User's Manual

Introduction
P/N 709C011801
Page 20
1.5 System Architecture and Topologies
The ONE™ solution fiber-optic infrastructure is used to transmit both RF and digital services:
• RF services – fiber-optics infrastructure transfers converged wireless services from the headend towards Remote Antenna
Units (RAU) deployed at the remote end locations according to user defined configuration.
• Digital services – fiber-optics infrastructure transfers Digital services from the corporate LAN to Gigabyte Ethernet Modules
(GEM) and then 3
rd
party equipment deployed on each floor.
Figure 1-3. ONE™ Solution Basic Architecture
1.5.1 RF Path
At the headend, RF signals from the RF signal sources (e.g. BTS/BDA) are conditioned by service specific (conditioner) modules
in the HEU (Headend Unit) and organized into (up to three) user configurable sectors. The conditioned RF signals are converted
to optic signals by the (wideband) OIU (Optic Interface Unit) and specific sectors are routed towards selected remote locations
according to user defined configurations.
The optic fibers at the OIU are routed to the ICU (Integrated Centralized Unit) at the remote end. From the ICU the optic fibers
are distributed along with DC to the Remote Antenna Units (RAU).
Figure 1-4. RF coverage Architecture