MediaPack Analog Gateways 29 MP-1288
Hardware Installation Manual 5. Cabling the Device
5 Cabling the Device
This section describes how to cable the device:
Connecting to earth / ground – see Section 5.1
Connecting to the LAN – see Section 5.2 on page 31
Connecting the FXS interfaces – see Section 5.3 on page 32
Connecting the FXS lifeline – see Section 5.4 on page 41
Connecting to a PC for serial communication – see Section 5.5 on page 42
Connecting to power – see Section 5.6 on page 44
5.1 Grounding and Surge Protection
The procedure below describes how to ground the device.
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 (as described in the procedure below).
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).
Protective Earthing
The equipment is classified as Class I EN 60950 and UL 60950 and must be earthed at
all times (using an equipment-earthing conductor).
• Finland: "Laite on liltettava suojamaadoituskoskettimilla varustettuun pistorasiaan."
• Norway: "Apparatet rna tilkoples jordet stikkontakt."
• Sweden: "Apparaten skall anslutas till jordat uttag."
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