installing the device. 
 
 
Warning: The MP-1xx device is an indoor unit and therefore, must be installed only 
INDOORS. 
 
 
Warning: Routing of FXS telephony cables outdoors can be done only in conjunction 
with AudioCodes’ approved surge protector (Circa model 4B3S-
installation and grounding. When done correctly, the installation will meet ITU-T K.21 
basic level. For more information, see Section  5.1 on page 23. 
 
 
Warning: The Ethernet port interface cabling must be routed only indoors and must 
not exit the building. 
 
 
Caution Electrical Shock 
Do not open or disassemble this device. The device carries high voltage and contact 
with internal components may expose you to electrical shock and bodily harm. 
 
 
Warning:  The device is supplied as a sealed unit and must only be serviced by 
qualified service personnel. 
 
 
Warning: Before servicing the device, disconnect the device from the mains and from 
the telephone network cabling.