CONTENTS
Preparing for Installation 1
CHAPTER 1
Overview 1
Safety Guidelines 3
General Safety Guidelines 3
Compliance and Safety Information 4
Laser Safety 4
Energy Hazard 4
Preventing Electrostatic Discharge Damage 4
Lifting Guidelines 5
Site Requirement Guidelines 6
Site Layout and Equipment Dimensions 6
Site Wiring Guidelines 8
Chassis Air Flow Guidelines 9
Rack-Mounting and Air Flow Clearance Guidelines 11
Telco 2-Post Rack 12
Open 4-Post Rack 14
Enclosed Rack with Perforated Sides 14
Air Flow Guidelines for Enclosed Rack Installation 15
Temperature and Humidity Guidelines 16
Power Connection Guidelines 17
AC Powered Routers 17
DC Powered Router 30
NEBS Supplemental Unit Bonding and Grounding Guidelines 34
Port Connection Guidelines 35
Console Port and Auxiliary Port Connection Guidelines 38
Console Port Signals 38
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
iii