Huawei OptiX PTN 7900-12, Быстрое руководство по установке, Страница: 9 / 45

Fan slot 40
Fan slot 39
S
lo
t 1
3
Fan slot 30
Fan slot 29
X
C
S
2
5
S
lo
t 1
4
S
lo
t 2
4
S
lo
t 2
3
S
lo
t 2
2
S
lo
t 2
1
S
lo
t 2
0
S
lo
t 1
9
S
lo
t 1
8
S
lo
t 1
7
S
lo
t 1
6
S
lo
t 1
5
C
X
P
2
6
X
C
S
2
8
C
X
P
2
7
S
lo
t 0
1
S
lo
t 0
2
S
lo
t 1
2
S
lo
t 1
1
S
lo
t 1
0
S
lo
t 0
9
S
lo
t 0
8
S
lo
t 0
7
S
lo
t 0
6
S
lo
t 0
5
S
lo
t 0
4
S
lo
t 0
3
P
S
U
3
5
P
S
U
3
6
P
IU
3
7
P
IU
3
8
P
S
U
3
3
P
S
U
3
4
P
IU
3
1
P
IU
3
2
Cable trough
Fiber trough
Fiber trough
Air intake vent
Cable trough
Fiber trough
Fiber trough
Air intake vent
6
The OptiX PTN 7900-24 subrack consists of the service board area, system control board area, switching fabric
area, power supply board area, Fan powered box area and cable routing area.
Installing the Subrack
2 Subrack Architecture
Power interface board area
Power supply board area
Fan powered box area
Service board area
System control board area
Switching fabric area
The functions of these components are as follows:
 Power interface board area: houses the PIU boards.
 Power supply board area: houses the PSU boards.
 Cable trough: for routing fibers.
 Cable trough: for routing cables.
 Air intake vent: air duct entrance.
 Service board area: houses the processing boards.
 System control board area: houses the system
control, communication, and auxiliary processing
boards (SCA boards).
 Switching fabric area: houses the cross-connect
boards (XCS boards). (Slots 5-8 and 17-20 in a
cabinet support 400G cards.)
Fiber trough
Cable trough
Air intake vent