No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E V800R010C10SPC500 Installation Guide

This is NE40E V800R010C10SPC500 Installation Guide
Rate and give feedback:
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).
Checking the Grounding

Checking the Grounding

Good grounding ensures that the device works steadily and protects against lightning and interference. Before the installation, ensure that the grounding conditions meet the anticipated requirements.

Checking the Grounding in the Equipment Room

Check that the following grounding requirements are met in the equipment room:

  • The equipment room must be equipped with lightning-proof devices, such as a lightning arrester.
  • The ground of lightning-proof devices and the protection ground of the equipment room must be connected to the same ground busbar.
  • The ground resistance of the equipment room or the communication office (site) must not exceed 10 ohms, and must comply with national and industry standards.

Checking the Grounding of the Power Supply Device in the Equipment Room

Check that the power supply device meets the following grounding requirements:

  • The working ground and protection ground of the power supply device must be connected to the same ground busbar as the protection ground of the communication device. When the power supply device and the communication device are installed in the same equipment room, the two devices must be connected to the same protection ground bar.
  • The -48 V DC output positive terminal (+24 V DC output negative terminal) of the power supply device must be connected to the nearest ground terminal.
    NOTE:
    • If only one protection ground bar is available in the equipment room, both the PGND and BGND cables of the power supply device must be connected to this ground bar.
    • If two ground bars are available in the equipment room (a protection ground bar and a working ground bar), the PGND and BGND cables of the power supply device must be connected to the protection ground bar and the working ground bar respectively. The two ground bars must be connected to the same ground busbar.

Checking the Grounding of the Device

Check that the device meets the following grounding requirements:

  • Protection grounding must be implemented on communication devices and the accessory devices (mobile base stations, switches, and power devices) in the equipment room. The PGND cables of various devices in the communication office (site) must be connected to the ground busbar.
  • The -48 V (or +24 V) power cable and the RTN cable that are routed out from the power input terminals of the device must be connected to the -48 V (or +24 V) busbar and the RTN busbar of the PDU that is provided and used by the customer.
  • The PGND cable that is routed out from the main ground terminal of the device must be connected to the nearest protection ground bar.

Checking the Grounding of Signal Cables

Check that signal cables meet the following grounding requirements:

  • A shielded cable or a cable with metal jacket is recommended for the signal cable that is routed in to or out from the site. The free line in the cable must be grounded in the equipment room.
  • The shielded layer, metal jacket, or metal tube of the cable that is routed in to the site must be connected to the nearest protection ground bar in the equipment room.
Translation
Download
Updated: 2019-01-03

Document ID: EDOC1100055059

Views: 39401

Downloads: 283

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next