Introduction to the MA2000 System
MobileAccess2000 TSX System Architecture
MA2000 Installation and Configuration Guide
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1.1 MobileAccess2000 TSX System
Architecture
The MobileAccess2000 TSX/QSX solution is comprised of the following elements. Third-party
equipment is sold separately (i.e. cabling, antennas).
1.1.1
Head-End Equipment
At the head-end MobileAccess elements provide interface to the wireless service provider’s
network, where the signals can be conditioned through an active interface and transported over
optic fiber to the remote end.
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Radio Interface Unit (RIU): The RIU conditions the RF Downlink (DL) signals from an
operator’s signal source (BTS: base-transceiver stations or BDA: bi-directional amplifiers)
located inside the building. The RIU then custom tunes incoming signals in order to ensure a
constant level of RF before signals are passed to/from the Base Unit (BU). RF Uplink (UL)
signals from subscribers’ phones are received from the BU and transported back to the
operator’s signal source (BTS or BDA) and to the operator’s macro network outdoors.
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Base Unit (BU): The BU converts RF Downlink (DL) signals received from the RIU into an
optical signal. This optical signal is then transported over single or multi-mode fiber optic
cabling (SMF/MMF) to/from the MobileAccess2000 TSX units, which are housed inside of
IDF/Telco/IT closets at the remote-end locations, for distribution throughout the facility.
Uplink (UL) signals from subscribers’ phones are received from the antennas and sent back
to the TSX units through the fiber connection to the head-end, where they are converted
back from RF optical to RF electrical before being passed on to the RIU.
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System Controller: The system controller enables centralized remote management and
control of all MobileAccess2000 elements.
1.1.2
Remote-End Equipment
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At the remote end, the optical signal is reconverted to RF, amplified, filtered and distributed
over the broadband antenna infrastructure.Service Combiner Unit (SCU): The Service
Combiner Unit is a passive module that combines and distributes the UL and DL signals from
all the M2000 TSX and/or MA2000 QSX to the broadband antenna.
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MA2000 TSX: The MA2000 TSX delivers coverage for three RF services over a common
fiber/coax antenna infrastructure. The output of multiple TSX units can be combined to
provide a full multi-service solution over a common fiber/coax antenna infrastructure. The
TSX comes pre-packaged with applicable filters and other required accessories to simplify
the ability to order, service, and install this solution.
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MA2000 QSX: The MA2000 QSX delivers coverage for four RF services (CELL, PCS, 700LTE
and AWS) over a common fiber/coax antenna infrastructure. The output of multiple QSX and
TSX units can be combined to provide a full multi-service solution over a common fiber/coax
antenna infrastructure. The QSX comes pre-packaged with applicable filters and other
required accessories to simplify the ability to order, service, and install this solution. The
sub-components of the QSX are equivalent to that of the TSX with an additional AO.
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MA2000 TSX/QSX Sub-components:
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Remote Hub Unit (RHU): The RHU is a services-specific module that performs RF
optical to RF electrical conversion on signals received from the BU. Signals are
automatically filtered and amplified for transport over broadband coax cable to a passive
