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RFUSD_DELAY_UNEQUAL - Hel...

RFUSD_DELAY_UNEQUAL - Help

Created: Jun 16, 2020 06:15:43Latest reply: Aug 25, 2021 11:33:04 507 16 0 0 0
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RFUSD_DELAY_UNEQUAL


I'm receiving this Alarm , and ther's no error in my network , RFUSD data flow is normal , 

so is there any way to Acknowledge this Alarm using U2000


thanks 

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(1) (0)
BetterMing
Created Jun 16, 2020 06:55:38

Hello, dear.

You can refer to the following information:

RFUSD_DELAY_UNEQUAL

Description

The RFUSD_DELAY_UNEQUAL alarm indicates that the delay of main and diversity signals is inconsistent.

Attribute

Alarm SeverityAlarm Type
CriticalEquipment alarm

Parameters

None

Impact on the System

When this alarm occurs, links on air interfaces contain bit errors or services on the links are unavailable.

Possible Causes

  • Cause 1: Delay compensation is disabled.

  • Cause 2: Difference between the heights of main and diversity antennas is too large.

  • Cause 3: The RFU-SD hardware is faulty.

Procedure

  1. Cause 1: Delay compensation is disabled.

    1. Check whether delay compensation is enabled. If no, enable the function.

  2. Cause 2: Difference between the heights of main and diversity antennas is too large.

    1. Check whether heights of the antennas complies with the network plan. If no, adjust the antenna height.

  3. Cause 3: The RFU-SD hardware is faulty.

    1. Replace the RFU-SD.

Thanks!


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EngBakaal
EngBakaal Created Jun 16, 2020 07:24:23 (0) (0)
a. Check whether delay compensation is enabled. If no, enable the function. ..

so how Can I check how delay compensation is enabled or disabled using U2000

thanks  
All Answers
(1) (0)
2#
olive.zhao
olive.zhao Admin Created Jun 16, 2020 06:17:05

Hello, dear!
It's nice to meet you in the community.
We're working on your problem. Please be patient.
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(1) (0)
3#
BetterMing
BetterMing Created Jun 16, 2020 06:18:16

Hello, EngBakaal.
Can you tell me your device model?
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EngBakaal
EngBakaal Created Jun 16, 2020 06:27:33 (0) (0)
what do you mean by Model ,
this is the RFU description ..
Description=Function Module,RTN XMC-LH,R110000SLA,11G,SD,Low site,10675MHz,11215MHz,11199MHz,11745MHz,Without doc,WR-75,H01

thanks  
(0) (0)
4#
EngBakaal
EngBakaal Created Jun 16, 2020 06:23:25

what do you mean by Model ,
this is the RFU description ..
Description=Function Module,RTN XMC-LH,R110000SLA,11G,SD,Low site,10675MHz,11215MHz,11199MHz,11745MHz,Without doc,WR-75,H01

thanks
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BetterMing
BetterMing Created Jun 16, 2020 06:33:51 (0) (0)
Which device are you using for RTN? RTN910? Or other.  
EngBakaal
EngBakaal Reply BetterMing  Created Jun 16, 2020 06:56:04 (0) (0)
we're using RTN980L  
(1) (0)
5#
BetterMing
BetterMing Created Jun 16, 2020 06:55:38

Hello, dear.

You can refer to the following information:

RFUSD_DELAY_UNEQUAL

Description

The RFUSD_DELAY_UNEQUAL alarm indicates that the delay of main and diversity signals is inconsistent.

Attribute

Alarm SeverityAlarm Type
CriticalEquipment alarm

Parameters

None

Impact on the System

When this alarm occurs, links on air interfaces contain bit errors or services on the links are unavailable.

Possible Causes

  • Cause 1: Delay compensation is disabled.

  • Cause 2: Difference between the heights of main and diversity antennas is too large.

  • Cause 3: The RFU-SD hardware is faulty.

Procedure

  1. Cause 1: Delay compensation is disabled.

    1. Check whether delay compensation is enabled. If no, enable the function.

  2. Cause 2: Difference between the heights of main and diversity antennas is too large.

    1. Check whether heights of the antennas complies with the network plan. If no, adjust the antenna height.

  3. Cause 3: The RFU-SD hardware is faulty.

    1. Replace the RFU-SD.

Thanks!


View more
  • x
  • convention：

EngBakaal
EngBakaal Created Jun 16, 2020 07:24:23 (0) (0)
a. Check whether delay compensation is enabled. If no, enable the function. ..

so how Can I check how delay compensation is enabled or disabled using U2000

thanks  
(1) (0)
6#
BetterMing
BetterMing Created Jun 16, 2020 08:20:18

You can refer to the following information:

Setting the Cable Transmission Offset for External Time Ports

This section describes how to compensate transmission delay of external time ports.

Prerequisites

  • You must be an NM user with NE administrator authority or higher.

  • NE Clock Type is set to BC, OC, or TC+BC for an NE, and Interface Mode in External Time Interface is set to External Time Interface.

note_3.0-en-us.png

  • If IEEE 1588v2 is used, NE Clock Type is BC, OC, or TC+BC.

  • If ITU-T G.8275.1 is used, NE Clock Type is T-BC.

Tools, Equipment, and Materials

NCE

note_3.0-en-us.png

Web LCT also supports this operation and the steps are the same as those on the NCE.

Procedure

  1. In the NE Explorer, select the required NE from the Object Tree and choose Configuration > Clock > PTP Clock > External Time Interface from the Function Tree.

  2. Click the Cable Transmitting Distance tab.

  3. Set parameters for the cable transmission distance according to the planning information.en-us_image_0188446809.png

  4. Click Apply.


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EngBakaal
EngBakaal Created Jun 17, 2020 06:03:35 (0) (0)
thank you for your helping , but this doesn't work for me  
BetterMing
BetterMing Reply EngBakaal  Created Jun 17, 2020 06:32:03 (0) (0)
Perhaps a false alarm was generated. I provide you with the contact information of Huawei's local representative office. You can ask the local representative office for more technical support.
https://e.huawei.com/en/service-hotline-query  
EngBakaal
EngBakaal Reply BetterMing  Created Jun 17, 2020 07:04:17 (0) (0)
thank you very much bro ..!!  
(0) (0)
7#
paoladr
paoladr Created Jun 19, 2020 23:32:11

Great knowldge
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(1) (0)
8#
paoladr
paoladr Created Jun 19, 2020 23:32:31

excellent
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(0) (0)
9#
Ahmed_48
Ahmed_48 Created Aug 25, 2021 11:33:04

Dears

I have like this alarm it appeared in one RFUSD and the technique used 4+0 8G in RTN890L
the farend site that opposite this RFUSD it receive signal but the RFUSD that has the alarm not receive signal from opposite RFUSD.
This mean that the RFUSD is faulty?
Thanks a lot
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BetterMing
BetterMing Created Aug 25, 2021 12:59:28 (1) (0)
The device on the other end is not receiving, you may need to check if the link is OK.  
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