Antenna Swap

7/30/2019 Antenna Swap

1/24

*** Critical

** Major

* Minor

Sr. No. Severity Alarm Description Object Affected

1

* 7208 LOCAL BLOCKBCF, or BTS, or TRX

2 Customer

Define7401 EXTERNAL ALARM

7401 - 7424, EXTERNAL

ALARM 1 - 24

BCF

3

***BB2, BOI, DVxx, PWSx, RTxx, TSxx,

Antenna/Cable

BB2, BOI, DVxx, PWSx, RTxx, TSxx,

Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable

7600 BCF FAULTY


2/24


Antenna/Cable

4

**BOI, Cabinet, DVxx, PWSx, RTxx,

SiSu

BOI, Cabinet, DVxx, PWSx, RTxx,

SiSu


SiSu


SiSu


SiSu


SiSu

5 * BOI, Cabinet, CCUA, VXxx, HETA,PWSx, SiSu

BOI, Cabinet, CCUA, VXxx, HETA,

PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu

7601 BCF OPERATION

DEGRADED

7602 BCF NOTIFICATION


3/24


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSuBOI, Cabinet, CCUA, VXxx, HETA,

PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu


PWSx, SiSu

BOI, Cabinet, CCUA, VXxx, HETA,PWSx, SiSu

6

*** 7603 BTS FAULTYBB2, DVxx, RTxx, TSxx,

Antenna/Cable


4/24

7

**DVxx, RTxx

DVxx, RTxx

DVxx, RTxx

8

*RTxx

RTxx

RTxx

9

**BB2, DVxx, RTxx, TSxx,

Antenna/Cable

BB2, DVxx, RTxx, TSxx,

Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable

7604 BTS OPERATION

DEGRADED

7605 BTS NOTIFICATION

7606 TRX FAULTY


5/24


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable

BB2, DVxx, RTxx, TSxx,Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


Antenna/Cable


6/24


Antenna/Cable


Antenna/Cable


Antenna/Cable

10

**DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

7607 TRX OPERATION

DEGRADED


7/24

DVxx, MHA, RTxx

DVxx, MHA, RTxx

DVxx, MHA, RTxx

11

*BB2, BOI, TSxx

BB2, BOI, TSxx

BB2, BOI, TSxx

BB2, BOI, TSxx

BB2, BOI, TSxx

BB2, BOI, TSxx

12

*** 7609 TRE FAULTYVXxx

13

*

7615 RTS IN TEST USE TSxx

14

* 7616 OSCILLATORADJUSTMENT

TEMPORARILY

INTERRUPTED

BOI

7608 TRX NOTIFICATION


8/24

15

** 7617 SEVERAL CALLSDROPPED DUE PROBLEM

WITH TRANSCODER

BB2, TSxx

16

* 7622 CABINET OPENCabinet

17

* 7801 MMI CONNECTED TOBASE STATION

BOI

18

** 7995 MAINS BREAKDOWNWITH BATTERY BACK-UP

SiSu, BBUx

Prepared By: Amlan Roy


9/24

Alarm

Cancelling

Fault Reason

Automatic No fault reason text with the alarm. Nokia UltraSite EDGE Base

Station BTS object is blocked with Nokia BTS Manager.

Automatic No fault reason text with the alarm.

This is an external user-definable alarm.

Automatic Power unit output voltage fault.

Automatic Power unit input voltage fault.

Automatic No connection to power unit.

Automatic Oven oscillator is broken.

Automatic Base station synchronisation failed.

Automatic BOI temperature is dangerously high.


10/24

Automatic Other faults.

Automatic Power unit temperature is dangerously high.

Automatic Transmission unit temperature is dangerously high.

Automatic Difference between PCM and base station frequency reference.

Automatic Flash operation failed in BOI or TRX.

Automatic BOI detected that the site support is dumb.


Automatic BOI temperature is low.

Automatic Power unit temperature is low.

Automatic Transmission unit temperature is low.

Automatic BOI has lost connection to temperature sensor.

Automatic Power unit has lost connection to temperature sensor.


11/24

Automatic Transmission unit has lost connection to temperature sensor.

Automatic Cooling fan is broken.

Automatic Cooling fan speed has reduced from the set speed.

Automatic Cabinet fan speed has reduced from the set speed.

Automatic Heater is broken.

Automatic Power unit output voltage fault.

Automatic Power unit input voltage fault.

Automatic Common rack PWS I2C bus is jammed.

Automatic Common rack EAC I2C bus is jammed.

Automatic TSxx rack I2C bus is jammed.

Automatic CCUA PSM alarm 1



Automatic No connection to power unit.

Automatic Mismatch between BSC/MMI configuration file and the actualconfiguration.



12/24

Automatic Remote tune combiner temperature is dangerously high.

Automatic Remote tune combiner temperature is low.


Automatic Remote tune combiner flash checksum is invalid and the code is

corrupted.

Automatic Cavity stepper motor cannot tune the remote tune combiner.

Automatic Remote tune combiner has lost connection to temperature sensor.

Automatic Antenna connection faulty.

Automatic Fault in VSWR antenna monitoring.

Automatic Failure detected during TRX configuring.

Automatic BOI detected that connection to TRX is lost.

Automatic Failure in 26 MHz clock input.

Automatic BOI or TRX has detected a failure in the incoming frame clock signal.

Automatic Interface problems between O&M and DSP SW.

Automatic Failure in internal DSP monitoring loop.


13/24

Automatic The synthesizer in remote tune combiner is faulty.

Automatic The controller in remote tune combiner is faulty.

Automatic The tuning of a cavity has failed in remote tune combiner.

Automatic Cavity reset has failed, cavity is not available in remote tune

combiner.

Automatic Tuning carrier is not detected in remote tune combiner.

Automatic LNA main branch in remote tune combiner is faulty.

Automatic LNA diversity branch in remote tune combiner is faulty.

Automatic The reflected power of remote tune combiner is too high.

Automatic Software downloading to remote tune combiner failed.

Automatic Remote tune combiner initialisation failed.

Automatic No connection to remote tune combiner.

Automatic 1st branch LNA in Dual Variable Gain Duplex Unit is faulty.

Automatic 2nd branch LNA in Dual Variable Gain Duplex Unit is faulty.

Automatic No connection to Dual Variable Gain Duplex Unit.

Automatic BB2 temperature is dangerously high.

Automatic TSxx temperature is dangerously high.


14/24

Automatic There is disturbance in the serial DL bus or bus is broken.

Automatic No data is received from DIBA Asic traffic channels to CHDSP.


Automatic Flash operation failed in BOI or TRX.

Automatic Remote tune combiner controller is faulty.

Automatic The reflected power of remote tune combiner is too high.

Automatic LNA Main branch in remote tune combiner is faulty.

Automatic LNA Diversity branch in remote tune combiner is faulty.

Automatic The synthesizer in remote tune combiner is faulty.

Automatic The controller in remote tune combiner is faulty.

Automatic Performance of the main branch LNA in remote tune combiner is

degraded.

Automatic Performance of the diversity branch LNA in remote tune combiner is

degraded.

Automatic 1st branch LNA in Dual Variable Gain Duplex Unit is faulty.

Automatic 2nd branch LNA in Dual Variable Gain Duplex Unit is faulty.

Automatic Performance of the 1st branch LNA in Dual Variable Gain Duplex Unit

is degraded.

Automatic Performance of the 2nd branch LNA in Dual Variable Gain Duplex

Unit is degraded.

Automatic The main RX branch IF synthesizer is not locked.


15/24

Automatic The diversity RX branch IF synthesizer is not locked.

Automatic Fault in the chain between power unit and MHA.

Automatic Fault in VSWR antenna monitoring.

Automatic TSxx internal I2C bus is jammed.

Automatic Impossible to execute TRX loop.

Automatic BB2 temperature is low.

Automatic TSxx temperature is low.

Automatic BB2 has lost connection to temperature sensor.

Automatic TSxx has lost connection to temperature sensor.

Manual/Automati

c.

BOI detected that connection to transmission unit is lost.


Internal O&M SW is testing the timeslots during TRX test.

Automatic Oven oscillator adjustment function interrupted.


16/24

Automatic There is an error with the connection between the BTS and the

transcoder.

Automatic Cabinet door is open.


Nokia BTS Manager is connected to Nokia UltraSite EDGE Base

Station.



17/24

Corrective Action Preventive Action

1. Unlock BCF/ BTS/ TRX from Software. 1. Engineer should take care while locking and unlocking BCF/ BTS/

TRX.

1.Check the settings at the BSC.

2.Check the cable connected to the Interface

Module.

3.Check the unit connected to the external alarm

line.

4.If all of the above are OK, check the Interface

Module and replace it if faulty.

1. Engineer should clear those alarm after integration of site.

1.Replace all faulty power units.

More than one power unit is broken, or there is

only one power unit in the configuration.

1. Ensure the LED indication on power card before switching it ON. If its

is RED then there is fault in Power Card Itself, If it is Orange Then there

is no fault in Power card.




1. check the Input Voltage and check the polarity before switching ON

the Power Card.




1. check the Input Voltage and check the polarity before switching ON

the Power Card.

1.Replace the BOI. 1. check the back panal pins and back panal of BOI card for any

damage.

1.Check the synchronisation cabling.

2.If the cabling is OK, replace the BOI.

3.Reset BCF.

1. for syncronization always switch ON the Slave BTS first and then the

Master BTS. If the Problem persist replace the BOI.

1.Ensure that the ambient temperature of the

base station is within specified limits.

2.Check the cabinet fans.

3.If they are OK, replace the BOI.

1. Before Integration of BTS make sure there is proper vantelation and

AC should work properly. 2. Also make sure the proper working of

Cabinet Fans.


18/24

1.Check whether either of the following alarms is

active:

7606 TRX FAULTY

7603 BTS FAULTY

and follow the instructions given for the active

alarm(s). If necessary, replace all faulty units

indicated in the active alarm(s).

1. Always give Soft Reset first if this problem arises.




3.Replace the faulty power unit(s).




3.Replace the faulty transmission unit.

1.Check the cabling.

2.If the cabling is OK, replace the BOI.

1 Trainning given to all our Engineers on use of FREQUENCY

COUNTER, to aliminate this alarm.

1.Replace the BOI.

1.Check the SISU cabinet and the connection.

1.Check whether one or several of the following

alarms are active:

7606 TRX FAULTY

7603 BTS FAULTY

7607 TRX OPERATION DEGRADED

7604 BTS OPERATION DEGRADED


alarm(s).

1. Tighten the SMA connectors on the hardware installed on the BTS

and then reset the OMU of that BCF.

1.Ensure that the ambient temperature of thebase station is within specified limits.

2.Check the cabinet heater if it is installed.

3.Replace the BOI.




3.Replace the power unit.




3.Replace the transmission unit.

1.Temperature sensor is probably broken.

Temperature changes cannot be measured.

Replace the BOI.



Replace the power unit.


19/24



Replace the transmission unit.

1.If something has jammed the cooling fan unit,

remove the jamming object. Otherwise replace

the fan unit.

1.If something has jammed the cooling fan unit,


the fan unit.

1.If something has jammed the cabinet fan unit,


the fan unit.

1.Replace the faulty heater, or the heater is not

installed although it is defined in the

configuration file, therefore an alarm is issued.

Install the heater.

1.Replace the faulty power unit.

Other power units are still functioning.

1.Replace the faulty power unit.

Other power units are still functioning.1.Check the power unit(s) and power

connections, and replace if faulty.

1. Check before installing the card for any external damage.

1.If the cabling is OK, replace the Interface

Module.

1. Check before installing the card for any external damage.

1.Check the DVxx and cabling, and replace if

necessary.

2.Check the TSxx, and replace if faulty.

3.Replace the faulty RFU backplane.

1. Check before installing the card and cables and RFU backpanal for

any external damage.

1.Use the Node Manager software to check the

active SISU alarms and follow the instructions

given in the SISU operating manual.







1.Check if the power unit is switched off.

2.If the power unit is on, replace the faulty power

unit.

1.Check the base station configuration and theconfiguration file. Make necessary corrections.

1. Allways while commissioning the BTS send the Hardwareconfiguration first to the BTS with the help of software.

1.Check whether the following alarm is active:

7606 TRX FAULTY

and follow the instructions given for the alarm. If

necessary, replace all faulty units indicated in the

active alarm(s).


20/24




3.Replace the remote tune combiner.





1.Check whether either of the following alarms is

active:

7606 TRX FAULTY

7607 TRX OPERATION DEGRADED


alarm(s).

1.Reset BCF.

2.If the fault reappears, replace the remote tune

combiner.

1.Reset BCF.


combiner.


1.Check the antenna and cabling. If either the

antenna or cabling are faulty, replace the faulty

units and reset TRX to cancel the alarm.

2.If the antenna and cabling are OK, the TSxx is

faulty. Replace the faulty TSxx.

1. trainning on VSWR measurement on TI equipment given to all the

Engineers and Technicians. 2. Before connecting the RF feeder to the

DVxx check the VSWR of RF feeder and make sure the Value should

be well lower than the desired value. 3. thighten the cabling connection

on all the cards especially on DVxx card and TX part of TSxx card.






1. trainning on VSWR measurement on TI equipment given to all the

Engineers and Technicians. 2. Before connecting the RF feeder to the

DVxx check the VSWR of RF feeder and make sure the Value should

be well lower than the desired value. 3. thighten the cabling connection

on all the cards especially on DVxx card and TX part of TSxx card.

1.The TSxx is either faulty or its frequency band

is different from the one that was configured into

BSC.

Replace the TSxx with a functional TSxx or with

another TSxx with correct frequency band.

1.Check the BTS configuration and install the

BB2 if it is missing.

1.If all TRXs indicate this fault, replace the BOI.

2.If only one TRX indicates this fault, replace the

faulty BB2.

1.If all TRXs indicate this fault, replace the BOI.

2.If only one TRX indicates this fault, replace the

faulty BB2.

1.Reset the TRX.

2.If the fault reappears, replace the BB2.

1.Reset the TRX.

2.If the fault reappears, replace the BB2.


21/24

1.Replace the remote tune combiner that is

connected to the alarming TRX.

1.Replace the remote tune combiner that is

connected to the alarming TRX.

1.Check the remote tune combiner cabling.

2.If cabling is OK, replace the remote tune

combiner connected to the alarming TRX.1.Reset BCF.


combiner connected to the alarming TRX.

1.Replace the faulty TRX.


combiner connected to the alarming TRX.

1.Both the main branch and the diversity branch

are faulty.

Replace the remote tune combiner connected to

the alarming TRX.

1.Both the main branch and the diversity branchare faulty.

Replace the remote tune combiner connected to

the alarming TRX.

1.Check the antenna connection to the remote

tune combiner.

2.If the antenna connection is OK, replace the

remote tune combiner.

1.Reset BCF.


combiner.

1.Reset BCF.


combiner.1.Check that the remote tune combiner is

properly connected.

2.If the connection is OK, replace the remote

tune combiner.

1.2nd branch is not in use.

Activate the 2nd branch or replace the DVxx.

1.1st branch is not in use.

Activate the 1st branch or replace the DVxx.

1.Check the BTS configuration and install the

DVxx if it is missing.




3.Replace the BB2.




3.Replace the faulty TSxx.


22/24

1.TSxx is not properly installed or is missing.

Install it properly.

2.TSxx is broken.

Replace it.

1.Replace the BB2.

1.Replace the faulty TSxx.

1.Replace the BB2.


1.Check the antenna connection to the remote

tune combiner.

2.If the antenna connection is OK, replace the

remote tune combiner.Diversity branch is still working and calls are

getting through.


Diversity branch is still working and calls are

getting through.


Main branch is still working and calls are getting

through.



getting through.



getting through.



getting through.



getting through.

1.Replace the DVxx.

2nd branch is still working and calls are getting

through.

1.Replace the DVxx.

1st branch is still working and calls are getting

through.

1.Replace the DVxx.

2nd branch is still working and calls are getting

through.

1.Replace the DVxx.

1st branch is still working and calls are getting

through.

1.Replace the TSxx.


getting through.


23/24

1.Replace the TSxx.

Main branch is still working and calls are getting

through.

1.Check the chain between the power unit and

the MHA.

2.If the chain is OK, replace the MHA.






Diversity RX branch is still working and calls are

getting through.

1.Reset the TRX.

2.If the fault reappears, replace the TSxx.

1. taking care while installing the TSxx card. Do not give excessive force

to jackin the card.

1.Reset the TRX.

2.If the fault reappears, replace the TSxx.

1. properly set the parameters while testing TRX loop. And before

checking another TRX loop, normalise the first TRX loop.

1.Replace the BB2.

1.Replace the TSxx.



Replace the BB2.



Replace the TSxx.

1.If the alarm is seen at the BSC, the

transmission unit is not working properly.

However, if the base station otherwise operates

properly, there is no need for immediate repair.

The transmission alarms are not reported to the

BSC.

2.If the alarm is seen on Nokia BTS Manager

only, the transmission unit is not operating.

Reset BCF.

3.If the alarm reappears after BCF reset, switch

the cabinet power off and on.

4.If the alarm reappears after the recovery

actions above, replace the faulty transmission

plug-in unit.

1.No actions required. 1.No actions required.

1.Check the Abis connection.

2.If the Abis connection is OK, replace the BOI.

1. properly install Cards.


24/24

1.Check the transmission path between the base

station and the transcoder.

1. Before patching make ensure there is no errors on corresponing

TCSM and check loop break test too.

1.Ensure the cabinet door is properly closed and

secured.

1.After completion of job, lock the cabinet properly.

1. Connect the BTS Manager to the BTS and

then properly exit from the BTS.

1. Instead of directly quiting from the BTS manager, go to File menu and

then click the exit option on it to eliminate this alarm.

1.Check the mains supply.

2.If the mains supply is OK, check the cabling

between the BTS and the BBUx.

3.If the cabling is OK, replace the BBUx.

Date post:	14-Apr-2018
Category:	Documents
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