power redundancy to the device.
If one PSM fails or if you remove one PSM, then the second PSM balances the electrical load without
interruption.
To provide power redundancy to the system, both PSMs must be installed. Connect the first power
source feed to one PSM and the other power source to the second PSM.
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CAUTION: Do not connect both the power source feeds to the same power supply
input terminal.
Cooling system—The ACX5400 routers have six fan modules. If a fan module fails and is unable to keep
•
the router within the desired temperature thresholds, chassis alarms occur and the router can eventually
shut down. The router can work with one failed fan module for a long duration, but for the router to
work efficiently you must replace the failed fan module immediately.
ACX5400 Routers Hardware and CLI Terminology Mapping
Table 6 on page 28 describes the hardware terms used in ACX5400 router documentation and the
corresponding terms used in the Junos OS command line interface (CLI).
Table 6: CLI Equivalents of Terms Used in Documentation for ACX5400 Routers
Hardware
Item (as
Displayed
in the CLI)
Description (as
Displayed in the
CLI)
Value (as
Displayed in the
CLI)
Item in
Documentation
Additional Information
28
Chassis
Engine
FPC n
PIC n
ACX5448-D
ACX5448-M
Abbreviated name of
the Flexible PIC
Concentrator (FPC;
an FPC is equivalent
to a line card)
Abbreviated name of
the Physical
Interface Card (PIC)
Value of n is always
0.
Value of n is a
value in the range
of 0-1.
Router chassis–ACX5448
Built-in Routing Engine.–Routing EngineRouting
The router does not
have actual FPCs. In
this case, FPC refers to
the router itself.
Built-in FPC.
The router does not
have actual PIC
devices; see entries for
PIC n for the equivalent
item on the router.
Built-in network ports
on the front panel of
the router are mapped
to logical PICs.
“Chassis Physical
Specifications for ACX5400
Routers” on page 66
Interface Naming
Conventions Used in the
Junos OS Operational
Commands
Interface Naming
Conventions Used in the
Junos OS Operational
Commands
xcvr n
Abbreviated name of
the transceiver
equivalent to the
number of the port
in which the
transceiver is
installed.
Optical transceiversn is a value
Port and Interface
Specifications
Table 6: CLI Equivalents of Terms Used in Documentation for ACX5400 Routers (continued)
Hardware
Item (as
Displayed
in the CLI)
Description (as
Displayed in the
CLI)
Value (as
Displayed in the
CLI)
Item in
Documentation
Additional Information
29
Power supplyPEM n
FanFan tray
n is a value in the
range of 0—1.
range of 0-5.
AC power supply
module
DC power supply
module
Fann is a value in the
“AC Power Supply for
ACX5400 Routers” on
page 53
“DC Power Supply for
ACX5400 Routers” on
page 57
“Cooling System and
Airflow in ACX5448,
ACX5448-D, and
ACX5448-M Routers” on
page 47
ACX5400 System Software Overview
The ACX5400 routers run the Junos operating system (OS), which provides Layer 2 and Layer 3 switching,
routing, and security services. Junos OS is installed on an ACX5400 router’s 100-gigabyte (GB) internal
solid-state flash drive. The same Junos OS code base that runs on an ACX5400 router also runs on all
Juniper Networks QFX and EX Series switches, SRX Series devices, and on MX Series, ACX Series, and
PTX Series routers.
For more information about which features are supported on an ACX5400 router, see Feature Explorer.
You manage the router using the Junos OS command-line interface (CLI), accessible through the console
and out-of-band management ports on the router.
ACX5448, ACX5448-D, and ACX5448-M Chassis
g100235
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7 6 5 4 3
2
IN THIS SECTION
Management Panel of ACX5400 Routers | 30
Port Panel of ACX5400 Routers | 32
Chassis Status LEDs on ACX5400 Routers | 37
Management Port LEDs on ACX5400 Routers | 40
Network Port LEDs on ACX5400 Routers | 41
Fan Status LEDs on ACX5400 Routers | 43
Power Supply LEDs on ACX5400 Routers | 44
30
The front panel on the ACX5400 chassis contains LEDs for the router components, a reset button,
management and console ports, and network ports. On the front panel, you can view status and
troubleshooting information at a glance.
The rear panel of the router has slots for the power supply modules (PSMs) and fan modules. The power
and fan modules are installed from the rear of the router.
Management Panel of ACX5400 Routers
The management panel of ACX5400 routers is found on the front of the router.
Figure 16 on page 30 shows the management panel components on an ACX5448 router.
Figure 16: Management Panel Components on ACX5448
Figure 17 on page 31 shows the management panel components on an ACX5448-D router.
Figure 17: Management Panel Components on ACX5448-D
g100522
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7 6 5 4 3
2
g100703
1 2
456 37
Figure 18 on page 31 shows the management panel components on ACX5448-M routers.
Figure 18: Management Panel Components on ACX5448-M
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5—1— USB portManagement (MGMT) port
6—2— RESET buttonConsole (CON) port
7—3— Status LEDsLINK and ST LEDs
4—PPS and 10M GPS output ports
The management panel consists of the following components:
Status LEDs—ALM, SYS, MST, and ID LEDs
•
Router product number
•
Management (MGMT) port— RJ-45 connectors for 10/100/1000BASE-T. See “Connect an ACX5400
•
Router to a Network for Out-of-Band Management” on page 107.
Console (CON) port— RJ-45 connector to support RS-232 serial ports.
•
Link activity (left LED labeled LINK) and port status (right LED labeled ST) LEDs.
•
USB port for image updates.
•
Reset button to reset the device.
•
Two SMB connector ports that support 1-PPS and 10-MHz timing devices.
•
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