AudioCodes MediaPack MP-1288, Руководство по установке оборудования

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CHAPTER 5 Cabling the Device
MP-1288 | Hardware Installation Manual
5 Cabling the Device
This section describes how to cable the device:
■
Connecting to earth / ground – see Grounding and Surge Protection below
■
Connecting to the LAN – see
Connecting Ethernet Interfaces on page 21
■
Connecting the FXS interfaces – see Connecting FXS Interfaces on page 22
■
Connecting the FXS lifeline – see Connecting the FXS Analog Lifeline on page 30
■
Connecting to a PC for serial communication – see Connecting the Serial Interface to a
Computer on page 32
■
Connecting to power – see
Connecting to Power on page 34
Grounding and Surge Protection
The following procedure 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."
➢
To connect the chassis to an earth ground:
1. Prepare an adequate length (maximum 20 mm or 0.8 in.) of stranded grounding wire (16
AWG minimum size) for the ground connection, as shown in the following figure:
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