User Manual

17
MN024-08
Fig. 2.18: Block diagram for a triple-band system with not-duplexed base stations.
This scheme involves a rack-based Master Unit, with 8-TFLN optical TRXs and 32 TFAx
remote units.
Now let’s consider the same network configuration, but with duplexed BTSs. In
this case, some TDPX modules (see fig. 2.7) are required in order to combine
UL and DL ports on single RF channels.
.
Level
adjustment
Services
combining /
splitting
Signal splitting /
combining
Electrical / optical
conversion
Optical / electrical
conversion
Triple
-
band system
–
not duplexed BTSs
–
8 TFLN local units
TLCN2
TLTN
TBSI
TBSI
TBSI
GSM
900
BTS
GSM
1800
BTS
UMTS
BTS
Fixed
Atten.
Fixed
Atten.
Fixed
Atten.
TLCN4
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TFLN
TFAx
TFAx
TFAx
TFAx
TLCN4
-
Britecell Plus MASTER UNIT
Britecell Plus
REMOTE UNITS