Cisco ASR-920-12SZ-IM Hardware Installation Manual

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

First Published: 2016-07-04

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Tel: [phone]
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Text Part Number:

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Cisco Systems, Inc. All rights reserved.

CONTENTS

Preface 9

Document Revision History 9

Document Audience 9

Document Organization 9

Document Conventions 10

Obtaining Documentation and Submitting a Service Request 12

CHAPTER 1

Cisco ASR 920 Series Aggregation Services Router Overview 1

Cisco ASR 920 Router Features 1

GigabitEthernet Copper Ports 2

GE SFP Ports 2

SFP+ Ports 3

External Interfaces 8

Network Interfaces 8

Network Timing Interfaces 9

External Alarm Inputs 9

Management Interfaces 9

Management ENET Port 9

RS232 Console Port 9

USB Console 10

USB Mass Storage 10

Zero Touch Provisioning Button 10

RS232 Auxiliary Console Port 10

Power Supply and Fans 10

LED Indicators 11

PWR and STAT LEDs 11

CPU Management Port LEDs 13

SFP LEDs 13

SFP+ LEDs 13

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Contents

RJ-45 LEDs 14

Power Supply Unit LEDs 14

System–Interface LED Behavior 15

Online Insertion and Removal 16

Licensing 16

CHAPTER 2

Preparing for Installation 19

Safety Guidelines 20

Safety Warning Statements 20

Safety Guidelines for Personal Safety and Equipment Protection 20

Safety Precautions for Module Installation and Removal 21

Safety with Electricity 21

Power Supply Considerations 22

Preventing ESD Damage 22

Site Planning 23

General Precautions 23

Site Planning Checklist 23

Site Selection Guidelines 24

Environmental Requirements 24

Physical Characteristics 24

Air Flow Guidelines 24

Air Flow Guidelines for ETSI Rack Installation 26

Floor Loading Considerations 26

Site Power Guidelines 27

Electrical Circuit Requirements 27

Site Cabling Guidelines 27

Asynchronous Terminal Connections 28

Interference Considerations 28

Electromagnetic Interference 28

Radio Frequency Interference 29

Lightning and AC Power Fault Interference 29

Rack-Mounting Guidelines 29

Precautions for Rack-Mounting 29

Rack Selection Guidelines 30

Equipment Rack Guidelines 30

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Contents

Locating for Safety 30

Locating for Easy Maintenance 30

Locating for Proper Airflow 31

Installation Checklist 31

Creating a Site Log 32

Chassis-Lifting Guidelines 33

Tools and Equipment 33

Unpacking and Verifying the Shipped Contents 34

CHAPTER 3

Installing the Cisco ASR 920 Series Router 37

Prerequisites 38

Installing the Router in a Rack 38

Attaching Brackets to the Router 39

Attaching Brackets for 19-Inch Racks 40

Attaching Brackets for 23-Inch Racks 42

Attaching Brackets for ETSI Racks 44

Mounting the Router in a Rack 45

Installing the Router Chassis in the Rack 46

Attaching the Cable Guides 47

Wall Mounting the Router 49

Attaching the Brackets to the Router for Wall-Mounting 49

Mounting Router on the Wall 50

Installing and Removing SFP Modules 52

Installing SFP Modules 52

Removing SFP Modules 54

Connecting to the Copper Ports 55

Connecting to SFP Modules 56

Connecting to Fiber-Optic SFP Modules 56

Installing the Chassis Ground Connection 57

Installing and Removing the Fan Tray 60

Installing the Fan Tray 60

Removing the Fan Tray 62

Interface Module Installation 63

Installing an Interface Module 64

Removing an Interface Module 64

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Installing the Power Supply 65

Power Connection Guidelines 65

Guidelines for DC-Powered Systems 66

Guidelines for AC-Powered Systems 66

Preventing Power Loss 66

Installing the DC Power Supply Module 67

Activating a DC Power Supply Module 69

Installing the DC Power Cables 69

Removing the DC Power Supply Module 71

Installing the AC Power Supply Module 73

Installing the AC Power Cables 76

Activating an AC Power Supply Module 77

Removing the AC Power Supply Module 77

Powering On the Router 80

Connecting the Router to the Network 80

Connecting Console Cables 80

Connecting to the USB Serial Port Using Microsoft Windows 80

Connecting to the Console Port Using Mac OS X 81

Connecting to the Console Port Using Linux 82

Installing the Cisco USB Device Driver 82

Uninstalling the Cisco USB Driver 84

Connecting to the EIA Console Port 85

Connecting a Management Ethernet Cable 87

Installing and Removing SFP and SFP+ Modules 87

Connecting a USB Flash Device 87

Removing a USB Flash Device 88

Connecting Timing Cables 88

Connecting Cables to a GPS Interface 88

Connecting a Cable to the Input 10-Mhz or 1-PPS Interface 89

Connecting a Cable to the Output 10-Mhz or 1-PPS Interface 89

Connecting a Cable to the ToD Interface 89

Connecting a Cable to the GNSS Antenna Interface 90

Connecting Ethernet Cables 91

Connecting Cables to SFP Modules 91

Connector and Cable Specifications 91

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Contents

CHAPTER 4

CHAPTER 5

Initial Configuration 93

Checking Conditions Prior to System Startup 93

Powering Up the Router 94

Verifying the Front Panel LEDs 94

Verifying the Hardware Configuration 94

Checking Hardware and Software Compatibility 94

Configuring the Router at Startup 95

Accessing the CLI Using the Console 95

Configuring Global Parameters 96

Checking the Running Configuration Settings 97

Saving the Running Configuration to NVRAM 97

Safely Powering Off the Router 97

Troubleshooting 99

Pinouts 99

GPS Port Pinouts 99

CHAPTER 6

Time-of-Day Port Pinouts 100

Alarm Port Pinouts 100

Management GigabitEthernet Port Pinouts 101

USB Console Port Pinouts 101

USB Flash or MEM Port Pinouts 102

Optical Fiber Specifications 102

Alarm Conditions 102

LED Summary 103

Power Supply LEDs 103

Fan Tray LEDs 104

Site Log 105

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viii

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

Preface

The preface describes the revision history, audience, organization, and conventions of the Cisco ASR 920
Series Aggregation Services Routers. 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-920-12SZ-IM— Four 10G SFP+ ports, Four 1G SFP ports, Eight 1G Copper/SFP Combo ports

and Two 1G/10G Dual Rate ports, with redundant AC or DC power supplies

• ASR-920-12SZ-IM-CC—Has the same specifications as the above variant. However, this chassis is

coated with an acrylic-based material to help improve the reliability against air-borne contamination.

Document Revision History

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

Change SummaryDateRelease

First ReleaseMay 29, 2015Cisco IOS XE Release 3.16.S

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.

Document Organization

This guide includes the following sections:

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

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Document Conventions

Preface

DescriptionTitle

Cisco ASR 920 Series Aggregation Services Router
Overview, on page 1

Preparing for Installation , on page 19

Installing the Cisco ASR 920 Series Router, on page
37

Site Log, on page 105

Document Conventions

This document uses the following conventions:

bold font

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

Describes the installation of the Cisco ASR 920 Series
Router at your site.

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

Describes basic router configuration.Initial Configuration, on page 93

Describes troubleshooting information.Troubleshooting, on page 99

Provides a record of actions related to installing and
maintaining the router.

IndicationConvention

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

italic font

{x | y | z }

[ x | y | z ]

string

courier font

< >

Document titles, new or emphasized terms, and
arguments for which you supply values are in italic
font.

Elements in square brackets are optional.[ ]

Required alternative keywords are grouped in braces
and separated by vertical bars.

Optional alternative keywords are grouped in brackets
and separated by vertical bars.

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

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

Nonprinting characters such as passwords are in angle
brackets.

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Preface

Document Conventions

IndicationConvention

Note

Tip

Caution

Timesaver

[ ]

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.

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

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.

Means reader be careful. In this situation, you might perform an action that could result in equipment
damage or loss of data.

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

Warning

Warning

Warning

Means reader be warned. In this situation, you might perform an action that could result in bodily injury.

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.

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Preface

Obtaining Documentation and Submitting a Service Request

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information,
see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco
technical documentation.

Subscribe to the 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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CHAPTER 1

Cisco ASR 920 Series Aggregation Services Router Overview

The Cisco ASR 920 Series Aggregation Services Router is a family of fixed configuration routers that
provides common network architecture to the Service Providers for macro and small cell networks.

This router acts as an access device for mobile backhaul services—macro Cell Site Router (CSR) and Small
Cell Router (SCR). As an access device, it provides capabilities like 1GE/10GE, MPLS, H-QoS, Services,
GPS clocking, PoE and fit within ETSI 300 mm depth cabinet. It can easily be integrated into the Unified
MPLS for Mobile Transport (UMMT) and Fixed Mobile Convergence (FMC) solution.

Cisco ASR 920 Router Features, page 1

•

GigabitEthernet Copper Ports, page 2

•

GE SFP Ports, page 2

•

SFP+ Ports, page 3

•

External Interfaces, page 8

•

Cisco ASR 920 Router Features

The router provides 1GE/10GE, MPLS, H-QoS, high availability hardware design, advanced Ethernet
Operations, Administration, and Maintenance (OAM), as well as advanced timing support, including satellite
timing (GNSS) based clocking, and PoE in one platform.

• ASR-920-12SZ-IM—This router has fixed Ethernet interfaces (8x1G copper + 4x1G SFP + 4x10G/1G

(dual rate)

• ASR-920-12SZ-IM-CC—Has the same specifications as the above variant. However, this chassis is

coated with an acrylic-based material to help improve the reliability against air-borne contamination.

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

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Cisco ASR 920 Series Aggregation Services Router Overview

GigabitEthernet Copper Ports

Type of 1 GE PortDual Rate 1G/10G Port1 GE PortASR 920 Sub-family

1

12ASR-920-12SZ-IM,

ASR-920-12SZ-IM-CC

1

Each port can operate at either 1G or 10G, and operates in a mutually exclusive way. You cannot insert both 1G and 10G together. If you insert IG IMs
(A900-IMA8T1Z, A900-IMA8S1Z, A900-IMA8T, A900-IMA8S), the dual rate port would support only 10G.

4

Te0/0/12 – Te 0/0/15

8 Cu ports Ge0/0/0 –
Ge0/0/7

4 SFP ports Ge0/0/8 –
Ge0/0/11

GigabitEthernet Copper Ports

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

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

•

GE SFP Ports

The GE SFP ports support the following features:

Smart SFPs are not supported on the router.Note

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.

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

•

Digital optical monitoring as specified by the SFP.

•

Any mix of SFPs is supported unless specifically noted.

•

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.

Copper based SFPs do not support synchronous ENET operations.Note

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Cisco ASR 920 Series Aggregation Services Router Overview

SFP+ Ports

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.

•

Frame size of 9216 bytes.

•

SFP+ Ports

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SFP+ Ports

Cisco ASR 920 Series Aggregation Services Router Overview

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

Figure 1: Front Panel of Cisco ASR-920-12SZ-IM Router —With DC Power Supply

Figure 2: Front Panel of Cisco ASR-920-12SZ-IM Router —With AC Power Supply

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Cisco ASR 920 Series Aggregation Services Router Overview

SFP+ Ports

1

Alarm port10Power Supply 0 (AC or

DC)

2

11Power Supply 1 (AC or

DC)

Eight Copper port (1G
PoE)

ToD port12Front Air-Inlet Area3

4

Management Port13GNSS RF IN (SMA

threaded connector)

5

USB Memory port14SMB Snap-in connector

(10MHZ)

6

USB Console port15SMB Snap-in connector

(1PPS)

16Four 1G/10G SFP+7

Zero Touch Provisioning
button

RS232 Console port17Interface Module8

RS232 Aux Console port18Four 1G SFP9

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SFP+ Ports

Cisco ASR 920 Series Aggregation Services Router Overview

Figure 3: Rear View of Cisco ASR-920-12SZ-IM Router

Air vents3Fan tray1

Grounding lug2

—

The following table describes the other features of Cisco ASR-920-12SZ-IM (AC and DC) Router.

Table 1: Cisco ASR-920-12SZ-IM Router Specifications

ASR-920-12SZ-IMSpecification

17.5 x 9.88 x 1.73 inchesDimensionWidth x Depth x Height

Weight

Total weight: 4.83 kg

Weight of PSU: 0.59 kg

Weight of Fan: 0.33 kg

One RURack Unit

Front to backAirflow

Front cable accessCable access

60 Gbps, 95 MppsSystem throughput

Power Supply

YesRedundant

YesAC

85V AC to 264V AC, nominal 100/240 VACVoltage Range

47 Hz to 63 Hz, nominal 50/60 HzFrequency Range

360 WMaximum Power

YesDC

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Cisco ASR 920 Series Aggregation Services Router Overview

SFP+ Ports

ASR-920-12SZ-IMSpecification

-18 VDC to -32 VDC or -40 VDC to -72 VDCVoltage Range

-24 VDC/-48 VDC/-60 VDCNominal Voltage Range

375 WMaximum Power

Operating Temperature

Alarms

Supported Interface Modules

Mounting option

Port Numbering

–40º C to 70º C

4 alarm dry contact inputs (normally open)

•

LED indicators for critical, major, and minor

•

alarms

For more information on these IM modules, see the

Cisco ASR 903 Aggregation Series Router Hardware
Installation Guide .

For more information on the supported IMs, see the

Cisco ASR920 Data sheet.

Front or rear rail 19 or 23 inches

•

ETSI 300 mm open cabinet

•

Wall mount

•

12x1G and 4x10G/1G portsPort Configuration

4x10G SFP+ – Port [12:15]

4x1G SFP – Port [8:11]

8x1G PoE RJ45/Cu ports [0:7]

Ports 12 to 15 are Dual Rate portsCombo Ports

Link/Activity/FaultCopper/1G/10G Port LEDs

Four temperature sensorsTemperature Sensors

External ports for 1PPS/TOD1PPS/ToD

Provides power over EthernetPoE

Connects to the external GPSGNSS

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External Interfaces

Cisco ASR 920 Series Aggregation Services Router Overview

Figure 4: Cisco ASR-920-12SZ-IM Router—Dimensions

External Interfaces

The external physical interfaces on the front panel of the router are given below:

Network Interfaces

The network interfaces are provided through fixed ports.

• GE SFP ports—supports 100/1000 modes

• GE Copper RJ-45 ports—supports 10/100/1000 operation. All eight copper RJ-45 ports support

PoE/PoE+/UPoE with overall power budget of 180 W.

PoE is not supported when the system is powered with 24 V DC.Note

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

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Cisco ASR 920 Series Aggregation Services Router Overview

Network Timing Interfaces

• 10Mhz input or output—Miniature coaxial connectors for 10Mhz timing (input or output). You can use

this interfaces with an external GPS device to send or receive clocking from the router

• 1PPS input or output and ToD input or output—This 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 configured through software.

• GNSS RF IN—This interface is used to connect the external GPS antenna to the in-built GPS module.

External Alarm Inputs

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

Network Timing Interfaces

• 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 following management interfaces are supported:

Management ENET Port

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

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.

Do not plug the USB-to-RJ45 adapter cable in the USB Memory port.Caution

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Power Supply and Fans

USB Console

Cisco ASR 920 Series Aggregation Services Router Overview

A single USB 2.0 Type-A receptacle on the front panel of the router provides 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 on the front panel of the router allows 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.

More than 8 GB is not supported in ROMMON mode,Note

Zero Touch Provisioning Button

The Zero Touch Provisioning (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.

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.

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

Power Supply and Fans

The router supports AC, D, or a combination of both power supplies in a 1+1 redundant configuration.

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Cisco ASR 920 Series Aggregation Services Router Overview

Table 2: Power Supply Specification

LED Indicators

DC (A920-PWR400-D)AC (A920-PWR400-A)Specification

Note

Note

LED Indicators

Voltage

Current

5A through a standard C16 type
receptacle

24 V – 60 V100 V – 240 V

20A through a two-position
terminal block

375 W360 WInput Power

This product requires surge protection as part of the building installation. To comply with the Telcordia
GR-1089 NEBS standard for electromagnetic compatibility and safety, an external surge protective device
(SPD) is required at the AC power service equipment.

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

The router has a single fan-tray with four fans. The system is designed to operate at its maximum operating
temperature of 70º C, in case of failure of a single fan operating temperature of 65º C. The fan tray is
field-replaceable.

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

PWR and STAT LEDs

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

Note

The digital code signing functionality validates the integrity and authenticity of the ROMMON image
before booting it.

Table 3: PWR and STAT LED Indications

CommentIndicationSTAT LED statePWR LED State

OffAmber

Power in the system is all
right and FPGA
configuration is taking

Permanent Amber/Off
indicates FPGA
configuration failure.

place.

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LED Indicators

Cisco ASR 920 Series Aggregation Services Router Overview

CommentIndicationSTAT LED statePWR LED State

Green alternatively

Green alternatively

Green alternatively

RedAmber

FPGA Image Validation
Error.

AmberFlashing Amber and

Upgrade FPGA image

System is in unresponsive
state.

—

error, continuing with
Golden FPGA image.

OffFlashing Amber and

FPGA configuration

—

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

RedFlashing Amber and

Digital code signing

—

reported failure in
ROMMON image
validation.

Flashing AmberFlashing Amber

ZTP process has begun.

Note

A short press of
the ZTP button

Both LEDs turn Green
once provisioning is
complete.

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

IOS-XE image is booting.OffGreen

GreenGreen

Successfully booted and

—

system is operating
normally.

AmberGreen

A minor alarm or

—

synchronization is in
Holdover or free-running
mode

RedGreen

A major or critical alarm

—

(high temperature
reported for any sensor)
or multiple fan failure.

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Cisco ASR 920 Series Aggregation Services Router Overview

CPU Management Port LEDs

The LED for the 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.

Table 4: CPU Management Port LED Indication

LED Indicators

IndicationLED StateLED

Link up in 1000 MbpsGreenLeft

Activity in 1000 MbpsBlinking Green

Link up in 100 MbpsAmber

Activity in 100 MbpsBlinking Amber

SFP LEDs

Each SFP port has an LED indicator.

Table 5: SFP Port LED Indication

number

GreenLabeled same as the SFP port

Blinking Green

Link downOff

Link up in full duplexGreenRight

Link up in half duplexOff

IndicationLED StateLED

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

Activity in 1000
Base-X/100Base-FX

Fault/Error/Link downAmber

Administratively downOff

SFP+ LEDs

Each SFP+ port has an LED indicator.

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LED Indicators

RJ-45 LEDs

Cisco ASR 920 Series Aggregation Services Router Overview

Table 6: SFP+ Port LED Indication

IndicationLED StateLED

Link up in 10G/1GGreenLabeled same as the SFP port

number

Activity in 10G/1GBlinking Green

Fault/Error/Link downAmber

Administratively downOff

There is only one LED on each RJ45 port on the fixed slot (slot 0/0) and this indicates only the link or speed
status. There is no LED to show the Duplex state. However, there are two LEDs for IM RJ45 ports and they
indicate the Link and Duplex state.

Table 7: RJ-45 LED Indication

Power Supply Unit LEDs

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

Table 8: PSU LED Indication

IndicationLED State

Link up in 10/100/1000Base-TGreen

Activity in 10/100/1000Base-TBlinking Green

Fault/Error/Link downAmber

Administratively downOff

Power Supply ConditionFAIL LEDPower LED

OffGreen

Power Supply ON; valid
input/output

Red 1Hz blinkingYellow 1Hz blinking

PSU Warning due to OCP, OTP,
UV, OV, OP, abnormal fan
operation

PSU continues to operate

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Cisco ASR 920 Series Aggregation Services Router Overview

LED Indicators

Power Supply ConditionFAIL LEDPower LED

System–Interface LED Behavior

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

OnOff

PSU failure due to OCP, OTP, UV,
OV, OP, abnormal fan operation.
No valid output.

OffGreen 1Hz blinking

Valid power present, shutdown by
system.

Input voltage lowOffYellow

No valid power input.OffOff

1G SFP Port LEDs1G Copper Port LEDs (Link)Event

OffOffROMMON

OffOffIOS Shut

AmberAmberIOS No shut (cable disconnect)

Table 10: Dual Rate Port LED Indication

Table 11: Management Port LED Indication

GreenGreenIOS No shut (Link Up)

Dual Rate (1G/10G) Port LEDsEvent

OffROMMON

OffIOS Shut

AmberIOS No shut (cable disconnect)

GreenIOS No shut (Link Up)

Management Port LEDs (Link/Duplex)Event

Green/OffROMMON

Off/OffIOS Shut

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Online Insertion and Removal

Cisco ASR 920 Series Aggregation Services Router Overview

Management Port LEDs (Link/Duplex)Event

Amber/OffIOS No shut (cable disconnect)

IOS No shut (cable connect)

Online Insertion and Removal

This 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.

When a fan tray is removed or replaced, there is no need to power down the router. However, when the

•

fan tray is removed from the router, the router shuts down automatically after some time, depending on
the ambient temperature. The time duration before the router shuts down is shown in the table below:

Green/Green in 1G mode

Amber/Green in 100M mode

Licensing

The router supports the following types of licenses:

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

6 ports 1GE upgrade license

◦

2 ports 10G upgrade license

◦

Bulk License to enable 12x1port 1GE and 4x10GE ports

◦

Advanced Metro IP Access

•

Metro IP Access

•

Metro Access (default)

•

Feature licensing

•

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.

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Cisco ASR 920 Series Aggregation Services Router Overview

Licensing

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.

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

Secure server.

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Licensing

Cisco ASR 920 Series Aggregation Services Router Overview

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

18

CHAPTER 2

Preparing for Installation

This chapter describe how to prepare for the installation of the router at your site.

Safety Guidelines, page 20

•

Safety Warning Statements, page 20

•

Safety Guidelines for Personal Safety and Equipment Protection, page 20

•

Safety Precautions for Module Installation and Removal, page 21

•

Safety with Electricity, page 21

•

Power Supply Considerations, page 22

•

Preventing ESD Damage, page 22

•

Site Planning, page 23

•

Air Flow Guidelines, page 24

•

Floor Loading Considerations, page 26

•

Site Power Guidelines, page 27

•

Electrical Circuit Requirements, page 27

•

Site Cabling Guidelines, page 27

•

Asynchronous Terminal Connections, page 28

•

Interference Considerations, page 28

•

Installation Checklist, page 31

•

Creating a Site Log, page 32

•

Chassis-Lifting Guidelines, page 33

•

Tools and Equipment, page 33

•

Unpacking and Verifying the Shipped Contents, page 34

•

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Safety Guidelines

Safety Guidelines

Before you begin the installation, review the safety guidelines in this chapter to avoid injuring yourself or
damaging the equipment.

In addition, before replacing, configuring, or maintaining the router, review the safety warnings listed in the
Regulatory Compliance and Safety Information document.

Safety Warning Statements

Preparing for Installation

Warning

Warning

Warning

Warning

Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.
Statement 1

This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028

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. Statement 1024

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. Statement 43

For other standard warning messages and their translations, see the Regulatory Compliance and Safety
Information for the Cisco ASR 920 Series Aggregation Services Router document.

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.

•

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Preparing for Installation

Safety Precautions for Module Installation and Removal

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

To see the safety precautions for module installation and removal, see the Regulatory Compliance and Safety
Information for the Cisco ASR 920 Series Aggregation Services Router document.

Safety with Electricity

To see the safety with electricity, see the Regulatory Compliance and Safety Information for the Cisco ASR
920 Series Aggregation Services Router document.

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.

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:

•

Working on or near power supplies

◦

Installing or removing a router chassis or network processor module

◦

Performing most hardware upgrades

◦

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:

•

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.

•

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Power Supply Considerations

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.

•

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

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.

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

•

Note

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

22

For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. It
should be between 1 and 10 Mohm.

Preparing for Installation

Site Planning

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

General Precautions

Observe the following general precautions when using and working with your router::

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.

Site Planning

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:

The site meets the environmental requirements.

•

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

The floor space that the router occupies can support the weight of the system.

•

Electrical service to the site complies with the requirements.

•

The electrical circuit servicing the 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 router's Ethernet cabling distances are within the prescribed limitations.

•

The equipment rack in which you plan to install the 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.

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Site Selection Guidelines

Site Selection Guidelines

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

Environmental Requirements

Environmental monitoring of the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M 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 Cisco ASR-920-12SZ-IM Router Specifications table.

For an outside plant installation (cell site cabinet, hut etc.), it is required that the 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

Preparing for Installation

-40°C (-40°F) and 70°C (158°F)

•

5 and 90% RH

•

Physical Characteristics

Be familiar with the physical characteristics of the router to assist you in placing the system in the proper
location. For more information, see Cisco ASR-920-12SZ-IM Router Specifications table.

Air Flow Guidelines

Cool air is circulated through the 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.

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Preparing for Installation

Air Flow Guidelines

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

Figure 5: Air Flow in the Cisco ASR 920 Series Routers

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—14 cm

Note the following points:

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Air Flow Guidelines for ETSI Rack Installation

When installing the routerouter 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.

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.

•

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.

Preparing for Installation

Avoid installing the 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.

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—14 cm

If you are mounting the chassis in a 4-post enclosed cabinet, ensure that you have a minimum of 14 cm of
clearance on each side of the chassis.

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 Cisco ASR-920-12SZ-IM
Router Specifications table.

For additional information about floor loading requirements, see the GR-63-CORE, Network Equipment

Building System (NEBS) Requirements: Physical Protection document.

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Preparing for Installation

Site Power Guidelines

The router have 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 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.

Site Power Guidelines

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

Note

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.

The 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 Power Supply Specification table.

Electrical Circuit Requirements

Each 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 ruters 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.

Site Cabling Guidelines

This section contains guidelines for wiring and cabling at your site. When preparing your site for network
connections to the router, consider the type of cable required for each component, and the cable limitations.

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

27

Asynchronous Terminal Connections

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 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

•

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 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.

Preparing for Installation

Asynchronous Terminal Connections

The 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 sections describe the sources of interference and how to minimize their effects on the router.

Electromagnetic Interference

ll 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 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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Preparing for Installation

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 Cisco ASR 920 Series Aggregation
Services Router 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.

Radio Frequency Interference

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 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.

Rack-Mounting Guidelines

The sections provide guidelines for rack-mounting.

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 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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Rack-Mounting Guidelines

Rack Selection Guidelines

The 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.

Preparing for Installation

Caution

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 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 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.

•

Leveling feet for stability.

•

The 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.

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 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

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

• front clearance—12.7 cm

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Preparing for Installation

Installation Checklist

• rear clearance—10 cm

This space ensures that you can remove the router components and perform routine maintenance and upgrades
easily.

Avoid installing the 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 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.

Keep the router off the floor and out of areas that collect dust.

•

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

•

cause immediate or intermittent equipment failure.

Locating for Proper Airflow

Ensure that the 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.

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 the table below. 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 12: Installation Checklist

Date on which chassis received

Chassis and all accessories
unpacked

Types and numbers of interfaces
verified

DateVerified ByTask

Safety recommendations and
guidelines reviewed

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Creating a Site Log

Preparing for Installation

DateVerified ByTask

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

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.

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32

Preparing for Installation

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.)

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.

•

Chassis-Lifting Guidelines

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

•

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. Statement 163

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

•

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Unpacking and Verifying the Shipped Contents

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 12-AWG wires

•

Tape measure and level

•

Only trained and qualified personnel should be allowed to install or replace this equipment. Statement 49Warning

Unpacking and Verifying the Shipped Contents

When you receive your chassis, perform the following steps:

SUMMARY STEPS

Preparing for Installation

DETAILED STEPS

Step 1
Step 2
Step 3
Step 4

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

Unpack the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router.

Perform a visual inspection of the chassis.

Use the table below to check the contents of the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router
shipping container. Do not discard the shipping container. You will need the container if you move or ship the Cisco
ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router in the future.

Table 13: Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router Default Shipping Container Contents

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

1.

representative.

Unpack the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router.

2.

Perform a visual inspection of the chassis.

3.

Use the table below to check the contents of the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,

4.

ASR-920-24TZ-M Router shipping container. Do not discard the shipping container. You will need the
container if you move or ship the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router
in the future.

DescriptionComponent

Chassis (PID: ASR-920-12SZ-IM)

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Cisco ASR 920 Series Router chassis

Fan tray (PID: ASR-920-FAN-TRAY). By default, the fan
tray is installed in the chassis.

Preparing for Installation

Unpacking and Verifying the Shipped Contents

DescriptionComponent

Accessories kit

Optional equipment

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 Male cable

PSU dummy cover (ASR920-PWR-BLANK)

IM dummy cover (ASR900-IMA-BLANK)

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

Cisco ASR 920 Series Router Pointer CardDocumentation

Check the container for the following optional equipment:

AC and DC power supplies

•

Note

The AC and DC power supplies are provided
as ordered.

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.

Note

Most Cisco documentation is available online. The Cisco ASR 920 Series Aggregation Services Router Pointer
Card 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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Unpacking and Verifying the Shipped Contents

Preparing for Installation

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CHAPTER 3

Installing the Cisco ASR 920 Series Router

This chapter describes how to install the router and includes the following sections:

Prerequisites, page 3-1

•

Installing the Router in a Rack, page 3-2

•

Wall Mounting the Router, page 3-13

•

Installing and Removing SFP Modules, page 3-16

•

Connecting to the Copper Ports, page 3-18

•

Installing the Chassis Ground Connection, page 3-20

•

Installing and Removing the Fan Tray, page 3-22

•

Interface Module Installation, page 3-24

•

Installing the Power Supply, page 3-25

•

Connecting the Router to the Network, page 3-35

•

Prerequisites, page 38

•

Installing the Router in a Rack, page 38

•

Mounting the Router in a Rack, page 45

•

Installing the Router Chassis in the Rack, page 46

•

Attaching the Cable Guides, page 47

•

Wall Mounting the Router, page 49

•

Installing and Removing SFP Modules, page 52

•

Connecting to the Copper Ports, page 55

•

Installing the Chassis Ground Connection, page 57

•

Installing and Removing the Fan Tray, page 60

•

Interface Module Installation, page 63

•

Installing the Power Supply, page 65

•

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Prerequisites

Connecting the Router to the Network, page 80

•

Prerequisites

Before installing the router, it is important to prepare for the installation by:

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

•

See Site Planning section.

Unpacking and inspecting the router. See Chassis-Lifting Guidelines section.

•

Gathering the tools and test equipment required to properly install the router. See Tools and Equipment

•

section.

For more instructions on how to prepare for the installation of the router, see Preparing for Installation section.

Installing the Router in a Rack

Installing the Cisco ASR 920 Series Router

Caution

Each Cisco ASR 920 Series Aggregation Services Router router includes rack-mounting brackets. Using the
rack-mounting brackets, you can mount the router in a 19-inch, 23-inch, or an ETSI rack that conforms to the
EIA-310-D specification.

Using the two rack-mounting brackets for mounting, you can recess the router in the equipment rack. This
arrangement provides extra space in front of the router for the cables and allows you to close the doors of
racks equipped with front-close doors.

To attach or replace the rack-mounting brackets, see the Attaching Brackets to the Router section.

The rack-mounting brackets are slotted to allow the router to be mounted in racks with EIA 1.25-inch (3.175-cm)
or WECO 1.0-inch (2.54-cm) hole spacing. When installed in the rack, the router requires one EIA 1.75-inch
(4.4-cm) vertical mounting space (or 1 rack unit [RU]) for mounting (see the Mounting the Router in a Rack
section).

Allow clearance on either side of the router for cooling air to be drawn in through the right side and
circulated through the chassis and out the three-fan exhaust ports mounted on the other side of chassis.

The sections describe how to install the router in a rack. The procedures in this section apply to both horizontal
and vertical mounting of the router in a rack:

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Installing the Cisco ASR 920 Series Router

Attaching Brackets to the Router

The bracket orientation and the brackets that you use depend on whether you are attaching the brackets for a
19-inch, 23-inch, or an ETSI rack. The following figure shows the types of mounting brackets.

Figure 6: Rack-Mounting Brackets

Attaching Brackets to the Router

Note

23-inch brackets219-inch brackets1

4ETSI-rack brackets3

For 19-inch racks, use part number 700-39959-01 (see Attaching Brackets for 19-Inch Racks section.

•

For 23-inch racks, use part number 700-40065-01 (see Attaching Brackets for 23-Inch Racks section).

•

For ETSI racks, use part number 700-40067-01 (see Attaching Brackets for ETSI Racks section).

•

—

The bracket mounting screws are pre-installed on the router. Depending on the bracket mounting position
of the chassis, you must remove the appropriate screws, fix the bracket, and install the screws again.

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Attaching Brackets to the Router

Attaching Brackets for 19-Inch Racks

The following figure shows how to attach brackets for 19-inch racks on the router.

Figure 7: Attaching Brackets for 19-Inch Racks

Installing the Cisco ASR 920 Series Router

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Installing the Cisco ASR 920 Series Router

Attaching Brackets to the Router

Front-mounting position2Phillips flat-head screws1

Rear-mounting position4Mid-mounting position3

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Attaching Brackets to the Router

Attaching Brackets for 23-Inch Racks

The following figure shows how to attach brackets for 23-inch racks on the router.

Figure 8: Attaching Brackets for 23-Inch Racks

Installing the Cisco ASR 920 Series Router

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Installing the Cisco ASR 920 Series Router

Attaching Brackets to the Router

Front-mounting position2Phillips flat-head screws1

Rear-mounting position4Mid-mounting position3

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Attaching Brackets to the Router

Attaching Brackets for ETSI Racks

The following figure shows how to attach brackets for ETSI racks on the router.

Figure 9: Attaching Brackets for ETSI Racks

Installing the Cisco ASR 920 Series Router

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Installing the Cisco ASR 920 Series Router

Mounting the Router in a Rack

Perform the steps given below to mount the router into the equipment rack.

Mounting the Router in a Rack

Front-mounting position2Phillips flat-head screws1

Rear-mounting position4Mid-mounting position3

Note

SUMMARY STEPS

To secure the router to the equipment rack, you must use the two mounting screws (provided) for each
side or follow your local practices for installing the router into your equipment rack. Ensure that the
rack-mount brackets are securely fastened. For more information, see the Attaching Brackets to the Router
section.

Locate the equipment rack position where you plan to install the router.

1.

Verify that there are no obstructions and ensure that the equipment rack is stabilized.

2.

Determine whether you are mounting the router on a 19-inch, 23-inch, or an ETSI rack. Rack-Mounting

3.

Brackets figure shows the types of mounting brackets.

Determine the mounting position (Front-, Mid-, or Rear-mounting) of the router. (For 19-inch racks, see

4.

Attaching Brackets for 19-Inch Racks section. For 23-inch racks, see Attaching Brackets for 23-Inch Racks
section. For ETSI racks, see Attaching Brackets for ETSI Racks section.)

Locate the mounting holes of the router.

5.

Align the rack-mounting bracket with the router and position with the four #6-32 x 0.25-inch screws

6.

(provided).

Insert the screws (four places) and tighten using a Number 2 Phillips screwdriver (each side).

7.

Position the router in the equipment rack lining up the bracket holes on the router with the holes on the

8.

rack and secure with four #6-32 x 0.25-inch mounting screws (two on each side).

Tighten the screws using a 1/4-inch flat-blade screwdriver (each side). The recommended maximum torque

9.

is 10 in.-lb.

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Installing the Router Chassis in the Rack

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2
Step 3

Step 4

Step 5
Step 6
Step 7
Step 8

Step 9

Locate the equipment rack position where you plan to install the router.

Verify that there are no obstructions and ensure that the equipment rack is stabilized.

Determine whether you are mounting the router on a 19-inch, 23-inch, or an ETSI rack. Rack-Mounting Brackets figure
shows the types of mounting brackets.

Determine the mounting position (Front-, Mid-, or Rear-mounting) of the router. (For 19-inch racks, see Attaching
Brackets for 19-Inch Racks section. For 23-inch racks, see Attaching Brackets for 23-Inch Racks section. For ETSI racks,
see Attaching Brackets for ETSI Racks section.)

Locate the mounting holes of the router.

Align the rack-mounting bracket with the router and position with the four #6-32 x 0.25-inch screws (provided).

Insert the screws (four places) and tighten using a Number 2 Phillips screwdriver (each side).

Position the router in the equipment rack lining up the bracket holes on the router with the holes on the rack and secure
with four #6-32 x 0.25-inch mounting screws (two on each side).

Tighten the screws using a 1/4-inch flat-blade screwdriver (each side). The recommended maximum torque is 10 in.-lb.

Installing the Router Chassis in the Rack

Note

Ensure adequate air flow when mounting the router in a rack. For more information, see the Air Flow
Guidelines section.

Note

SUMMARY STEPS

DETAILED STEPS

Step 1

Position the chassis in the rack as follows:

Install the cable guides before installing the router in a 19-inch EIA rack. See the Attaching the Cable
Guides section.

To install the router chassis in the equipment rack, perform these steps:

Position the chassis in the rack as follows:

1.

Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment

2.

rack.

Install the four M6x12mm zinc-plated steel screws through the holes in the bracket and into the threaded

3.

holes in the equipment rack posts.

Use a tape measure and level to verify that the chassis is installed straight and level.

4.

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Installing the Cisco ASR 920 Series Router

If the front of the chassis (front panel) is at the front of the rack, insert the rear of the chassis between the mounting

•

posts.

If the rear of the chassis is at the front of the rack, insert the front of the chassis between the mounting posts.

•

Attaching the Cable Guides

Step 2

Step 3

Step 4

Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment rack.
The following figure shows how to install the router in a 19-inch EIA rack.

Figure 10: Installing the Chassis in a 19-inch EIA Rack

Install the four M6x12mm zinc-plated steel screws through the holes in the bracket and into the threaded holes in the
equipment rack posts.

Use a tape measure and level to verify that the chassis is installed straight and level.

Attaching the Cable Guides

The Cisco ASR 920 Series Router supports the following cable guides:

• A920-CBL-GUIDE (left and right)—help in routing the cables from all components on the front panel

thereby enabling a proper cable-bending radius.

Note

If the chassis is mounted using 19-inch brackets, you must assemble the cable guides before installing the
chassis on the rack.

To install the cable guides, perform these steps:

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Attaching the Cable Guides

SUMMARY STEPS

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Position the cable guide-left and cable guide-right against the front of the chassis and align the four screw

1.

holes, as shown in the following figure.

Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended

2.

maximum torque is 3N-m.

Step 1

Position the cable guide-left and cable guide-right against the front of the chassis and align the four screw holes, as shown
in the following figure.

Figure 11: Cable Guide Installation For 19-inch Rack Brackets

Figure 12: Cable Guide Installation For ETSI Rack Brackets

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Installing the Cisco ASR 920 Series Router

Wall Mounting the Router

Step 2

Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended maximum torque
is 3N-m.

Figure 13: Installing the Cable Guides (As Per the Standard Kit)

Wall Mounting the Router

To install the router on a wall, follow the instructions in these procedures:

Attaching the Brackets to the Router for Wall-Mounting

While wall mounting the router, always ensure that the power supplies are at the top position.Note

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49

Mounting Router on the Wall

The following figure shows how to attach a 19-inch bracket to one side of the router. Follow the same steps
to attach the second bracket to the opposite side.

Figure 14: Attaching 19-inch Brackets for Wall Mounting

Installing the Cisco ASR 920 Series Router

Mounting Router on the Wall

For the best support of the router and cables, ensure the router is attached securely to wall studs or to a firmly
attached plywood mounting backboard.

Suitable for mounting on and over a concrete or other non-combustible surface only. Statement 345Warning

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Installing the Cisco ASR 920 Series Router

Mount the router with the front panel as shown in the following figure.

Figure 15: Mounting the Router on the Wall

Mounting Router on the Wall

When mounting the router vertically, ensure that the power supplies are at the top.Caution

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Installing and Removing SFP Modules

Installing and Removing SFP Modules

These sections describe how to install and remove SFP modules. The modules are inserted into the SFP module
slots as depicted in Installing an SFP Module into an SFP Module Slot figure. These field-replaceable modules
provide interfaces.

Each port must match the wavelength specifications on the other end of the cable. For reliable communications,
the cable must not exceed the stipulated cable length.

Use only Cisco SFP modules on the Cisco router. Each SFP module has an internal serial EEPROM that is
encoded with security information. This encoding provides a way for Cisco to identify and validate that the
SFP module meets the requirements for the router.

For detailed instructions on installing, removing, and cabling the SFP module, see the SFP module
documentation.

Installing SFP Modules

Installing the Cisco ASR 920 Series Router

Caution

SUMMARY STEPS

The following figure shows an SFP module that has a bale-clasp latch.

We strongly recommend that you do not install or remove fiber-optic SFP modules with cables attached
because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP
module. Disconnect all cables before removing or installing an SFP module.Removing and installing an
SFP module can shorten its useful life. Do not remove and insert SFP modules more often than is absolutely
necessary.

Figure 16: SFP Module with a Bale-Clasp Latch

To insert an SFP module into the module slot, follow these steps:

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

1.

If the SFP module that you are using has the markings, use them to identify the top side of the module.

2.

Align the SFP module in front of the slot opening.

3.

Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear

4.

of the slot.

Insert the cable connector into the SFP module:

5.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Installing SFP Modules

Step 1

Step 2
Step 3
Step 4

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
Some SFP modules identify the top side of the module with send (TX) and receive (RX) markings or arrows that show
the direction of the connection.

If the SFP module that you are using has the markings, use them to identify the top side of the module.

Align the SFP module in front of the slot opening.

Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear of the slot.

Figure 17: Installing an SFP Module into an SFP Module Slot

Step 5

Caution

Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the fiber-optic
cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light. Store the dust plugs for later use.

Insert the cable connector into the SFP module:

For fiber-optic SFP modules, insert the LC cable into the SFP module.

•

For copper 1000BASE-T SFP modules, insert the RJ-45 cable connector into the SFP module.

•

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Removing SFP Modules

Removing SFP Modules

To remove an SFP module from a module receptacle, follow these steps:

SUMMARY STEPS

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

1.

Disconnect the cable from the SFP module, and insert a dust plug into the cable end.

2.

Unlock and remove the SFP module, as shown in the following figure.

3.

Grasp the SFP module between your thumb and index finger, and carefully remove it from the module

4.

slot.

For fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP module to keep the optical

5.

interfaces clean.

Place the removed SFP module in an antistatic bag or other protective environment.

6.

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2

Step 3

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Disconnect the cable from the SFP module, and insert a dust plug into the cable end.

For reattachment, note which cable connector plug is send (TX) and which is receive (RX).Tip

Unlock and remove the SFP module, as shown in the following figure.

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Installing the Cisco ASR 920 Series Router

If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp latch is obstructed
and you cannot use your index finger to open it, use a small, flat-blade screwdriver or other long, narrow instrument to
open the bale-clasp latch.

Figure 18: Removing a Bale-Clasp Latch SFP Module

Connecting to the Copper Ports

Step 4
Step 5

Step 6

Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.

For fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP module to keep the optical interfaces
clean.

Place the removed SFP module in an antistatic bag or other protective environment.

Connecting to the Copper Ports

Copper ports [0:7] are capable of working 10/100/1000 Mbps.

Note

The router copper ports configure themselves to operate at the speed of attached devices. If the attached
ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting
devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce
performance or result in no linkage.

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Connecting to SFP Modules

SUMMARY STEPS

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

To maximize performance, choose one of these methods for configuring the Ethernet ports:

Let the ports autonegotiate both speed and duplex.

•

Set the port speed and duplex parameters on both ends of the connection.

•

When connecting to workstations, servers, and routers, connect a straight-through cable to an RJ-45

1.

connector on the front panel.When connecting to routers or repeaters, use a crossover cable.

Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when

2.

both the router and the connected device have established link.

Reconfigure and reboot the connected device, if necessary.

3.

Repeat Steps 1 through 3 to connect each device.

4.

Step 1

Step 2

Step 3
Step 4

When connecting to workstations, servers, and routers, connect a straight-through cable to an RJ-45 connector on the
front panel.When connecting to routers or repeaters, use a crossover cable.

Note

Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when both the
router and the connected device have established link.
If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem
or a problem with the adapter installed in the attached device.

Reconfigure and reboot the connected device, if necessary.

Repeat Steps 1 through 3 to connect each device.

You can use the mdix auto interface configuration command in the CLI to enable the automatic
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled, the router
detects the required cable type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for connections to a copper 100/1000, or
an SFP module port on the router, regardless of the type of device on the other end of the connection.

On user network interface (UNI) ports, the port LED is green after the link is established.Note

Connecting to SFP Modules

This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic SFP
modules, see the Connecting to Fiber-Optic SFP Modules section.

For instructions about how to install or remove an SFP module, see the Installing and Removing SFP Modules
section.

Connecting to Fiber-Optic SFP Modules

Follow these steps to connect a fiber-optic cable to an SFP module:

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Installing the Cisco ASR 920 Series Router

Class 1 laser product. Statement 1008Danger

Installing the Chassis Ground Connection

Caution

SUMMARY STEPS

DETAILED STEPS

Step 1
Step 2
Step 3
Step 4

Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.

Insert one end of the fiber-optic cable into the SFP module port.

Insert the other cable end into a fiber-optic connector on a target device.

Observe the port status LED.
The LED turns green when the router and the target device have an established link.

If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem
with the adapter installed in the target device.

Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from
contamination and ambient light.

Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.

1.

Insert one end of the fiber-optic cable into the SFP module port.

2.

Insert the other cable end into a fiber-optic connector on a target device.

3.

Observe the port status LED.

4.

If necessary, reconfigure and restart the router or target device.

5.

Step 5

If necessary, reconfigure and restart the router or target device.

Installing the Chassis Ground Connection

Before you connect the power or turn on the power to the router, you must provide an adequate chassis ground
(earth) connection to your router.

This section describes how to ground the chassis. The grounding lug location is on the back panel of the router.

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Installing the Chassis Ground Connection

Ensure that the grounding lug wire does not cover the fan opening.Tip

Figure 19: Attaching a Grounding Lug to the Rear of the Router

Installing the Cisco ASR 920 Series Router

Grounding-lug1

Caution

Warning

To ensure that the chassis ground connection that you provide is adequate, you need the following parts and
tools:

Ratcheting torque screwdriver with Phillips head that exerts up to 15 in.-lb (1.69 N-m) of torque for

•

attaching the ground wire to the router

Crimping tool as specified by the ground lug manufacturer

•

6-AWG or larger copper wire for the ground wire

•

Wire-stripping tools appropriate to the wire you are using

•

Before making connections to the router, ensure that you disconnect the power at the circuit breaker.
Otherwise, severe injury to you or damage to the router may occur.

Electric Shock Hazard: This fan tray has to be serviced by trained personnel only.Caution

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. Statement 1024

Use copper conductors only. Statement 1025Warning

Warning

When installing the unit, the ground connection must always be made first and disconnected last. Statement
42

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Installing the Cisco ASR 920 Series Router

This unit is to be installed in a restrictive access location and must be permanently grounded to a minimum
6-AWG copper ground wire.

Perform the following procedure to ground the router using a 2-hole lug and the corresponding mounting
point. Most carriers require a minimum 6-AWG ground connection. Verify your carrier’s requirements for
the ground connection.

SUMMARY STEPS

If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch

1.

(12.7 mm ±0.5 mm).

Slide the open end of your 2-hole ground lug over the exposed area of the ground wire.

2.

Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground

3.

wire as shown in the following figure.

Use a Phillips head screwdriver to attach the 2-hole ground lug and wire assembly to the router with the

4.

2 pan-head Phillips head screws.

Connect the other end of the ground wire to a suitable grounding point at your site.

5.

Installing the Chassis Ground Connection

DETAILED STEPS

Step 1

If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch (12.7 mm ±0.5
mm).

Figure 20: Stripping a Ground Wire

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Installing and Removing the Fan Tray

Installing the Cisco ASR 920 Series Router

Step 2
Step 3

Step 4

Step 5

Slide the open end of your 2-hole ground lug over the exposed area of the ground wire.

Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire as shown
in the following figure.

Figure 21: Crimping a Ground Lug on to the Ground Wire

Use a Phillips head screwdriver to attach the 2-hole ground lug and wire assembly to the router with the 2 pan-head
Phillips head screws.

Connect the other end of the ground wire to a suitable grounding point at your site.

Installing and Removing the Fan Tray

This section describes how to install and remove fan trays.

Installing the Fan Tray

Follow these steps to install the fan tray in the chassis:

Electric Shock Hazard: This fan tray has to be serviced by trained personnel only.Caution

Always wear the ESD wrist strap when installing or uninstalling the fan tray.Caution

Unplug all power sources before performing this procedure.Caution

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Installing the Cisco ASR 920 Series Router

SUMMARY STEPS

Orient the fan tray so that the captive screws are aligned to the chassis cavity on the back panel. See the

1.

following figure.

Push the fan assembly into the chassis until the power connector seats in the backplane and the captive

2.

installation screws make contact with the chassis.

Tighten the captive installation screws, using a flat-blade or number 2 Phillips-head screwdriver.

3.

DETAILED STEPS

Installing the Fan Tray

Step 1

Orient the fan tray so that the captive screws are aligned to the chassis cavity on the back panel. See the following figure.

Figure 22: Installing the Fan Tray in the Chassis

Step 2

Step 3

Push the fan assembly into the chassis until the power connector seats in the backplane and the captive installation screws
make contact with the chassis.

Tighten the captive installation screws, using a flat-blade or number 2 Phillips-head screwdriver.

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Removing the Fan Tray

Removing the Fan Tray

To remove the existing fan assembly, follow these steps:

Installing the Cisco ASR 920 Series Router

Caution

SUMMARY STEPS

When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan
blades stop completely before you remove the fan tray.

Unplug all power sources before performing this procedure.Caution

Always wear the ESD wrist strap when installing or uninstalling the fan tray.Caution

Locate the fan assembly in the chassis. The fan tray is located to the left of the chassis on the rear side.

1.

See the following figure.

Loosen the two fan tray captive installation screws by turning them counterclockwise, using a flat-blade

2.

or number 2 Phillips-head screwdriver.

Grasp the fan assembly with both hands, and pull it outward; rock it gently, if necessary, to unseat the fan

3.

assembly power connector from the backplane.

Pull the fan assembly clear of the chassis, and set it aside.

4.

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DETAILED STEPS

Interface Module Installation

Step 1

Locate the fan assembly in the chassis. The fan tray is located to the left of the chassis on the rear side. See the following
figure.

Figure 23: Uninstalling the Fan Tray from the Chassis

Step 2

Step 3

Step 4

Loosen the two fan tray captive installation screws by turning them counterclockwise, using a flat-blade or number 2
Phillips-head screwdriver.

Grasp the fan assembly with both hands, and pull it outward; rock it gently, if necessary, to unseat the fan assembly
power connector from the backplane.

Pull the fan assembly clear of the chassis, and set it aside.

Interface Module Installation

The following sections describe the various tasks of associated with interface module installation:

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Installing an Interface Module

Installing an Interface Module

Before inserting an interface module, make sure that the chassis is grounded.Caution

SUMMARY STEPS

To insert the interface module, carefully align the edges of the interface module between the upper and

1.

lower edges of the router slot.

Carefully slide the interface module into the router slot until the interface module makes contact with the

2.

backplane.

Tighten the locking thumbscrews on both sides of the interface module. The recommended maximum

3.

torque is 5.5 in.-lb (.62 N-m).

Connect all the cables to each interface module.

4.

Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Step 1

Step 2
Step 3

Step 4

To insert the interface module, carefully align the edges of the interface module between the upper and lower edges of
the router slot.

Carefully slide the interface module into the router slot until the interface module makes contact with the backplane.

Tighten the locking thumbscrews on both sides of the interface module. The recommended maximum torque is 5.5 in.-lb
(.62 N-m).

Connect all the cables to each interface module.

Removing an Interface Module

SUMMARY STEPS

To remove an interface module, disconnect all the cables from the interface module.

1.

Loosen the locking thumbscrews on both sides of the interface module.

2.

Slide the interface module out of the router slot by pulling on the handles. If you are removing a blank

3.

filler plate, pull the blank filler plate completely out of the router slot using the captive screws.

DETAILED STEPS

Step 1
Step 2
Step 3

64

To remove an interface module, disconnect all the cables from the interface module.

Loosen the locking thumbscrews on both sides of the interface module.

Slide the interface module out of the router slot by pulling on the handles. If you are removing a blank filler plate, pull
the blank filler plate completely out of the router slot using the captive screws.

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Installing the Cisco ASR 920 Series Router

Installing the Power Supply

The Cisco ASR 920 Router router provides the choice of two different power supplies:

• DC power—The DC power supply uses 2-position terminal block-style connector with positive

latching/securing and labeled connections for +24/48V, GRD, -24/48V. The terminal block connector
is of suitable size to carry the appropriate AWG wire size to handle the input current of the power supply.
No ON/OFF switch is provided.

• AC power—The AC power supply has an IEC 320-type power receptacle and a 15 Amp service connector.

You can use standard right angle power cords with the AC power supply. The power supply includes a
power cord retainer. No ON/OFF switch is provided.

You can install dual power supplies for redundancy.

Installing the Power Supply

Read the installation instructions before connecting the system to the power source. Statement 10Warning

Note

Caution

Products that have an AC power connection are required to have an external surge protective device (SPD)
provided as part of the building installation to comply with the Telcordia GR-1089 NEBS standard for
electromagnetic compatibility and safety.

Do not use interface module and power supply ejector handles to lift the chassis; using the handles to lift
the chassis can deform or damage the handles.

Power Connection Guidelines

This section provides guidelines for connecting the router’s power supplies to the site power source.

Warning

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. Statement 213

Warning

The plug-socket combination must be accessible at all times because it serves as the main disconnecting
device. Statement 1019

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Power Connection Guidelines

Installing the Cisco ASR 920 Series Router

Warning

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. Statement 1045

Guidelines for DC-Powered Systems

Basic guidelines for DC-powered systems include the following:

Each chassis power supply should have its own dedicated input power source. The source must comply

•

with the safety extra-low voltage (SELV) requirements in the UL 60950, CSA 60950, EN 60950, and
IEC 60950 standards.

The circuit must be protected by a dedicated two-pole circuit breaker. The circuit breaker should be

•

sized according to the power supply input rating and local or national code requirements.

The circuit breaker is considered the disconnect device and should be easily accessible.

•

The system ground is the power supply and chassis ground.

•

Do not connect the DC return wire to the system frame or to the system-grounding equipment.

•

Use the grounding lug to attach a wrist strap for ESD protection during servicing.

•

If the chassis is powered with -48V grounding of the positive, the it should be done at the power source

•

side and chassis should protected by a dedicated two-pole circuit breaker.

Guidelines for AC-Powered Systems

Basic guidelines for AC-powered systems include the following:

Each chassis power supply should have its own dedicated branch circuit.

•

The circuit breaker should be sized according to the power supply input rating and local or national code

•

requirements.

The AC power receptacles used to plug in the chassis must be the grounding type. The grounding

•

conductors that connect to the receptacles should connect to protective earth ground at the service
equipment.

Preventing Power Loss

Use the following guidelines to prevent power loss to the router:

To prevent loss of input power, ensure that the total maximum load on each circuit supplying the power

•

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

In some systems, you can use an UPS to protect against power failures at your site. Avoid UPS types

•

that use ferroresonant technology. These UPS types can become unstable with systems such as the Cisco
ASR 920 Series Router, which can have substantial current-draw fluctuations due to bursty data traffic
patterns.

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Installing the Cisco ASR 920 Series Router

Use the information in the Cisco ASR-920-12SZ-IM Router Specifications table to estimate the power
requirements and heat dissipation of the router based on a given configuration of the router. Determining
power requirements is useful for planning the power distribution system needed to support the router.

Installing the DC Power Supply Module

This equipment is suitable for installation in Network Telecommunications Facilities and locations where the
NEC applies.

This equipment is suitable for installations utilizing the Common Bonding Network (CBN).

The grounding architecture of this product is DC-Isolated (DC-I) for DC-powered products. DC-powered
products have a nominal operating DC voltage of 48 VDC.

Perform the following procedure to install the power supply module:

SUMMARY STEPS

Ensure that the system (earth) ground connection has been made. See the following figure.

1.

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by

2.

loosening the captive installation screws.

Verify that power to the DC circuit connected to the power supply you are installing is off. To ensure that

3.

power has been removed from the DC circuits, locate the circuit breakers for the DC circuits, switch the
circuit breakers to the OFF position, and tape the circuit-breaker switches in the OFF position.

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide

4.

the power supply into the power supply bay. Make sure that the power supply is fully seated in the bay.

Tighten the captive installation screws of the power supply. The recommended maximum torque is 5.5

5.

in.-lb (0.62 N-m).

Installing the DC Power Supply Module

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Installing the DC Power Supply Module

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2

Step 3

Step 4

Step 5

Ensure that the system (earth) ground connection has been made. See the following figure.

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by loosening the
captive installation screws.

Verify that power to the DC circuit connected to the power supply you are installing is off. To ensure that power has
been removed from the DC circuits, locate the circuit breakers for the DC circuits, switch the circuit breakers to the OFF
position, and tape the circuit-breaker switches in the OFF position.

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide the power
supply into the power supply bay. Make sure that the power supply is fully seated in the bay.

Tighten the captive installation screws of the power supply. The recommended maximum torque is 5.5 in.-lb (0.62 N-m).

Figure 24: Installing the DC Power Supply Module

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Installing the Cisco ASR 920 Series Router

Activating a DC Power Supply Module

Perform the following procedure to activate a DC power supply:

SUMMARY STEPS

Remove the tape from the circuit-breaker router handle, and restore power by moving the circuit-breaker

1.

router handle to the On (|) position.

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1)

2.

is green.

If the LEDs indicate a power problem, see Troubleshooting.

3.

If you are connecting a redundant DC power supply, repeat these steps for the second power source.

4.

DETAILED STEPS

Installing the DC Power Supply Module

Step 1

Remove the tape from the circuit-breaker router handle, and restore power by moving the circuit-breaker router handle
to the On (|) position.

Step 2
Step 3
Step 4

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1) is green.

If the LEDs indicate a power problem, see Troubleshooting.

If you are connecting a redundant DC power supply, repeat these steps for the second power source.

Note

If you are connecting a redundant DC power supply, ensure that each power supply is connected to a separate
power source in order to prevent power loss in the event of a power failure.

Installing the DC Power Cables

Note

When installing DC power supply, use 14 AWG, 90°C wires. Always ensure that the building’s installation
for short-circuit (overcurrent) protection does not exceed 15A.

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Installing the DC Power Supply Module

Installing the Cisco ASR 920 Series Router

Note

The DC connector or terminal block has an inbuilt screw and cage nut to which a torque of 1.3 to 1.8 N-m
can be applied.

Figure 25: DC Connector With Inbuilt Screw

0.27 inchesC0.97 inchesA

0.81 inchesM0.31 inchesB

To attach the DC power supplies:

SUMMARY STEPS

Locate the terminal block plug.

1.

Insert the DC-input power source wires into the terminal block plug.

2.

Attach the DC supply wires using the designated screws.

3.

Use a ratcheting torque screwdriver to torque the terminal block plug captive screw. See the following

4.

figure.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Removing the DC Power Supply Module

Step 1
Step 2
Step 3
Step 4

Locate the terminal block plug.

Insert the DC-input power source wires into the terminal block plug.

Attach the DC supply wires using the designated screws.

Use a ratcheting torque screwdriver to torque the terminal block plug captive screw. See the following figure.

Figure 26: Attaching the DC Power Supply Wires

Removing the DC Power Supply Module

This section provides information about removing and replacing the DC power supply.

Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003

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Removing the DC Power Supply Module

Installing the Cisco ASR 920 Series Router

Warning

SUMMARY STEPS

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030

Follow these steps to remove and replace the DC power supply:

Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional

1.

precaution, tape the circuit-breaker switch in the Off position.

Slip on the ESD-preventive wrist strap that was included in the accessory kit.

2.

Switch the power supply circuit-breaker switch to the Off (O) position.

3.

Pull the terminal block plug connector out of the terminal block head in the power supply. See the following

4.

figure.

Loosen the captive screws on the DC power supply.

5.

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the

6.

power supply out from the chassis while supporting it with the other hand.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Installing the AC Power Supply Module

Step 1

Step 2
Step 3
Step 4
Step 5
Step 6

Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional precaution,
tape the circuit-breaker switch in the Off position.

Slip on the ESD-preventive wrist strap that was included in the accessory kit.

Switch the power supply circuit-breaker switch to the Off (O) position.

Pull the terminal block plug connector out of the terminal block head in the power supply. See the following figure.

Loosen the captive screws on the DC power supply.

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the power supply
out from the chassis while supporting it with the other hand.

Figure 27: Removing the DC Power Supply Module

Installing the AC Power Supply Module

Follow these steps to install the AC power supply module:

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Installing the AC Power Supply Module

SUMMARY STEPS

Installing the Cisco ASR 920 Series Router

Ensure that the system (earth) ground connection has been made.

1.

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by

2.

loosening the captive installation screws.

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide

3.

the power supply into the power supply bay. Make sure that the power supply is fully seated in the bay.
See the following figure.

Slide the AC power supply cord inside the tie of the tie-and-holder and tighten the tie around the power

4.

supply cord.

Plug the power supply cord into the AC power supply.

5.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Installing the AC Power Supply Module

Step 1
Step 2

Step 3

Ensure that the system (earth) ground connection has been made.

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by loosening the
captive installation screws.

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide the power
supply into the power supply bay. Make sure that the power supply is fully seated in the bay. See the following figure.

Figure 28: Installing the AC Power Supply Module

Step 4
Step 5

Slide the AC power supply cord inside the tie of the tie-and-holder and tighten the tie around the power supply cord.

Plug the power supply cord into the AC power supply.

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Installing the AC Power Supply Module

Installing the AC Power Cables

To install the AC power cables in the power supply slots:

SUMMARY STEPS

Plug the power supply cord in the power supply module.

1.

Insert the power supply cord into the tie [1] and tighten the tie around the power supply cord as shown in

2.

[2] in the figure below.

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2

Plug the power supply cord in the power supply module.

Insert the power supply cord into the tie [1] and tighten the tie around the power supply cord as shown in [2] in the figure
below.

Figure 29: Attaching the AC Power Tie-and-Clip Cord

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Installing the Cisco ASR 920 Series Router

Activating an AC Power Supply Module

Perform the following procedure to activate an AC power supply:

SUMMARY STEPS

Plug the power cord into the power supply.

1.

Connect the other end of the power cord to an AC-input power source.

2.

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1)

3.

is green.

If the LEDs indicate a power problem, see Troubleshooting for troubleshooting information.

4.

If you are connecting a redundant AC power supply, repeat these steps for the second power source.

5.

Removing the AC Power Supply Module

DETAILED STEPS

Step 1
Step 2
Step 3
Step 4
Step 5

Plug the power cord into the power supply.

Connect the other end of the power cord to an AC-input power source.

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1) is green.

If the LEDs indicate a power problem, see Troubleshooting for troubleshooting information.

If you are connecting a redundant AC power supply, repeat these steps for the second power source.

Note

If you are connecting a redundant AC power supply, ensure that each power supply is connected to a separate
power source in order to prevent power loss in the event of a power failure.

Removing the AC Power Supply Module

This section describes how to remove and replace the AC power supply.

Warning

Warning

When you install the unit, the ground connection must always be made first and disconnected last. Statement
1046

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030

Installation of the equipment must comply with local and national electrical codes. Statement 1074Warning

Follow these steps to remove and replace the AC power supply:

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Removing the AC Power Supply Module

SUMMARY STEPS

Installing the Cisco ASR 920 Series Router

Disconnect the power cord from the power source. Do not touch any metal on the power cord when it is

1.

still connected to the power supply.

Loosen the tie and remove the power cord from the tie-and holder.

2.

Remove the power cord from the power connection on the power supply. Do not touch the metal prongs

3.

embedded in the power supply.

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the

4.

power supply out from the chassis while supporting it with the other hand.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Removing the AC Power Supply Module

Step 1

Step 2
Step 3

Step 4

Disconnect the power cord from the power source. Do not touch any metal on the power cord when it is still connected
to the power supply.

Loosen the tie and remove the power cord from the tie-and holder.

Remove the power cord from the power connection on the power supply. Do not touch the metal prongs embedded in
the power supply.

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the power supply
out from the chassis while supporting it with the other hand.

Figure 30: Removing the AC Power Supply Module

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Powering On the Router

Powering On the Router

After the router is either rack mounted or mounted on the wall, perform these tasks to complete the installation:

Power on the router.

•

Connect the front-panel ports. See the Connecting to SFP Modules section to complete the installation.

•

Connecting the Router to the Network

The sections describe how to connect a router to the network:

Connect only SELV services to all the ports.Note

Installing the Cisco ASR 920 Series Router

Connecting Console Cables

The sections describe how to connect to the router using console cables:

Connecting to the USB Serial Port Using Microsoft Windows

This procedure shows how to connect to the USB serial port using Microsoft Windows.

Note

SUMMARY STEPS

DETAILED STEPS

Install the USB device driver before establishing a physical connection between the router and the PC,
by using the USB console cable plugged into the USB serial port. Otherwise, the connection will fail. For
more information, see the Installing the Cisco USB Device Driver section.

Connect a USB Type A-to-Type A cable to the USB console port. If you are using the USB serial port for

1.

the first time on a Windows-based PC, install the USB driver now according to the instructions in the
following sections:

Connect the USB Type A cable to the PC.

2.

To communicate with the router, start a terminal emulator application, such as Microsoft Windows

3.

HyperTerminal. This software should be configured with the following parameters:

Step 1

80

Connect a USB Type A-to-Type A cable to the USB console port. If you are using the USB serial port for the first time
on a Windows-based PC, install the USB driver now according to the instructions in the following sections:

Note

Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide

You cannot use the USB port and the EIA port concurrently. When the USB port is used, it takes priority over
the EIA port.

Installing the Cisco ASR 920 Series Router

Connecting Console Cables

Step 2
Step 3

Connect the USB Type A cable to the PC.

To communicate with the router, start a terminal emulator application, such as Microsoft Windows HyperTerminal. This
software should be configured with the following parameters:

9600 baud

•

8 data bits

•

no parity

•

1 stop-bit

•

no flow control

•

Connecting to the Console Port Using Mac OS X

This procedure describes how to connect a Mac OS X system USB port to the console using the built-in OS
X terminal utility.

SUMMARY STEPS

Use the Finder to choose Applications > Utilities > Terminal.

1.

Connect the OS X USB port to the router.

2.

Enter the following commands to find the OS X USB port number:

3.

Connect to the USB port with the following command followed by the router USB port speed:

4.

DETAILED STEPS

Step 1
Step 2
Step 3

Step 4

Use the Finder to choose Applications > Utilities > Terminal.

Connect the OS X USB port to the router.

Enter the following commands to find the OS X USB port number:

Example:

macbook:user$ cd /dev
macbook:user$ ls -ltr /dev/*usb*
crw-rw-rw- 1 root wheel 9, 66 Apr 1 16:46 tty.usbmodem1a21 DT-macbook:dev user$

Connect to the USB port with the following command followed by the router USB port speed:

Example:

macbook:user$ screen /dev/tty.usbmodem1a21 9600

To disconnect the OS X USB console from the terminal window, enter Ctrl-a followed by Ctrl-\

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Connecting Console Cables

Connecting to the Console Port Using Linux

This procedure shows how to connect a Linux system USB port to the console using the built-in Linux terminal
utility.

SUMMARY STEPS

Open the Linux terminal window.

1.

Connect the Linux USB port to the router.

2.

Enter the following commands to find the Linux USB port number:

3.

Connect to the USB port with the following command, followed by the router USB port speed:

4.

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2
Step 3

Step 4

Open the Linux terminal window.

Connect the Linux USB port to the router.

Enter the following commands to find the Linux USB port number:

Example:

root@usb-suse# cd /dev
root@usb-suse /dev# ls -ltr *ACM*
crw-r--r-- 1 root root 188, 0 Jan 14 18:02 ttyACM0
root@usb-suse /dev#

Connect to the USB port with the following command, followed by the router USB port speed:

Example:

root@usb-suse /dev# screen /dev/ttyACM0 9600

To disconnect the Linux USB console from the terminal window, enter Ctrl-a followed by : then quit

Installing the Cisco USB Device Driver

A USB device driver must be installed the first time a Microsoft Windows-based PC is connected to the USB
serial port on the router.

This procedure describes how to install the Microsoft Windows USB device driver in Microsoft Windows
XP, Windows Vista, Windows 2000, Windows 7, and Windows 8. Download the driver for your router model
from the Tools and Resources Download Software site, USB Console Software category, at:

https://software.cisco.com/download/
release.html?mdfid=286037604&flowid=71056&softwareid=282855122&release=3.13&relind=AVAILABLE&rellifecycle=&reltype=latest

To download the driver, you must have a valid service contract associated to your Cisco.com profile.Note

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Installing the Cisco ASR 920 Series Router

SUMMARY STEPS

Unzip the file asr-9xx_usbconsole_drivers.zip.

1.

Double-click xrusbser_ver2100_installer.exe in the XR21x141x-Win-DriversOnly-Vers2.1.0.0/EXE folder.

2.

Click Next. The InstallShield Wizard Completed window is displayed.

3.

Click Finish.

4.

Connect the USB cable to the PC and router USB console ports. Follow the on-screen instructions to

5.

complete the installation of the driver.

XR21V1401 USB UART Device driver successfully installed message is displayed.

6.

DETAILED STEPS

Connecting Console Cables

Step 1
Step 2

Step 3
Step 4
Step 5

Step 6

Unzip the file asr-9xx_usbconsole_drivers.zip.

Double-click xrusbser_ver2100_installer.exe in the XR21x141x-Win-DriversOnly-Vers2.1.0.0/EXE folder.
Installation Wizard GUI is displayed.

Click Next. The InstallShield Wizard Completed window is displayed.

Click Finish.

Connect the USB cable to the PC and router USB console ports. Follow the on-screen instructions to complete the
installation of the driver.

XR21V1401 USB UART Device driver successfully installed message is displayed.
The USB console is ready for use.

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Connecting Console Cables

Uninstalling the Cisco USB Driver

Figure 31: Connecting the USB Console Cable to the Cisco ASR 920 Series Router

Installing the Cisco ASR 920 Series Router

SUMMARY STEPS

2USB Type-A console port1

USB Type-A to USB
Type-A console cable

This procedure describes how to uninstall the Microsoft Windows USB device driver in Microsoft Windows
XP, Windows Vista, Windows 2000, Windows 7, and Windows 8.

Disconnect the router console terminal before uninstalling the driver.Note

Choose Start > Control Panel > Add or Remove Programs .

1.

Scroll to Windows Driver Package - Exar corporation (xrusbser) Ports and click Remove. The Program

2.

Maintenance window is displayed.

Click Yes to uninstall the driver.

3.

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Installing the Cisco ASR 920 Series Router

DETAILED STEPS

Connecting to the EIA Console Port

Step 1
Step 2

Choose Start > Control Panel > Add or Remove Programs .

Scroll to Windows Driver Package - Exar corporation (xrusbser) Ports and click Remove. The Program Maintenance
window is displayed.

Step 3

Click Yes to uninstall the driver.

Connecting to the EIA Console Port

Note

SUMMARY STEPS

The US-to-RJ45 adapter cable and the DB9 console cable are not included with the router; they can be
ordered separately from Cisco.

The serial console cable kit is not included with the router; it is ordered separately.Note

To connect a terminal to the EIA Console port on the router, follow these steps:

Connect the USB end of the USB-to RJ-45 cable to the EIA Console port.

1.

Connect the RJ-45 end of the DB-9 adapter cable to the USB-to RJ-45 cable, as shown in the following

2.

figure.

Connect the DB-9 end of the console cable to the DB-9 end of the terminal.

3.

To communicate with the router, start a terminal emulator application, such as Microsoft Windows

4.

HyperTerminal. This software should be configured with the following parameters:

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Connecting to the EIA Console Port

DETAILED STEPS

Installing the Cisco ASR 920 Series Router

Step 1
Step 2

Connect the USB end of the USB-to RJ-45 cable to the EIA Console port.

Connect the RJ-45 end of the DB-9 adapter cable to the USB-to RJ-45 cable, as shown in the following figure.

Figure 32: Connecting a Modem to the Cisco ASR 920 Series Router

Step 3
Step 4

ComponentLabelComponentLabel

RJ-45 to DB-9 cable3EIA Console port1

Desktop or system4USB-to-RJ45 adapter2

Connect the DB-9 end of the console cable to the DB-9 end of the terminal.

To communicate with the router, start a terminal emulator application, such as Microsoft Windows HyperTerminal. This
software should be configured with the following parameters:

9600 baud

•

8 data bits

•

no parity

•

1 stop-bit

•

no flow control

•

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Installing the Cisco ASR 920 Series Router

Connecting a Management Ethernet Cable

When using the Ethernet Management port in the default mode (speed-auto and duplex-auto) the port operates
in the auto-MDI/MDI-X mode. The port automatically provides the correct signal connectivity through the
Auto-MDI/MDI-X feature. The port automatically senses a crossover or straight-through cable and adapts to
it.

However, when the Ethernet Management port is configured to a fixed speed (10, 100, or 1000 Mbps) through
command-line interface (CLI) commands, the port is forced to the MDI mode.

When in a fixed-speed configuration and MDI mode:

Use a crossover cable to connect to an MDI port

•

Use a straight-through cable to connect to an MDI-X port

•

Connecting a Management Ethernet Cable

Caution

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the Management Ethernet ports only to intra-building or unexposed wiring or cable. The
intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building
port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to
the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or
Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The
addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically
to OSP wiring.

Installing and Removing SFP and SFP+ Modules

The Cisco ASR 920 Series Router supports a variety of SFP and SFP+ modules, including optical and Ethernet
modules. For information on how to install and remove SFP and SFP+ modules, see the documentation for
the SFP or SFP+ module at:

http://www.cisco.com/en/US/partner/products/hw/modules/ps5455/prod_installation_guides_list.html

For information about inspecting and cleaning fiber-optic connections, see: http://www.cisco.com/en/US/

partner/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml

Caution

We recommend that you wait for 30 seconds between the removal and insertion of an SFP on an interface
module. We recommend this to allow the transceiver software to initialize and synchronize with the Cisco
ASR 920 Series Router. Changing an SFP more quickly could result in transceiver initialization issues
that disable the SFP.

Connecting a USB Flash Device

To connect a USB flash device to the router, insert the memory stick in the USB port labeled USB MEM.
The Flash memory module can be inserted only one way, and can be inserted or removed regardless of whether
the router is powered up or not.

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Connecting Timing Cables

The following figure shows the USB port connector on the Cisco ASR 920 Series Router.

Figure 33: Flash Token Memory Stick

Removing a USB Flash Device

To remove and replace a USB flash token memory stick from and into a router, follow these steps:

SUMMARY STEPS

Installing the Cisco ASR 920 Series Router

Pull the memory stick from the USB port.

1.

To replace the Cisco USB Flash memory stick, simply insert the module into the USB port labeled USB

2.

MEM. The Flash memory module can be inserted only one way, and can be inserted or removed regardless
of whether the router is powered up or not.

DETAILED STEPS

Step 1
Step 2

Pull the memory stick from the USB port.

To replace the Cisco USB Flash memory stick, simply insert the module into the USB port labeled USB MEM. The
Flash memory module can be inserted only one way, and can be inserted or removed regardless of whether the router is
powered up or not.
This completes the USB Flash memory installation procedure.

Connecting Timing Cables

The section describes how to connect timing cables to the Cisco ASR 920 Series Router:

Connecting Cables to a GPS Interface

The sections describe how to connect cables from the Cisco ASR-920-12SZ-IM Router to a GPS unit for
input or output timing of frequency:

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