NEC IP8800/S2400 Series Troubleshooting Manual page 41

■ Grounding is required.
• Leak current of up to 3.5mA flows for each device. For connecting to the AC power supply, be sure to use the
grounded outlet. If the power supply is used without grounding, an electric shock may be caused and failures
may occur due to electric noise.
• For connecting the DC power supply, be sure to connect the grounding terminal. If the power supply is used
without grounding, an electric shock may be caused and failures may occur due to electric noise.
■ Installing/uninstalling of the DC power cable must be performed by the trained
engineer or maintenance personnel.
• Installing/uninstalling of the DC power cable must be performed by the trained engineer or maintenance
personnel. DC power cable is connected to the power supply via a terminal. Therefore, inadvertent handling
of the DC power cable may result in fire disasters or electric shock.
■ Before installing or removing a DC power cable, turn off the breaker on power supply
facilities.
• Before installing or removing a DC power cable, turn off the breaker on power supply facilities. Operation with
the breaker on may cause electric shock.
■ Attach insulation covers on the 0V and -48V terminals of a DC power cable.
• Attach insulation covers on the 0V and -48V terminals of a DC power cable (the side of which connects to
power supply facilities). Operation without insulation covers may cause electric shock.
■ When using the DC power supply, do not leave the terminal board uncovered.
• When using the DC power supply, be sure to attach the cover to the terminal board after connecting the power
cable. Operating it without the terminal board cover can cause an electric shock.
■ Do not touch the potential tap.
• The power supply is provided with the potential tap. However, this tap is used for inspection at shipment.
Customer should not use this tap. Do not insert a sharp material such as pin or clip into the potential tap. Fire
disasters or electric shock may be caused.
Safety Guide [IP8800/S6300]
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