User Manual

Duo-i6515/6525/8030NM
User Manual V1.6
Advanced RF Technologies, Inc. Proprietary Document Page 40 of 40
Power Supply
It provides DC power to each module within the repeater.
Controller
It is responsible for monitoring the status of each module and controls its
parameters. Also it interfaces with PC through Ethernet port.
Down Converter Module
The downlink RF signal entered through the cavity filter is converted to IF
frequency, which is later converted back to RF frequency again through digital
filtering.
Up Converter Module
The uplink RF signal entered through the cavity filter is converted to IF
frequency, which is later converted back to RF frequency again through digital
filtering.
Quad-Plexer
It consists of four BPFs (band-pass filters) each of the four RF signal paths:
SMR 800 (Tx & Rx) and SMR 900 (Tx & Rx)
Digital Filter
It is composed of A/D (analog to digital) and D/A (digital to analog)
converters. It also has a FPGA (field programmable gate array) which has the
capability for superior out-of- band rejection and re-banding.
Modem Box Adapter
Adapter for modem box