Core (Coba And Cosa) - Siemens BS-240 Technical Description

Information
Base Station System
Cover Parts:
CP:ACOM
CP:CU
CP:AC/DC
CP:DIAMCO
CP:COBA, COSA
CP:ACT
CP:HEX
Battery
Fan
Heater:
HEX
Frame
Shelter
Tab. 3.1 Units and Modules
3.1
A30808-X3247-L14-2-7618
Name
Cover Parts have to be
inserted if the respective
active module is not
needed in a configuration
Backup Battery systems
Central Fan unit
Single Heater
Compact Rack
Shelter of the Cabinet

Core (COBA and COSA)

The Core has the following tasks inside the BTSE:
– local controlling of the entire BTSE
– generating of system clocks
– providing of up to 8 Abis-interfaces to BSC or other BTSEs
– routing of Abis-data to up to 24 CUs
– providing an interface to the LMT/OMT
– handling and processing of O&M-messages
Therefore, the Core can consist of up to 2 (without redundancy) or up to 4 (with redun-
dancy) boards, which have a common backplane. The following picture gives an idea of
the slot-configurations:
Technical Description (TED:BSS)
Freq.
Var.
no the air flow inside the Frame or Shelter is
not affected
no up to 4 Battery systems can be equipped
(only in the Service1 or Service2 Rack-
Shelters)
no for forced convection cooling
no Heater can be equipped in all typer of
Shelters
no Base, Extension, Service1 and Service2
no Base, Extension, Service1 and Service2
with HEX
BS-240/241
Remarks
25