User Manual

ADCP-75-158 • Preliminary Issue A • June 2003 • Section 1: Overview
Page 1-3
© 2003, ADC Telecommunications, Inc.
2.2 Base Transceiver Station to Host Unit Interface
The HU interfaces with the BTS which provides the RF channel inputs and outputs for a
designated sector. The BTS/HU interface may require installation of the Digivance Interface
Panels which are accessory products for the Digivance system. The Interface Panels are used
when multiple BTS’s and multiple Host Units require connection or when RF attenuation is
needed between the BTS and Host Unit.
Two types of Interface Panels are available: the Conditioning Panel and the Duplexing Panel. The
Conditioning Panel provides attenuation of the forward path signal to the level required for input
to the Host Unit. The Conditioning Panel also provides forward and reverse path combining and
splitting (as needed) to enable multi-BTS to single Host Unit, multi-BTS to multi-Host Unit, or
single BTS to multi-Host Unit configurations. A typical single BTS to multi-Host Unit
configuration is shown in Figure 1-2.
Figure 1-2. BTS/HU Interface with Conditioning Panel
The Duplexing Panel is used in conjunction with the Conditioning Panel when the BTS
provides a duplexed forward and reverse path RF connection as shown in Figure 1-3. The
Duplexing Panel separates the duplexed forward and reverse path signals. This allows the BTS
to be connected to the Host Unit which has separate forward and reverse path RF ports.
18514-A
RF
RF
RF
RF
BASE
TRANSCEIVER
STATION
COAXIAL
CABLES
COAXIAL
CABLES
HOST UNIT
HOST UNIT
HOST UNIT
CONDITIONING
PANEL