NEC IP8800/S2400 Series Troubleshooting Manual page 48

Safety Guide [IP8800/S6300]
■ Do not power off the device during software update (when the ppupdate command
is being executed).
• By the execution of the ppupdate command, the device automatically restarts. Never power off the device
during restart (until the STATUS LED on the management and switching unit changes from blinking in green
into steady light). The device may be damaged.
■ Handle a memory card with care.
• Do not forcedly push or flip a memory card to insert. Do not forcedly pull out a locked memory card to remove.
Otherwise, the connector of the memory card slot may be damaged.
• Remove a memory card to reposition the device. Moving the device may cause force against the memory card,
which can damage the connector of the memory card slot.
■ Do not remove the memory card or disconnect power while the ACC LED is lit.
• Lighting of the ACC LED on the management and switching unit indicates that the memory card is being
accessed. Do not remove the memory card or disconnect power during access. The memory card may be
damaged. Some commands require a considerable time before completing access to the memory card after
the entry of the commands. Ensure that access is completed and then remove the memory card or disconnect
power.
■ Do not attach a label or the like to the transceivers.
• The transceiver has a label indicating its manufacturer and that it is our standard supply. However, this label is
attached to the part that does not obstruct heat radiation from the transceiver or the mechanism preventing
slip-off from the cage. If a label or the like is attached to such an obstructing part, the transceiver or the network
interface module may be damaged.
■ When installing/uninstalling the power cable, turn off the power switch.
• To install or uninstall the power cable, turn off the switch on the power supply to be installed or uninstalled.
■ When installing/uninstalling the power cable, turn off the power switch.
• To install or uninstall the power cable, turn off the switch on the power supply to be installed or uninstalled.
■ When replacing the fan unit while the device powered on, complete the task within
the specified duration of time.
• When replacing the fan unit while the device powered on, complete the entire task from removal to installation
within one minute. If it takes more than one minute, other modules may be affected by temperature rise in the
device.
■ For carrying or packaging the device and optional component, use an antistatic wrist
strap.
• Use an antistatic wrist strap. If you handle the device without the antistatic wrist strap, the device can be
xxxviii
CAUTION