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HUAWEI NIP6800 Series V500 Hardware Guide

This document of the NIP6800 Series describes hardware structure, installation guide, and hardware maintenance. The content of this document includes the appearance and specifications of the product, the supported expansion cards, preparation before the installation, installation, cabling, and hardware replacement.
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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).
Replacing an LPU

Replacing an LPU

This section describes the precaution and procedure for replacing an LPU.

Context

Before replacing an LPU, note the following:

  • You must first prepare a new LPU before replacing an LPU.

  • When replacing boards on the , ensure that the boards in the lower chassis are installed inversely.

Tool

Before replacing an LPU, you need the following tools:

  • ESD wrist strap or ESD gloves

  • Phillips screwdriver

  • ESD bag

Procedure

  1. Check the location of the LPU to be replaced.

    • Before pulling out an LPU that is to be replaced, first check the location of the LPU, that is, the cabinet, chassis, and slot where the LPU resides.
    • has 16 LPU slots numbered from 1 to 16.
    • NIP6860 has 8 LPU slots numbered from 1 to 8.
    • NIP6830 has 3 LPU slots numbered from 1 to 3.

    Locate the LPU to be replaced in the chassis and label the LPU.

  2. Check whether there is any bent pin in the connector of the new LPU.
  3. Power off the LPU to be replaced.

    Use either of the following methods:

    • Press and hold the OFL button on the panel of the LPU for five seconds until the OFL indicator turns on.

    • In the user view, run the power off slot slot-id command.

  4. Remove the cables from the LPU and label the cables to mark the corresponding interface numbers.
  5. Pull out the LPU to be replaced from the chassis.
    1. Put on the ESD wrist strap and connect the grounding terminal to the ESD jack on the rack.
    2. Using the Phillips screwdriver, turn the two captive screws counter-clockwise to loosen them, as shown in Figure 3-7 (1).
    3. Turn the ejector levers on the panel of the LPU outward and upward. When the ejector levers and the panel form a 45-degree angle, the LPU is removed from the backplane, as shown in Figure 3-7 (2).

      • Pull out the LPU slowly and smoothly to prevent it from hitting neighboring boards and affecting running boards.
      • Touching parts on the LPU when swapping it may damage the LPU.

    4. Hold the ejector levers on the panel of the LPU and pull out the LPU smoothly from the chassis along the guide rail of the slot. After the LPU protrudes from the chassis by roughly 40 cm, support the lower edge of the LPU with one hand and hold the panel of the LPU with the other hand. Then, pull out the LPU smoothly from the slot, as shown in Figure 3-7 (3).
    5. Place the removed LPU in the ESD bag.

      Figure 3-7  Removing an LPU

  6. Insert a new LPU into the chassis.
    1. Take out a new LPU from the ESD bag.

      • Pull out the LPU slowly and smoothly to prevent it from hitting neighboring boards and affecting running boards.
      • Touching parts on the LPU when swapping it may damage the LPU.

    2. Support the lower edge of the new LPU with one hand and hold the panel with the other hand. Then, insert the new LPU smoothly into the chassis along the guide rail of the slot. Stop sliding the LPU forward when the ejector lever on the front panel of the LPU reaches the chassis, as shown in Figure 3-8 (1).
    3. Turn the ejector levers on the LPU outward and upward to form a 45-degree angle, and at the same time push the LPU into the slot. Then, turn the ejector levers inward and downward until the panel of the LPU touches the frame, as shown in Figure 3-8 (2).
    4. Using the Phillips screwdriver, turn the two captive screws clockwise to tighten them, as shown in Figure 3-8 (3).

      Figure 3-8  Insert an LPU

  7. Connect the cables to the corresponding interfaces in the original sequence.
  8. Check the running status of the new LPU.

    Normally, after the new LPU is inserted into the chassis, the LPU automatically communicates with the MPU. In this case, check the running status of the new LPU in the following ways:
    • Check the RUN indicator on the panel of the LPU. If it is on (green), the LPU is working normally.
    • Check the alarms. If the system does not generate any alarm related to the new LPU, the LPU is working normally.
    • Run the display device command on the console interface. If the LPUs in the corresponding slots are working normally, the following is displayed:
    <sysname> display device
    NIP6860's Device status:
    Slot #    Type    Online    Register      Status      Primary
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    1         SPU        Present   Registered    Normal      NA
    2         SPU        Present   Registered    Normal      NA
    3         SPU        Present   Registered    Normal      NA
    4         SPU        Present   Registered    Normal      NA
    5         SPU        Present   Registered    Normal      NA
    6         LPU        Present   Registered    Normal      NA
    7         LPU        Present   Registered    Normal      NA
    8         LPU        Present   Registered    Normal      NA
    9         MPU        Present   NA            Normal      Master
    10        MPU        Present   Registered    Normal      Slave
    11        SFU        Present   Registered    Normal      NA
    12        SFU        Present   Registered    Normal      NA
    13        SFU        Present   Registered    Normal      NA
    14        CLK        Present   Registered    Normal      Master
    15        CLK        Present   Registered    Normal      Slave
    16        PWR     Present   Registered    Normal      NA
    17        PWR     Present   Registered    Normal      NA
    18        FAN        Present   Registered    Normal      NA
    19        FAN        Present   Registered    Normal      NA
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  9. Check service operations.

Follow-up Procedure

After replacing the LPU, collect all tools. If the replaced LPU is faulty, fill in the Repair Transmission Sheet and send the faulty module with the Repair Transmission Sheet to the equipment supplier or the specified repair service provider.

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Updated: 2019-01-04

Document ID: EDOC1100059253

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