User's Manual

InterReach Fusion Wideband System Description
Page 14 InterReach Fusion Wideband Installation, Operation, and Reference Manual
© 2015 TE Connectivity D-620616-0-20 Rev K • TECP-77-044 Issue 9 • March 2015
SYSTEM OPERATION
Figure 6. Downlink (BTS to Wireless Devices)
Figure 7. Uplink (Wireless Devices to BTS)
Main Hub
Expansion Hub
RAU
The Main Hub receives downlink
RF signals from a base station using
50 Ohm coaxial cable.
The Main Hub converts the RF signals to IF, then
to optical signals and sends them to Expansion
Hubs (up to four) using optical fiber cable.
The Expansion Hub converts the optical signals
to electrical signals and sends them to RAUs
(up to eight) using 75 Ohm CATV cable.
The RAU converts the IF signals
to RF and sends them to passive
antennas using 50 Ohm coaxial
cable.
Main Hub
Expansion Hub
RAU
The Main Hub sends
uplink RF signals to a
base station using
50 Ohm coaxial cable.
The Main Hub receives
the optical signals from
the Expansion Hubs (up
to four) using optical fiber
cable and con-verts them
to RF sig-nals.
The Expansion Hub receives
the IF signals from the RAUs
(up to eight) using CATV cable
and converts them to optical
signals.
The RAU receives uplink
RF signals from the
passive antenna using
50 Ohm coaxial cable and
converts them to IF signals.