Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Installation Manual

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

December 10, 2014

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CONTENTS

Preface 7

Obtaining Documentation and Submitting a Service Request 1-9

CHAPTER

1 Overview 1-1

Cisco ASR 920 Series Routers Features 1-1

GigabitEthernet Copper Ports 1-2
GE SFP Ports 1-2
SFP+ Ports 1-2
Interface Modules 1-2

Front and Back Panel 1-7
Specifications 1-9
External Interfaces 1-10

Power Supply and Fans 1-12
LED Indicators 1-13

Online Insertion and Removal 1-17
Licensing the Router 1-18

Gigabit Ethernet RJ45 Interface Module (A900-IMA8T) 1-3
10-Gigabit Ethernet XFP Interface Module (A900-IMA1X) 1-4
2x1 10 Gigabit Ethernet SFP+ Interface Module (A900-IMA2Z) 1-4
8 Port T1/E1 Interface Module (A900-IMA8D) 1-5
Interface Availability on Interface Modules 1-6

Network Interfaces 1-10
Network Timing Interfaces 1-11
External Alarm Inputs 1-11
Management Interfaces 1-11

PWR and STAT LEDs 1-13
CPU Management Port LEDs 1-14
SFP LEDs 1-15
SFP+ LEDs 1-15
8 T1/E1 Interface Module LEDs 1-15
RJ-45 LEDs 1-16
Power Supply Unit LEDs 1-16
System–Interface LED Behavior 1-17

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Contents

CHAPTER

2 Preparing for Installation 2-1

Safety Guidelines 2-1

Standard Warning Statements 2-2
Safety Guidelines for Personal Safety and Equipment Protection 2-3
Safety Precautions for Module Installation and Removal 2-3
Safety with Electricity 2-3
Power Supply Considerations 2-7
Preventing ESD Damage 2-7

Site Planning 2-8

General Precautions 2-8
Site Planning Checklist 2-8
Site Selection Guidelines 2-9

Environmental Requirements 2-9
Physical Characteristics 2-9

Air Flow Guidelines 2-10

Air Flow Guidelines for ETSI Rack Installation 2-12
Floor Loading Considerations 2-13
Site Power Guidelines 2-13

Electrical Circuit Requirements 2-14
Site Cabling Guidelines 2-14

Asynchronous Terminal Connections 2-15

Interference Considerations 2-15
Rack-Mounting Guidelines 2-16

Precautions for Rack-Mounting 2-16

Rack Selection Guidelines 2-16

Equipment Rack Guidelines 2-17
Installation Checklist 2-18
Creating a Site Log 2-18

CHAPTER

2

Receiving the Router 2-19

Chassis-Lifting Guidelines 2-20
Tools and Equipment 2-21
Unpacking and Verifying the Shipped Contents 2-21

3 Installing 3-1

Prerequisites 3-1

Installing the Router in a Rack 3-1

Installing the Chassis Brackets 3-2
Installing the Router Chassis in the Rack 3-11
Attaching the Cable Guides 3-13

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

Wall Mounting the Routers 3-15

Attaching the Brackets to the Router for Wall-Mounting 3-15
Mounting Routers on the Wall 3-16

Installing and Removing the Interface Module 3-18

Installing the Interface Module 3-19
Removing the Interface Module 3-20
Hot-Swapping the Interface Module 3-21

Installing and Removing the Fan Tray 3-22

Installing the Fan Tray 3-22
Removing the Fan Tray 3-24

Installing the Power Supply 3-27

Preventing Power Loss 3-28
Power Connection Guidelines 3-28

Guidelines for DC-Powered Systems 3-28
Guidelines for AC-Powered Systems 3-28

Installing a DC Power Supply 3-29

Installing a DC Power Supply Module 3-29
Attaching Cables to the DC Power Supply 3-30

Powering On the Router 3-31
Removing and Replacing a DC Power Supply 3-32
Installing an AC power Supply 3-34

Installing an AC Power Supply Module 3-34

Activating an AC Power Supply 3-35
Removing and Replacing an AC Power Supply 3-36

Contents

Installing and Removing SFP Modules 3-38

Installing SFP Modules 3-38
Removing SFP Modules 3-41

Connecting to the 10/100/1000 Ports 3-43

Connecting to SFP Modules 3-43

Connecting to Fiber-Optic SFP Modules 3-44

Installing the Chassis Ground Connection 3-44

Power Connection Guidelines 3-46

Guidelines for DC-Powered Systems 3-47

Guidelines for AC-Powered Systems 3-47

Preventing Power Loss 3-47

Activating a DC Power Supply 3-48

Activating an AC Power Supply 3-48

Connecting a Router to the Network 3-48

Connecting Console Cables 3-49

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Contents

Connecting to the USB Serial Port Using Microsoft Windows 3-49
Connecting to the Console Port Using Mac OS X 3-50
Connecting to the Console Port Using Linux 3-50
Installing the Cisco USB Device Driver 3-51

Uninstalling the Cisco USB Device Driver 3-52
Connecting to the EIA Console Port 3-52
Connecting a Management Ethernet Cable 3-53
Installing and Removing SFP and SFP+ Modules 3-54
Connecting a USB Flash Device 3-54

Removing a USB Flash Device 3-55
Connecting Timing Cables 3-55

Connecting a Cable to the BITS Interface 3-55

Connecting Cables to the GPS Interface 3-55
Connecting Ethernet Cables 3-57
Connecting Cables to SFP Modules 3-58
Connector and Cable Specifications 3-58

CHAPTER

CHAPTER

4 Initial Configuration 4-1

Checking Conditions Prior to System Startup 4-1

Powering Up the Router 4-2

Verifying the Front Panel LEDs 4-7
Verifying the Hardware Configuration 4-7
Checking Hardware and Software Compatibility 4-7

Configuring the Router at Startup 4-8

Accessing the CLI Using the Console 4-8
Configuring Global Parameters 4-9
Checking the Running Configuration Settings 4-10
Saving the Running Configuration to NVRAM 4-10

Safely Powering Off the Router 4-10

Automatic Shutdown of the Router 4-11

5 Troubleshooting 5-1

Pinouts 5-1

BITS Port Pinouts 5-1
GPS Port Pinout 5-2
Time-of-Day Port Pinouts 5-2
Alarm Port Pinouts 5-3
Management Ethernet Port Pinouts 5-3
USB Console Port Pinouts 5-4

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USB Flash or MEM Port Pinouts 5-4
RJ45C Port Pinouts 5-5
Optical Fiber Specifications 5-5
Alarm Conditions 5-5

Contents

CHAPTER

CHAPTER

A Site Log A-1

B Supported PIDs B-1

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Contents

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

6

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-920-24SZ-IM— Twenty Four 1GE Fiber ports, Four 10G ports, and One slot for modular

interface card, with replaceable redundant AC and DC power supplies

• ASR-920-24SZ-M—Twenty Four 1GE Fiber ports and Four 10G ports, with replaceable redundant

AC and DC power supplies

• ASR-920-24TZ-M—Twenty Four 1 GE Copper ports and Four 10G ports, with replaceable

redundant AC and DC power supplies

Document Revision History

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

Release Date Change Summary

Cisco IOS XE Release 3.14.0S November 22, 2014 First release.

Document Audience

This guide is intended for users who are responsible for installing the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M 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.

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

7

Organization

This guide includes the following sections:

Title Description

Overview Describes the features and specifications of the Cisco

Preparing for Installation Describes the installation of the Cisco ASR

Installing Describes the installation of router on a rack as well as

Initial Configuration Describes basic router configuration.

Troubleshooting Describes troubleshooting information.

Site Log Provides a record of actions related to installing and

Supported PIDs Describes the supported SFPs.

ASR 920 Series Aggregation Services Routers.

920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M
Router at your site.

installation of its components.

maintaining the router.

Conventions

This document uses the following conventions:

Convention Indication

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

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

values are in italic font.

[ ] Elements in square brackets are optional.

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

vertical bars.

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

vertical bars.

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

the string will include the quotation marks.

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

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

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

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

indicates a comment line.

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

manual.

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8

Obtaining Documentation and Submitting a Service Request

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

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

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

damage or loss of data.

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

the paragraph.

Warning

Warning

IMPORTANT SAFETY INSTRUCTIONS

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

SAVE THESE INSTRUCTIONS

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

Obtaining Documentation and Submitting a Service Request

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

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

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10

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

CHA P T ER

Overview

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

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

Cisco ASR 920 Series Routers Features

The Cisco ASR 920 Series Routers family includes:

• ASR 920-Modular [ASR-920-24SZ-IM]—This sub-family with 1.5 RU form factor has fixed ENET

interfaces (four 10GE and twenty-four 1GE Fiber), one slot for modular interface card and
redundant modular power supplies (AC/DC). The interface modules from ASR 900 family of routers
can be leveraged for use with this model.

• ASR 920-Fixed [ASR-920-24SZ-M/ASR-920-24TZ-M]—This sub-family with 1 RU form factor

has fixed ENET interfaces (four 10GE and twenty-four 1GE Copper or SFP) and redundant modular
power supplies (AC/DC).

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

1

Table 1-1 Supported Ports on Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router

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

ASR-920-24SZ-IM 24 4 24 Fiber Built in 4 SFP+ ToD and BITS

GPS 1 PPS and
GPS 10 MHz

ASR-920-24SZ-M/
ASR-920-24TZ-M

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide

24 4 24 Fiber

24 Copper

Built in 4 SFP+ NA

1-1

Cisco ASR 920 Series Routers Features

GigabitEthernet Copper Ports

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

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

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

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

• Frame size of 9216 bytes.

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

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

GE SFP Ports

The GE SFP ports support the following features:

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

Chapter 1 Overview

SFP+ Ports

• Copper 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.

Note Copper based SFPs do not support synchronous ENET operations.

The SFP+ ports support the following features:

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

• Any mix of SFPs is supported unless specifically noted.

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

• Frame size of 9216 bytes.

Interface Modules

The Cisco ASR-920-24SZ-IM Router interface modules are field-replaceable units. In addition to the
ports provided on an RSP, the Cisco ASR-920-24SZ-IM Router supports the following interface
modules:

• Gigabit Ethernet RJ45 Interface Module (A900-IMA8T)

• 10-Gigabit Ethernet XFP Interface Module (A900-IMA1X)

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Chapter 1 Overview

390614

• 2x1 10 Gigabit Ethernet SFP+ Interface Module (A900-IMA2Z)

• 8 Port T1/E1 Interface Module (A900-IMA8D)

Gigabit Ethernet RJ45 Interface Module (A900-IMA8T)

The Gigabit Ethernet RJ45 interface module provides eight Gigabit Ethernet copper ports. Figure 1-1
shows the interface module.

Figure 1-1 8 x 1-Gigabit Ethernet RJ45 (Copper) Interface Module

Cisco ASR 920 Series Routers Features

•

For more information about installing an RJ45 Gigabit Ethernet module, see the “Installing the

Interface Module” section on page 3-19.

• To determine interfaces available on the RJ45 Gigabit Ethernet module, see the “Interface

Availability on Interface Modules” section on page 1-6.

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Cisco ASR 920 Series Routers Features

10-Gigabit Ethernet XFP Interface Module (A900-IMA1X)

The 10-Gigabit Ethernet XFP interface module provides a single port supporting a 10-Gigabit Ethernet
XFP module. Figure 1-2 shows the interface module.

Figure 1-2 1 x 10-Gigabit Ethernet XFP Interface Module

Chapter 1 Overview

390617

For more information about installing a 10-Gigabit Ethernet XFP module, see the “Installing the

•

Interface Module” section on page 3-19.

• To determine interfaces available on the 10-Gigabit Ethernet XFP module, see the “Interface

Availability on Interface Modules” section on page 1-6.

• For information on supported SFPs, see the Cisco ASR 900 Series Aggregation Services Router

Interface Modules Data Sheet at

http://www.cisco.com/c/en/us/products/routers/asr-903-series-aggregation-services-routers/datash
eet-listing.html.

2x1 10 Gigabit Ethernet SFP+ Interface Module (A900-IMA2Z)

The 2-port 10-Gigabit Ethernet interface module provides a dual port supporting a 10-Gigabit Ethernet
SFP+ and XFP module.

Figure 1-3 2X10 Gigabit Ethernet Interface Module

1-4

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Chapter 1 Overview

364202

Cisco ASR 920 Series Routers Features

391549

• For more information about installing the 2X10 GE SFP Gigabit Ethernet module, see the “Installing

the Interface Module” section on page 3-19.

• To determine interfaces available on the 2X10 GE SFP Gigabit Ethernet module, see the “Interface

Availability on Interface Modules” section on page 1-6.

• For information on supported SFPs, see the Cisco ASR 900 Series Aggregation Services Router

Interface Modules Data Sheet at

http://www.cisco.com/c/en/us/products/routers/asr-903-series-aggregation-services-routers/datash
eet-listing.html.

8 Port T1/E1 Interface Module (A900-IMA8D)

The 8T1/E1 interface module provides connectivity for up to 8 x T1/E1 ports through RJ48C connectors
on the front panel. Figure 1-4 shows the interface module.

Figure 1-4 8 x T1/E1 Interface Module

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Cisco ASR 920 Series Routers Features

• For more information about installing a 8 Port T1/E1 interface module, see the “Installing the

Interface Module” section on page 3-19.

• To determine interfaces available on the 8 Port T1/E1 interface module, see the “Interface

Availability on Interface Modules” section on page 1-6.

• For LED indicator information on the 8 Port T1/E1 interface module, see the “8 T1/E1 Interface

Module LEDs” section on page 1-15.

• For RJ45C pinout information on the 8 Port T1/E1 interface module, see the “RJ45C Port Pinouts”

section on page 5-5.

Interface Availability on Interface Modules

Note Cisco ASR-920-24SZ-IM Router does not support over-subscription mode. You must disable the ports

as appropriate to restrict the system usage to 64 Gbps. Enabling all the interfaces in over-subscription
mode can result in an unpredictable system performance.

The following table provides a snapshot of the interfaces available on supported interface modules:

Chapter 1 Overview

Table 1-2 Interface Availability on Supported Interface Modules

Interface Module Quantity Interfaces in Resulting System

Cu SFP 10GE T1/E1 OC3/

OC12

System
Oversubscribed

DS3
/E3

Front Panel
Ports Disabled

None 0 0 24 4 0 0 0

A900-IMA8T 1 8 16 4 0 0 0 No 16 to 23

A900-IMA2Z 1 0 24 6 0 0 0 Yes

A900-IMA1X 1 0 24 5 0 0 0 Yes

A900-IMA8D 1 0 20 4 8 0 0 No 20 to 23

1-6

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Chapter 1 Overview

1

3578 10

11

14 15

16

17 18

19

20

21

6

2 49

391970

1312

2

1

391971

Front and Back Panel

The following figures show the port numbering for the Cisco ASR-920-24SZ-IM Router:

Figure 1-5 Front Panel of Cisco ASR-920-24SZ-IM Router

Cisco ASR 920 Series Routers Features

1 Power Supply 0 (AC or DC) 12 4x10GE SFP+

2 Power Supply 0 LED (AC or DC) 13 Alarm port

3 Power Supply 1 (AC or DC) 14 USB Console port

4 Power Supply 1 LED (AC or DC) 15 USB Memory port

5 RJ-48 slot for ToD 16 Interface Module (IM) power LED

6 RJ-48 slot for BITS 17 1 PPS co-axial connector

7 Console port (TIA/EIA-232F) 18 10 MHz co-axial connector

8 Auxiliary Console port 19 IM Status LED

9 Management port 20 System Status LED

10 24x1GE SFP Fiber ports 21 Board power LED

11 Slot for ports on the interface module — —

Figure 1-6 Back Panel of Cisco ASR-920-24SZ-IM Router

1 Grounding lugs 2 Fan status LED

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Cisco ASR 920 Series Routers Features

1 3

5

6

12

11

2 4

8

7 1091314

391972

21

391973

Figure 1-7 Front Panel of Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router

1 Power Supply 0 (AC or DC)

2 Power Supply 0 LED (AC or DC) 9 4x10GE SFP+

3 Power Supply 1 (AC or DC) 10 USB Memory port

4 Power Supply 1 LED (AC or DC) 11 Alarm port

5 Console port (TIA/EIA-232F) 12 USB Console port

6 Management port 13 Board power LED

7 Auxiliary Console port 14 System Status LED

Chapter 1 Overview

8 24x1GE SFP Fiber (Cisco ASR-920-24SZ-M)

24x1GE SFP Copper (Cisco ASR-920-24TZ-M)

Figure 1-8 Back Panel of Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router

1 Grounding lugs 2 Fan status LED

1-8

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Chapter 1 Overview

Specifications

Cisco ASR 920 Series Routers Features

Table 1-3 describes the other features of Cisco ASR-920-24SZ-IM Router (AC and DC) and Cisco

ASR-920-24SZ-M, ASR-920-24TZ-M Router (AC and DC) Routers.

Table 1-3 Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router Specifications

Specification ASR-920-24SZ-IM ASR-920-24SZ-M, ASR-920-24TZ-M

Dimension
Width x Depth x
Height

Weight 7.08 kg

Rack Unit One and a half RU One RU

Airflow Front to back and side to back Front to back

Cable access Front cable access Front cable access

System throughput 64 Gbps 64 Gbps

Modularity Interface module None

Power Supply

Redundant Yes Yes

AC Yes Yes

Power

Specification

DC Yes Yes

Power

Specification

System Power
Consumption

Power Dissipation 614.18 BTU/hr Maximum,

Operating
Temperature/Humidity

Alarms

17.5 x 9.43 x 2.6 inches

Note Dimensions exclude the

PSU and IM handle.

17.5 x 9.43 x 1.72 inches

Note Dimensions exclude the PSU and

IM handle.

ASR-920-24SZ-M: 5.53 kg

(inclusive of rack brackets,
twenty-four SFP and four SFP+
optics, two AC PSUs and an IM
card)

ASR-920-24TZ-M: 4.90 kg

(inclusive of rack brackets, twenty-four
SFP (only for ASR-920-24SZ-M) and
four SFP+ optics and two AC PSUs)

250 W Maximum 250 W Maximum

250 W Maximum 250 W Maximum

180 W Maximum, 130 W Typical

(including installed IM)

ASR-920-24SZ-M: 145 W Maximum,
110 W Typical
ASR-920-24TZ-M: 130 W Maximum,
100 W Typical

ASR-920-24SZ-M: 494.76 BTU/hr

443.57 BTU/hr Typical

(including installed IM)

Maximum, 375.33 BTU/hr Typical

ASR-920-24TZ-M: Max: 443.57
BTU/hr Maximum, 341.21 BTU/hr
Typica l

–40º C to 70º C

5-95% RH

• 4 alarm dry contact inputs

(normally open)

• LED indicators for critical,

major and minor alarms

–40º C to 70º C

5-95% RH

• 4 alarm dry contact inputs (normally

open)

• LED indicators for critical, major

and minor alarms

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Table 1-3 Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router Specifications

Specification ASR-920-24SZ-IM ASR-920-24SZ-M, ASR-920-24TZ-M

TDM Support Supported through IM card None

Mounting option

• Front or rear rail 19 inches or

23 inches

Chapter 1 Overview

• Front or rear rail 19 inches or 23

inches

• ETSI 300 mm cabinet

• Wall Mount (with only side

mount option).

Note For more information,

see Wall Mounting the

Routers, page 3-15.

Port Configuration 24x1G and 4x10G ports and IM

• ETSI 300 mm cabinet

• Wall Mount (with only side mount

option)

Note For more information, see Wall

Mounting the Routers,
page 3-15.

24x1G and 4x10G ports

card ports

Port Numbering 24x1G SFP – Port [0:23]

4x10G SFP+ – Port [24:27]

24x1G SFP (Fiber) – Port [0:23]
(ASR-920-24SZ-M)

24x1G SFP (Copper) – Port [0:23]
(ASR-920-24TZ-M)

4x10G SFP+ – Port [24:27]

Combo Ports No combo ports No combo ports

LEDs Data Port LEDs

System Status LED
Management Port LED
PSU LED

System Status LED
Management Port LED
PSU LED
Fan Tray LED

Fan Tray LED

Temperature Sensors Five temperature sensors for

Board

Five temperature sensors for Board

Two temperature sensors for each PSU
Two temperature sensors for each
PSU

Timing Interfaces External ports for BITS/ToD

SMA ports for 1 PPS and 10 M

No external timing ports

1588v2 and SyncE feature supported
1588v2 and SyncE feature
supported

External Interfaces

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router have these external
physical interfaces on the front panel:

Network Interfaces

The network interfaces are provided through fixed ports.

• GE SFP ports (fiber)—supports 100/1000 modes (ASR 920-24SZ-IM and ASR-920-24SZ-M)

• GE SFP ports (copper)—supports 10/100/1000 operation (ASR-920-24TZ-M)

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Chapter 1 Overview

• 10GE SFP+—supports 10G mode.

Network Timing Interfaces

Note Network timing interface is available only on Cisco ASR-920-24SZ-IM Router.

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

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

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

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

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

• GPS 10 Mhz input and output—10 MHz input for GPS Synchronization. This connector on the

front panel can provide 10MHz output as well from Cisco ASR-920-24SZ-IM Router. The direction
can be configured using software.

• GPS 1 PPS input and output—1 PPS input for GPS Synchronization. This connector on the front

panel can provide 1 PPS output as well from Cisco ASR-920-24SZ-IM Router. The direction can be
configured using software.

Cisco ASR 920 Series Routers Features

External Alarm Inputs

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router supports four dry contact
alarm inputs through an RJ-45 jack on the front panel.

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

generated when the current is flowing.

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

Management Interfaces

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router have the following
management interfaces:

Management ENET Port

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

Note This is not a data plane port.

Note This interface does not support Synchronous Ethernet Clocking.

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Cisco ASR 920 Series Routers Features

RS232-EIA Console Port

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

Note The RS232-EIA 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.

USB Console

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router for providing console access to ROMMON, Cisco
IOS-XE and diagnostics. While it uses the Type-A connector, it operates as a USB peripheral only for
connection to an external host computer. This interface requires the use of a Type-A to Type-A connector
instead of a standard USB cable.

Note Use of the USB console is mutually exclusive of the RS232 console port. When the USB console cable

is inserted in the USB console port, the RS232 console port is automatically disabled. This interface
requires the use of a Type-A to Type-A USB cable.

Chapter 1 Overview

Note To use the USB console, you must download and install EXAR driver XR21x1410 on the external host

computer.

USB Mass Storage

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router for inserting external USB mass storage devices, such as
standard USB flash drives. This interface is used to load images, load or store configurations, write logs,
and so on. It supports operation up to 12Mbps.

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

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. To use this port flow control must be disabled.

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

Power Supply and Fans

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router support either AC or DC
power supplies in a 1+1 redundant configuration. The PSUs are hot-swappable. Load is shared between
PSUs when both the PSUs are inserted and powered-up. Status LED provided on both AC and DC PSU
indicates the status and output condition.

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Chapter 1 Overview

Note DC PSU can be switched on or off using a switch on the front panel of the DC PSU.

Note For DC PSU, the UVP and OVP limits vary depending on the input voltage applied at power up:

Cisco ASR 920 Series Routers Features

Table 1-4 Power Supply Specification

Specification AC DC

Voltage 100 V – 240 V, 50/60Hz -48/-60 V or 24 V

Current 2.6 A through a standard C16 type

receptacle

Input Power 260 W (ASR-920-PWR-A) 260 W (ASR-920-PWR-D)

For -48/-60 V: UVP= -36 Vdc and OVP = -72 Vdc
For 24 V: UVP =18 Vdc and OVP = 32 Vdc

5.5 A –48/–60 V

11 A –24 V

through a two-position terminal block

Note 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.

Note For DC systems, if a surge of more than 1KV is expected, add an appropriate external surge protective

device.

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router have removable fan tray
as part of the system. The fan tray is hot-swappable. The system is designed to operate at its maximum
operating temperature of 70º C and at 65º C in case of failure of a single fan, for a maximum of four
hours.

LED Indicators

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

PWR and STAT LEDs

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

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

before booting it.

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Chapter 1 Overview

Cisco ASR 920 Series Routers Features

Table 1-5 PWR and STAT LED Indications

PWR LED State STAT LED state Indication Comment

Amber Off Power in the system is all right and FPGA

configuration is taking place.

Amber Red FPGA Image Validation Error. System is in unresponsive

Flashing Amber and
Green alternatively

Flashing Amber and
Green alternatively

Amber Upgrade FPGA image error, continuing with

Golden FPGA image.

Off FPGA configuration successful and Digital

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

Flashing Amber and
Green alternatively

Red Digital code signing reported failure in

ROMMON image validation.

Green Flashing Amber ZTP process has begun. Both LEDs turn Green once

Green Off IOS-XE image is booting.

Green Green Successfully booted and system is operating

normally.

Green Amber A minor alarm or synchronization is in

Holdover or free-running mode

Green Red A major or critical alarm (high temperature

reported for any sensor) or multiple fan
failure.

Permanent Amber/Off
indicates FPGA configuration
failure.

state. No console messages.

—

—

System is in unresponsive
state. No console messages.

provisioning is complete.

—

—

—

CPU Management Port LEDs

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

Table 1-6 CPU Management Port LED Indication

LED LED State Indication

Left Green Link up in 1000 Mbps

Right Green Link up in full duplex

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Blinking Green Activity in 1000 Mbps

Amber/Orange Link up in 100/10 Mbps

Blinking Amber/Orange Activity in 100/10 Mbps

Off Link down

Off Link up in half duplex

Chapter 1 Overview

SFP LEDs

SFP+ LEDs

Cisco ASR 920 Series Routers Features

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

Table 1-7 SFP Port LED Indication

LED LED State Indication

Labeled same as the
SFP port number

Each SFP+ port has an LED indicator.

Table 1-8 SFP+ Port LED Indication

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

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

Yellow Fault/Error

Off Link down

LED LED State Indication

Labeled same as the
SFP port number

8 T1/E1 Interface Module LEDs

Table 1-9 summarizes the LEDs for the 8 x T1/E1 interface module.

Table 1-9 8 x T1/E1 Interface Module LEDs

LED LED State Indication

Active Green Active

Port Green All ports up

Green Link up in 10G

Blinking Green Activity in 10G

Yellow Fault/Error

Off Link down

Off Operationally down; card is disabled or

shut down

Blinking green All ports up and one or more ports in a

loopback state

Amber One or more configured ports are down

Blinking amber One or more configured ports are down

and at least one configured port is in a
loopback state

Off All ports disabled or shut down

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Table 1-9 8 x T1/E1 Interface Module LEDs

LED LED State Indication

Power
(PWR)

Operating Status
(STAT)

RJ-45 LEDs

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

Chapter 1 Overview

Green All power rails are within supported range

Red Disabled

Off No power to the Interface Module

Red Failed

Off Disabled or powered-down

Blinking red Booting

Green Active

Table 1-10 RJ-45 LED Indication

LED LED State Indication

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

Right Green Link up in full duplex

Power Supply Unit LEDs

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

Table 1-11 PSU LED Indication

LED LED State Indication

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

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

Yellow Fault/Error

Off Link down

Off Link up in half duplex

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

in the power supply unit).

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Chapter 1 Overview

System–Interface LED Behavior

Table 1-12 1G Copper and 1G SFP LED Indication

Event

ROMMON Off/Off Off

IOS Shut Off/Off Off

IOS No shut (cable disconnect) Yellow/Off Yellow

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

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

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

Cisco ASR 920 Series Routers Features

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

Green/Green Off

Off/Off Green

Off/Off Green

Table 1-13 Management Port LED Indication

Event 10G Port LEDs Management Port LEDs (Link/Duplex)

ROMMON (cable connect) Off Green/Green (1000 Mbps, Full Duplex)

ROMMON (cable disconnect) Off Off/Off

IOS Shut Off Off/Off

IOS No shut (cable disconnect) Orange Off/Off

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

Online Insertion and Removal

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M 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.

• Except for TDM IM, you can hot-swap an interface module with a similar interface module on Cisco

ASR-920-24SZ-IM Router. For more information, see “Hot-Swapping the Interface Module”

section on page 3-21.

Orange/Green (100/10 Mbps, Full Duplex)

Orange/Green in 100/10M mode

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Cisco ASR 920 Series Routers Features

• 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 chassis 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:

Table 1-14 Cisco ASR-920-24SZ-IM Router Shut Down Time Table

Sl. Inlet Ambient Temperature (ºCelsius) Shut Down Time (Minimum)

1 –10 to –5 14 minutes

2 –4 to 15 8 minutes

3 16 to 29 6 minutes 30 seconds

4 30 to 40 4 minutes 30 seconds

5 41 to 44 3 minutes 20 seconds

6 45 to 49 2 minutes 50 seconds

7 50 to 54 2 minutes 10 seconds

8 55 to 59 1 minutes 35 seconds

9 60 to 64 1 minute

10 65 and above 35 seconds

Chapter 1 Overview

Licensing the Router

The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router support the following
types of licenses:

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

–

1G upgrade license

–

10G upgrade license

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

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

• Advanced Metro IP Access

• Metro IP Access

• Metro Access (default)

The following methods are used to activate the above licenses:

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

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

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

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

1-18

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

Cisco Secure server.

Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide