OptiX OSN 8800/6800/3800
Hardware Description
4 OptiX OSN 8800 Subrack
Issue 01 (2016-03-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
70
Figure 4-29
Slots of the subrack (AC power)
APIU
APIU
IU1 IU2
IU3
IU4
IU5 IU6 IU7 IU8
IU11 IU12 IU13 IU14 IU15
Fan
Fiber cabling area
IU19
IU9 IU10
IU21 EFI
PWR CRI MAJ MIN
PROG
STAT
S
C
C
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r s
er
vic
e b
oa
rd
S
C
C
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vic
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Paired slots
Mutual backup
For one-slot boards, the paired slots must be configured as follows: slots IU1 and IU2, slots IU3 and
IU4,
…
, slots IU13 and IU14.
For two-slot boards, the paired slots must be configured as follows: slots IU1 to IU2 and slots IU3 to IU4,
slots IU5 to IU6 and slots IU7 to IU8, slots IU9 to IU10 and slots IU11 to IU12.
For four-slot boards, the paired slots must be configured as follows: slots IU1 to IU4 and slots IU5 to IU8.
: houses service boards.
Pair slots refer to a pair of slots whose resident boards' overhead can be processed by the
buses on the backplanes.
When a universal platform subrack serves as a master subrack, the subrack can be
provisioned with two or one SCC board.
−
When two SCC boards are provisioned, they are in mutual backup and are inserted
in slots IU1 and IU2.
−
When only one SCC board is provisioned, it can be inserted in either slot IU1 or
IU2. When the SCC board is inserted in slot IU1, slot IU2 can be used to hold a
service board. When the SCC board is inserted in slot IU2, slot IU1 cannot be used
to hold a service board.
When the universal platform subrack serves as a slave subrack, the SCC board cannot be
configured. In this case, slots IU1 and IU2 are used to hold service boards.
The IEEE 1588v2 function is not supported by all services boards or ST2 boards in slots 3 and 4 in an
OptiX OSN 8800 universal platform subrack.
