User Manual

Cabinet descriptionNortel Networks Confidential 1–33
S8000/S8002/S8006 BTS Reference Manual
F–type converter
A converter, called F–type converter, supplies ± 15 V dc to the LNA–splitter and
the VSWR–meter.
A second F–type converter is available as an option.
RF Combiner and Tx–Filter compartment
The RF Combiner and Tx–Filter compartment can hold a maximum of either of the
following combination of modules:
six RF Combiner modules, duplexer–only (D)
six RF Combiner modules, two–way hybrid duplexer (H2D)
three RF Combiner modules, four–way hybrid duplexer (H4D)
four RF Combiner modules, duplexer–only (D) and four Tx–Filter modules
(TxF)
The D, H2D, and H4D RF Combiner modules perform the following functions:
transmission coupling of two, three, or four channels
filtering and duplexing of transmission and reception signals on the same
antenna port
amplification of reception signals
monitoring of the antenna VSWR (option)
The Tx–Filter performs the following functions:
filtering of transmission signals
monitoring of the antenna VSWR (option)
Combiner interconnection compartment (COMICO)
The COMICO is the interconnection board for the modules of the RF Combiner
compartment that centralizes inputs/outputs on the alarms and the power supplies.
1.2.1.3 Compartment on the right side
BCF or CBCF Compartment
The BCF or CBCF Compartment of the base cabinet contains a fuse panel and a BCF
unit or CBCF Module.
The following BCF boards are visible and accessible in the front panel of the BCF
Compartment:
three PCM Interface boards (PCMI)
two Gateway boards (GTW)
two Control, Switching and Management boards (CSWM)