Cabling Mp-11X; Power Surge Protection And Grounding - AudioCodes MP-112 Hardware Installation Manual

Hardware Installation Manual
5

Cabling MP-11x

This section describes the MP-11x cabling procedures:

To cable MP-11x:

Power Surge Protection and Grounding – see 'Power Surge Protection and Grounding'
on page

Connecting to the Ethernet network – see 'Connecting MP-11x to the Network' on
page 25

Connecting to FXS/FXO devices – see 'Connecting MP-11x to FXS/FXO Devices' on
page 26

Cabling the FXS Lifeline – see 'Cabling MP-11x FXS Lifeline' on page

Serial connection to a computer – see 'Connecting MP-11x RS-232 Port to a PC' on
page 31

Connecting to the power supply – see 'Connecting MP-11x to Power' on page
5.1

Power Surge Protection and Grounding

Lightning is the transient passage of electrical current between a cloud and the surface of
the earth. Part of the lightning current can be carried inside a building from electrical lines
and analog telephone lines located outside. This direct injection of lightning current inside a
building can cause significant damage to electronic circuits and equipment.
To protect MP-11x from these power surges, it must be connected to an external lightning
protector. You must use a lightning protector of the type CIRCA 4B3S-75 manufactured by
CircaTelecom (http://www.circatelecom.com). The connection must be made using the
terminal fixture of the type CIRCA 2625QC/QC or 26100QC/QC.
This fixture must be connected alongside or within the Main Distribution Frame (MDF). You
must connect the grounding connection of this electrical cabinet to the grounding bus of the
electrical circuit board, using AWG wires of at least 10mm
meters. MP-11x must be connected to the power surge protector using minimum 26-AWG
wire thickness.
Analog Gateways
23
23
5. Cabling MP-11x
29
32
2
and maximum length of 3
MP-11x