Protective Earthing
The equipment is classified as Class I EN 62368-1 and UL 62368-1 and must be earthed at
all times.
Finland: Laite on liltettava suojamaadoituskoskettimilla varustettuun pistorasiaan.
Norway: Apparatet rna tilkoples jordet stikkontakt.
Sweden: Apparaten skall anslutas till jordat uttag.
Grounding and Power Surge Protection
◼ The device must be installed only in telecommunication sites / centers 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
unit. It is essential that the impedance will be kept below 0.5 ohms!
◼ Proper grounding is crucial to ensure the effectiveness of the lightning protection,
connect the device permanently to ground. The device's grounding screw must be
connected to the equipotential grounding bus bar located in the Telecommunication
rack or installation site, using a wire of 6 mm
2
surface wire. If the device is installed in
a rack with other equipment, the rack must be connected to the equipotential
grounding bus bar of the Telecommunication room, using a stranded cable with
surface area of 25 mm
2
. The length of this cable must be as short as possible (no
longer than 3 meters).
◼ As most of the installation is the responsibility of the customer, AudioCodes can
assume responsibility for damage only if the customer can establish that the device
does not comply with the standards specified above (and the device is within the
hardware warranty period).
◼ The device complies with protection levels as required by EN 55035/EN 300386.
Higher levels of surges may cause damage to the device.
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