Motorola ATCA-717 - Manual (Page 21)

PENT/ATCA−717 21
Damage of Blade and Additional Devices and Modules
Incorrect installation of additional devices or modules may damage the blade or the
additional devices or modules.
Before installing or removing an additional device or module, read the respective
documentation
Operation
Blade damage
Blade surface
High humidity and condensation on the blade surface causes short circuits.
Do not operate the blade outside the specified environmental limits. Make sure the
blade is completely dry and there is no moisture on any surface before applying power.
Do not operate the blade below 0
°C.
Blade Overheating and Blade Damage
Operating the blade without forced air cooling may lead to blade overheating and thus
blade damage.
When operating the blade, make sure that forced air cooling is available in the shelf.
When operating the blade in areas of electromagnetic radiation ensure that the blade is
bolted on the system and the system is shielded by enclosure.
Injuries or short circuits
Blade or power supply
In case the ORing diodes of the blade fail, the blade may trigger a short circuit between
input line A and input line B so that line A remains powered even if it is disconnected
from the power supply circuit (and vice versa).
To avoid damage or injuries, always check that there is no more voltage on the line that
has been disconnected before continuing your work.
Switch Settings
Blade Malfunction
Switches marked as ’reserved’ might carry production−related functions and can cause
the blade to malfunction if their setting is changed.
Therefore, do not change settings of switches marked as ’reserved’. The setting of
switches which are not marked as ’reserved’ has to be checked and changed before
blade installation.
Blade Damage
Setting/resetting the switches during operation can cause blade damage.
Therefore, check and change switch settings before you install the blade.