Troubleshooting guide

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not allow hair or other objects near the ventilation slots. They might be sucked into the
Switch, resulting in injury.
When moving the Switch, do not hold the handle of an optional module.
• When moving the Switch, do not hold the handle of a fan unit or power supply unit. The
handle might come off, resulting in the device falling and possibly causing injury.
Moreover, the fan unit or power supply unit might become damaged, resulting in a fire or
electric shock.
When moving a Switch, unplug all cables.
• Before moving a Switch, you must turn it off and unplug all cables. Failure to do so might
cause the Switch or cable to become deformed, or might damage the Switch, resulting in
fire or electric shock.
Do not drop optional modules.
• Handle the optional modules with care to avoid dropping them. Dropping them might
cause injury.
• A DC power supply unit weighs 5.6 kg and is 163 mm long. When removing a power
supply unit from a Switch, hold the power supply unit tightly. Pulling a power supply unit
carelessly from a Switch might cause the power supply unit to fall, resulting in injury. The
following label is attached to a DC power supply unit.
Do not touch the inside of the Switch with your hands.
• Do not carelessly put your hands inside the Switch. The frame and components might
cause injury.
Be careful of heat when removing a management and switching unit or
network interface unit.
• Some components installed on a management and switching unit or network interface unit
might be hot. Do not touch the installed components. Doing so could result in burns.
When removing a fan unit, do not put your hands near the rotating fan.
• The fan might be rotating just after it is removed. Do not put hands or fingers near the fan
while it is rotating. Doing so could result in injury. The following label is attached to a fan
unit.
Handle the power cable carefully.
• Do not place the power cable near a heat-generating apparatus. The heat could melt the