Cisco ASR-920-12CZ-A, ASR 920 Series, ASR-920-12CZ-D, ASR-920-4SZ-A, ASR-920-4SZ-D Hardware Installation Manual

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

October 13, 2014

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Preface 5

CONTENTS

CHAPTER

CHAPTER

1 Cisco ASR 920 Series Aggregation Services Router Overview 1-1

Cisco ASR 920 Router Features 1-1

GigabitEthernet Copper Ports 1-2
GE SFP Ports 1-2
SFP+ Ports 1-2
External Interfaces 1-6

Network Interfaces 1-6
Network Timing Interfaces 1-6
External Alarm Inputs 1-6
Management Interfaces 1-6
Power Supply and Fans 1-8

LED Indicators 1-8
Online Insertion and Removal 1-12
Licensing the Cisco ASR 920 Router 1-12

2 Preparing for Installation 2-1

Safety Guidelines 2-1

Standard Warning Statements 2-2
Safety Guidelines for Personal Safety and Equipment Protection 2-3
Safety Precautions for Module Installation and Removal 2-3
Safety with Electricity 2-3
Power Supply Considerations 2-8
Preventing ESD Damage 2-8

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Site Planning 2-9

General Precautions 2-9
Site Planning Checklist 2-9
Site Selection Guidelines 2-10

Environmental Requirements 2-10

Physical Characteristics 2-10
Air Flow Guidelines 2-11

Air Flow Guidelines for ETSI Rack Installation 2-13

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

1

Contents

Floor Loading Considerations 2-14
Site Power Guidelines 2-14

Electrical Circuit Requirements 2-14

Site Cabling Guidelines 2-15

Asynchronous Terminal Connections 2-15
Interference Considerations 2-15

Rack-Mounting Guidelines 2-16

Precautions for Rack-Mounting 2-16
Rack Selection Guidelines 2-17

Equipment Rack Guidelines 2-17
Installation Checklist 2-19
Creating a Site Log 2-20

Receiving the Cisco ASR 920 Series Router 2-20

Chassis-Lifting Guidelines 2-21
Tools and Equipment 2-21
Unpacking and Verifying the Shipped Contents 2-22

CHAPTER

3 Installing the Cisco ASR 920 Series Router 3-1

Prerequisites 3-1

Installing the Router in a Rack 3-1

Installing the Chassis Brackets 3-2
Installing the Router Chassis in the Rack 3-6
Attaching the Cable Guides 3-7

Wall Mounting the Cisco ASR 920 Series Router 3-9

Attaching the Brackets to the Router for Wall-Mounting 3-9
Mounting Cisco ASR 920 Series Router on the Wall 3-10

Installing the AC Power Cables 3-12

Installing the DC Power Supply 3-14

Powering On the Router 3-15

Installing and Removing SFP Modules 3-15

Installing SFP Modules 3-16
Removing SFP Modules 3-17

Connecting to the 10/100/1000 Ports 3-18

Connecting to SFP Modules 3-19

Connecting to Fiber-Optic SFP Modules 3-19

Installing the Chassis Ground Connection 3-20

Power Connection Guidelines 3-22

Guidelines for DC-Powered Systems 3-22

Guidelines for AC-Powered Systems 3-22

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Preventing Power Loss 3-23
Activating a DC Power Supply 3-23
Activating an AC Power Supply 3-23

Connecting a Cisco ASR 920 Series Router to the Network 3-24

Connecting Console Cables 3-24

Connecting to the USB Serial Port Using Microsoft Windows 3-24
Connecting to the Console Port Using Mac OS X 3-27
Connecting to the Console Port Using Linux 3-27
Installing the Cisco Microsoft Windows USB Device Driver 3-28

Uninstalling the Cisco Microsoft Windows USB Driver 3-29
Connecting to the EIA Console Port 3-30
Connecting a Management Ethernet Cable 3-32
Installing and Removing SFP and SFP+ Modules 3-32
Connecting a USB Flash Device 3-32

Removing a USB Flash Device 3-33
Connecting Timing Cables 3-33

Connecting a Cable to the BITS Interface 3-33

Connecting Cables to a GPS Interface 3-34
Connecting Ethernet Cables 3-34
Connecting Cables to SFP Modules 3-35
Connector and Cable Specifications 3-35

Contents

CHAPTER

CHAPTER

4 Cisco ASR 920 Series Aggregation Services Router Initial Configuration 4-1

Checking Conditions Prior to System Startup 4-1

Powering Up the Cisco ASR 920 Series Router 4-2

Verifying the Front Panel LEDs 4-6
Verifying the Hardware Configuration 4-6
Checking Hardware and Software Compatibility 4-6

Configuring the Cisco ASR 920 Series Router at Startup 4-7

Accessing the CLI Using the Console 4-7
Configuring Global Parameters 4-8
Checking the Running Configuration Settings 4-9
Saving the Running Configuration to NVRAM 4-9

Safely Powering Off the Cisco ASR 920 Series Router 4-9

5 Troubleshooting 5-1

Pinouts 5-1

BITS Port Pinouts 5-1
Time-of-Day Port Pinouts 5-2

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Contents

Alarm Port Pinouts 5-2
Management Ethernet Port Pinouts 5-2
USB Console Port Pinouts 5-3
USB Flash or MEM Port Pinouts 5-3
Optical Fiber Specifications 5-4
Alarm Conditions 5-4

CHAPTER

CHAPTER

A Site Log A-1

B Supported SFPs and PIDs B-1

Supported SFPs B-1

Supported PIDs B-2

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Preface

The preface describes the revision history, audience, organization, and conventions of the
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide. It also lists sources for
obtaining additional information and technical assistance from Cisco.

This document covers the following variants of the Cisco ASR 920 Series Aggregation Services Routers:

• ASR-920-12CZ-A—Four 1G SFP ports, Eight 1G Copper/SFP Combo ports and Two 1G/10G Dual

Rate ports, with fixed redundant AC power supplies

• ASR-920-12CZ-D—Four 1G SFP ports, Eight 1G Copper/SFP Combo ports and Two 1G/10G Dual

Rate ports with fixed redundant DC power supplies

• ASR-920-4SZ-A—Two 1G copper ports and four 10G/1G SFP+/SFP ports with fixed redundant AC

power supplies

• ASR-920-4SZ-D—Two 1G copper ports and four 10G/1G SFP+/SFP ports with fixed redundant DC

power supplies

Document Revision History

The following table lists the major changes made to this document.

Release Date Change Summary

Cisco IOS XE Release

3.13.0S

July 29, 2014 First release.

Document Audience

This guide is intended for users who are responsible for installing the Cisco ASR 920 Series Aggregation
Services Router. It is intended for users who may not be familiar with the initial configuration and
troubleshooting tasks, the relationship among tasks, or the Cisco IOS software commands necessary to
perform particular tasks.

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Organization

This guide includes the following sections:

Title Description

Cisco ASR 920 Series Aggregation
Services Router Overview

Preparing for Installation Describes the installation of the Cisco ASR 920 Series

Installing the
Cisco ASR 920 Series Router

Cisco ASR 920 Series Aggregation Servic
es Router Initial Configuration

Troubleshooting Describes troubleshooting information.

Site Log Describes provide a record of actions related to installing

Supported SFPs and PIDs Describes the supported SFPs.

Describes the features and specifications of the Cisco
ASR 920 Series Aggregation Services Router.

Router at your site.

Describes the installation of router on a rack as well as
installation of its components.

Describes basic router configuration.

and maintaining the router.

Conventions

This document uses the following conventions:

Convention Indication

bold font Commands and keywords and user-entered text appear in bold font.

italic font Document titles, new or emphasized terms, and arguments for which you supply

values are in italic font.

[ ] Elements in square brackets are optional.

{x | y | z } Required alternative keywords are grouped in braces and separated by

vertical bars.

[ x | y | z ] Optional alternative keywords are grouped in brackets and separated by

vertical bars.

string A nonquoted set of characters. Do not use quotation marks around the string or

the string will include the quotation marks.

courier font Terminal sessions and information the system displays appear in courier font.

< > Nonprinting characters such as passwords are in angle brackets.

[ ] Default responses to system prompts are in square brackets.

!, # An exclamation point (!) or a pound sign (#) at the beginning of a line of code

indicates a comment line.

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

manual.

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Obtaining Documentation and Submitting a Service Request

Tip Means the following information will help you solve a problem. The tips information might not be

troubleshooting or even an action, but could be useful information, similar to a Timesaver.

Caution Means reader be careful. In this situation, you might perform an action that could result in equipment

damage or loss of data.

Timesaver Means the described action saves time. You can save time by performing the action described in

the paragraph.

Warning

Warning

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this device.

SAVE THESE INSTRUCTIONS

Statements using this symbol are provided for additional information and to comply with regulatory
and customer requirements.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a
service request, and gathering additional information, see What’s New in Cisco Product Documentation
at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html.

Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised
Cisco technical documentation as an RSS feed and delivers content directly to your desktop using a
reader application. The RSS feeds are a free service.

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Obtaining Documentation and Submitting a Service Request

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

8

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Cisco ASR 920 Series Aggregation Services Router Overview

The Cisco ASR 920 Series Aggregation Services Router is a family of fixed configuration routers that
enables Service Providers to provide business, residential, and mobile access services to their users. It
is the Carrier Ethernet access platform providing Ethernet services.

The Cisco ASR 920 routers complement and extend Cisco’s current and planned Carrier Ethernet routing
portfolio providing a cost optimized, and extended temperature range access platform.

The Cisco ASR 920 routers do not have high availability features.

Cisco ASR 920 Router Features

The Cisco ASR 920 family of routers includes:

• ASR 920-Indoor version [ASR-920-12CZ-A/ASR-920-12CZ-D]—This sub-family has fixed ENET

interfaces (12 x 1GE + 2 x 10GE or 2 x 1GE or any combinations of 1 GE and 10 GE among the two
ports available) and dual power supplies (AC/DC).

CHA P T ER

1

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• ASR 920-Compact version [ASR-920-4SZ-A/ASR-920-4SZ-D]—This sub-family of routers have a

compact form factor and configurable ports: 4 x 1 GE or 4 x 10 GE or any combinations of 1 GE
and 10 GE among the four ports available. In addition, there are 2 x 1 GE copper ports available.

The following table provides snapshot of the number and type of supported ports:

ASR 920 Sub-family 1 GE Port 10 GE Port Type of 1 GE Port Type of 10 GE Port

ASR-920-12CZ-A/
ASR-920-12CZ-D

ASR-920-4SZ-A/A
SR-920-4SZ-D

1. Each port can operate at either 1G or 10 G.

12 2

24

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

1

1

8 Combo + 4 SFP Built in 2 SFP+ (dual

rate)

2 Copper Built in 4 SFP+ (dual

rate)

1-1

Cisco ASR 920 Router Features

GigabitEthernet Copper Ports

Fixed copper GigabitEthernet (GE) interfaces are provided through standard RJ-45 connectors. These
ports support the following features:

• Standard 10/100/1000Base-T/TX operation with forced or auto-negotiation for speed and duplex.

• Automatic crossover (auto-MDIX) for straight-through and crossover connections.

• Pause flow control as defined by the 802.3x standard.

• Frame size of 9216 bytes.

• Synchronous ENET operation that provides its recovered receive clock as an input clock source for

the SETS as well as uses the system-wide reference clock to derive its transmit clock.

GE SFP Ports

The GE SFP ports support the following features:

• 100Base-FX and 1000Base-X SFP modules.

Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

SFP+ Ports

• Digital optical monitoring as specified by the SFP.

• Any mix of SFPs is supported unless specifically noted.

Note Only six Smart SFPs are supported on the router.

• Pause flow control as defined by the 802.3x standard.

• Frame size of 9216 bytes.

• Synchronous ENET operation that provides its recovered receive clock as an input clock source for

the SETS as well as uses the system-wide reference clock to derive its transmit clock.

Note Copper based SFPs and Smart SFPs do not support synchronous ENET operations.

The SFP+ ports support the following features:

• Digital optical monitoring as specified by the optical transceiver module.

• Any mix of SFPs is supported unless specifically noted.

• Pause flow control as defined by the 802.3x standard.

1-2

• Frame size of 9216 bytes.

• Smart SFPs do not support synchronous ENET operations

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

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Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

391646

11 2 53 7

9

10

64 12 14 16

8

1311

15 17

18

The following figures show the port numbering for the Cisco ASR 920 router:

Figure 1-1 Front Panel of Cisco ASR-920-12CZ-A Router

Figure 1-2 Front Panel of Cisco ASR-920-12CZ-D Router

Cisco ASR 920 Router Features

11 2 53 7

1 Power Supply 0 (AC or DC) 10 Eight Copper port

2 Power Supply 1(AC or DC) 11 1G/10G Dual Rate port

3 Power Supply 0 LED (AC or DC) 12 1G/10G Dual Rate port

4 Power Supply 1 LED (AC or DC) 13 USB Console port

5 RJ-48 slots for BITS (upper slot) and ToD

(lower slot)

6 Management port 15 USB Memory port

7 Console port (TIA/EIA-232F) 16 Board power LED

8 Auxiliary Console port 17 Zero Touch Provisioning button

9 4x1GE SFP + 8x1GE SFP combo ports 18 System Status LED

64 12 14 16

8

9

10

1311

15 17

14 Alarm port

18

391648

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Cisco ASR 920 Router Features

391649

11 2

5

3

9

10

6

4

12 14

11

13 15

16

7

8

Figure 1-3 Front Panel of Cisco ASR-920-4SZ-A Router

Figure 1-4 Front Panel of Cisco ASR-920-4SZ-D Router

Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

11 2

1 Power Supply 0 (AC or DC) 9 2 1GE Copper ports

2 Power Supply 1 (AC or DC) 10 Four 1G/10G Dual Rate Ports

3 Power Supply 0 LED (AC or DC) 11 USB Console port

4 Power Supply 1 LED (AC or DC) 12 Alarm port

5 RJ-48 slots for BITS (upper slot) and ToD

6 Management port 14 Board power LED

7 Console port (TIA/EIA-232F) 15 Zero Touch Provisioning button

8 Auxiliary Console port 16 System Status LED

(lower slot)

4

3

6

8

7

5

9

10

12 14

13 15

11

16

391650

13 USB Memory port

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1-4

Table 1-1 describes the other features of Cisco ASR-920-12CZ (AC and DC) and Cisco ASR-920-4SZ

(AC and DC) Routers.

Table 1-1 Cisco ASR-920-12CZ and Cisco ASR-920-4SZ Router Specifications

Specification ASR-920-12CZ-A/ASR-920-12CZ-D ASR-920-4SZ-A/ASR-920-4SZ-D

Dimension

17.5 x 9.25 x 1.75 inches 15.5 x 9.25 x 1.75 inches
Width x Depth x
Height

Weight ASR-920-12CZ-A: 3.80 kg

ASR-920-12CZ-D: 3.54 kg

ASR-920-4SZ-A: 3.50 kg

ASR-920-4SZ-D: 3.22 kg

Rack Unit One RU One RU

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Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

Table 1-1 Cisco ASR-920-12CZ and Cisco ASR-920-4SZ Router Specifications (continued)

Specification ASR-920-12CZ-A/ASR-920-12CZ-D ASR-920-4SZ-A/ASR-920-4SZ-D

Airflow Front to back Front to back

Cable access Front cable access Front cable access

System throughput 32 Gbps 42 Gbps

Power Supply

Modularity None None

Redundant Yes Yes

AC Yes Yes

Power

115 W 105 W

Specification

DC Yes Yes

Power

110 W 105 W

Specification

Operating
Tem p e r a t u r e

–40º C to 70º C

Note When using Smart SFPs, the

systems should not operate
beyond 40º C.

Cisco ASR 920 Router Features

–40º C to 70º C

Note When using Smart SFPs, the

systems should not operate
beyond 40º C.

Alarms

Note The temperature range will

vary for supported SFP/SFP+
installed on the router. See the
corresponding SFP/SFP+
documentation for more
details.

• 4 alarm dry contact inputs

(normally open)

• LED indicators for critical, major

and minor alarms

Note The temperature range will

vary for supported SFP/SFP+
installed on the router. See the
corresponding SFP/SFP+
documentation for more
details.

• 4 alarm dry contact inputs

(normally open)

• LED indicators for critical, major

and minor alarms

TDM Support None None

Mounting option

• Front or rear rail 19 inches or 23

inches

• ETSI 300 mm cabinet

• Wall Mount (with only side

mount option).

Note For more information, see

Wall Mounting the
Cisco ASR 920 Series Router
, page 3-9.

• Front or rear rail 19 inches or 23

inches

• ETSI 300 mm cabinet

• Wall Mount (with only side

mount option)

Note For more information, see

Wall Mounting the
Cisco ASR 920 Series Router
, page 3-9.

Port Configuration 12x1G and 2x10G/1G ports 2x1G and 4x10G/1G ports

Port Numbering 4x1G SFP – Port [0:3]

8x1G Combo – Port [4:11]

2x1G Copper – Port [0:1]

4x10G – Port [2-5]

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2x10G – Port [12-13]

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Cisco ASR 920 Router Features

Table 1-1 Cisco ASR-920-12CZ and Cisco ASR-920-4SZ Router Specifications (continued)

Specification ASR-920-12CZ-A/ASR-920-12CZ-D ASR-920-4SZ-A/ASR-920-4SZ-D

Combo Ports Ports 4 to 11 are combo ports No combo ports

Copper Port LEDs Link/Activity/Duplex LED indication Link/Activity/Duplex LED indication

Temperature Sensors Four temperature sensors Three temperature sensors

BITS/ToD External ports for BITS/TOD External ports for BITS/TOD

External Interfaces

The Cisco ASR 920 routers have these external physical interfaces on the front panel:

Network Interfaces

The network interfaces are provided through fixed ports.

• GE SFP ports—supports 100/1000 modes

Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

• GE Copper RJ-45 ports—supports 10/100/1000 operation

• 10GE SFP+—supports 10G/1G mode depending on the SFP+/SFP in the network interface slot.

Network Timing Interfaces

• BITS input or output—The BITS interfaces support clock recovery from either a T1 at 1.544 MHz

or an E1 at 2.048 MHz, configurable by software. BITS interface is provided through a standard
RJ-48 connector on the front panel.

• 1PPS input or output and ToD input or output—This shielded RJ-45 interface is used for input

or output of time-of-day (ToD) and 1PPS pulses. ToD format includes both NTP and IEEE
1588-2008 time formats.

The same RS422 pins for 1PPS and TOD are shared between input and output directions. The
direction for each can be independently configurable through software.

External Alarm Inputs

The Cisco ASR 920 router supports four dry contact alarm inputs through an RJ-45 jack on the front
panel.

• Normally Open—indicates that no current flows through the alarm circuit and the alarm is

generated when the current is flowing.

Each alarm input can be provisioned as critical, major, or minor.

Management Interfaces

The Cisco ASR 920 routers have the following management interfaces:

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Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

Management ENET Port

A single management copper ENET port supporting 10/100/1000Base-T operation is provided on the
front panel. It uses a standard RJ-45 jack.

Note This is not a data plane port.

Note This interface does not support 2.3.10 Synchronous Ethernet Clocking.

RS232 Console Port

The RS232 console port provides transmission (Tx), reception (Rx), and ground (Gnd).

Note The RS232 console port is enabled only through the Cisco-designed cable adapter USB type A cable to

RJ-45 adapter cable. To use this port, disable the flow control on the terminal.

Cisco ASR 920 Router Features

USB Console

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for
providing console access to ROMMON, Cisco IOS-XE and diagnostics. While it uses the Type-A
connector, it operates as a USB peripheral only for connection to an external host computer. This
interface requires the use of a Type-A to Type-A connector instead of a standard USB cable.

Note Use of the USB console is mutually exclusive of the RS232 console port. This interface requires the use

of a Type-A to Type-A USB cable.

USB Mass Storage

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for
inserting external USB mass storage devices, such as standard USB flash drives. This interface is used
to load images, load or store configurations, write logs, and so on. It supports operation up to 12Mbps.

Maximum memory supported in ROMmon is 8GB and in Cisco IOS is 16GB.

Zero Touch Provisioning (ZTP) Button

The ZTP button on the front panel initiates the ZTP process on a short press of less than eight seconds.
Pressing the ZTP button for more than eight seconds causes a board reset.

For more information on ZTP, see Power and STAT LED section.

RS232 Auxiliary Console Port

The RS232 Aux console port provides transmission (Tx), reception (Rx), and ground (Gnd).

Note The RS232 Aux console port is enabled only through the Cisco-designed cable adapter from USB type

A cable to RJ-45 adapter cable.

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Cisco ASR 920 Router Features

Note This is a debug-only port. it is recommended that this port be used by field service engineers only.

Power Supply and Fans

The Cisco ASR 920 routers support either AC or DC power supplies in a 1+1 redundant configuration.

Note The power supply units are built-in and are not modular.

Table 1-2 Power Supply Specification

Specification AC DC

Voltage 100 V – 240 V 24 V – 60 V

Current 2A through a standard C16 type

Input Power 115 W

Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

receptacle

(ASR-920-12CZ-A/ASR-920-4SZ-A)

6A through a three-position terminal block

105 W
(ASR-920-12CZ-D/ASR-920-4SZ-D)

Note This product requires surge protection as part of the building installation. To comply with the Telcordia

Note For DC systems, if a surge of more than 500 V is expected, add an appropriate external surge protective

Caution In case of power supply or fan failure, it is highly recommended to let a Cisco technician replace the

LED Indicators

PWR and STAT LEDs

GR-1089 NEBS standard for electromagnetic compatibility and safety, an external surge protective
device (SPD) is required at the AC power service equipment.

device.

The Cisco ASR 920 routers have fixed fans are part of the system. The system is designed to operate at
its maximum operating temperature of 70º C and at 65º C in case of failure of a single fan, for a maximum
of four hours. The fan is not removable and in case of a failure, the system must be replaced.

router.

This section describes the different types of LEDs and their behavior.

The PWR and STAT LEDs are available on the front panel. These LEDs provide power on the board
(PWR) and overall router health (STAT) status. During power up state, these LEDs provide booting
status and report errors.

1-8

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Cisco ASR 920 Router Features

Note The digital code signing functionality validates the integrity and authenticity of the ROMMON image

before booting it.

Table 1-3 PWR and STAT LED Indications

PWR LED State STAT LED state Indication Comment

Amber Off Power in the system is all right and FPGA

configuration is taking place.

Amber Red FPGA Image Validation Error. System is in unresponsive

Flashing Amber and
Green alternatively

Flashing Amber and
Green alternatively

Amber Upgrade FPGA image error, continuing with

Golden FPGA image.

Off FPGA configuration successful and Digital

code signing successfully validated FPGA
image. Digital code signing passed the
control to Microloader to boot ROMMON.

Flashing Amber and
Green alternatively

Red Digital code signing reported failure in

ROMMON image validation.

Flashing Amber Flashing Amber ZTP process has begun.

Note A short press of the ZTP button

triggers the provisioning. A longer
press of more than eight seconds,
resets the board.

Green Off IOS-XE image is booting.

Green Green Successfully booted and system is operating

normally.

Green Amber A minor alarm or synchronization is in

Holdover or free-running mode

Green Red A major or critical alarm (high temperature

reported for any sensor) or multiple fan
failure.

Permanent Amber/Off
indicates FPGA configuration
failure.

state.

—

—

—

Both LEDs turn Green once
provisioning is complete.

—

—

—

CPU Management Port LEDs

The LED for the 10/100/1000 Management port is integrated on the connector itself. There are two LEDs
in the connector—the LED on the left indicates the Link/Activity status and the LED on the right
indicates the duplex status of the link.

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Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

Cisco ASR 920 Router Features

Table 1-4 CPU Management Port LED Indication

LED LED State Indication

Left Green Link up in 1000 Mbps

Blinking Green Activity in 1000 Mbps

Orange Link up in 100 Mbps

Blinking Orange Activity in 100 Mbps

Off Link down

Right Green Link up in full duplex

Off Link up in half duplex

SFP LEDs

Each SFP port has an LED indicator. The LED is configured such that the up arrow indicates the port on
the upside and the down arrow indicates the port on the downside.

Table 1-5 SFP Port LED Indication

LED LED State Indication

Labeled same as the
SFP port number

Green Link up in 1000Base-X/100Base-FX

Blinking Green Activity in 1000 Base-X/100Base-FX

Yellow Fault/Error

Off Link down

SFP+ LEDs

Each SFP+ port has an LED indicator.

Table 1-6 SFP+ Port LED Indication

LED LED State Indication

Labeled same as the
SFP port number

Green Link up in 10G/1G

Blinking Green Activity in 10G/1G

Yellow Fault/Error

Off Link down

RJ-45 LEDs

1-10

Each RJ-45 port has two LED indicators. Left LED indicates the Link status; right LED indicates the
status of the duplex LED.

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Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

Table 1-7 RJ-45 LED Indication

LED LED State Indication

Left Green Link up in 10/100/1000Base-T

Blinking Green Activity in 10/100/1000Base-T

Yellow Fault/Error

Off Link down

Right Green Link up in full duplex

Off Link up in half duplex

Power Supply Unit LEDs

Each power supply unit has a corresponding LED on the front panel.

Table 1-8 PSU LED Indication

LED LED State Indication

OK Green Power Supply is working and 12V output is alright.

Red 12V output failure (Either input not present or fault

in the power supply unit).

Cisco ASR 920 Router Features

System–Interface LED Behavior

Table 1-9 1G Copper and 1G SFP LED Indication

Event

ROMMON Off/Off Off

IOS Shut Off/Off Off

IOS No shut (cable disconnect) Yellow/Off Yellow

IOS No shut (cable connect)
(media-type RJ-45)

IOS No shut (cable connect)
(media-type SFP)

IOS No shut (cable connect)
(media-type auto)

Table 1-10 Dual Rate and Management Port LED Indication

Event Dual Rate (1G/10G) Port LEDs

ROMMON Off Green/Off

IOS Shut Off Off/Off

1G Copper Port LEDs
(Link/Duplex) 1G SFP Port LEDs

Green/Green Off

Off/Off Green

Off/Off Green

Management Port LEDs
(Link/Duplex)

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Cisco ASR 920 Router Features

Table 1-10 Dual Rate and Management Port LED Indication

Event Dual Rate (1G/10G) Port LEDs

IOS No shut (cable disconnect) Orange Orange/Off

IOS No shut (cable connect) Green Green/Green in 1G mode

Online Insertion and Removal

The Cisco ASR 920 router supports the following OIR operations:

• When an SFP is removed, there is no effect on traffic flowing on other ports.

• When an SFP is installed, the system initializes that port for operation based upon the current

configuration. If the inserted SFP is incompatible with the current configuration for that port, the
port does not become operational until the configuration is updated.

• Both power supplies are installed and active and the load may be shared between them or a single

PSU could support the whole load. When a power supply is not working or the input cable is
removed, the remaining power supply takes the entire load without disruption. If the power supply
needs repair, the whole system must be replaced.

Chapter 1 Cisco ASR 920 Series Aggregation Services Router Overview

Management Port LEDs
(Link/Duplex)

Orange/Green in 100M mode

Licensing the Cisco ASR 920 Router

The Cisco ASR 920 Series Routers support the following types of licenses:

• Port Licensing—Port Upgrade license is available as a "Pay as you Grow" model.

–

1G upgrade license

–

10G upgrade license

• Bulk licensing—Bulk port licensing allows you to enable all the ports with a single license.

• Timing license (1588)—Timing license is required if the router is used as a master clock.

• Advanced Metro IP Access

• Metro IP Access

• Metro Access (default)

The following methods are used to activate the above licenses:

• Cisco Software Licensing—The Cisco Software License Activation feature is a set of processes and

components to activate Cisco software feature sets by obtaining and validating fee-based Cisco
software licenses.

Note Licenses generated by the Cisco Software Licensing are tied to the UDI of the chassis and a

corresponding watchtower device certificate (WDC) is stored in the system.

1-12

• Cisco Smart Licensing—Smart Licensing is usage-based licensing where devices register with the

Cisco Secure server.

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Preparing for Installation

This chapter describe how to prepare for the installation of the
Cisco ASR 920 Series Aggregation Services Router at your site, and contains the following sections:

• Safety Guidelines, page 2-1

• Site Planning, page 2-9

• Receiving the Cisco ASR 920 Series Router, page 2-20

Safety Guidelines

Before you begin the installation of the Cisco ASR 920 Series Router, review the safety guidelines in
this chapter to avoid injuring yourself or damaging the equipment.

In addition, before replacing, configuring, or maintaining the
Cisco ASR 920 Series Aggregation Services Router, review the safety warnings listed in the Regulatory

Compliance and Safety Information for the Cisco ASR 920 Series Aggregation Services Router

document.

CHA P T ER

2

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The following sections describe the safety guidelines for the Cisco ASR 920 Series Router:

• “Standard Warning Statements” section on page 2

• “Safety Guidelines for Personal Safety and Equipment Protection” section on page 3

• “Safety Precautions for Module Installation and Removal” section on page 3

• “Safety with Electricity” section on page 3

• “Power Supply Considerations” section on page 8

• “Preventing ESD Damage” section on page 8

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

2-1

Safety Guidelines

Standard Warning Statements

To see translations of the warnings that appear in this publication, see the Regulatory Compliance and
Safety Information for the Cisco ASR 920 Series Aggregation Services Router document.

Chapter 2 Preparing for Installation

Warning

Warning

Warning

Warning

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:

this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom
of the rack. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit
in the rack.

This unit should be mounted at the bottom of the rack if it is the only unit in the rack. When mounting

Statement 1006

This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.

Statement 1017

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 158°F (70°C).

The chassis should be mounted on a rack that is permanently affixed to the building.

Statement 1047

Statement 1049

2-2

Warning

IMPORTANT SAFETY INSTRUCTIONS: This warning symbol means danger. You are in a situation that
could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with
electrical circuitry and be familiar with standard practices for preventing accidents. Use the
statement number provided at the end of each warning to locate its translation in the translated safety

Warning

warnings that accompanied this device.

This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer

Statement 1071

should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a

Warning

residential-use type.

This is a class A product. In a domestic environment this product may cause radio interference in

Statement 294

which case the user may be required to take adequate measures.

Warning

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

This equipment is in compliance with the essential requirements and other relevant provisions of
Directive 1999/5/EC.

Statement 287

Statement 340

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Chapter 2 Preparing for Installation

Safety Guidelines for Personal Safety and Equipment Protection

The following guidelines help ensure your safety and protect the equipment. This list does not include
all the potentially hazardous situations. Therefore, you should be on alert.

• Before moving the system, always disconnect all the power cords and interface cables.

• Never assume that power is disconnected from a circuit; always check.

• Before and after installation, keep the chassis area clear and dust free.

• Keep tools and assembly components away from walk areas where you or others could trip over

them.

• Do not work alone if potentially hazardous conditions exist.

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

• Do not wear loose clothing that may get caught in the chassis.

• When working under conditions that may be hazardous to your eyes, wear safety glasses.

Safety Precautions for Module Installation and Removal

Safety Guidelines

Be sure to observe the following safety precautions when you work on the router.

To see the translations of the warnings that appear in this publication, see the Regulatory Compliance
and Safety Information for the Cisco ASR 920 Series Aggregation Services Router document.

Warning

Warning

Warning

Warning

Class 1 laser product.

Do not stare into the beam or view it directly with optical instruments.

Invisible laser radiation present.

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.

Safety with Electricity

Warning

Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.

Statement 1008

Statement 1011

Statement 1016

Statement 1051

Statement 12

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Warning

Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Statement 43

2-3

Safety Guidelines

Chapter 2 Preparing for Installation

Warning

Warning

Warning

Warning

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Before performing any of the following procedures, ensure that power is removed from the DC circuit.

Statement 1003

Read the installation instructions before connecting the system to the power source.

Statement 1004

This product relies on the building’s installation for short-circuit (overcurrent) protection. For a DC
installation, ensure that the branch circuit breaker is rated a maximum 15A for DC systems. For AC
systems, 15A for voltages greater than 200Vac; 20A for voltages below 127Vac.

Statement 1005

This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.

Statement 1017

2-4

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Safety Guidelines

Warning

Warning

Warning

Warning

Warning

When you connect or disconnect the power and relay connector with power applied, an electrical arc
can occur. This could cause an explosion in hazardous area installations. Be sure that power is
removed from the switch and alarm circuit. Be sure that power cannot be accidentally turned on or
verify that the area is nonhazardous before proceeding. Failure to securely tighten the power and
relay connector captive screws can result in an electrical arc if the connector is accidentally
removed.

Take care when connecting units to the supply circuit so that wiring is not overloaded.

Statement 1058

Statement 1018

The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device.

Statement 1019

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some
LAN and WAN ports both use RJ45 connectors. Use caution when connecting cables.

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Statement 1021

Statement

1022

Warning

Warning

Warning

Warning

Warning

Warning

To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord.

Statement 1023

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.

Use copper conductors only.

Statement 1025

Statement 1024

This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.

Statement 1028

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
handles on modules (such as power supplies, fans, or cards); these types of handles are not designed
to support the weight of the unit.

Statement 1032

Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV)
requirements in IEC 60950 based safety standards.

Statement 1033

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2-5

Safety Guidelines

Chapter 2 Preparing for Installation

Warning

Warning

Warning

Warning

Warning

Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry
tub, in a wet basement, or near a swimming pool.

Statement 1035

Before opening the unit, disconnect the telephone-network cables to avoid contact with
telephone-network voltages.

Statement 1041

This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260.
Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The
telecommunications lines must be disconnected 1) before unplugging the main power connector or 2)
while the housing is open, or both.

Statement 1043

This product requires short-circuit (overturned) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.

Statement 1045

When installing or replacing the unit, the ground connection must always be made first and
disconnected last.

Statement 1046

Warning

Warning

Warning

Warning

Warning

Failure to securely tighten the power and relay connector captive screws can result in an electrical
arc if the connector is accidentally removed.

Statement 1058

This equipment is intended to be grounded. Ensure that the host is connected to earth ground during
normal use.

Statement 39

If you connect or disconnect the console cable with power applied to the switch or any device on the
network, an electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous before proceeding. To verify
switch operation, perform POST on the switch in a nonhazardous location before installation.

Statement 1065

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

Hazardous voltage or energy may be present on DC power terminals. Always replace cover when
terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in
place.

Statement 1075

When working on equipment powered by electricity, follow these guidelines:

• Locate the room’s emergency power-off switch. If an electrical accident occurs, you will be able to

quickly turn off the power.

2-6

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Chapter 2 Preparing for Installation

• Before starting work on the system, turn off the DC main circuit breaker and disconnect the power

terminal block cable.

• Before doing the following, disconnect all power:

–

–

–

• Never install equipment that appears damaged.

• Carefully examine your work area for possible hazards, such as moist floors, ungrounded power

extension cables, and missing safety grounds.

• Never assume that power is disconnected from a circuit; always check.

• Never perform any action that creates a potential hazard to people or makes the equipment unsafe.

• If an electrical accident occurs, proceed as follows:

–

–

–

–

Safety Guidelines

Working on or near power supplies

Installing or removing a router chassis or network processor module

Performing most hardware upgrades

Use caution, and do not become a victim yourself.

Turn off power to the router.

If possible, send another person to get medical aid. Otherwise, determine the condition of the
victim, and then call for help.

Determine whether the person needs rescue breathing or external cardiac compressions; then
take appropriate action.

In addition, use the following guidelines when working with any equipment that is disconnected from a
power source, but still connected to telephone wiring or network cabling:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is specifically designed for it.

• Never touch uninsulated telephone wires or terminals unless the telephone line is disconnected at

the network interface.

• When installing or modifying telephone lines, use caution.

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Safety Guidelines

Power Supply Considerations

Check the power at your site to ensure that you are receiving clean power (free of spikes and noise).
Install a power conditioner, if necessary.

Preventing ESD Damage

Chapter 2 Preparing for Installation

Warning

This equipment needs to be grounded. Use a green and yellow 6 AWG ground wire to connect the host
to earth ground during normal use.

Statement 383

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD may occur
when electronic printed circuit cards are improperly handled and can cause complete or intermittent
failures. When removing and replacing modules, always follow ESD prevention procedures:

• Ensure that the router chassis is electrically connected to earth ground.

• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. To channel unwanted

ESD voltages safely to ground, connect the clip to an unpainted surface of the chassis frame. To
guard against ESD damage and shocks, the wrist strap and cord must operate effectively.

• If no wrist strap is available, ground yourself by touching a metal part of the chassis.

• When installing a component, use any available ejector levers or captive installation screws to

properly seat the bus connectors in the backplane or midplane. These devices prevent accidental
removal, provide proper grounding for the system, and help to ensure that bus connectors are
properly seated.

• When removing a component, use available ejector levers or captive installation screws, if any, to

release the bus connectors from the backplane or midplane.

• Handle components by their handles or edges only; do not touch the printed circuit boards or

connectors.

• Place a removed component board side up on an antistatic surface or in a static-shielding container.

If you plan to return the component to the factory, immediately place it in a static-shielding
container.

• Avoid contact between the printed circuit boards and clothing. The wrist strap only protects

components from ESD voltages on the body; ESD voltages on clothing can still cause damage.

2-8

• Never attempt to remove the printed circuit board from the metal carrier.

Note For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. It

should be between 1 and 10 Mohm.

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Chapter 2 Preparing for Installation

Site Planning

The following sections describe how to plan for the installation of the Cisco ASR 920 Series Router:

• “General Precautions” section on page 9

• “Site Planning Checklist” section on page 9

• “Site Selection Guidelines” section on page 10

• “Air Flow Guidelines” section on page 11

• “Floor Loading Considerations” section on page 14

• “Site Power Guidelines” section on page 14

• “Site Cabling Guidelines” section on page 15

• “Rack-Mounting Guidelines” section on page 16

• “Installation Checklist” section on page 19

• “Creating a Site Log” section on page 20

Site Planning

General Precautions

Observe the following general precautions when using and working with your
Cisco ASR 920 Series Router system:

• Keep your system components away from radiators and heat sources and do not block cooling vents.

• Do not spill food or liquids on your system components and never operate the product in a wet

environment.

• Do not push any objects into the openings of your system components. Doing so can cause fire or

electric shock by shorting out interior components.

• Position system cables and power supply cable carefully. Route system cables and the power supply

cable and plug so that they are not stepped on or tripped over. Be sure that nothing else rests on your
system component cables or power cable.

• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site

modifications. Always follow your local and national wiring rules.

• If you turn off your system, wait at least 30 seconds before turning it on again to avoid damage of

system components.

Site Planning Checklist

Use the following checklist to perform and account for all the site planning tasks described in this
chapter:

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• The site meets the environmental requirements.

• The site’s air conditioning system can compensate for the heat dissipation of the

Cisco ASR 920 Series Router.

• The floor space that the Cisco ASR 920 Series Router occupies can support the weight of the

system.

• Electrical service to the site complies with the requirements.

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

2-9

Site Planning

• The electrical circuit servicing the Cisco ASR 920 Series Router complies with the requirements.

• Consideration has been given to the console port wiring and limitations of the cabling involved,

according to TIA/EIA-232F.

• The Cisco ASR 920 Series Router Ethernet cabling distances are within the prescribed limitations.

• The equipment rack in which you plan to install the Cisco ASR 920 Series Router complies with

prescribed requirements.

• When selecting the location of the rack, careful consideration must be given to safety, ease of

maintenance, and proper airflow.

Site Selection Guidelines

The Cisco ASR 920 Series Router requires specific environmental operating conditions. Temperature,
humidity, altitude, and vibration can affect the performance and reliability of the router. The following
sections provide specific information to help you plan for the proper operating environment.

The Cisco ASR 920 Series Router is designed to meet the industry EMC, safety, and environmental
standards described in the Regulatory Compliance and Safety Information for the
CiscoASR920SeriesAggregationServicesRouter document.

Chapter 2 Preparing for Installation

Environmental Requirements

Environmental monitoring of the Cisco ASR 920 Series Router protects the system and components
from damage caused by excessive voltage and temperature conditions. To ensure normal operation and
avoid unnecessary maintenance, plan and prepare your site configuration before installation. After
installation, make sure that the site maintains the environmental characteristics described in Tabl e 1- 1 .

For an outside plant installation (cell site cabinet, hut etc.), it is required that the
Cisco ASR 920 Series Router be protected against airborne contaminants, dust, moisture, insects, pests,
corrosive gases, polluted air or other reactive elements present in the outside air. To achieve this level of
protection, we recommend that the unit be installed in a fully sealed enclosure or cabinet. Examples of
such cabinets include IP65 cabinets with heat exchanger complying with Telecordia GR487.
Temperature must be maintained within –40º C to 70º C.

The equipment shall be placed inside a space protected from direct outside weather and environmental
stresses by an enclosure, and where the operating climate, as defined by Class 2 of GR-3108-CORE, is
between

• -40°C (-40°F) and 70°C (158°F)

• 5 and 85% RH.

Physical Characteristics

Be familiar with the physical characteristics of the Cisco ASR 920 Series Router to assist you in placing
the system in the proper location. For more information, see Tab le 1-1.

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Air Flow Guidelines

Cool air is circulated through the Cisco ASR 920 Series Router by fans located along the back side of
the router.

The internal fans maintain acceptable operating temperatures for the internal components by drawing in
cool air through the vents, and circulating the air through the chassis.

The direction of air flow is from front-to-back.

Figure 2-1 Air Flow in the Cisco ASR 920 Series Routers

Site Planning

To ensure adequate air flow through the equipment rack, it is recommended that you maintain a
minimum clearance distance as mentioned below, at all times.

• front clearance—12.7 cm

• rear clearance—10 cm

391663

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2-11

Site Planning

12.7cm

(127mm)

Airflow

10cm

(100mm)

Airflow

391852

Front

Passive System

Chapter 2 Preparing for Installation

Rear

10cm

(100mm)

Airflow

24.4cm

(244mm)

12.7cm

(127mm)

Front

Airflow

391850

Note the following points:

• When installing Cisco ASR 920 Series Router in a back-to-back position with another device,

ensure that there is a minimum of 10 cm air flow clearance between the two devices.
Also ensure that the device behind the Cisco ASR 920 Series Router is not installed in a way that t
it blows air into the Cisco ASR 920 Series Router.

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Chapter 2 Preparing for Installation

12.7cm

(127mm)

Airflow

10cm

(100mm)

Airflow

Airflow

Airflow

12.7cm

(127mm)

Airflow

391851

Front Front

1 RU

• If airflow through the equipment rack and the routers that occupy it is blocked or restricted, or if the

ambient air being drawn into the rack is too warm, an overtemperature condition may occur within
the rack and the routers that occupy it.

• The site should also be as dust-free as possible. Dust tends to clog the router fans, reducing the flow

of cooling air through the equipment rack and the routers that occupy it, thus increasing the risk of
an overtemperature condition.

• Enclosed racks must have adequate ventilation. Ensure that the rack is not congested because each

router generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air.
Heat that is generated by the equipment near the bottom of the rack can be drawn upward into the
intake ports of the equipment above.

• When mounting a chassis in an open rack, ensure that the rack frame does not block the exhaust fans.

Site Planning

• When rack-installed equipment fails, especially equipment in an enclosed rack, try operating the

equipment by itself, if possible. Power off all the other equipment in the rack (and in adjacent racks)
to give the router maximum cooling air and clean power.

• Avoid installing the Cisco ASR 920 Series Router in a location in which the chassis air intake vents

may draw in the exhaust air from adjacent equipment. Consider how the air flows through the router;
the airflow direction is front to back, with ambient air drawn in from the vents located on the sides
of the chassis.

Caution When mounting the router in any type of rack equipment, ensure that the inlet air to the router does not

exceed 70° C.

Air Flow Guidelines for ETSI Rack Installation

To install a Cisco ASR 920 Series Router in a 2-post or 4-post rack, the front and rear doors of the
cabinet must be removed. It is recommended that you maintain a minimum clearance distance as
mentioned below, at all times.

• front clearance—12.7 cm

• rear clearance—10 cm

If you are mounting the chassis in a 4-post enclosed cabinet, ensure that you have a minimum of 10 cm
of clearance on each side of the chassis.

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Site Planning

Floor Loading Considerations

Ensure that the floor under the rack supporting the Cisco ASR 920 Series Routers is capable of
supporting the combined weight of the rack and all the other installed equipment.

To assess the weight of a fully configured Cisco ASR 920 Series Router, see the Table 1-1.

For additional information about floor loading requirements, see the GR-63-CORE, Network Equipment
Building System (NEBS) Requirements: Physical Protection document.

Site Power Guidelines

The Cisco ASR 920 Series Router has specific power and electrical wiring requirements. Adhering to
these requirements ensures reliable operation of the system. Follow these precautions and
recommendations when planning your site power for the Cisco ASR 920 Series Router:

• The redundant power option provides a second, identical power supply to ensure that power to the

chassis continues uninterrupted if one power supply fails or input power on one line fails.

• Connect each of the two power supplies to a separate input power source. If you fail to do this, your

system might be susceptible to total power failure due to a fault in the external wiring or a tripped
circuit breaker.

• To prevent a loss of input power, be sure that the total maximum load on each circuit supplying the

power supplies is within the current ratings of the wiring and the breakers.

• Check the power at your site before installation, and periodically after installation to ensure that you

are receiving clean power. Install a power conditioner, if necessary.

Chapter 2 Preparing for Installation

• Provide proper grounding to avoid personal injury and damage to the equipment due to lightning

striking power lines or due to power surges. The chassis ground must be attached to a central office
or other interior ground system.

Caution This product requires short-circuit (overcurrent) protection to be provided as part of the building

installation. Install only in accordance with national and local wiring regulations.

Note The Cisco ASR 920 Series Router installation must comply with all the applicable codes, and is

approved for use with copper conductors only. The ground bond-fastening hardware should be of
compatible material and preclude loosening, deterioration, and electrochemical corrosion of hardware
and joined material. Attachment of the chassis ground to a central office or other interior ground system
must be made with a 6-AWG gauge wire copper ground conductor at a minimum.

For information on power specifications, see Table 1-2.

Electrical Circuit Requirements

Each Cisco ASR 920 Series Router requires a dedicated electrical circuit. If you equip the router with
dual-power feeds, provide a separate circuit for each power supply to avoid compromising the power
redundancy feature.

The Cisco ASR 920 Series Routers can be powered by a DC source or an AC source. Ensure that
equipment grounding is present and observe the power-strip ratings. Make sure that the total ampere
rating of all the products plugged into the power strip does not exceed 80% of the rating.

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Chapter 2 Preparing for Installation

Site Cabling Guidelines

This section contains guidelines for wiring and cabling at your site. When preparing your site for
network connections to the Cisco ASR 920 Series Router, consider the type of cable required for each
component, and the cable limitations. Consider the distance limitations for signaling, electromagnetic
interference (EMI), and connector compatibility. Possible cable types are fiber, thick or thin coaxial, foil
twisted-pair, or unshielded twisted-pair cabling.

Also consider any additional interface equipment you need, such as transceivers, hubs, switches,
modems, channel service units (CSU), or data service units (DSU).

Before you install the Cisco ASR 920 Series Router, have all the additional external equipment and
cables on hand. For information about ordering, contact a Cisco customer service representative.

The extent of your network and the distances between the network interface connections depend, in part,
on the following factors:

• Signal type

• Signal speed

• Transmission medium

Site Planning

The distance and rate limits referenced in the following sections are the IEEE-recommended maximum
speeds and distances for signaling purposes. Use this information as a guideline when planning your
network connections prior to installing the Cisco ASR 920 Series Router.

If wires exceed the recommended distances, or if wires pass between buildings, give special
consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by
lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors
to destroy electronic devices. If you have had problems of this sort in the past, you may want to consult
experts in electrical surge suppression and shielding.

Asynchronous Terminal Connections

The Cisco ASR 920 Series Router provides a console port to connect a terminal or computer for local
console access. The port has an RJ-45 connector and supports RS-232 asynchronous data with distance
recommendations specified in the IEEE RS-232 standard.

Interference Considerations

When wires are run for any significant distance, there is a risk that stray signals will be induced on the
wires as interference. If interference signals are strong, they may cause data errors or damage to the
equipment.

The following sections describe the sources of interference and how to minimize their effects on the
Cisco ASR 920 Series Router system.

Electromagnetic Interference

All the equipment powered by AC current can propagate electrical energy that can cause EMI and
possibly affect the operation of other equipment. The typical sources of EMI are equipment power cords
and power service cables from electric utility companies.

Strong EMI can destroy the signal drivers and receivers in the Cisco ASR 920 Series Router and even
create an electrical hazard by causing power surges through the power lines into installed equipment.
These problems are rare, but could be catastrophic.

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Site Planning

To resolve these problems, you need specialized knowledge and equipment that could consume
substantial time and money. However, you can ensure that you have a properly grounded and shielded
electrical environment, paying special attention to the need for electrical surge suppression.

For information about the electrode magnetic compliance standards supported on the
Cisco ASR 920 Series Router, see the Regulatory Compliance and Safety Information for the
CiscoASR920SeriesAggregationServicesRouter document.

Radio Frequency Interference

When electromagnetic fields act over a long distance, radio frequency interference (RFI) may be
propagated. Building wiring can often act as an antenna, receiving the RFI signals and creating more
EMI on the wiring.

If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the
plant wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a
high-quality twisted-pair cable with one ground conductor for each data signal.

Lightning and AC Power Fault Interference

If signal wires exceed the recommended cabling distances, or if signal wires pass between buildings, you
should consider the effect that a lightning strike in your vicinity might have on the
Cisco ASR 920 Series Router.

The electromagnetic pulse (EMP) generated by lightning or other high-energy phenomena can couple
enough energy into unshielded conductors to damage or destroy electronic equipment. If you have
previously experienced such problems, you should consult with RFI and EMI experts to ensure that you
have adequate electrical surge suppression and shielding of signal cables in your
Cisco ASR 920 Series Router operating environment.

Chapter 2 Preparing for Installation

Rack-Mounting Guidelines

The following sections provide guidelines for rack-mounting the Cisco ASR 920 Series Router:

• Precautions for Rack-Mounting, page 2-16

• Rack Selection Guidelines, page 2-17

• Equipment Rack Guidelines, page 2-17

Precautions for Rack-Mounting

The following rack-mount guidelines are provided to ensure your safety:

• Ensure that the rack is level and stable before extending a component from the rack.

• Ensure that proper airflow is provided to the components in the rack.

• Do not step on or stand on any component or system when servicing other systems or components

in a rack.

• When mounting the Cisco ASR 920 Series Router in a partially filled rack, load the rack from the

bottom to the top, with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing

the unit in the rack.

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Chapter 2 Preparing for Installation

Rack Selection Guidelines

The Cisco ASR 920 Series Router can be mounted in most two-post or four-post, 19-inch equipment
racks that comply with the Electronic Industries Association (EIA) standard for equipment racks
(EIA-310-D 19-inch). The rack must have at least two posts with mounting flanges to mount the chassis.

Caution When mounting a chassis in any type of rack equipment, ensure that the inlet air to the chassis does not

exceed 70° C.

The distance between the center lines of the mounting holes on the two mounting posts must be 18.31
inch ± 0.06 inch (46.50 cm ± 0.15 cm). The rack-mounting hardware included with the chassis is
suitable for most 19-inch equipment racks.

Consider installing the Cisco ASR 920 Series Router in a rack with the following features:

• NEBS-compliant, 19-inch wide (48.3-cm) rack.

• EIA or European Telecommunications Standards Institute (ETSI) hole patterns in the mounting

rails. The required mounting hardware is shipped with the Cisco ASR 920 Series Router. If the rack
that you plan to install the system in has metric-threaded rails, you must provide your own
metric-mounting hardware.

• Perforated top and open bottom for ventilation to prevent overheating.

Site Planning

• Leveling feet for stability.

Caution The Cisco ASR 920 Series Router is not recommended to be installed in an enclosed rack because the

chassis requires an unobstructed flow of cooling air to maintain acceptable operating temperatures for
its internal components. If you use an enclosed rack, ensure that the air flow requirements are maintained
as discussed in Air Flow Guidelines, page 2-11.

Equipment Rack Guidelines

The placement of a rack can affect personnel safety, system maintenance, and the system’s ability to
operate within the environmental characteristics. Choose a proper location for the
Cisco ASR 920 Series Router by following the guidelines described here.

Locating for Safety

If the Cisco ASR 920 Series Router is the heaviest or the only piece of equipment in the rack, consider
installing it at or near the bottom to ensure that the rack’s center of gravity is as low as possible.

For additional information about the proper placement of electronic equipment, consult the

GR-63-CORE, Network Equipment Building System (NEBS) Requirements: Physical Protection

document.

Locating for Easy Maintenance

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It is recommended that you maintain a minimum clearance distance as mentioned below, at all times.

• front clearance—12.7 cm

• rear clearance—10 cm

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Site Planning

This space ensures that you can remove the Cisco ASR 920 Series Router components and perform
routine maintenance and upgrades easily.

Avoid installing the Cisco ASR 920 Series Router in a congested rack and consider how routing of
cables from other pieces of equipment in the same rack could affect access to the router cards.

The front and rear of the chassis must remain unobstructed to ensure adequate airflow and prevent
overheating inside the chassis.

To avoid problems during installation and ongoing operations, follow these general precautions when
you plan equipment locations and connections:

• Use the show environment all command regularly to check the internal system status. The

• Keep the Cisco ASR 920 Series Router off the floor and out of areas that collect dust.

• Follow ESD-prevention procedures to avoid damage to equipment. Damage from static discharge

Locating for Proper Airflow

Chapter 2 Preparing for Installation

environmental monitor continually checks the interior chassis environment; it provides warnings
about high temperature and creates reports on other potentially dangerous occurrences. If warning
messages are displayed, take immediate action to identify the cause, and correct the problem.

can cause immediate or intermittent equipment failure.

Ensure that the Cisco ASR 920 Series Router location has enough airflow to keep the system operating
within the environmental characteristics and the air temperature is sufficient to compensate for the heat
dissipated by the system. For more information, see the “Air Flow Guidelines” section on page 11.

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Chapter 2 Preparing for Installation

Installation Checklist

To assist you with your installation and to provide a record of what was done by whom and when,
photocopy the Cisco ASR 920 Series Router Installation Checklist shown in Tab l e 2-1. Use this to
record the completion and verification of each procedure. After the checklist is completed, place it in
your Site Log along with the other records pertaining to your new Cisco router.

Table 2-1 Cisco ASR 920 Series Router Installation Checklist

Task

Date on which chassis received

Chassis and all accessories unpacked

Types and numbers of interfaces verified

Safety recommendations and guidelines reviewed

Installation Checklist copied

Site Log established and background information entered

Site power voltages verified

Site environmental specifications verified

Required passwords, IP addresses, device names, and so on, available

Required tools available

Network connection equipment available

Cable-management brackets installed (optional, but recommended)

AC power cables connected to AC sources and router

DC power cables connected to DC sources and router

Network interface cables and devices connected

System power turned on

System boot complete (STATUS LED is on)

Correct software configuration displayed after system banner appears

Site Planning

Verified
By Date

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Receiving the Cisco ASR 920 Series Router

Creating a Site Log

The Site Log provides a record of all the actions related to installing and maintaining the router. Keep it
in an accessible place near the chassis so that anyone who performs tasks has access to it.

Create the Site Log prior to the installation. (See “Site Log” for more information about the Site Log as
well as a sample Site Log that can be used to make copies.)

Receiving the Cisco ASR 920 Series Router

Each Cisco ASR 920 Series Router chassis is shipped in a container that is strapped to a pallet, as
illustrated in Figure 2-2.

Figure 2-2 Cisco ASR 920 Series Router Packaged for Shipping

Chapter 2 Preparing for Installation

1

3

2

3

391894

4

2-20

Label Description Label Description

1 Outside carton for accessories 3 Assembly packaging material

2 Router 4 Packing carton

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Chapter 2 Preparing for Installation

Chassis-Lifting Guidelines

The chassis is not intended to be moved frequently. Before you install the system, ensure that your site
is properly prepared so that you can avoid having to move the chassis later to accommodate power
sources and network connections.

Each time you lift the chassis or any heavy object, follow these guidelines:

• Ensure that your footing is solid, and balance the weight of the chassis between your feet.

• Lift the chassis slowly; never move suddenly or twist your body as you lift.

• Keep your back straight and lift with your legs, not your back. If you must bend down to lift the

chassis, bend at the knees, not at the waist, to reduce the strain on your back muscles.

• Do not remove installed components from the chassis.

• Always disconnect all external cables before lifting or moving the chassis.

Receiving the Cisco ASR 920 Series Router

Warning

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
handles on modules (such as power supplies, fans, or cards); these types of handles are not designed
to support the weight of the unit. Lift the unit only by using handles that are an integral part of the
chassis, or by grasping the chassis underneath its lower edge.

Tools and Equipment

You need the following tools and equipment to install and upgrade the router and its components:

• ESD-preventive cord and wrist strap

• Antistatic mat or antistatic foam

• Number 1 and Number 2 Phillips-head screwdrivers

• #12-24 pan-head screws to secure the router to the equipment rack

• Cables for connecting to the network ports (depending on the configuration)

Note For more information about cable specifications, see the Troubleshooting section.

• Ethernet hub, switch, or PC with a network interface card for connecting to the Ethernet ports

• Console terminal (an ASCII terminal or a PC running terminal emulation software) that is

configured for 9600 baud, 8 data bits, no parity, no flow control, and 1stop bit

• Console cable for connecting to the console port

Statement 163

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Warning

• Ratcheting torque screwdriver with a Phillips head that exerts up to 30-pound force per square inch

(in-lb) or 0.02-kilograms force per square millimeter (kgf/mm2) of pressure

• Crimping tool as specified by the ground lug manufacturer

• Wire-stripping tools for stripping both 6-AWG and 14-AWG wires

• Tape measure and level

Only trained and qualified personnel should be allowed to install or replace this equipment.

Statement 49

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Chapter 2 Preparing for Installation

Receiving the Cisco ASR 920 Series Router

Unpacking and Verifying the Shipped Contents

When you receive your chassis, perform the following steps:

Step 1 Inspect the box for any shipping damage. If there is obvious physical damage, contact your Cisco service

representative.

Step 2 Unpack the Cisco ASR 920 Series Router.

Step 3 Perform a visual inspection of the chassis.

Step 4 Use Tab l e 2- 2 to check the contents of the Cisco ASR 920 Series Router shipping container. Do not

discard the shipping container. You will need the container if you move or ship the
Cisco ASR 920 Series Router in the future.

Table 2-2 Cisco ASR 920 Series Router Default Shipping Container Contents

Component Description

Chassis Cisco ASR 920 Series Router chassis

Accessories kit Chassis rack-mount brackets (19-inch EIA) with eight screws

Two cable guides with two screws

One earth lug with two 10-32 screws.

USB Type-A to USB Type-A cable

ESD, wrist strap (disposable) One disposable wrist strap (optional)

Documentation Cisco ASR 920 Series Aggregation Services Router Pointer Card

Optional equipment Check the container for the following optional equipment:

• Power cord if an AC power supply was shipped. There are no cords for the DC

power supply units.

Note If you do not specify the type of power cable, US power cable for the AC

router variant is supplied.

2-22

Note Most Cisco documentation is available online. The Cisco ASR 920 Series Aggregation Services Router

Pointer C a rd that is shipped with your Cisco ASR 920 Series Router contains links and information

about the various documents that are available online.

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Installing the Cisco ASR 920 Series Router

This chapter describes how to install the Cisco ASR 920 Series Router and includes the following
sections:

• “Prerequisites” section on page 3-1

• “Installing the Router in a Rack” section on page 3-1

• “Installing the Chassis Ground Connection” section on page 3-21

• “Connecting a Cisco ASR 920 Series Router to the Network” section on page 3-25

Prerequisites

Before installing the Cisco ASR 920 Series Router, it is important to prepare for the installation by:

• Preparing the site (site planning) and reviewing the installation plans or method of procedures

• Unpacking and inspecting the Cisco ASR 920 Series Router. See “Receiving the

• Gathering the tools and test equipment required to properly install the

CHA P T ER

(MOP). See “Site Planning” section on page 2-9.

Cisco ASR 920 Series Router” section on page 2-20.

Cisco ASR 920 Series Router. See “Tools and Equipment” section on page 2-21.

38

For more instructions on how to prepare for the installation of the Cisco ASR 920 Series Router, see

Chapter 2, “Preparing for Installation.”

Installing the Router in a Rack

The following sections describe how to install the Cisco ASR 920 Series Router in a rack. The
procedures in this section apply to both horizontal and vertical mounting of the router in a rack:

• “Installing the Chassis Brackets” section on page 3-2

• “Installing the Router Chassis in the Rack” section on page 3-6

• “Attaching the Cable Guides” section on page 3-7

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Chapter 3 Installing the Cisco ASR 920 Series Router

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Installing the Router in a Rack

Installing the Chassis Brackets

The chassis is shipped with mounting brackets that can be installed on the front or rear of the chassis.
To install the brackets on the front of the chassis, perform these steps:

Step 1 Remove the rack-mount brackets from the accessory kit and position them beside the router chassis.

Figure 3-1 shows how to attach the brackets at the front, middle, and rear positions on the

Cisco ASR 920 Series Router for a 19-inch EIA rack.

Figure 3-1 Attaching Mounting Brackets for a 19-inch EIA Rack (Front, Middle, and Rear Positions)

3-2

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