Panasonic KX-NS500 Getting Started page 6

1.2 For Your Safety
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Proper earthing (connection to earth) is very important to reduce the risk to the user of electrocution or to
protect the PBX from the bad effects of external noise in the case of a lightning strike.
•
The earthing wire of the AC cable has an effect against external noise and lightning strikes, but it may not
be enough to protect the PBX and to ensure electromagnetic compatibility. A permanent connection
between earth and the earth terminal of the PBX must be made.
•
Make sure that the AC outlet is properly earthed, then securely connect the 3-pin AC plug including the
earthed pin.
•
When installing or removing the optional service cards, do not put pressure on any parts of the mother
board. Doing so may result in damage to the PBX.
•
Once you have started the PBX, if you unplug the PBX, do not initialise it again as described in "System
Initialisation Procedure". Otherwise, your programmed data will be cleared.
•
Before opening the top cover, the AC power cord must be removed from the AC inlet.
•
Disconnect the AC power source before servicing the equipment.
•
For safety reasons, close the top cover and tighten the screws before operating the PBX.
•
For earthing wire, green-and-yellow insulation is required, and the cross-sectional area of the conductor
must be more than 0.75 mm
•
Use only the AC power cord included with the PBX. A certified power supply cord has to be used with this
equipment. The relevant national installation and/or equipment regulations shall be considered. A certified
power supply cord not lighter than ordinary polyvinyl chloride flexible cord according to IEC 60227
(designation H05VV-F 3G 0.75 mm²) shall be used.
•
Before touching the product (PBX, cards, etc.), discharge static electricity by touching ground or wearing
an earthing strap. Failure to do so may cause the PBX to malfunction due to static electricity.
•
When installing or removing the optional service cards, the power switch must be turned off, and the AC
power cord must be removed from the AC inlet.
•
The power supply cord is used as the main disconnect device. Ensure that the AC outlet is located near
the equipment and is easily accessible.
WARNING
This is a class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
6 Getting Started
WARNING
CAUTION
or 18 AWG.
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