Huawei NE05E Hardware Manual page 64

HUAWEI NE05E,NE08E
Hardware Guide
Board Structure
Figure 3-18
example).
Figure 3-18 Board structure
A board mainly consists of the following parts:
●
●
Board Naming
A board name mainly consists of the board functional version and short name. A
short name can roughly identify a board. The short name of a control board,
power board, and fan board is CXP, PIU, and FAN respectively. The following
Issue 05 (2023-03-31)
shows the structure of a board (using the EM4F board as an
PCB
The PCB is the most important part of the board. Through the front panel, the
PCB provides indicators, buttons, and ports.
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Different boards provide different indicators, buttons, and ports; not all boards support
a daughter board. For details, see the description of each board.
Front panel, including the captive screws, ejector levers, indicators, buttons,
and interfaces.
– Captive screws: secure the board in the subrack.
– Ejector levers: used for inserting or removing the board. Bar codes are
also attached on the ejector levers.
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The ejector lever on the left side of the front panel of a board is attached with a label
marking the bar code of the board (for a control board, the bar code label is above the
ejector level on the front panel). The bar code of a control board will be retrieved by the
device as the equipment serial number (ESN).
The ESN is used for applying for a License. The device automatically reads the bar code of
the backplane or control board as the device ESN. Generally, the bar code of the backplane
takes precedence over that of the control board.
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The preceding only describes how to roughly identify a board. For details on board
specifications, see board descriptions.
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3 Hardware Description
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