User Manual

System Description NOTCHCELL Repeater
R-TRON Proprietary & Confidential Page 14
3.3.7 ARIU (Advance Repeater Interface Unit board)
Figure 12 ARIU
BTS sends the alarms of Notch repeater and the operator can check and control.
3.3.8 Arrestor
Figure 13 Arrestor
Arrester uses a semiconductor varistor to protect equipment from lightning.
3.3.9 EMI/EMC Filter
Figure 14 EMI/EMC Filter
It use to prevent the noise ingredient is radiated with the spurious to happen to the outside in the repeater.