Emerson ATCA-F120 Installation And Use Manual page 49

When the blue LED is switched OFF and the green LED "OK" is switched ON, this
indicates that the blade`s payload has been powered up and that the blade is
active.
7. Connect cables to the face plate, if applicable.
2.6.2 Removing the Blade
This section describes how to remove the blade from an AdvancedTCA system.
Damage of Circuits
Electrostatic discharge and incorrect blade installation and removal can damage circuits or
shorten their life.
Before touching the blade or electronic components, make sure that you are working in an
ESD-safe environment.
Damage of the blade
Incorrect installation of the blade can cause damage of the blade,
Only use handles when installing/removing the blade to avoid damage/deformation to the
face plate and/or PCB.
ATCA-F120 Installation and Use (6806800D06F)
Hardware Preparation and Installation
49