User Manual

ADCP-75-150 • Preliminary Issue A • March 2003 • Section 1: Overview
Page 1-1
© 2003, ADC Telecommunications, Inc.
SECTION 1: OVERVIEW
1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2 800 MHZ 20 WATT SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1 Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2 Base Transceiver Station to Host Unit Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.3 Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
2.4 Local Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
2.5 Remote NOC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
3 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.1 Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.2 Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
3.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
3.5 Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
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1 INTRODUCTION
This section provides basic description, application, and configuration information about the
Digivance 800 MHz 20 Watt System. Throughout this publication, all items referenced as
“accessory items” are not furnished with the basic product and must be purchased separately.
2 800 MHZ 20 WATT SYSTEM OVERVIEW
The Digivance 800 MHz 20 Watt System is an RF signal transport system that provides long-
range RF coverage in areas where it is impractical to place a 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 system 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 system, 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 System Components
The basic components of a Digivance 20 Watt System and their functions are shown in
Figure 1-1. A 20 Watt system consists of the Host Unit (HU) and the Remote Unit (RU). Both
an indoor and an outdoor remote unit are available. Control and monitoring functions are
provided by the Digivance Element Management System (DEMS), a PC-based software
program. In addition, various accessory items are available separately including a passive
Wavelength Division Multiplexer (WDM), an active Coarse Wavelength Division Multiplexer
(CWDM) system, conditioning and duplexing panels (for interfacing the HU with the BTS),