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MA5600T, MA5603T, and MA5608T Hardware Description 25

This manual describes the Huawei MA5600T, MA5603T, and MA5608T hardware specifications, such as dimensions, weight, power consumption, capacity, structure, chassis, slots, boards, power modules, and optical modules.
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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).
Grounding

Grounding

This topic describes the grounding principle of the MA5603T service subrack and the position of the ground point.

Connect the ground cables properly to guarantee protection against lightening and interference for the MA5603T. When a Huawei cabinet is installed, the service subrack is grounded through mounting ears and therefore no separate ground cables are required. When a third-party cabinet is installed, the separate ground cable needs to be connected to the service subrack and ground point on the cabinet.

The power input end of the MA5603T has a noise filter. The center ground of the noise filter connects to the service subrack, called the service subrack shell ground, that is, the protection ground. Ground the service subrack shell securely so that the influence electricity, leakage electricity can flow to the ground, improving the protection against electromagnetic interference.

Use a ground cable to connect the ground point of the service subrack shell to the ground bar of the telecommunications room or to the ground directly. It is recommended that the grounding resistance of the telecommunications room should be less than 10 ohms. Refer to the local standards to ground the service subrack.

The ground point of the service subrack shell is on the front of the service subrack, as shown in Figure 2-24.

Figure 2-24  Grounding of the service subrack

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Updated: 2019-03-18

Document ID: EDOC1000060621

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