FS71C-85 Series User Manual
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Copyright © 2015 Fiber-Span
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Product Introduction
This manual covers the
Digital Narrowband Headend
Repeater Unit
(D
HRU
)., model
FS71C-85
. The DHRU is
the off-air interface to the Distributed Antenna System
(DAS) and is typically fed donor signals by coaxial cable
from one or more off-air antennas. On the DAS side, the
HRU may be connected directly via coaxial cable, or op-
tionally, to
RRUs
via
BSU
(Base Station Interface Unit)
and one or more
FTUs
(Fiber Transceiver Unit).
The following diagram illustrates how the DHRU fi ts
into the Fiber-Span System Architecture.
Figure 1. Fiber-Span System Architecture & Product Family
DHRU - Digital Headend Repeater Unit
IHU - Integrated Headend Repeater Unit
BSU - Base Station Interface Unit
FTU - Fiber Transceiver Unit
RRU - Remote Repeater Unit
CRRU - Compact Remote Repeater Unit
BTS - Base Transceiver System
GPS - Global Positioning System
