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RRU HW version difference

RRU HW version difference

Created: Jun 19, 2020 11:54:06Latest reply: Jun 28, 2020 23:32:10 995 12 3 0 0
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Hi, 

We have two types of RRU,  see below information of  RRU.  

2nd RRU reboots frequently and can not  serve subscribers.   This RRUs used for LTE1800 (Band-3). 

We notice that only difference between this two RRU's  are HW version.   

 Need help,  what is difference  and why 2nd RRU frequently reboots? 


1st RRU  

Board Name: MRRU

Board Type: WD5MERUAC300

BOM Code: 02311BYE

Software Version:1J.7DA.10.009

Hardware Version:MRRU.HWEI.xAA129g00


2nd RRU

Board Name: MRRU

Board Type: WD5MERUAC300

BOM Code: 02311BYE

Software Version:1J.DFF.10.009

Hardware Version:MRRU.HWEI.xAA12VH00


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BetterMing
Created Jun 19, 2020 12:09:33

Dear user.
The information you give is too little. I can't judge whether it is due to antenna failure or restart due to the version problem.
It is recommended that you can upgrade the version. If the failure is not eliminated after the upgrade, it may be a device failure.

There are several reasons that may cause a restart:

1. It may be reset if the temperature is too high (>90 degrees).

2. On-site power supply problem.

3. Caused by equipment hardware problems.

4. There is a problem with the software.

5. The RRU transmit power is too large resulting in power down.

If you want to locate the cause, you need the base station log.


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zarcan
zarcan Created Jun 19, 2020 16:17:53 (0) (0)
How to upgrade RRU?  
BetterMing
BetterMing Reply zarcan  Created Jun 20, 2020 00:47:01 (0) (0)
We do not recommend customers to upgrade themselves, because this is a risky operation. We recommend that you can seek help from your local Huawei representative office. https://e.huawei.com/en/service-hotline-query  
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2#
little_fish
little_fish Admin Created Jun 19, 2020 11:55:33

Hello we are working on it.
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3#
BetterMing
BetterMing Created Jun 19, 2020 12:09:33

Dear user.
The information you give is too little. I can't judge whether it is due to antenna failure or restart due to the version problem.
It is recommended that you can upgrade the version. If the failure is not eliminated after the upgrade, it may be a device failure.

There are several reasons that may cause a restart:

1. It may be reset if the temperature is too high (>90 degrees).

2. On-site power supply problem.

3. Caused by equipment hardware problems.

4. There is a problem with the software.

5. The RRU transmit power is too large resulting in power down.

If you want to locate the cause, you need the base station log.


View more
  • x
  • convention：

zarcan
zarcan Created Jun 19, 2020 16:17:53 (0) (0)
How to upgrade RRU?  
BetterMing
BetterMing Reply zarcan  Created Jun 20, 2020 00:47:01 (0) (0)
We do not recommend customers to upgrade themselves, because this is a risky operation. We recommend that you can seek help from your local Huawei representative office. https://e.huawei.com/en/service-hotline-query  
(0) (0)
4#
zarcan
zarcan Created Jun 19, 2020 12:14:13

The alarm is RF Unit Maintenance Link Failure. 

I think its some think with HW version.  Because all  not working RRU's have same HW version. 


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5#
Mr.Jack
Mr.Jack Created Jun 19, 2020 12:53:38

Hello

you may check the https://info.support.huawei.com/wireless/global/Info_en.do -->> RRU family where you can compare and query a RRU specifications.
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zarcan
zarcan Created Jun 19, 2020 16:18:22 (0) (0)
No permission :(  
Mr.Jack
Mr.Jack Reply zarcan  Created Jun 19, 2020 18:43:31 (0) (0)
I think it's just for customer accounts  
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6#
egleesc
egleesc Created Jun 26, 2020 00:20:21

Great knowldge
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egleesc
egleesc Created Jun 26, 2020 00:20:32

thanks for take your time to share it!
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8#
cataleyagonzc
cataleyagonzc Created Jun 28, 2020 23:31:58

well done
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9#
cataleyagonzc
cataleyagonzc Created Jun 28, 2020 23:32:10

amazing job
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