User's Manual

Introduction to the MA 2000 System
System Architecture
MA 2000 Installation and Configuration Guide 2
Features and Capabilities
• Support for all current and future technologies such as TDMA, CDMA, WCDMA and GSM, and
services such as PCS/CELLULAR, Paging, iDEN and 802.11 (a/b/g) Wireless LAN
• Scalable and future-safe – can
easily be upgraded to provide support for additional services
• Remote end-to-end monitoring through MA 410/430 controllers
• All active components are located in the communication closet/room
• Simple installation and commissioning
1.1 System Architecture
At the head-end, MobileAccess elements provide the interface to the wireless service provider’s
network, condition the signals, convert them from RF to optical and transport them over the
optic fiber infrastructure to the remote end.
At the remote end, MobileAccess elements receive the optical signal transmitted from the head
end, convert the signal back to RF, amplify and filter the signals and then combine them for
distribution over the broadband antenna infrastructure.
Controllers installed at the head-end provide direct interface to the MA elements and through
them, provide end-to-end control over the remote end elements.
1.1.1 Head-End Elements
The following elements are installed at the BTS/BDA side:
• MA Remote Interface Unit (RIU) – Receives and combines RF inputs from one or more
cellular networks via off-the-air repeaters or Base Transceiver Stations (BTS).
NOTE: Interface to the BTS/BDA may also be passive (i.e. Interface Box).
• Base Unit (BU) – Receives the combined signal from the RIU and converts it to an optical
signal for distribution over fiber optic cables to multiple MobileAccess Remote Hubs.
NOTE: These elements are not specific to the MA 2000 system. They are common to other MobileAccess
systems.
1.1.2 Remote Locations Elements
The following elements are installed at each remote location:
• Service specific units that are either housed internally in an MA 2000 Cabinet or connected
externally to an MA 2000 Lite device. Two types of units are available:
• Remote Units (RU) – supports two voice services and performs the optic to RF (and
vice versa) conversion, amplification and filtering at the remote locations. An third
service can be added through connection to an MA 1200 Add-on unit.