Huawei OptiX OSN 8800 Hardware Description page 72

OptiX OSN 8800/6800/3800
Hardware Description
Figure 4-29 Slots of the subrack (AC power)
IU1
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.
Pair slots refer to a pair of slots whose resident boards' overhead can be processed by the
buses on the backplanes.


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.
Issue 01 (2016-03-10)
IU21 EFI
IU2
IU3 IU4 IU5
Paired slots
: houses service boards.
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.
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PWR CRI MAJ MIN STAT
IU9 IU10
IU6 IU7 IU8
Fiber cabling area
IU19 Fan
4 OptiX OSN 8800 Subrack
PROG
IU11 IU12 IU13 IU14 IU15
Mutual backup
APIU
APIU
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