RF Loop test fault in Ericsson RBS2206

This topic has 30 replies, 1 voice, and was last updated 11 years, 11 months ago by Oscar D. Tawiah.

Viewing 15 posts - 16 through 30 (of 31 total)

← 1 2 3 →

Author

Posts
2nd September 2009 at 10:19 #57616

Abhilash
Guest

Last option left is to check feeder connection at the antenna end. Do you see any alarm other than this in that particular sector???? any diversity related alarms?????

15th October 2009 at 16:30 #57617

nms
Guest

i have the same faule and the replacement unit mentioned is the RBS itself

16th October 2009 at 07:42 #57618

Bin
Guest

I have a problem “RF loop test fault” with RBS2206 and one TRX was blocked. I’ve replaced dTRU, DXU, Y-link, Rx & Tx cable, but the problem still not resolved yet.
Does anyone know the principle of “RF loop test”? so we can know which part of RBS is damaged.

Thanks!

22nd October 2009 at 14:30 #57619

Dieudonné
Guest

I have liked configure connection BSC/TRC-MWG-MSC Ericson. Can you help me.

Information

BSC/TRC:SP=3-7000
MGW:SP=3-3000
MSC:SP=3-4000

Using this DIP for the signalling

34RAL2 RALT2-1088&&-1194
35RAL2 RALT2-1120&&-1515
36RAL2 RALT2-1152&&-1836
37RAL2 RALT2-1184&&-2157
38RAL2 RALT2-1216&&-2478
39RAL2 RALT2-1248&&-1279

Thank you.

Best regards

23rd October 2009 at 17:28 #57620

Dmitriy
Guest

I have the same problem – RF loop test with RBS 2206 on cell C. I have replaced dTRU, CDU, CXU, DXU,Y-link, Tx-Rx cables, CDU-bus. Cheked IDB. VSWR is normal, but no results.

Help!

13th December 2009 at 12:53 #57621

marimuthupandian
Guest

Rf loop test fault rectify solution .1, faulty card change the sector .2, change the remote area

2nd August 2010 at 15:00 #57622

vikas
Guest

plzz follow some points….

1.swap the feeders of A sector with B sector.then see fault moves in B sector or still in A sector.

2.if fault moves in B sector then there is problem in the upper part means may be jumper,feeder,anteena.

3.do this then tell me…

16th August 2011 at 10:20 #57623

ferdinand
Guest

i have challanging task, i am working on RBS2206 WHEN FEEDER CABLE disconnected DTRU fail to detect still work on operatonal.what is the cause, is it fault?

21st August 2011 at 16:59 #57624

jamil
Guest

Dear ferdinand
The RBS still transmit the frequency

8th February 2012 at 07:03 #57625

francis nyarkoh
Guest

I have a problem “RF loop test fault” with RBS2206 and one TRX was blocked. I’ve replaced dTRU, DXU, Y-link, Rx & Tx cable, but the problem still not resolved yet.
Does anyone know the principle of “RF loop test”? so we can know which part of RBS is damaged.
Please help..

24th February 2012 at 08:10 #57626

FRANCIS NYARKOH
Guest

I HAVE CHANGE THE JUMPERS GOING TO THE ANTENNA, WITHIN TWO WEEKS NOW THE FAULT HAS NOT APPEAR.THANKS GUYS…

3rd May 2012 at 10:42 #57627

MNA
Guest

I am a field maintenance technician,i work on Traffic node and RBS.I have one problem;in our BSC i have remarked that three TRXs have blocked for one site.i checked in that site there is no alarm in the RBS but from the BSC the 3 trxs are still blocked.Please i need a help to resolve this problem.

Thank you and best regards!

4th May 2012 at 18:05 #57628

jamil
Guest

hi MNA did you see the alarm list at EM and did you chick the VSWR

9th May 2012 at 12:23 #57629

francis damtse-nyarkoh
Guest

Im using a tri- band antenna for all the 3 sector but sector 1 antenna was faulty and i replace it, after the replacement that sector is not picking traffic,I check the connections from top i release that there was a swap in the jumper connections,I have corrected that but still the sector is not picking traffic.Please I need help.

10th May 2012 at 18:10 #57630

jamil
Guest

hi francis damtse
2G OR 3G SECTOR you still have problem in feeder chick the jumper againj
Author

Posts