Juniper ACX2000 User manual

ACX2000 and ACX2100 Universal Metro

Router Hardware Guide

Published

2020-09-07

Juniper Networks, Inc.

1133 Innovation Way

Sunnyvale, California 94089

USA

408-745-2000

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.

ACX2000 and ACX2100 Universal Metro Router Hardware Guide

The information in this document is current as of the date on the title page.

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.

ii

Table of Contents

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

Overview

1

ACX2000 and ACX2100 System Overview | 17

ACX2000 and ACX2100 Universal Metro Router Overview | 17

Benefits of the ACX2000 and ACX2100 Routers | 18

ACX2000 Router Description | 18

ACX2100 Router Description | 19

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping | 20

ACX2000 Hardware and CLI Terminology Mapping | 20

ACX2100 Hardware and CLI Terminology Mapping | 22

Packet Flow on ACX Series Routers | 24

Protocols and Applications Supported by ACX Series Routers | 26

ACX2000 Chassis Components | 47

Front Panel of an ACX2000 Router | 47

Front Panel of an ACX2100 Router | 48

Uplink Ports on ACX2000 and ACX2100 Routers | 50

T1/E1 Ports | 51

Gigabit Ethernet RJ-45 Ports | 52

PoE Ports | 52

Gigabit Ethernet SFP Ports | 53

iii

10-Gigabit Ethernet SFP+ Ports | 54

ACX2000 and ACX2100 Alarm Contact Port | 54

Clocking Ports on the ACX2000 and the ACX2100 Router | 56

LEDs on ACX2000 and ACX2100 Routers | 57

System LED on the Front Panel | 57

T1/E1 Port LEDs | 58

Ethernet Port LEDs | 58

PoE Port LEDs | 59

SFP and SFP+ Port LEDs | 59

Management and Console Port LEDs on the Front Panel | 60

Cooling System and Airflow in an ACX2000 and ACX2100 Router | 60

ACX2000 Power System | 61

ACX2000 and ACX2100 Power Overview | 62

ACX2100 AC Power Specifications | 62

ACX2100 AC Power Cord Specifications | 63

ACX2000 and ACX2100 DC Power Specifications | 65

Site Planning, Preparation, and Specifications

2

Site Preparation Checklist for ACX2000 and ACX2100 Routers | 68

ACX2000 and ACX2100 Site Guidelines and Requirements | 69

General Site Guidelines | 70

Site Electrical Wiring Guidelines | 70

Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100

Routers | 71

Chassis Physical Specifications for ACX2000 and ACX2100 Routers | 72

ACX2000 and ACX2100 Router Environmental Specifications | 73

ACX2000 and ACX2100 Chassis Grounding Cable and Lug Specifications | 74

Grounding Points Specifications | 74

Grounding Cable Lug Specifications | 75

Grounding Cable Specifications | 76

Cabinet Requirements for ACX2000 and ACX2100 Routers | 76

iv

Rack Requirements for ACX2000 and ACX2100 Routers | 78

ACX2000 and ACX2100 Network Cable and Transceiver Planning | 80

Determining Transceiver Support and Specifications | 80

Calculating Power Budget and Power Margin for Fiber-Optic Cables | 81

How to Calculate Power Budget for Fiber-Optic Cable | 81

How to Calculate Power Margin for Fiber-Optic Cable | 82

Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 83

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 83

Attenuation and Dispersion in Fiber-Optic Cable | 84

ACX2000 and ACX2100 Alarm, Management, and Clocking Cable Specifications and

Pinouts | 85

Alarm Contact Port Pinouts on the ACX2000 and ACX2100 Router | 85

Management Port Connector Pinout Information for ACX Series Routers | 87

Console or Auxiliary Port Connector Pinout on ACX Series Routers | 88

USB Port Specifications for an ACX Series Router | 89

Clocking Ports Specifications on the ACX2000 and the ACX2100 Router | 89

External Clocking Port Connector Specifications | 90

External Clocking Input Port Specifications | 90

Initial Installation and Configuration

3

Installing and Connecting an ACX2000 or ACX2100 Router Overview | 93

Unpacking and Mounting the ACX2000 and ACX2100 Routers | 94

Unpacking an ACX2000 or ACX2100 Router | 94

Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router | 95

Installing the ACX2000 or ACX2100 Mounting Brackets | 96

Installing the ACX2000 or ACX2100 Router in the Rack | 97

Connecting the ACX2000 and ACX2100 Routers to Power | 99

Connecting the ACX2000 or ACX2100 Router to Earth Ground | 100

Connecting DC Power Cables to the ACX2000 or ACX2100 Router | 102

Connecting AC Power Cords to the ACX2100 Router | 104

v

Connecting the ACX2000 and ACX2100 to External Devices | 105

Connecting ACX2000 or ACX2100 Routers to Management Devices | 106

Connecting the Router to a Network for Out-of-Band Management | 106

Connecting the Router to a Management Console or Auxiliary Device | 107

Connecting ACX2000 or ACX2100 Routers to External Clocking Devices | 108

Connecting 1-PPS and 10-MHz Timing Devices to the Router | 108

Connecting a T1 or E1 External Clocking Device to the Router | 109

Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device | 110

Initially Configuring the ACX2000 or ACX2100 Router | 111

Maintaining Components

4

Maintaining ACX2000 and ACX2100 Components | 117

Routine Maintenance Procedures for the ACX2000 and ACX2100 Router | 117

Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports | 117

Maintaining the ACX2000 and ACX2100 Uplink Ports | 118

Removing a Transceiver from the ACX2000 or ACX2100 | 119

Installing a Transceiver in the ACX2000 or ACX2100 | 121

Replacing an ACX2000 or ACX2100 Management Ethernet Cable | 122

Removing an ACX2000 or ACX2100 Management Ethernet Cable | 122

Installing an ACX2000 and ACX2100 Management Ethernet Cable | 123

Replacing an ACX2000 or ACX2100 Console or Auxiliary Cable | 123

Removing an ACX2000 or ACX2100 Console or Auxiliary Cable | 123

Installing an ACX2000 or ACX2100 Console or Auxiliary Cable | 124

Troubleshooting Hardware

5

Troubleshooting ACX2000 and ACX2100 | 126

Troubleshooting Resources for ACX2000 and ACX2100 Routers | 126

Command-Line Interface | 126

Front Panel LEDs | 126

Monitoring System Log Messages | 127

Alarm Types and Severity Classes on ACX Series Routers | 127

Alarm Types | 128

Alarm Severity Classes | 128

Verifying Active Alarms | 128

vi

Contacting Customer Support and Returning the Chassis or Components

6

Contacting Customer Support and Returning the Chassis or Components | 131

How to Return a Hardware Component to Juniper Networks, Inc. | 131

Locating the Serial Number on a ACX2000 or ACX2100 Chassis or Component | 132

ACX2000 and ACX2100 Chassis Serial Number Label | 133

Guidelines for Packing Hardware Components for Shipment | 133

Packing the ACX Series Router for Shipment | 134

Safety and Compliance Information

7

General Safety Guidelines and Warnings | 137

Definitions of Safety Warning Levels | 138

Qualified Personnel Warning | 141

Warning Statement for Norway and Sweden | 142

Installation Instructions Warning | 142

Chassis and Component Lifting Guidelines | 143

Restricted Access Warning | 144

Ramp Warning | 146

Rack-Mounting and Cabinet-Mounting Warnings | 147

Grounded Equipment Warning | 153

Radiation from Open Port Apertures Warning | 154

Laser and LED Safety Guidelines and Warnings | 155

General Laser Safety Guidelines | 155

Class 1 Laser Product Warning | 156

Class 1 LED Product Warning | 157

Laser Beam Warning | 158

Maintenance and Operational Safety Guidelines and Warnings | 158

Battery Handling Warning | 160

Jewelry Removal Warning | 161

Lightning Activity Warning | 163

vii

Operating Temperature Warning | 164

Product Disposal Warning | 166

General Electrical Safety Guidelines and Warnings | 167

Action to Take After an Electrical Accident | 168

Prevention of Electrostatic Discharge Damage | 168

ACX2100 AC Power Electrical Safety Guidelines | 170

AC Power Disconnection Warning | 171

ACX2000 and ACX2100 DC Power Electrical Safety Guidelines | 172

DC Power Copper Conductors Warning | 173

DC Power Disconnection Warning | 174

DC Power Grounding Requirements and Warning | 176

DC Power Wiring Sequence Warning | 178

DC Power Wiring Terminations Warning | 181

Midplane Energy Hazard Warning | 183

Multiple Power Supplies Disconnection Warning | 184

TN Power Warning | 185

Agency Approvals for ACX2000 and ACX2100 Routers | 185

Compliance Statements for NEBS for ACX2000 and ACX2100 Routers | 187

Compliance Statements for EMC Requirements for ACX2000 and ACX2100 Routers | 188

Canada | 188

European Community | 188

Israel | 188

Japan | 189

United States | 189

Compliance Statements for Environmental Requirements | 190

Compliance Statements for Acoustic Noise for ACX2000 and ACX2100 Routers | 190

viii

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 ACX2000 and ACX2100 Universal Metro router. 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.

ix

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;

}

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

x

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]

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.

xi

Table 1: Notice Icons

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Indicates a situation that might result in loss of data or hardware

damage.

Caution

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

To enter configuration mode, type

the configure command:

user@host> configure

Represents text that you type.Bold text like this

user@host> show chassis alarms

No alarms currently active

Represents output that appears on

the terminal screen.

Fixed-width text like this

•

A policy term is a named structure

that defines match conditions and

actions.

•

Junos OS CLI User Guide

•

RFC 1997, BGP Communities

Attribute

•

Introduces or emphasizes important

new terms.

•

Identifies guide names.

•

Identifies RFC and Internet draft

titles.

Italic text like this

xii

Table 2: Text and Syntax Conventions (continued)

ExamplesDescriptionConvention

Configure the machine’s domain

name:

[edit]

root@# set system domain-name

domain-name

Represents variables (options for

which you substitute a value) in

commands or configuration

statements.

Italic text like this

•

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.

Represents names of configuration

statements, commands, files, and

directories; configuration hierarchy

levels; or labels on routing platform

components.

Text like this

stub <default-metric metric>;Encloses optional keywords or

variables.

< > (angle brackets)

broadcast | multicast

(string1 | string2 | string3)

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.

| (pipe symbol)

rsvp { # Required for dynamic MPLS

only

Indicates a comment specified on the

same line as the configuration

statement to which it applies.

# (pound sign)

community name members [

community-ids ]

Encloses a variable for which you can

substitute one or more values.

[ ] (square brackets)

[edit]

routing-options {

static {

route default {

nexthop address;

retain;

}

Identifies a level in the configuration

hierarchy.

Indention and braces ( { } )

Identifies a leaf statement at a

configuration hierarchy level.

; (semicolon)

GUI Conventions

xiii

Table 2: Text and Syntax Conventions (continued)

ExamplesDescriptionConvention

•

In the Logical Interfaces box, select

All Interfaces.

•

To cancel the configuration, click

Cancel.

Represents graphical user interface

(GUI) items you click or select.

Bold text like this

In the configuration editor hierarchy,

select Protocols>Ospf.

Separates levels in a hierarchy of

menu selections.

> (bold right angle bracket)

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 [email protected]. 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

xiv

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/

•

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/.

xv

1

CHAPTER

Overview

ACX2000 and ACX2100 System Overview | 17

ACX2000 Chassis Components | 47

Cooling System and Airflow in an ACX2000 and ACX2100 Router | 60

ACX2000 Power System | 61

ACX2000 and ACX2100 System Overview

IN THIS SECTION

ACX2000 and ACX2100 Universal Metro Router Overview | 17

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping | 20

Packet Flow on ACX Series Routers | 24

Protocols and Applications Supported by ACX Series Routers | 26

ACX2000 and ACX2100 Universal Metro Router Overview

IN THIS SECTION

Benefits of the ACX2000 and ACX2100 Routers | 18

ACX2000 Router Description | 18

ACX2100 Router Description | 19

The ACX2000 and ACX2100 Universal Metro Routers are principally designed to provide superior

management for rapid provisioning to the access network. The ACX Series routers support rich Gigabit

Ethernet and 10-Gigabit Ethernet capabilities for uplink, along with support for legacy interfaces and

Gigabit Ethernet interfaces for radio and NodeB connectivity in a compact form factor that is

environmentally hardened and passively cooled. Seamless, end-to-end MPLS can be used to address legacy

and emerging requirements to provide the foundation for a converged network that utilizes the same

mobile backhaul infrastructure for business or residential services.

The ACX Series router is a single-board router with a built-in Routing Engine and one Packet Forwarding

Engine. Because there is no switching fabric, the single Packet Forwarding Engine takes care of both ingress

and egress packet forwarding:

•

Routing Engine—Provides Layer 3 routing services and network management.

•

Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route lookups, and packet

forwarding.

17

The ACX Series router is powered by Junos OS, supporting extensive L2 and L3 features, IP and MPLS

with traffic engineering, rich network management, fault management, service monitoring and Operation,

Administration, and Maintenance (OAM) capabilities, and an open software development kit (SDK) system

that allows providers to customize and integrate operations with their own management systems. For a

list of related Junos OS documentation, see https://www.juniper.net/documentation/software/junos/.

As part of the mobile backhaul, the ACX Series router at the cell site and the MX Series router at the

aggregation layer provide comprehensive end-to-end Ethernet, MPLS, and OAM features with the one

Junos OS running on both platforms.

The compact routers are one rack unit (U; that is, 1.75 in., or 4.45 cm) tall. Several routers can be stacked

in a single floor-to-ceiling rack for increased port density per unit of floor space.

The chassis is a rigid sheet metal structure that houses all the other router components. The chassis

measures 1.75 in. (4.45 cm) high, 9.4 in. (24 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the

mounting brackets extend the width to 19 in. (48 cm) (from the front-mounting brackets to the rear of the

chassis). The chassis installs in standard 300-mm deep (or larger) enclosed cabinets, 19-in. equipment

racks, or telco open-frame racks.

Benefits of the ACX2000 and ACX2100 Routers

•

Improved operational efficiency with zero-touch deployment (ZTD)—The ACX Series routers support

a zero-touch deployment (ZTD) model that significantly reduces the time for any new equipment

installation and provisioning, resulting in improved operational efficiency.

•

Installation flexibility with an environmentally hardened design—Most ACX Series routers are temperature

hardened and support passive cooling for outdoor deployments in extreme weather conditions.

ACX2000 Router Description

The ACX2000 router contains sixteen T1/E1 ports, six Gigabit Ethernet ports, and two PoE ports. The

ACX2000 router also supports installation of two Gigabit Ethernet SFP transceivers and two 10-Gigabit

Ethernet SFP+ transceivers.

The ACX2000 router has one “pseudo” Flexible PIC Concentrator (FPC 0), and four “pseudo” PICs (PIC 0

through 3).

Figure 1 on page 19 shows the front view of the ACX2000 router. Figure 2 on page 19 shows the rear

view.

18

Figure 1: Front View of the ACX2000 Router

g006402

ACX2000

0/0/12

0/0/13

0/0/14

0/0/4

0/0/5

0/0/6

0/0/7

0/0/15

0/0/8

0/0/9

0/0/10

0/0/11

0/1/0

0/1/1

0/1/2

0/1/3 POE

0/1/4

0/1/5

0/1/6

0/1/7 POE

EXT REF CLK IN

GE

XE

Figure 2: Rear View of the ACX2000 Router

g006403

ACX2100 Router Description

The ACX2100 router contains sixteen T1/E1 ports, and four Gigabit Ethernet ports. The ACX2100 router

also contains two ports for installing Gigabit Ethernet SFP transceivers and two ports for installing 10-Gigabit

Ethernet SFP+ transceivers. The ports labeled COMBO PORTS provide an additional four copper Gigabit

Ethernet ports or four Gigabit Ethernet SFP ports. You can use only one set of combination ports at a time.

The ACX2100 router has two “pseudo” Flexible PIC Concentrators (FPC 0 and FPC 1), and four “pseudo”

PICs (PIC 0 through 3).

Figure 3 on page 19 shows the front view of the ACX2100 router. Figure 4 on page 19 shows the rear

view.

Figure 3: Front View of the ACX2100 Router

g017844

Figure 4: Rear View of the ACX2100 Router

g006403

19

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