DAS1 boards cannot be configured at an OLA site

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1. A built-in FIU is configured on the DAS1 board and an extra FIU board must also be configured for the OLA site. The configuration is asymmetric.
2. The DAS1 board has only one variant (OAU101), and therefore cannot meet the flexible configuration requirements of OLA sites.

Other related questions:
Benefits of using OSN 9800 at OLA sites
OSN 9800 is used at OLA sites to improve the electrical-layer cross-connect capacity. OSN 8800/6800 can also be used, but larger capacity and higher bandwidth are available using OSN 9800.

Participants at the TE30 site cannot hear the speaking site, while other sites can hear. Why?
Participants at the TE30 site cannot hear the speaking site, while other sites can hear. Cause: A self-loop or loopback test is being performed at the local site. Troubleshooting: Stop all self-loop or loopback tests.

Whether the FIU and SC1 boards can be configured at one site and the SFIU and SC1 boards can be configured at the other site when an optical supervisory channel exists between the two sites
No. The SFIU board must be used with the ST2 board. The SFIU board combines bidirectional optical supervisory signals of the ST2 board and transmits the signals in a single fiber, avoiding commissioning and compensation for IEEE 1588v2 signals.

The TE30 cannot hear the chair site but other sites can hear the chair site
Possible cause: A loopback test is being performed at the local site. Troubleshooting: Stop all local and remote loopback tests.

Board registration failure troubleshooting
  1. Check whether the board is installed properly.

    Run the display device command to check whether the Online field is Present. If not, the board is not installed properly. Reinstall the board or install the board into another slot.

  2. Check whether the board is compatible with the device version.

    Run the display elabel command to check the BOM field of the board. You can determine whether the board is compatible with the device version based on the value of the BOM field. If the board is compatible with the device version, upgrade the device version.

  3. If the fault persists, contact Huawei technical support personnel.

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