7 Boards
Issue ()
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
103
The following figure shows how a service interface is numbered on the
NE20E-S16/NE20E-S16A.
Figure 7-3
Numbering rule of service interfaces on the NE20E-S16/NE20E-S16A
Table 7-3
Slot layout of the NE20E-S16/NE20E-S16A
Slot
Numb
er
Remarks
1 to 16
16
For PICs, which include HICs, FICs and the other
subcards.
17 and 18
2
For NSPs.
19 and 20
2
For MPUs, which are in 1:1 backup.
21 and 22
2
For PSUs, which are in 1+1 backup.
23
1
For the fan frame.
7.1.2 Bar Code for Boards
The bar code of a board is provided on the front panel of the board and contains the basic
information about the board, including the BOM code and delivery time.
The bar code of a board provides the feature information about the board and varies according
to boards. Figure 7-4 shows a bar code and Table 7-4 provides the description of the bar code.