•
The plug of power supply cordset is used as the main disconnect device. Ensure that the AC outlet is
located near the equipment and is easily accessible.
•
Slots and openings in the front, back and bottom of the cabinet are provided for ventilation; to protect it
from overheating, these openings must not be blocked or covered. The openings should never be blocked
by placing the product on a bed, sofa, rug, or other similar surface while in use. The product should never
be placed near or over a radiator or other heat source. This product should not be placed in a sealed
environment unless proper ventilation is provided.
•
Make sure that the surface behind the PBX is flat and free of obstacles, so that the openings on the back
of the PBX will not be blocked.
•
When this product is no longer in use, make sure to detach it from the rack or wall.
•
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.
•
When the PBX is mounted on a 19-inch rack, make sure that the installation of the unit does not cause the
temperature of the rack to exceed its limit.
•
Make sure to install all necessary optional service cards in the PBX before performing the wall mounting
procedure. If it is necessary to install or remove a card, make sure to detach the PBX from the wall before
installing or removing the card.
•
When driving the screws into the wall, be careful to avoid touching any metal laths, wire laths or plates in
the wall.
•
When opening the top cover, the power switch must be turned off.
•
For safety reasons, close the top cover and tighten the screws before operating the PBX.
•
If the PBX is not installed properly using the securing correct methods, the PBX may fall causing serious
damage.
•
Performing surge protection is essential. Make sure to follow the instructions in "4.2.11 Surge Protector
Installation".
•
It is strongly recommended to use SSL encrypted communication when the PC is accessing the PBX via
the Internet. To use SSL encryption, routers must have a port set up for https communication.
•
Avoid using the same AC outlet for computers and other office equipment, as noise generated by such
equipment may hamper system performance or interrupt the system.
•
Unplug the system from its power source when wiring, and plug the system back in only after all wiring is
completed.
•
Trunks should be installed with surge protectors. For details, refer to "4.2.11 Surge Protector
Installation".
•
When installing or removing the optional service cards, the power switch must be turned off.
•
For earthing wire, green-and-yellow insulation is required, and the cross-sectional area of the conductor
must be more than 0.75 mm
2
or 18 AWG.
•
When connecting a PRI30/E1 card to the trunk, connect through an NT1; do not connect to the U interface
of the trunk directly.
•
PRI ports of PRI30/E1 card is SELV ports and should only be connected to SELV services.
•
The MOH port and Pager port are SELV ports and should only be connected to approved SELV devices,
or via a Line Isolation Unit with a Telecommunications Compliance Label.
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.
18
Installation Manual
1.1 For Your Safety
Summary of Contents for KX-NS300
Page 92: ...4 Hook the main unit on the screw heads 92 Installation Manual 4 2 10 Wall Mounting...
Page 150: ...150 Installation Manual 4 13 Starting the KX NS300...
Page 248: ...248 Installation Manual 5 11 Automatic Configuration of Mailboxes...
Page 252: ...252 Installation Manual 6 1 Methods of Stacking Expansion Units...
Page 294: ...294 Installation Manual 8 5 Port Security...
Page 298: ...298 Installation Manual 9 2 System Prompt Languages...
Page 299: ......