Cisco ASR-920-24SZ-IM, ASR-920-24TZ-M, ASR-920-24SZ-M Hardware Installation Manual
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
First Published: 2016-07-04
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Cisco Systems, Inc. All rights reserved.
CONTENTS
Preface
CHAPTER 1
Preface ix
Document Revision History ix
Document Audience x
Document Organization x
Document Conventions x
Obtaining Documentation and Submitting a Service Request xii
Overview 1
Cisco ASR 920 Series Routers Features 1
GigabitEthernet Copper Ports 2
GE SFP Ports 2
SFP+ Ports 2
Interface Modules 3
Gigabit Ethernet RJ45 Interface Module (A900-IMA8T) 3
10-Gigabit Ethernet XFP Interface Module (A900-IMA1X) 4
2x1 10 Gigabit Ethernet SFP+ Interface Module (A900-IMA2Z) 5
8-Port 1 Gigabit Ethernet + 1-Port 10 Gigabit Ethernet SFP+ Combination Interface Module
6
8 Port T1/E1 Interface Module (A900-IMA8D) 7
Interface Availability on Interface Modules 7
Front and Back Panel 9
Specifications 12
External Interfaces 14
Network Interfaces 14
Network Timing Interfaces 15
External Alarm Inputs 15
Management Interfaces 15
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Power Supply and Fans 15
LED Indicators 16
PWR and STAT LEDs 16
CPU Management Port LEDs 18
SFP LEDs 18
SFP+ LEDs 18
8 T1/E1 Interface Module LEDs 19
RJ-45 LEDs 20
Power Supply Unit LEDs 20
System–Interface LED Behavior 21
Online Insertion and Removal 22
Licensing the Router 23
CHAPTER 2
Preparing for Installation 25
Safety Guidelines 25
Standard Warning Statements 25
Safety Guidelines for Personal Safety and Equipment Protection 26
Safety Precautions for Module Installation and Removal 27
Safety with Electricity 27
Power Supply Considerations 30
Preventing ESD Damage 30
Site Planning 31
General Precautions 31
Site Planning Checklist 31
Site Selection Guidelines 32
Environmental Requirements 32
Physical Characteristics 33
Air Flow Guidelines 33
Air Flow Guidelines for ETSI Rack Installation 36
Floor Loading Considerations 36
Site Power Guidelines 36
Electrical Circuit Requirements 37
Site Cabling Guidelines 37
Asynchronous Terminal Connections 38
Interference Considerations 38
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Electromagnetic Interference 38
Radio Frequency Interference 38
Lightning and AC Power Fault Interference 38
Rack-Mounting Guidelines 39
Precautions for Rack-Mounting 39
Rack Selection Guidelines 39
Equipment Rack Guidelines 40
Locating for Safety 40
Locating for Easy Maintenance 40
Locating for Proper Airflow 41
Installation Checklist 41
Creating a Site Log 42
CHAPTER 3
Receiving the Router 43
Chassis-Lifting Guidelines 44
Tools and Equipment 45
Unpacking and Verifying the Shipped Contents 45
Installing the Router 49
Prerequisites 49
Installing the Router in a Rack 50
Installing the Chassis Brackets 50
Installing the Router Chassis in the Rack 56
Attaching the Cable Guides 59
Wall Mounting the Routers 61
Attaching the Brackets to the Router for Wall-Mounting 62
Mounting Routers on the Wall 62
Installing and Removing the Interface Module 66
Installing the Interface Module 66
Removing the Interface Module 68
Hot-Swapping the Interface Module 69
Installing and Removing the Fan Tray 70
Installing the Fan Tray 70
Removing the Fan Tray 73
Installing the Power Supply 76
Preventing Power Loss 77
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Power Connection Guidelines 77
Guidelines for DC-Powered Systems 78
Guidelines for AC-Powered Systems 78
Installing a DC Power Supply 78
Installing a DC Power Supply Module 79
Attaching Cables to the DC Power Supply 80
Powering On the Router 82
Removing and Replacing a DC Power Supply 82
Installing an AC power Supply 84
Installing an AC Power Supply Module 85
Activating an AC Power Supply 86
Removing and Replacing an AC Power Supply 89
Installing and Removing SFP Modules 90
Installing SFP Modules 91
Removing SFP Modules 94
Connecting to the 10/100/1000 Ports 96
Connecting to SFP Modules 97
Connecting to Fiber-Optic SFP Modules 97
Installing the Chassis Ground Connection 98
Power Connection Guidelines 100
Guidelines for DC-Powered Systems 101
Guidelines for AC-Powered Systems 101
Preventing Power Loss 101
Activating a DC Power Supply 102
Activating an AC Power Supply 102
Connecting a Router to the Network 103
Connecting Console Cables 103
Connecting to the USB Serial Port Using Microsoft Windows 103
Connecting to the Console Port Using Mac OS X 105
Connecting to the Console Port Using Linux 106
Installing the Cisco USB Device Driver 106
Uninstalling the Cisco USB Device Driver 107
Connecting to the EIA Console Port 108
Connecting a Management Ethernet Cable 110
Installing and Removing SFP and SFP+ Modules 110
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Connecting a USB Flash Device 110
Removing a USB Flash Device 111
Connecting Timing Cables 111
Connecting a Cable to the BITS Interface 111
Connecting Cables to the GPS Interface 112
Connecting a Cable to the Input 10-Mhz or 1-PPS Interface 112
Connecting a Cable to the Output 10-Mhz or 1-PPS Interface 113
Connecting a Cable to the ToD Interface 113
Connecting Ethernet Cables 114
Connecting Cables to SFP Modules 115
Connector and Cable Specifications 115
CHAPTER 4
CHAPTER 5
Initial Configuration 117
Checking Conditions Prior to System Startup 117
Powering Up the Router 118
Verifying the Front Panel LEDs 121
Verifying the Hardware Configuration 121
Checking Hardware and Software Compatibility 122
Configuring the Router at Startup 122
Accessing the CLI Using the Console 122
Configuring Global Parameters 124
Checking the Running Configuration Settings 125
Saving the Running Configuration to NVRAM 125
Safely Powering Off the Router 125
Automatic Shutdown of the Router 126
Troubleshooting 127
Pinouts 127
BITS Port Pinouts 127
GPS Port Pinout 128
Time-of-Day Port Pinouts 128
Alarm Port Pinouts 129
Management Ethernet Port Pinouts 130
USB Console Port Pinouts 130
USB Flash or MEM Port Pinouts 131
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RJ45C Port Pinouts 131
Optical Fiber Specifications 132
Alarm Conditions 132
CHAPTER 6
CHAPTER 7
Site Log 133
Supported PIDs 135
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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, page ix
•
Document Audience, page x
•
Document Organization, page x
•
Document Conventions, page x
•
Obtaining Documentation and Submitting a Service Request, page xii
•
Document Revision History
The following table lists the major changes made to this document.
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Change SummaryDateRelease
First ReleaseNovember 22, 2014Cisco IOS XE Release 3.14.0S
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Document Audience
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.
Document Organization
This guide includes the following chapters and appendix:
Preface
DescriptionTitle
Overview, on page 1
Preparing for Installation, on page 25
Installing the Router, on page 49
Site Log, on page 133
Document Conventions
This document uses the following conventions:
Describes the features and specifications of the Cisco
ASR 920 Series Aggregation Services Routers.
Describes the installation of the Cisco ASR
920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M
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 117
Describes troubleshooting information.Troubleshooting, on page 127
Provides a record of actions related to installing and
maintaining the router.
Describes the supported SFPs.Supported PIDs, on page 135
IndicationConvention
bold font
italic font
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
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x
Commands and keywords and user-entered text
appear in bold font.
Document titles, new or emphasized terms, and
arguments for which you supply values are in italic
font.
Elements in square brackets are optional.[ ]
Preface
Document Conventions
IndicationConvention
{x | y | z }
[ x | y | z ]
string
courier font
< >
[ ]
!, #
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.
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
Tip
Caution
Timesaver
Warning
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.
Means reader be warned. In this situation, you might perform an action that could result in bodily injury.
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Obtaining Documentation and Submitting a Service Request
Preface
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
Warning
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, 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
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, page 1
•
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:
Table 1: Supported Ports on Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Timing PortsType of 10 GE PortType of 1 GE Port10 GE Port1 GE PortASR 920 Sub-family
Built in 4 SFP+24 Fiber424ASR-920-24SZ-IM
ToD and BITSGPS
1 PPS and GPS 10
MHz
NABuilt in 4 SFP+24 Fiber 24 Copper424ASR-920-24SZ-M/ASR-920-24TZ-M
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GigabitEthernet Copper Ports
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
Overview
SFP+ Ports
The GE SFP ports support the following features:
100Base-FX and 1000Base-X SFP modules.
•
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.
Copper based SFPs do not support synchronous ENET operations.Note
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.
•
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Overview
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 interface modules.
Gigabit Ethernet RJ45 Interface Module (A900-IMA8T)
The Gigabit Ethernet RJ45 interface module provides eight Gigabit Ethernet copper ports. The figure below
shows the interface module.
Figure 1: 8 x 1-Gigabit Ethernet RJ45 (Copper) Interface Module
Interface Modules
For more information about installing an RJ45 Gigabit Ethernet module, see the Installing the Interface
•
Module section.
To determine interfaces available on the RJ45 Gigabit Ethernet module, see the Interface Availability
•
on Interface Modules section.
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Interface Modules
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. The following figure shows the interface module.
Figure 2: 1 x 10-Gigabit Ethernet XFP Interface Module
Overview
For more information about installing a 10-Gigabit Ethernet XFP module, see the Installing the Interface
•
Module section.
To determine interfaces available on the 10-Gigabit Ethernet XFP module, see the Interface Availability
•
on Interface Modules section.
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/datasheet-listing.html.
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Overview
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 3: 2X10 Gigabit Ethernet Interface Module
Interface Modules
For more information about installing the 2X10 GE SFP Gigabit Ethernet module, see the Installing the
•
Interface Module section.
To determine interfaces available on the 2X10 GE SFP Gigabit Ethernet module, see the Interface
•
Availability on Interface Modules section.
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/datasheet-listing.html.
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Overview
Interface Modules
8-Port 1 Gigabit Ethernet + 1-Port 10 Gigabit Ethernet SFP+ Combination Interface Module
This 8-port 1 Gigabit Ethernet (RJ45 Copper) interface module with the 1-port 10 Gigabit Ethernet interface
module is a high density combination interface module. This module supports 8 Gigabit Ethernet Copper
ports and 1 10 Gigabit Ethernet SFP+ port.
Figure 4: 8-port 1 GE (RJ45) + 1-port 10 GE SFP+ Interface Module
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Overview
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. The following figure shows the interface module.
Figure 5: 8 x T1/E1 Interface Module
Interface Modules
For more information about installing a 8 Port T1/E1 interface module, see the Installing the Interface
•
Module section.
To determine interfaces available on the 8 Port T1/E1 interface module, see the Interface Availability
•
on Interface Modules section.
For LED indicator information on the 8 Port T1/E1 interface module, see the 8 T1/E1 Interface Module
•
LEDs section.
For RJ45C pinout information on the 8 Port T1/E1 interface module, see the RJ45C Port Pinouts section.
•
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:
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Interface Modules
Table 2: Interface Availability on Supported Interface Modules
Overview
Module
QuantityInterface
Interfaces
in
System
Oversubscribed
Resulting
Front Panel
Ports
Disabled
System
DS3/E3OC3/OC12T1/E110GESFPCu
00042400None
16 to 23No00041681A900-IMA8T
Yes00062401A900-IMA2Z
Yes00052401A900-IMA1X
20 to 23No00842001A900-IMA8D
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Overview
Front and Back Panel
The following figures show the port numbering for the Cisco ASR-920-24SZ-IM Router:
Figure 6: Front Panel of Cisco ASR-920-24SZ-IM Router
Front and Back Panel
4x10GE SFP+12Power Supply 0 (AC or DC)1
2
Alarm port13Power Supply 0 LED (AC or
DC)
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Front and Back Panel
Overview
USB Console port14Power Supply 1 (AC or DC3
4
DC)
11
module
Figure 7: Back Panel of Cisco ASR-920-24SZ-IM Router
USB Memory port15Power Supply 1 LED (AC or
16RJ-48 slot for ToD5
Interface Module (IM) power
LED
1 PPS co-axial connector17RJ-48 slot for BITS6
10 MHz co-axial connector18Console port (TIA/EIA-232F)7
IM Status LED19Auxiliary Console port8
System Status LED20Management port9
Board power LED2124x1GE SFP Fiber ports10
--Slot for ports on the interface
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Fan status LED2Grounding lugs1
Overview
Front and Back Panel
Figure 8: Front Panel of Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router
8Power Supply 0 (AC or DC)1
24x1GE SFP Fiber (Cisco
ASR-920-24SZ-M)
24x1GE SFP Copper (Cisco
ASR-920-24TZ-M)
2
4x10GE SFP+9Power Supply 0 LED (AC or
DC)
USB Memory port10Power Supply 1 (AC or DC)3
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Specifications
Overview
4
DC)
Figure 9: Back Panel of Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router
Alarm port11Power Supply 1 LED (AC or
USB Console port12Console port (TIA/EIA-232F)5
Board power LED13Management port6
System Status LED14Auxiliary Console port7
Fan status LED2Grounding lugs1
Specifications
The table below 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 3: Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router Specifications
ASR-920-24SZ-M, ASR-920-24TZ-MASR-920-24SZ-IMSpecification
DimensionWidth x Depth x Height
Weight
17.5 x 9.43 x 2.6 inches
Note
Dimensions exclude the
PSU and IM handle.
7.08 kg
(inclusive of rack brackets,
twenty-four SFP and four SFP+
optics, two AC PSUs and an IM
card)
17.5 x 9.43 x 1.72 inches
Note
Dimensions exclude the
PSU and IM handle.
ASR-920-24SZ-M: 5.53 kg
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)
One RUOne and a half RURack Unit
Front to backFront to back and side to backAirflow
Front cable accessFront cable accessCable access
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Overview
Specifications
ASR-920-24SZ-M, ASR-920-24TZ-MASR-920-24SZ-IMSpecification
64 Gbps64 GbpsSystem throughput
NoneInterface moduleModularity
Power Supply
YesYesRedundant
YesYesAC
250 W Maximum250 W MaximumPower Specification
YesYesDC
250 W Maximum250 W MaximumPower Specification
System Power Consumption
Power Dissipation
Operating Temperature/Humidity
Alarms
180 W Maximum, 130 W Typical
(including installed IM)
614.18 BTU/hr Maximum, 443.57
BTU/hr Typical
(including installed IM)
–40º C to 70º C
5-95% RH
4 alarm dry contact inputs
•
(normally open)
LED indicators for critical,
•
major and minor alarms
ASR-920-24SZ-M: 145 W
Maximum, 110 W
TypicalASR-920-24TZ-M: 130 W
Maximum, 100 W Typical
ASR-920-24SZ-M: 494.76 BTU/hr
Maximum, 375.33 BTU/hr Typical
ASR-920-24TZ-M: Max: 443.57
BTU/hr Maximum, 341.21 BTU/hr
Typical
–40º C to 70º C
5-95% RH
4 alarm dry contact inputs
•
(normally open)
LED indicators for critical,
•
major and minor alarms
NoneSupported through IM cardTDM Support
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External Interfaces
Overview
ASR-920-24SZ-M, ASR-920-24TZ-MASR-920-24SZ-IMSpecification
Mounting option
Port Configuration
Port Numbering
LEDs
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 section.
card ports
24x1G SFP – Port [0:23]
4x10G SFP+ – Port [24:27]
Data Port LEDsSystem Status
LEDManagement Port LEDPSU
LEDFan Tray LED
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 section.
24x1G and 4x10G ports24x1G and 4x10G ports and IM
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]
No combo portsNo combo portsCombo Ports
System Status LEDManagement
Port LEDPSU LEDFan Tray LED
Temperature Sensors
Timing Interfaces
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)
Five temperature sensors for Board
Two temperature sensors for each
PSU
External ports for BITS/ToDSMA
ports for 1 PPS and 10 M1588v2
and SyncE feature supported
Five temperature sensors for Board
Two temperature sensors for each
PSU
No external timing ports1588v2
and SyncE feature supported
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Overview
• GE SFP ports (copper)—supports 10/100/1000 operation (ASR-920-24TZ-M)
• 10GE SFP+—supports 10G mode.
Network Timing Interfaces
Network timing interface is available only on Cisco ASR-920-24SZ-IM Router.Note
• 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.
External Interfaces
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.
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:
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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External Interfaces
Overview
Table 4: Power Supply Specification
DCACSpecification
Note
Note
Voltage
Current
100 V – 240 V, 50/60Hz
2.6 A through a standard C16 type
receptacle
-48/-60 V or 24 V
5.5 A –48/–60 V
11 A –24 V
through a two-position terminal
block
260 W (ASR-920-PWR-D)260 W (ASR-920-PWR-A)Input Power
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: For
-48/-60 V: UVP= -36 Vdc and OVP = -72 Vdc For 24 V: UVP =18 Vdc and OVP = 32 Vdc
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.
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Overview
External Interfaces
Note
The digital code signing functionality validates the integrity and authenticity of the ROMMON image
before booting it.
Table 5: PWR and STAT LED Indications
OffAmber
AmberFlashing Amber and Green
alternatively
OffFlashing Amber and Green
alternatively
Power in the system is all right
and FPGA configuration is
taking place.
FPGA Image Validation Error.RedAmber
Upgrade FPGA image error,
continuing with Golden FPGA
image.
FPGA configuration successful
and Digital code signing
successfully validated FPGA
image. Digital code signing
passed the control to
Microloader to boot
ROMMON.
CommentIndicationSTAT LED statePWR LED State
Permanent Amber/Off indicates
FPGA configuration failure.
System is in unresponsive state.
No console messages.
—
—
alternatively
RedFlashing Amber and Green
Digital code signing reported
failure in ROMMON image
System is in unresponsive state.
No console messages.
validation.
ZTP process has begun.Flashing AmberGreen
Both LEDs turn Green once
provisioning is complete.
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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External Interfaces
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 6: CPU Management Port LED Indication
Overview
IndicationLED StateLED
Link up in 1000 MbpsGreenLeft
Activity in 1000 MbpsBlinking Green
Link up in 100/10 MbpsAmber/Orange
Activity in 100/10 MbpsBlinking Amber/Orange
Link downOff
SFP LEDs
Link up in full duplexGreenRight
Link up in half duplexOff
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 7: SFP Port LED Indication
IndicationLED StateLED
GreenLabeled same as the SFP port
number
Blinking Green
Link up in
1000Base-X/100Base-FX
Activity in 1000
Base-X/100Base-FX
Fault/ErrorYellow
Link downOff
SFP+ LEDs
Each SFP+ port has an LED indicator.
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