IBM 86473AX User Manual - Page 12

Safety Precautions, Rack mount safety considerations - computers

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4 LCM Installer and User Guide Safety Precautions To avoid potential video and/or keyboard problems when using IBM products: • If the building has 3-phase AC power, ensure that the computer and monitor are on the same phase. For best results, they should be on the same circuit. • Use only IBM-supplied cable to connect computers and KVM switches. IBM warranties do not apply to damage resulting from user-supplied cable. To avoid potentially fatal shock hazard and possible damage to equipment, please observe the following precautions: • Do not use a 2-wire extension cord in any IBM product configuration. • Test AC outlets at the computer and monitor for proper polarity and grounding. • Use only with grounded outlets at both the computer and monitor. When using a backup uninterruptible power supply, power the computer, the monitor and the LCM off the supply. NOTE: The AC inlet is the main disconnect. Rack mount safety considerations • Elevated Ambient Temperature: If installed in a closed rack assembly, the operation temperature of the rack environment may be greater than room ambient. Use care not to exceed the rated maximum ambient temperature of the unit. • Reduced Air Flow: Installation of the equipment in a rack should be such that the amount of airflow required for safe operation of the equipment is not compromised. • Mechanical Loading: Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading. • Circuit Overloading: Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring. Consider equipment nameplate ratings for maximum current. • Reliable Earthing: Reliable earthing of rack mounted equipment should be maintained. Pay particular attention to supply connections other than direct connections to the branch circuit (for example, use of power strips).

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4
LCM Installer and User Guide
Safety Precautions
To avoid potential video and/or keyboard problems when using IBM products:
•
If the building has 3-phase AC power, ensure that the computer and monitor
are on the same phase. For best results, they should be on the same circuit.
•
Use only IBM-supplied cable to connect computers and KVM switches. IBM
warranties do not apply to damage resulting from user-supplied cable.
To avoid potentially fatal shock hazard and possible damage to equipment,
please observe the following precautions:
•
Do not use a 2-wire extension cord in any IBM product configuration.
•
Test AC outlets at the computer and monitor for proper polarity and grounding.
•
Use only with grounded outlets at both the computer and monitor. When
using a backup uninterruptible power supply, power the computer, the
monitor and the LCM off the supply.
NOTE:
The AC inlet is the main disconnect.
Rack mount safety considerations
•
Elevated Ambient Temperature: If installed in a closed rack assembly, the
operation temperature of the rack environment may be greater than room
ambient. Use care not to exceed the rated maximum ambient temperature
of the unit.
•
Reduced Air Flow: Installation of the equipment in a rack should be such
that the amount of airflow required for safe operation of the equipment is
not compromised.
•
Mechanical Loading: Mounting of the equipment in the rack should be such
that a hazardous condition is not achieved due to uneven mechanical loading.
•
Circuit Overloading: Consideration should be given to the connection of
the equipment to the supply circuit and the effect that overloading of
circuits might have on overcurrent protection and supply wiring. Consider
equipment nameplate ratings for maximum current.
•
Reliable Earthing: Reliable earthing of rack mounted equipment should be
maintained. Pay particular attention to supply connections other than
direct connections to the branch circuit (for example, use of power strips).