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
Cisco ASR-920-20SZ-M Aggregation Services Router Hardware Installation Guide
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