User's Manual

USER MANUAL FOR TC-2000
TC-2000 QI
Copyright - refer to title page
Page 8
ENU Status : 1-1-1
2 EQUIPMENT DESCRIPTION
2.1 BLOCK DIAGRAM
Figure 2: System Block Diagram
As it is show in figure2,the multi-channal carrier signal from BTS TX1/TX2 port goes into the system at the
Input Duplexer. The duplexer filters out the out of band signals and combines the TX carriers in the Input
Tray. The combiner signal is the sent through an adjustable attenuator that feeds into the MCPA for power
amplification. The signal is then sent through the Output Duplexer and into the antenna at ANT1. In the
event of a major fault in the PA or power failure, the bypass switch will be activated to ensure BTS
continuous signal coverage.
The UL signal from antenna1 goes by ANT1 port into the Output Duplexer where the out-of-band signals
get filtered out. The filtered signal then gets sent to the Input Tray where the user has the option of
sending the signal through a LNA and adjustable attenuator or bypassing LNA altogether. The signal then
gets sent out through the Input Duplexer to the base station.