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Hardware Description

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Hardware Description
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Board Overview

Board Overview

A board mainly consists of the printed circuit board (PCB) and the front panel.

Board Structure

Figure 4-1 shows the structure of a board (using the EM4F board as an example).

Figure 4-1 Board structure

A board mainly consists of the following parts:
  • PCB

    The PCB houses various functional chips of the board and is the most important part of the board. Through the front panel, the PCB provides indicators, buttons, and ports.


    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.

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 NE as the equipment serial number (ESN).

The ESN is used for applying for a license. NE 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.

Board Naming


The preceding only describes how to roughly identify a board. For details on board specifications, see board descriptions.

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 mainly describes how to quickly identify a physical interface board through the short name of a board.

As shown in Figure 4-2, the short name of a board consists of an abbreviated board name and an extended name. An abbreviated board name includes the board type, interface quantity, and interface rate. When boards have the same abbreviated board name, they can be differentiated using extended names. An extended name does not have special meanings and can be omitted.

Figure 4-2 Board short name (using ML1A as an example)

The following describes each part of an abbreviated board name:

  • Board type M indicates an E-carrier interface board. The interface quantity is represented using L or D, indicating 16 or 32 respectively. The interface rate is represented using 1, indicating E1.
  • Board type E indicates an Ethernet interface board. The interface quality is represented using an Arabic numeral. The interface rate is represented using M or X, indicating FE/GE or 10GE respectively. Extended name F or T is used to indicate an optical interface or electrical interface respectively.

    For the name of an Ethernet interface board, the interface rate and quantity rate are in an order opposite to those for the names of other boards. For example, in EM4F (a name of an Ethernet interface board), interface rate M comes before interface quantity 4.

DIP Switch

  • This operation should be executed with caution. Use it under the guidance of technical personnel.

  • After the configuration file is deleted, reset the DIP switches to 0, 0, 0, and 0. In this way, you do not need to delete the configuration file at each startup.
  • The numeral indicates 1, and the letter indicates 0.
  • The device password is deleted when the configuration file is deleted.

You can use the DIP switches to delete the configuration file loaded on the device.

Set DIP switches to 1, 1, 0, and 1. During startup, the device deletes the loaded configuration file based on the DIF switch status. After the password is deleted, you are required to enter a new password when a PC is connected to the device through the console interface.


If no PC is connected to the device through the console interface, you can check whether the password is deleted based on the indicator status. The password is deleted at the stage when the BIOS is guiding the upper-layer software during the device startup. At this stage, the green PROG indicator is on for 300 ms and off for 300 ms.

To reset the DIP switches to 0, 0, 0, and 0, you are advised to remove the board after the STAT and PROG indicators become green.

Updated: 2019-01-14

Document ID: EDOC1100058943

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