It is important to proceed through the installation process in the following order:
See General Safety Guidelines for Juniper Networks Hardware Equipment.
See Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet or Installing the T640 Mounting Hardware for an Open-Frame Rack.
See Mounting the T640 Chassis Using a Mechanical Lift or Installing the T640 Chassis in the Rack Manually.
See Connecting the T640 Router to a Management Console or Auxiliary Device.