Examples Of Possible Btse Configurations; Fig. 4.9 Multi-Cell (3,3,2): With 3 Duamco 4:2 - Siemens BS-240 Technical Description

Information
Base Station System
Mechanical Size, W x H x D
Weight
Antenna connector
BTS connector
General Supply Voltage Range
Alarm functions
CIN is part of the combining units DUAMCO or DIAMCO and values are incorporated in the units specs.
Tab. 4.5 Parameters of 900/1800 MHz Tower Mounted Amplifier
4.1.4
CELL 0
DUAMCO 4:2
RX TX
CU0 CU1 CU2
Fig. 4.9 Multi-cell (3,3,2): with 3 DUAMCO 4:2
A30808-X3247-L14-2-7618
The TMAs are implemented for four different frequency bands: P-GSM 900, GSM-RE
900 (RE: Railway Extension; DUAMCO 2:2 and DUAMCO 4:2), GSM 1800 and GSM
1900 (DUAMCO 2:2 and DUAMCO 4:2). The division of the GSM 900 band (39 MHz) in
two interleaved sub-bands (25 MHz each, P-GSM and GSM-RE) results from the
required filter volume for the whole band.(see

Examples of possible BTSE configurations

Most frequently used configurations:
– 3/3/2 with duplex combining
– 8/0/0 with filter and duplex combining
– 2/2/2 with duplex combining
– only duplex or only filter combining is exclusively used within a cell
RX TX
CU3 CU4 CU5
172x280x191 mm (8"x11"x7.5")
4.25 kg (9 Lbs)
7/ 16
7/ 16
+12V +/- 8%
alarming via sub-carrier to DUAMCO or DIAMCO
CELL 1
DUAMCO 4:2
RX TX RX TX
Technical Description (TED:BSS)
Tab. 1.2)
CELL 2
DUAMCO 4:2
RX TX
CU6 CU7
BS-240/241
RX TX
57