Cisco ASR-920-20SZ-M Manual

Cisco ASR-920-20SZ-M Aggregation Services Router Hardware
Installation Guide
First Published: 2018-09-10
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: [phone]
800 553-NETS (6387)
Fax: [phone]

©2018 Cisco Systems, Inc. All rights reserved.

CONTENTS
Safety Warnings 1
CHAPTER 1
Standard Warning Statements 1
Safety Guidelines for Personal Safety and Equipment Protection 2
Safety Precautions for Module Installation and Removal 3
Safety with Electricity 3
Power Supply Considerations 6
Power Connection Guidelines 6
Guidelines for DC-Powered Systems 7
Guidelines for AC-Powered Systems 7
Prevent Power Loss 7
Preventing ESD Damage 7
Overview 9
CHAPTER 2
Features 9
GigabitEthernet Copper Ports 10
GE SFP Ports 11
SFP+ Ports 11
External Interfaces 11
Network Interfaces 11
Network Timing Interfaces 11
External Alarm Inputs 12
Console 12
Auxiliary Console 12
USB Console 12
USB Memory 12
Online Insertion and Removal 13
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Power Supply and Fans 13
Licensing 14
Prepare for Installation 15
CHAPTER 3
Site Planning 15
General Precautions 15
Site Planning Checklist 15
Site Selection Guidelines 16
Airflow for Site Planning 16
Environmental Requirements 16
Physical Characteristics 17
Airflow Guidelines 17
Floor Loading Considerations 18
Site Power Guidelines 18
Electrical Circuit Requirements 19
Site Cabling Guidelines 19
Asynchronous Terminal Connections 19
Interference Considerations 19
Rack-Mounting Guidelines 20
Precautions for Rack-Mounting 20
Rack Selection Guidelines 20
Receive the Device 21
Unpack and Verify Shipped Contents 23
Tools and Equipment 24
Install the Router 25
CHAPTER 4
Rack Compatibility 25
Rack Types 25
Set up Device on Rack or Wall 27
Rack Mount 27
Install Rack Brackets 27
Set up Device on Rack 32
Attaching the Cable Guides 33
Wall Mount 34
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Contents

Install Wall Brackets 34
Wall Mount the Device 35
Ground the Device 36
Connect Power Cables 37
Activate an AC Power Supply 38
Attach Cables to the DC Power Supply 40
Power On the DC Power Supply 41
Connect Gigabit Ethernet Ports 41
Connect SFP Modules 42
Install SFP Modules 42
Remove SFP Modules 43
Connect Fiber Optic SFP Modules 43
Connect RJ-45 Connector 44
Connect Chassis to Network 44
Connecting Console Cables 44
Connecting to the USB Serial Port Using Microsoft Windows 45
Connecting to the Console Port Using Mac OS X 46
Connecting to the Console Port Using Linux 46
Installing the Cisco USB Device Driver 47
Uninstalling the Cisco USB Device Driver 47
Connecting a USB Flash Device 48
Removing a USB Flash Device 48
Connecting Timing Cables 49
Connecting a Cable to the BITS Interface 49
Connecting Cables to the GPS Interface 49
Connect to EIA Console Port 50
Connect a Management Ethernet Cable 51
Configure the Device 53
CHAPTER 5
Power up the Device 53
Verify the Front Panel LEDs 53
Verify the Hardware Configuration 54
Check Hardware and Software Compatibility 54
Configure Device at Startup 54
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Access the CLI Using the Console 55
Configure Global Parameters 55
Check the Running Configuration Settings 56
Save the Running Configuration to NVRAM 57
Safely Power Down the Device 57
Replace the Power Supply 59
CHAPTER 6
Remove the DC Power Supply 59
Install the DC Power Supply 60
Remove the AC Power Supply 61
Install the AC Power Supply 62
Troubleshooting Aids 65
CHAPTER 7
Verify Pinout 65
BITS Port Pinouts 65
GPS Port Pinouts 66
Time-of-Day Port Pinouts 66
Alarm Port Pinouts 67
Management Ethernet Port Pinouts 67
USB Console Port Pinouts 68
USB MEM Port Pinouts 68
Check Optical Fiber Specifications 69
Check Alarm Conditions 69
Check LED Indicators 69
PWR and STAT LEDs 70
CPU Management Port LEDs 70
SFP LEDs 71
SFP+ LEDs 71
RJ-45 LEDs 72
Power Supply Unit LEDs 72
System–Interface LED Behavior 72
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Contents

CHAPTER 1
Safety Warnings
This handout topic lists the safety warnings necessary for handling this product. Before you install or service
the chassis, review these safety warnings to avoid injuring yourself or damaging the equipment.
For a complete list of translated safety warnings, see the Regulatory Compliance and Safety Information for
the Cisco ASR 920 Series Aggregation Services Router document.
The safety warnings are grouped under the following sections:
•Standard Warning Statements, on page 1
•Safety Guidelines for Personal Safety and Equipment Protection, on page 2
•Safety Precautions for Module Installation and Removal, on page 3
•Safety with Electricity, on page 3
•Power Supply Considerations, on page 6
•Preventing ESD Damage, on page 7
Standard Warning Statements
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to
ensure that the system remains stable. The following guidelines are provided to ensure your safety: This unit
should be mounted at the bottom of the rack if it is the only unit in the rack. When mounting this unit in a
partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of
the rack. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack. Statement 1006
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be accessed only
through the use of a special tool, lock and key, or other means of security. Statement 1017
Warning
Ultimate disposal of this product should be handled according to all national laws and regulations. Statement
1040
Warning
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To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended
ambient temperature of 158°F (70°C). Statement 1047
Warning
The chassis should be mounted on a rack that is permanently affixed to the building. Statement 1049
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. Statement 1071
Warning
This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should
be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use
type. Statement 294
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures. Statement 340
Warning
This equipment is in compliance with the essential requirements and other relevant provisions of Directive
1999/5/EC. Statement 287
Warning
Suitable for mounting on and over a concrete or other non-combustible surface only. Statement 345
Warning
SafetyGuidelinesforPersonalSafety andEquipment Protection
The following guidelines ensure your safety and protect the equipment. This list does not include all the
potentially hazardous situations. Therefore, you must be alert.
• Before moving the system, always disconnect all power cords and interface cables.
• Never assume that power is disconnected from a circuit; always check.
• Before and after installation, keep the chassis area clean 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.
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Safety Warnings
Safety Guidelines for Personal Safety and Equipment Protection

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
• Do not wear loose clothing that may get caught in the chassis.
• When working under conditions that may be hazardous to your eyes, wear safety glasses.
Safety Precautions for Module Installation and Removal
Be sure to observe the following safety precautions when you work on the router.
Class 1 laser product. Statement 1008
Warning
Do not stare into the beam or view it directly with optical instruments. Statement 1011
Warning
Invisible laser radiation present. Statement 1016
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments. Statement 1051
Warning
Safety with Electricity
Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect
the power at the circuit breaker on DC units. Statement 12
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces,
and watches). Metal objects will heat up when connected to power and ground and can cause serious burns
or weld the metal object to the terminals. Statement 43
Warning
Avoid using or servicing any equipment that has outdoor connections during an electrical storm.
There may be a risk of electric shock from lightning. Statement 1088
Warning
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Safety Warnings
Safety Precautions for Module Installation and Removal

Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. For a DC installation,
ensure that the branch circuit breaker is rated a maximum 15A for DC systems. For AC systems, 15A for
voltages greater than 200Vac; 20A for voltages below 127Vac. Statement 1005
Warning
Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
Warning
The plug-socket combination must be accessible at all times, because it serves as the main disconnecting
device. Statement 1019
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage
(TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and
WAN ports both use RJ45 connectors. Use caution when connecting cables. Statement 1021
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022
Warning
To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord. Statement 1023
Warning
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
Warning
Use copper conductors only. Statement 1025
Warning
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Safety Warnings
Safety with Electricity