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TP48200A-HT15D3 Outdoor Power System User Manual (Russia, Megafon)

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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 the TEC

Replacing the TEC

Prerequisites

  • You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, and the cabinet door key.

  • The new TEC is intact.

Context

Disconnect the power supply to the TEC control box, instead of the AC input to the power system.

Procedure

  1. Disconnect the power supply to the TEC control box, and record the cable information.

    1. Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD gloves.
    2. Switch off the TEC circuit breaker on the DC PDU.
    3. Record the positions of TEC power cables and signal cables on the TEC control board, and disconnect the cables.

  2. Remove the TEC.

    1. Unscrew and remove the cover on the cabinet door, as shown in Figure 4-19.
      Figure 4-19  Removing the cover from the cabinet door
    2. Unscrew and remove the TEC, as shown in Figure 4-20.
      Figure 4-20  Removing a TEC

  3. Install a new TEC.

    1. Place the TEC, and tighten the screws.
    2. Place the cover on the cabinet door, and tighten the screws.

  4. Connect the power cables to the TEC control box securely.
  5. Switch on the TEC circuit breaker on the DC PDU.
  6. Disconnect the ground cable for the ESD wrist strap, and take off the ESD wrist strap and ESD gloves.

Follow-up Procedure

Pack the removed component, and return it to Huawei local warehouse.

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Updated: 2019-03-05

Document ID: EDOC1000078967

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