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SCB LEDs ................................................................................................20
Fan LEDs ................................................................................................20
Alarm Relay Contacts ..............................................................................21
Power Supplies ..............................................................................................21
AC Power Supply ....................................................................................21
AC Power Supply LEDs .....................................................................22
DC Power Supply ....................................................................................23
DC Power Supply Configurations for the MX240 Router ...................23
DC Power Supply LEDs .....................................................................24
Cooling System .............................................................................................24
Part 2 Setting Up the Router
Chapter 3 Preparing the Site for Router Installation 29
Site Preparation Checklist ..............................................................................29
Cabinet Requirements ...................................................................................30
Cabinet Size and Clearance Requirements ..............................................30
Cabinet Airflow Requirements ................................................................30
Rack Requirements .......................................................................................31
Rack Size and Strength ...........................................................................31
Spacing of Mounting Bracket Holes .........................................................32
Connection to Building Structure ............................................................32
Clearance Requirements for Airflow and Hardware Maintenance ..................32
Chapter 4 Installation Overview 35
Chapter 5 Unpacking the Router 37
Tools and Parts Required ..............................................................................37
Unpacking the Router ....................................................................................37
Verifying Parts Received ................................................................................38
Chapter 6 Installing the Mounting Hardware 41
Installing the Mounting Hardware for a Rack or Cabinet ...............................41
Moving the Mounting Brackets for Center-Mounting the Router ....................43
Chapter 7 Installing the Router 45
Safety Requirements, Warnings, and Guidelines ...........................................45
Installing the Router Using a Mechanical Lift .................................................45
Tools Required ........................................................................................46
Installing the Router Using a Lift .............................................................46
vi ■ Table of Contents
MX240 Ethernet Services Router Hardware Guide