User Manual

ADCP-75-116 • Issue A • August 2001 • Section 1: Overview
Page 1-1
© 2001, ADC Telecommunications, Inc.
SECTION 1: OVERVIEW
1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2 SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1 Basic Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2 Base Transceiver Station Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
2.3 Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.4 Local Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.5 Remote NOC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
3 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.1 Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.2 Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
3.5 Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
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1 INTRODUCTION
This section provides basic description, application, and configuration information about the
Digivance SMR 800 MHz Long Range Coverage Solution (LRCS). Additional versions of the
Digivance LRCS including a cellular 800 MHz product and a PCS 1900 MHz product are
planned for future releases.
2 SYSTEM OVERVIEW
The Digivance SMR 800 MHz LRCS is an RF signal transport system that provides long-range
RF coverage in areas where it is impractical to place a full Base Transceiver Station (BTS) at the
antenna site. High real estate costs and community restrictions on tower and equipment
locations often make it difficult to install the BTS at the same location as the antenna. The
Digivance LRCS is designed to overcome equipment placement problems by allowing base
stations to be hubbed at a central location while placing remote antennas at optimum locations
with minimal real estate requirements. With the Digivance LRCS, RF signals can be transported
to one or more remote locations to expand coverage into areas not receiving service or to extend
coverage into difficult to reach areas such as canyons, tunnels, or underground roadways.
2.1 Basic Components
The basic components of a Digivance LRCS system and their functions are shown in
Figure 1-1. One link of a basic system consists of the Host Unit (HU) and the Remote Unit
(RU). Control and monitoring functions are provided by the Digivance Element Management
System (EMS). On an optional basis, each HU and RU link may be ordered either with or
without reverse path diversity. In addition, two accessory items, a battery back-up kit (for the
RU) and a Wave Division Multiplexer (WDM) module (for the HU and RU) are available if
required by the application.