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Mobile WiMAX Indoor RAS SPI-2210 System Description/Ed.07
© SAMSUNG Electronics Co., Ltd. 3-11
PDP-PIR is redundant to supply -48 VDC to MBB-P through two routes. Each route is
divided into two input powers, and the boards of DMB are supplied with the power
composed of ORing from the two input powers.
The figure below shows the power layout indicating the type of the powers supplied to the
PDP-PIR from the rack input power source and their connection points:
Figure 3.5 Power Structure
Filter
M
R
U
-
2
4
M
R
U
-
2
0
M
R
U
-
2
1
M
R
U
-
2
2
M
R
U
-
2
3
M
R
U
-
2
5
M
R
U
-
2
6
M
R
U
-
2
7
M
R
U
-
2
8
Filter
R
E
S
E
R
V
E
D
M
R
A
-
S
8
R
E
S
E
R
V
E
D
R
E
S
E
R
V
E
D
M
R
A
-
S
R
M
R
A
-
S
0
M
R
A
-
S
1
M
R
A
-
S
2
M
M
A
-
S
A
M
M
A
-
S
B
M
E
I
M
R
A
-
S
3
M
R
A
-
S
4
M
R
A
-
S
5
M
R
A
-
S
6
M
R
A
-
S
7
A-path
B-path
A
I
C
U
A
U
X
-
0
A
U
X
-
1
A
U
X
-
2
F
A
N
-
P
I
D
F
A
N
-
P
I
R
FCM
MBB-P
-48 VDC
-48 VDC
-48 VDC
PDP-PIR
F
A
N
-
P
I
R
F
A
N
-
P
I
R
PDP-PA
Filter
-48
V
DC
Filter