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TP48200A-HX09A3, TP48200A-HX09A4, TBC300A-DCA3, TBC300A-DCA5, TBC300A-TCA2 Outdoor Power System User Manual

This document describes the DC power systems in terms of their features, configurations, components, and maintenance methods.
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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 TEC04C

Replacing the TEC04C

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

You only need to disconnect the power cable from the TEC control box, but do not need to disconnect the AC input for the system.

Procedure

  1. Disconnect the power from the TEC control box and record the cable information.

    1. Connect the ground cable to the ESD wrist strap and wear the ESD wrist strap and ESD gloves.
    2. Switch off the circuit breaker for the TEC control box on the DC PDU.
    3. Remove the power cable from the TEC control box.
    4. Record the position where the TEC control board connects to the signal cable, and then disconnect the signal cable.
    5. Unscrew the TEC control box and take down the TEC control box.
    6. Record the position on the TEC control board where the TEC04C power cable and signal cables connect to the TEC control board, disconnect the cables.

  2. Remove the TEC04C.

    1. Unscrew and remove the external cover from the cabinet door, as shown in Figure 4-23.
      Figure 4-23  Removing the external cover from the cabinet door

    2. Unscrew and remove the TEC04C, as shown in Figure 4-24.
      Figure 4-24  Removing the TEC04C

  3. Install a new TEC04C.

    1. Place the TEC04C and tighten the screws.
    2. Place the external cover onto the cabinet door, and secure the screws.

  4. Install the TEC control box.

    1. Connect the power cable and signal cables of the TEC04C to the TEC control board based on the recorded information.
    2. Tighten the screws to secure the TEC control box.
    3. Connect the signal cable to the TEC control box based on the recorded information.

  5. Connect and tighten the power cable to the TEC control box.
  6. Switch on the circuit breaker for the TEC control box on the DC PDU.
  7. Disconnect the ground cable from 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: EDOC1000036238

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