User Manual

Andrew InCell™ Fiber Optic Distributed Antenna System Users Guide
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Central Distribution Unit (CDU)
The Central Distribution Unit (CDU) is the core module that can drive up to six Remote
Antenna Units (RAU. The CDU separates the down and uplink RF signals and converts
these to optics for transmission over a 2-core single-mode fiber cable to one of six RAU’s.
The CDU (shown at Figure 3) is housed in a standard 1U, 19-inch rack mount unit and
provides 6 sets of duplex optical fiber links to the remote antenna units.
Figure 3. InCell™ Central Distribution Unit
The figure below provides a detailed view of the CDU front panel, showing the six remote
antenna interface ports. Each of the six ports is identical and provides DC power for the
remote antenna as well as a downlink interface and an uplink interface with the remote
antenna unit.
CDU FRONT PANEL