AudioCodes Mediant 1000B Panduan Pengaturan Cepat - Halaman 7
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Safety Precautions
This device is an indoor unit and therefore, must not be installed outdoors. Ethernet cabling must be
routed only indoors and must not exit the building.
The device must be installed and serviced only by qualified service personnel.
Do not open or dismantle the device.
Do not expose the device to water or moisture.
Make sure the device is installed in a well-ventilated location to avoid over heating of internal
components and subsequent damage.
Make sure that all unoccupied module slots are covered with blank panels to ensure optimal airflow
pressure inside the chassis.
Do not place any object on top of the device and make sure that sufficient clearance from the top and
sides are maintained to ensure proper airflow to avoid over heating of internal components.
Operate the device in an ambient temperature (Tma) that does not exceed 40°C (104°F).
The device must be installed only in restricted access locations.
Connect FXO, E1/T1, and BRI interfaces utilizing 26-AWG minimum wiring.
Use only the supplied AC power cord for connection to the power source.
When using only one Power Supply module, the second AC power socket on the rear panel is covered
with a plastic sticker. Please do not remove the sticker and connect anything to this power socket.
Remove the sticker only when the device is ordered with two Power Supply modules.
When using two Power Supply modules, connect each Power Supply module to a different AC supply
circuit and make sure that the two AC power sources have the same ground potential.
The device must be connected to an electrical socket-outlet providing a protective earthing connection.
Operate the device only from the type of power source indicated on the chassis.
Installation of the device must be in accordance with national wiring codes and conform to local
regulations.
The device must be installed only in telecommunication sites in compliance with ETS 300-253
requirements "Earthing and Bonding of Telecommunication Equipment in Telecommunication
Centers".
Prior to installation, earth loop impedance test must be performed by a certified electrician to ensure
grounding suitability at the power outlet intended to feed the device. It is essential that impedance is
kept below 0.5 ohms.
The device includes an integrated secondary surge protection, but does not provide primary telecom
protection! When the FXS / FXO lines are routed outside the building, additional protection - usually a
350V three-electrode Gas Discharge Tube (GDT) as described in ITU-T K.44 - must be provided at the
entry point of the telecom wires into the building (usually on the main distribution frame / MDF), in
conjunction with proper grounding. The center pin of the GDT (MDF grounding bar) must be connected
to the equipotential grounding bus bar of the Telecommunication room.
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