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User Manual
Airbridge cBTS3612 CDMA Base Station
0
B
C
M
P
S
U
B
B
H
T
P
R
A
M
RLDU
C
D
U
B
B
H
T
P
R
A
M
Figure 5-1 Configuration of a basic cabinet
Difference between basic cabinet and extended cabinet: Boards are not necessary
in the baseband subrack of the extended cabinet, and the fans also are not
necessary in fan subrack.
The front view of a basic cabinet is shown in Figure 5-2.
9
10
11
12 13 14 15 16 17 18 19 20 21
1
2
3
4
5
6
7
8
B
B
B
B
B
B
B
B
B
B
B
B
B
C
C
C
C
C
C
C
R
R
C
C
R
R
I
I
P
P
P
P
P
P
D
D
K
K
D
D
M
M
M
M
M
M
M
M
M
M
M
M
M
Fan box 1
Fan box 2
P
P
P
S
S
S
U
U
U
B
B
B
B
B
B
B
H
T
H
T
H
T
H
P
R
P
R
P
R
P
A
M
A
M
A
M
A
RLDU
C
C
C
D
D
D
U
U
U
B
B
B
B
B
B
B
H
T
H
T
H
T
H
P
R
P
R
P
R
P
A
M
A
M
A
M
A
Power distribution box
Baseband
subrack
B
B
B
B
B
B
B
B
C
C
C
C
C
C
R
R
P
P
P
P
P
P
D
D
Fan
M
M
M
M
M
M
M
M
subrack
PSU
subrack
P
S
U
RF
subrack
B
B
B
T
H
T
R
P
R
RLDU
M
A
M
subrack
RLDU
CDU/DFU
subrack
C
C
D
D
U
U
RF
subrack
B
B
B
T
H
T
R
P
R
M
A
M
5-2
System Description
5 System Configuration
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