User Manual

12
User Manual
2.3. The Britecell Plus Master Unit
The Britecell Plus Master Unit is a widely-flexible system. It is available both as
a stand-alone version (the Fast Master Unit) and as a rack-based version. In
the followings we will give a brief overview of the components of these units.
The Master Fast (TFLF): designed into a
stand-alone mechanical case, it includes all
required ancillary and support functions. It is available
in various frequency ranges, from 800MHz up to 2200MHz
and allows feeding up to 4 Remote Units.
Module dimensions: 240 x 200 x 38mm
The Sub-rack (TPRN) is a 19” subrack hosting the Britecell Plus modules; it
accommodates 12 slots, whose sizes are 7TE x 4HE. As each Britecell Plus
module takes up one or two slots, each Master Unit can sustain up to 12
modules, depending on design configuration and requirements.
The Master Optical TRX (TFLN): in downlink it provides
an RF-to-optical conversion of the signal coming from the
BTS, and transmits it to 4 optical outputs, so as to feed 4
TFAx. In uplink it provides optical-to-RF conversion for 4
optical signals coming from RUs, and it combines them into a
single RF output, while providing automatic gain control in
order to balance the fibre losses. Module dimensions:
Width = 7TE, Height = 4HE (one slot in the master unit sub-
rack).
2.3.1 The Fast Master Unit
2.3.2 The rack-based Master Unit
Fig. 2.4: The Fast Master Unit
Fig. 2.5: The TPRN Subrack
Fig. 2.6:
The TFLN Master Optical TRX