SMART Embedded Computing AXP1440-C07 Installation And Use Manual page 26

Safety Notes
Power Feed
Personal Injury
Touching the power feed with metallic objects on your hands, wrists, or hanging from your
neck may lead to severe personal injury through electric shock and burning when working
at the power feed or power input cables. Be extremely careful when using electrically
conductive tools near the PSUs/PEMs.
Short Circuits or Personal Injury
Make sure the power feeds you plan to remove or attach are powered off and cannot be
switched on while you are working.
Make sure that all power feeds to the chassis are not energized. Be careful with the tools
used to prevent a a short circuit.
Product Damage
Improper cabling damages your product. Take extreme care not to reverse the polarity
when connecting the power cable.
Fan Trays
System Damage
Insufficient cooling may damage the system.
During normal operation, the cooling system is designed to provide sufficient cooling with
a single fan tray. Under poor operating conditions or a failure of remaining fans, the cooling
capacity of a single fan tray may not suffice.
Removing the single operating fan tray can lead to overheating very quickly. "
Make sure that there is always one operating fan tray present in the system.
When servicing, replace the fan tray (or fan modules) without delay.
Fan Replacement
When a fan is taken out of operation or is removed during a replacement procedure, system
management software may compensate for the loss by increasing the speed of any
remaining fans.
Running the fans at high speed for a long time may shorten the life of the fans and may
exceed allowable acoustic noise limits.
Replace the fan tray (or fan modules) without delay.
24 AXP1440-C07 Installation and Use (6806800V18A)
Safety Notes