FONtevo COMpact 4000 Notice D'utilisation page 28

Important Information
• Disconnect the power plug of the PBX and its accessories before instructing a qualified
electrician to open the casing, to install the expansion modules, or to switch or connect
equipment. Also disconnect the device from additional power sources (e. g. a UPS, if
installed).
• Wait for the discharge of any capacitor in the device after disconnecting it from the main
power supply. The electrolytic capacitors in the switch-mode power supply and the ringer
voltage circuitry can remain charged for a long time.
• Do not make any structural changes to the device.
• For some installation and maintenance work it is necessary to open the PBX while it is in
operation (qualified electrician only). Make sure that the PBX is never left unattended
while running with an open casing.
• Ensure you comply with the relevant regulations when handling mains voltage and
devices attached to the mains.
• Only operate the device when the casing is closed.
• Only operate the device when it is mounted on the wall.
Warning: Liquid that penetrates the casing can cause life-threatening electric shocks
and can damage or destroy the PBX.
• Only operate the PBX in closed, dry rooms.
• Only clean the device with a slightly damp cloth or an anti-static cloth.
• When cleaning the casing, make sure that no liquid enters the casing.
Warning: Damaged connection lines, or damage to the casing, or the PBX, can cause
life-threatening electric shocks.
• Do not put a damaged PBX into operation.
Warning: Power surges, which can occur during electrical storms, can cause life-
threatening electric shocks and can damage or destroy the PBX.
• Do not touch the PBX or any devices connected to it during an electrical storm.
• Hire a qualified electrician to lay the cables within the building – including the cable to the
door terminal.
• Protect the devices by installing overvoltage protection.
Caution: Unauthorised changes to the device can damage the PBX or breach
security and EMC regulations. If security-relevant radio services are disrupted, the
Federal Network Agency can order the decommissioning of the device in accordance
with §14, section 6, Electromagnetic Compatibility Act.
• Always have a professional carry out repairs. Please contact your qualified electrician or
the manufacturer directly.
Caution: Exceeding (even temporarily) the threshold values indicated in the
technical data can damage or even destroy the PBX.
• Note the threshold values indicated in the technical data for voltage, electricity,
performance, ambient temperature, and moisture.
• Never cover the vent slots of the casing.
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COMpact 4000 Instructions V04 03/2017