Installation Manual  22  Document #: LTRT-59809 
 MediaPack Series 
 
3.  Swivel the bracket until the holes in the bracket align with the two empty screw holes 
on the MP-124. 
4.  Use the supplied screws to attach the bracket to the side of the MP-124. 
5.  Repeat steps 1 through 4 to attach the second bracket to the other side of the MP-124. 
6.  Position the MP-124 in the rack and line up the bracket holes with the rack frame 
holes. 
7.  Use four standard rack screws (not supplied) to attach the MP-124 to the rack. 
 
2.2.4  Cabling the MP-124 
This section describes MP-124 cabling. 
¾  To cable the MP-124, take these 5 steps: 
1.  Ground the MP-124 (refer to 'Grounding the MP-124' on page 22). 
2.  Connect MP-124 to the Ethernet network (refer to 'Connecting MP-124 to the Ethernet 
Network' on page 24). 
3.  Con
nect MP-124 to FXS analog lines using a Telco cable (refer to 'Connecting MP-124 
to FXS Interface' on page 25).
 
4.  Connect MP-124 RS-232 port to a PC (refer to 'Connecting MP-124 RS-232 Port to a 
PC' on page 26).
 
5.  Connect MP-124 to the power supply (refer to 'Connecting MP-124 to Power' on page 
27).
 
Once you have completed the above hardware installation steps and after powering-up the 
MP-124, the Ready and LAN LEDs on the front panel light up green (after a self-testing 
period of about a minute). Any malfunction in the startup procedure changes the Ready 
LED to red (for details on the MP-124 LEDs, refer to 'Monitoring Front-Panel LEDs' on page 
49). 
Once you have cabled the device, you can begin configuring the device (refer to 
'Configuring the Device' on page 29). 
 
2.2.4.1  Grounding the MP-124 
Connect an earthed strap to the chassis' protective earthing screw (6-32 UNC screw) 
located on the device's rear panel, and fasten it securely according to safety standards. 
 
 
Note:  The MP-124 complies with IEC 61000-4-5 1 kilovolts (kV) power surge levels 
as required by EN 55024 and EN 300-386. However, in deployments where 
the FXS telephone lines of MP-124 are routed outside the building, voltage 
due to lightning may exceed 1 kV. In this case, primary surge protectors 
connected between Tip to Ground and between Ring to Ground on each FXS 
port are recommended. This power surge protection prevents damage to MP-
124 and communication disruption. Refer to the procedure below for 
connecting your MP-124 to a third-part surge protector. 
 
It is highly recommended that the installation site comply with ETS 300-253 
“Earthing and Bonding of Telecommunication Equipment in 
Telecommunication Centers”.