Connecting Fxs Interfaces - AudioCodes MediaPack Series Hardware Installation Manual

CHAPTER 5 Cabling the Device
2.
Connect the other end of the cable to your network.
3. For 1+1 Ethernet port redundancy, repeat steps 1 through 2 for the standby port. Make
sure that you connect each port to a different network (but in the same subnet).

Connecting FXS Interfaces

The device interfaces with the FXS analog telephone equipment (e.g., fax machines, modems,
or telephones) through the 50-pin Telco connectors provided on the FXS blades. For more
information on the FXS blades, see
Safety Notice:
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FXS Outdoor Cabling and Power Surge Protection:
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To configure the current (mA) that the device supplies to the FXS ports in off-hook
state, use the EnhancedFXSLineCurrent parameter. Configuration is applicable only to
the first and last ports (e.g., 1 and 24) on each FXS connector. For more information,
Figure 5-5: Connecting the LAN Ports
FXS Blades
Make sure that the FXS ports are connected to the appropriate, external devices;
otherwise, damage to the device may occur.
FXS ports are considered TNV-2.
The device includes an integrated secondary surge protection, but does not include
primary telecom protection! When the FXS telephone 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.
Failing to install primary surge protectors and failing to comply with the grounding
instructions or any other installation instructions, may cause permanent damage to
the device!
The device complies with protection levels as required by EN 55024/EN 300386.
Higher levels of surges may cause damage to the device.
To protect against electrical shock and fire, use a minimum of 26-AWG wire size to
connect the FXS ports.
MP-1288 | Hardware Installation Manual
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