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Data errors occur by larg...

Data errors occur by large pigtail attenuation Highlighted

Created: Jul 17, 2020 09:55:46Latest reply: Jul 31, 2021 02:17:17 1174 48 9 0 1

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Hi there!

This time, I will share with you a case about data errors that occur by large pigtail attenuation.

Problem Description

At a site, When the gain of the OAU board is set, the gain range is much smaller than the actual gain range.

Handling Process

The OAU101 board is used and the gain ranges from 20dB to 33 dB. However, the gain cannot be set to a value greater than 23.5 dB.

After our on-site inspection, it is found that the pigtail loss from the TDC port to the RDC port of the OAU board is particularly large. After replacing the pigtail, the board can be set to the value within the gain range.

Root Cause

The attenuation of the pigtail between the TDC and RDC ports on the OAU board is excessively large, As a result, the gain cannot be set to the maximum value of the actual range.

Solution

Replace the pigtail between the TDC and RDC ports on the OAU board.

Summary

If the gain of the OA board cannot be set to a large value, check whether the pigtail between the TDC and RDC ports is faulty at first.

That's all, welcome everyone to leave a message and exchange in the comment area!

Thank you！

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Chenxintao Admin Created Jul 17, 2020 10:04:35

Thanks for sharing!

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abood_1419 Created Dec 24, 2020 18:14:39 (0) (0)

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^3#

Unicef

MVE Created Jul 17, 2020 11:08:06

Note with thanks

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^4#

wissal

MVE Created Jul 17, 2020 11:46:18

Interesting solution!

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abood_1419 Created Dec 24, 2020 18:14:55 (0) (0)

Saqib123 Created Apr 11, 2021 18:29:49 (0) (0)

azkasaqib Reply Saqib123 Created Jun 4, 2021 18:02:58 (0) (0)

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^5#

GladysP

Created Jul 18, 2020 13:28:32

Excellent!!

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Ayeshaali Created Apr 9, 2021 16:48:04 (0) (0)

Irshadhussain Reply Ayeshaali Created May 30, 2021 17:56:29 (0) (0)

Irshadhussain Reply Ayeshaali Created May 30, 2021 17:56:36 (0) (0)

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^6#

jahangirgp

Created Jul 18, 2020 14:40:34

It seems to me this scenario is also true if DCM is used in between TDC and RDC board. Thanks for sharing

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liqiang185 Created Jul 20, 2020 05:00:52 (0) (0)
Yes, my friend! If the transmission distance is long, a dispersion compensation board or module must be added between the TDC and RDC.
However, the dispersion problem has been resolved on OSN 9800s.

Saqib123 Created Apr 11, 2021 18:29:40 (0) (0)

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^7#

Pico_Tico_2018

Created Jul 21, 2020 15:19:48

Excellent solution.

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user_3915171 Created Jan 23, 2021 04:00:41 (0) (0)

Ayeshaali Created Apr 9, 2021 16:48:13 (0) (0)

azkasaqib Reply Ayeshaali Created May 30, 2021 17:29:57 (0) (0)

azkasaqib Reply Ayeshaali Created May 30, 2021 17:30:05 (0) (0)

azkasaqib Reply azkasaqib Created Jun 4, 2021 18:03:06 (0) (0)

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^8#

Malik3000

MVE Created Aug 14, 2020 16:04:58

Thanks for sharing

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Chanbora Created Jul 5, 2021 05:26:03 (0) (0)

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^9#

Malik3000

MVE Created Aug 14, 2020 16:05:17

Good knowldege

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^10#

abood_1419

Created Dec 24, 2020 18:15:17

Thanks for sharing

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