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TP48200A-DT19D1 Telecom Power User Manual

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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 a Fan Assembly

Replacing a Fan Assembly


  • Prepare an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the cabinet door key, and tools.
  • Check that the new fan is intact.


You need only to disconnect the fan power cable, instead of the AC input to the system.


  1. Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and ESD gloves.
  2. Disconnect the power cable from the UIM02C.

    1. Record the position where the UIM02C panel connects to the signal cables, and then disconnect the signal cables.
    2. Unscrew and then take out the UIM02C panel, as shown in Figure 4-8.
    3. Disconnect the -48 V power cable from the UIM02C backplane, as shown in Figure 4-9.

  3. Take out the fan assembly.

    1. Record the positions where cables connect to the fan assembly and then disconnect the cables.
    2. Unscrew and take out the fan assembly, as shown in Figure 4-11.
    Figure 4-11 Taking out the fan assembly

  4. Remove the fan.

    1. Unscrew and remove the cover from the fan assembly.
    2. Unscrew the fan fixing plate and remove the plate from the fan, as shown in Figure 4-12.
    3. Unscrew and remove the fan, as shown in Figure 4-13.
    Figure 4-12 Removing the cover and fan fixing plate from the fan

    Figure 4-13 Removing the fan

  5. Install a new fan.

    1. Properly place the fan into the fan assembly and tighten the screws for the fan.
    2. Tighten the screws that secure the fan fixing plate.
    3. Tighten the screws that secure the cover.

  6. Install the fan assembly.

    1. Push the fan assembly into the fan assembly slot and tighten the screws.
    2. Connect cables to the fan assembly based on the recorded positions.

  7. Install the UIM02C.

    1. Connect the -48 V power cable to the UIM02C backplane.
    2. Push in the UIM02C and tighten the screws.
    3. Connect the signal cables to the UIM02C panel based on the recorded position.

  8. Disconnect the ground cable from the ESD wrist strap, and take off the ESD wrist strap and ESD gloves.
Updated: 2019-11-27

Document ID: EDOC1000078784

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