Juniper ACX7348 Istruzioni per l'installazione

ACX7348 Cloud Metro Router Hardware

Guide

Published

2023-12-18

Juniper Networks, Inc.

1133 Innovaon 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 respecve 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 publicaon without noce.

ACX7348 Cloud Metro Router Hardware Guide

The informaon in this document is current as of the date on the tle page.

YEAR 2000 NOTICE

Juniper Networks hardware and soware products are Year 2000 compliant. Junos OS has no known me-related

limitaons through the year 2038. However, the NTP applicaon is known to have some diculty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentaon consists of (or is intended for use

with) Juniper Networks soware. Use of such soware is subject to the terms and condions of the End User License

Agreement ("EULA") posted at hps://support.juniper.net/support/eula/. By downloading, installing or using such

soware, you agree to the terms and condions of that EULA.

Table of Contents

About This Guide | viii

Fast Track: Inial Installaon

Fast Track to Rack Installaon and Power | 2

Install the ACX7348 in a Rack | 2

Connect to Power | 3

Overview

ACX7348 System Overview | 7

ACX7348 Router Descripon | 7

Benets of ACX7348 Routers | 8

ACX7348 Field-Replaceable Units | 8

ACX7348 Router Component Redundancy | 9

ACX7348 System Soware Overview | 10

ACX7348 Chassis | 10

ACX7348 Chassis Descripon | 10

ACX7348 Physical Specicaons | 15

Cooling System and Airow in ACX7348 Routers | 16

Fan Trays | 17

Fan Status LEDs | 17

Airow | 19

Air Filter Unit | 20

Power Supply Cooling System | 21

ACX7348 Power System | 21

ACX7348 AC Power Supply Module Descripon | 22

ACX7348 DC Power Supply Module Descripon | 27

iii

ACX7348 Roung Engine | 31

ACX7300 Flexible PIC Concentrators | 36

ACX7K3-FPC-2CD4C | 37

FPC LEDs | 40

Site Planning, Preparaon, and Specicaons

ACX7348 Site Guidelines and Requirements | 43

Environmental Requirements and Specicaons for ACX7348 Routers | 43

General Site Guidelines | 44

Site Electrical Wiring Guidelines | 44

ACX7348 Grounding Cable and Lug Specicaons | 46

Clearance Requirements for Airow and Hardware Maintenance of ACX7348 Routers | 47

ACX7348 Rack and Cabinet Requirements | 48

Rack Requirements for ACX7348 Routers | 48

Cabinet Requirements for ACX7348 Routers | 49

ACX7348 Network Cable and Transceiver Planning | 51

Determining Transceiver Support for ACX7348 | 51

Cable and Connector Specicaons for ACX7348 | 55

Calculang Power Budget and Power Margin for Fiber-Opc Cables | 63

How to Calculate Power Budget for Fiber-Opc Cables | 63

How to Calculate Power Margin for Fiber-Opc Cables | 64

ACX7348 Management and Console Port Specicaons and Pinouts | 66

Management Cable Specicaons for ACX7348 Routers | 66

Management Port Connector Pinout Informaon for ACX7348 Routers | 67

Console Port Connector Pinout on ACX7348 Routers | 67

Inial Installaon and Conguraon

Unpack an ACX7348 Router | 70

Unpack the ACX7348 Shipping Pallet | 70

Compare the ACX7348 Order to the Packing List | 71

Install the ACX7348 in a Rack | 72

Mount an ACX7348 in a Two-Post Rack | 72

Mount an ACX7348 in a Four-Post Rack | 74

Connect ACX7348 to Power | 79

Connect Earth Ground to ACX7348 Routers | 79

Connect AC Power to an ACX7348 Router | 81

Connect DC Power to an ACX7348 Router | 83

Connect ACX7348 to External Devices | 87

Connect an ACX7348 Router to a Management Console | 87

Connect an ACX7348 Router to a Network for Out-of-Band Management | 88

Connect to 1-PPS and 10-MHz Timing Devices | 89

Connect an ACX7348 Router to a GNSS Antenna | 90

Perform Inial Soware Conguraon for ACX7348 Routers | 93

Maintaining Components

ACX7348 Fan Tray Maintenance | 99

Remove a Fan Tray from the ACX7348 Router | 99

Remove a Fan Tray from the Rear of the Chassis | 100

Remove a Fan Tray from the Front of the Chassis | 100

Install a Fan Tray in the ACX7348 Router | 101

ACX7348 Air Filter Unit Maintenance | 102

Install Air Filter Unit in a Two-Post Rack | 103

Install Air Filter Unit in a Four-Post Rack | 105

Replace the Air Filter | 108

Remove the Air Filter | 108

Install the Air Filter | 109

ACX7348 Power Supply Module Maintenance | 110

Remove an ACX7348 AC Power Supply Module | 110

Install an ACX7348 AC Power Supply Module | 111

Remove an ACX7348 DC Power Supply Module | 113

Install an ACX7348 DC Power Supply Module | 115

ACX7348 Roung Engine Maintenance | 118

Remove the Roung Engine from the ACX7348 Router | 118

Install the Roung Engine in the ACX7348 Router | 119

ACX7348 Flexible PIC Concentrator Maintenance | 120

Remove a Flexible PIC Concentrator from the ACX7348 Router | 121

Install a Flexible PIC Concentrator in the ACX7348 Router | 123

Troubleshoong Hardware

Troubleshoong the ACX7348 Router | 126

Alarm Types and Severity Classes on ACX7348 Routers | 126

Contacng Customer Support and Returning the Chassis or Components

Returning an ACX7348 Chassis or Components | 129

How to Return a Hardware Component to Juniper Networks, Inc. | 129

How to Locate the Serial Number on an ACX7348 Router or Component | 130

List the Chassis and Component Details Using the CLI | 131

Locate the Chassis Serial Number ID Label on an ACX7348 Router | 131

Locate the Serial Number ID Label on an ACX7348 Fan Tray | 132

Locate the Serial Number ID Label on an ACX7348 Power Supply Module | 132

Locate the Serial Number ID Label on an ACX7348 Roung Engine | 133

Locate the Serial Number ID Label on an ACX7348 Flexible PIC Concentrator | 134

Contact Customer Support to Obtain Return Material Authorizaon | 135

Guidelines for Packing and Shipping Hardware Components | 136

Safety and Compliance Informaon

Safety Informaon | 138

Compliance Statements for NEBS | 138

Compliance Statements for EMC Requirements | 138

Compliance Standards for ACX7348 Routers | 140

vii

About This Guide

Use this guide to install hardware and perform inial soware conguraon, roune maintenance, and

troubleshoong for the ACX7348 Cloud Metro Router.

Aer compleng the installaon and basic conguraon procedures covered in this guide, refer to the

Junos OS Evolved documentaon for informaon about further soware conguraon.

viii

CHAPTER

Fast Track: Inial Installaon

Fast Track to Rack Installaon and Power | 2

Fast Track to Rack Installaon and Power

SUMMARY

This procedure guides you through the simplest

steps for the most common installaon to get your

ACX7348 router in a rack and connect it to power.

Have more complex installaon needs? See "Install

the ACX7348 in a Rack" on page 72.

IN THIS SECTION

Install the ACX7348 in a Rack | 2

Connect to Power | 3

Install the ACX7348 in a Rack

You can install an ACX7348 router into a two-post rack, four-post rack, or a cabinet. We’ll walk you

through the steps to install an AC-powered ACX7348 router in a two-post rack.

Before you install, review the following:

•"ACX7348 Site Guidelines and Requirements" on page 43

•General Safety Guidelines and Warnings

1. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end

of the strap to the ESD point on the device.

2. Grasp both sides of the router, li the router, and posion it in the rack, aligning the holes of the

mounng brackets with the holes in the front post of the rack. Align the boom hole in both the

mounng brackets with a hole in each rack post, making sure that the chassis is level.

3. Secure the mounng brackets to the rack by using four screws appropriate for your rack. Tighten the

screws.

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