Fig. 2.6 Possible Configuration Of Service1 Rack And Service2 Rack - Siemens BS-240 Technical Description

Technical Description (TED:BSS)
BS-240/241
22
SIEMENS
FAN 0
D
AC/ AC/ AC/
AC/
C
B
DC DC DC
DC
C
01 02 03
00
T
R
L
AC + DC Distribution
FAN 2
D
AC/
AC/ AC/ AC/
C
DC
B DC DC DC
C
13
10 11 12
T
R
L
AC + DC Distribution
1/4
Battery
Battery
Set
Fig. 2.6 Possible Configuration of Service1 Rack and Service2 Rack
On the digital side there is an extension of the CC links (connection between Core Back-
plane and the CU's not housed in the Base Rack) and the CAN Bus. The CAN Bus
connection cannot be shown in the right way because it strongly depends on the number
of Extension and Service Racks present.
On the RF side there is an extension in the RX path only for omni and specific sector
cell (e.g., 5/5/5) configurations and diversity reception with more than 8 TRX. Thus a
maximum of 2 RF cables (cascading) are connected between two Racks. There is no
TX combining over Rack borders thus the TRXs of different Racks is combined on air
only. Some configurations are not possible with 2 Racks only e.g., 5/5/5 with FICOM
because of the number of available ACOM slots.
SIEMENS
DC-PANEL
ACT-C
FAN 1
AC/
AC/
DC
DC
04
05
FAN 3
AC/ AC/
DC DC
14 15
1/4
Set
Base Station System
DC-PANEL
ACT-C
FAN 0
FAN 1
LE 0
LE 1
LE 2
LE 3
LE 4
LE 5
1/4
1/4
Battery Battery
Set
Set
1/4 1/4
Battery Battery
Set Set
A30808-X3247-L14-2-7618
Information