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1 BSC
2 RNC
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3 TRANSMISSION
4 BTS
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OSS connectivity down - both x.25 down
One X.25 down
NSEI Down
BVCI Down
Zero Voice calls on particular Cell
Unit re-start
SIGNALLING LINK OVERLOAD
SIGNALLING LINK DOWN
SIGNALLING LINK ACTIVATION OR RESTORATION FAILURE
SIGNALLING LINK SET DOWN
GPRS/EDGE LOAD IS VERY HIGH IN PCU OF PSE
BTS AND TC UNSYNCHRONIZATION CLEAR CALLS ON ABIS INTERFACEWDU FAULTY
STMU FAULTY
MCMU RESTART
BCSU RESTART
BCSU SWITCHOVER
Iu-CS link down
Both Iu-PS links down
One Iu-PS link down
BASE STATION FAULTY
BASE STATION OPERATION DEGRADED
BASE STATION NOTIFICATION
CELL FAULTY
CELL OPERATION DEGRADED
CELL NOTIFICATION
BASE STATION LICENCE NOTIFICATION
BASE STATION TRANSMISSION ALARM
BEATING WCDMA BTS ALARM
FAILURE IN WCDMA WBTS O&M CONNECTIONRNW O&M SCENARIO FAILURE
WCDMA CELL OUT OF USE
HSDPA CONFIGURATION FAILED
WCDMA BTS DEDICATED MEASUREMENT FAILURE
HSUPA FAILURE IN WCEL
WCDMA BASE STATION OUT OF USE
BSS TROUBLESHOOTING GUIDE
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BFD Down in AXC (Tellabs)
3G Sites down
2G or 3G sites down (Mw ring collapsed)
2G/3G multiple sites down
SYNCHRONISATION IS MISSING
Some Subscribers not able to latch on TATA network from specific handsets
Rx levels differ too much between main and diversity antennas, RSSI detected Rx signal difference exceeding
EXxx TRX module cooling fan s report no rotation,ESMA System module cooling fan s report no rotation
ERxx DDU module has detected VSWR above minor limit at anten
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S. No. ProblemAlarm No. at
BSCAlarm Description / Comments Catergory
2175OSI CLNS LINKAGE NOT
AVAILABLE
2175OSI CLNS LINKAGE NOT
AVAILABLE
3315
ALL NETWORK SERVICE
ENTITIES UNAVAILABLE
Servicea
ffecting
non-Servicea
ffecting
Non-
Service
affecting
ng
Servicea
ffecting
OSS connectivity
down - both x.25
down
One X.25 down
1
2
NSEI Down3
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13 DISK FAILURE 2860 DISK FAILURE
Zero Voice calls
on particular Cell7738
BTS WITH NO
TRANSACTIONS
GPRS/EDGE
LOAD IS VERY
HIGH IN PCU OF
PSE
Servicea
ffec
10SIGNALLING
LINK SET DOWN
SIGNALLING
LINK DOWN8
11
9
SIGNALLING
LINK
ACTIVATION OR
RESTORATION
FAILURE
7SIGNALLING
LINK OVERLOAD
1072SIGNALLING LINK OUT
OF SERVICE
2072
FAILURE IN SIGNALLING
LINK ACTIVATION OR
RESTORATION
26SIGNALLING LINK LOAD
OVER THRESHOLD
5
4 BVCI Down
Se
rvicea
ffecting
12
BTS AND TC
UNSYNCHRONIZ
ATION CLEAR
CALLS ON ABIS
INTERFACE
2993
BTS AND TC
UNSYNCHRONIZATION
CLEAR CALLS ON ABIS
INTERFACE
2070 LINK SET UNAVAILABLE
3415GPRS/EDGE LOAD IS
VERY HIGH IN PCU OF
PSE
Service
affecting
Non-Service
affecting
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15 STMU FAULTY 2794HW BLOCK FAILURE IN
PLUG-IN UNIT
Se
rviceT
hreatening
16 MCMU RESTART2692
0690,1001
INCORRECT WORKING
STATE
working State Changed ,
Unit restarted
ServiceT
hreatening
WDU FAULTY 2861, 2692
NO ACCESS TO DISK
,INCORRECT WORKING
STATE
non-Servicea
ffecting
14
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17 BCSU RESTART
2692
0690
1001
INCORRECT WORKINGSTATE
working State Changed ,
Unit restartedServicea
ffec
ting
18BCSU
SWITCHOVER
2692
0690
1001
INCORRECT WORKING
STATE
working State Changed
Unit Restarted
ServiceT
hreatening
19
Loss of
Synchronization
in BSC
2,641Failure in
Synchronization Signal
ServiceT
hreatening
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Affect / Steps to be follow for troubleshoot
1. Check the signalling links states at MSS end. s gna ng n s n se own means
-3. Send local engineer at BSC site
4. Check BSC end Mux status & alarm. 1st: Mux
unmanaged - check alarm at connected Mux, Powerissue at BSC site. 2. Mux managed - check alarm at
Mux & verify the power status for BSC.
5. Login BSC via VDU / LANU. Check the alarms &
current computer unit status, if login is possible.In
case login is not possible ,get login through OMU CPU
and check the status of OMU and other computer
units.If we will not get the login through OMU also
,raise the emergency and follow steps as per with
care team recommandation.
1. Check the signalling links states at MSS end. ,
3. Check the Transmission path - Is there any alarm in
X.25 E1 path / path broken, then re-route path &
check X.25 links status.
5. If media ok, Send local engineer at BSC site.
7. If BSC not login via VDU / LANU than login through
CPU of OMU unit and check the status: after login ask
for password then login ok, or if continuously
restarting phase means OMU unit faulty. Do as per
care team recommendations.
1. Check the Transmission path - Is there any alarm in
X.25 E1 path / path broken.. ec e a arms. o en rese e .
Data traffic affect, down
Check no. of NESI's down, if down all - Trace PCU IP
from SGSN & find last hop address & check media
B/W that hop to BSC
If only some NSEI down (one or two) follow below
steps
1. Check the PCU - BCSU combination
2. Ping SGSN (PAPU) IP from that BCSU-PCU
3. Trace PCU IP from SGSN
4. Shift the traffic (DAP) to other PCU-BCSU. ur ng rs agnose a . . agnose o
Data traffic affect, down
1. GENA toggle & check status.
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2. Check PCU-BCSU combination: a n case a par cu ar - com na on: s
- -
- -(c) BCSU switchover.
(d) PAPU re-set / switchover .
Check hardware, cabling & commissioning
A signalling link has failed and changed state from IN
SERVICE to OUT OF SERVICE, or its initial alignment
attempt has failed.
Check the Transmission path ere are o er pa ava a e, s gna ng n s pa
-
The activation or restoration of a signalling link fails.
Signalling transmission capacity decreased.
Check the Transmission path ,
-All signalling links in the signalling link set are
- .
ec or e en o en connec v y or e ers
Check GPRS/EDGE load & balance the load by
reallocate the DAPs
Impact: Call drop, Quality degradation, Call muting
,
e sys em as e ec e a ser ous error a may
have been caused by the hard disk or the SCSI
controller plug-in unit breaking down.Saving data into
the hard disk or reading data from the hard disk
Check UP/DL quality, path imbalance/VSWR/RSSI
This notice appears repeatedly - consider adding more
signalling links
,
timeslot mapping between bts and bsc should be
checked. if mapping is fine, timeslot bypassing should
be checked for the problem BTS/TRX, and if it iscoming on more than one timeslot, and everything
else is fine, trx should be replaced and call test should
be done on all time slots after replacement. If it is
Thershold value need to be change or PCU addition
require if load balancing ok.
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Impact: No hard disk Redundancy, Measurements
might be affected.
1. Check the status of STMU with ZUSI:STMU:;
commands. Check the current & History alarms &
Site/aters outage if any related to faulty STMU.
2. Check the supplementary information of alarms &
work as per information .
3. Clear the faulty tag with ZUST command and
observe.
4. Check the alarms of ET/ transmission and set loss
with ZYWI command.
5. Temperature condition need to check at BSC
location.
6. Check the STMU cabling and if required replace the
Hardware.
1. Check the status of computer units with
ZUSI:COMP:; commands. Check the current & History
alarms.
2. Check the supplementary information of alarms &
work as per information (switchover / diagnose).
3. check ZIGO & ZUDH.
4. Change the state of MCMU to SE-NH and perform
the JOJI of all cards og MCMU and GSW .after
Diagonise the unit and check.
4. if problem repeates on same MCMU ,replace the
hardware with help of alarm info.
5. Perform the diagonistics of that MCMU /EMB and
make it in working State.
6. If no alarm found or problem occur on different -
different units with same alarm Number it may be a
SW bug.
Note : Kindly note before switchoff the MCMUrespective MCMU and EMB should be in SE-NH state
also during any hardware replacement check the
Jumper setting of the card.during any hardware
replacement check the Jumper setting of the card.
. ec e s a e w :; comman s . arm
history and current alarm should be checked. If it is
one WDU or both WDU are in BL-SY state .
2. Perform the JOJI of harddisk ( with JOJI the HDSAM
) and DCAR card .perform the OMU restart and check
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1. Check the status of computer units with
ZUSI:COMP:; commands. Check the current & History
alarms.
2. Check the supplementary information of alarms &
work as per information (switchover / diagnose).
3. check ZIGO & ZUDH.
4. if problem repeates on same BCSU ,replace thehardware with help of alarm info.
5. Perform the diagonistics of the BCSU with both
MCMU and make it in working State.
6. Check the BVCI state and lapd States
7. If no alarm found or problem occur on different -
different units with same alarm Number it may be a
SW bug.
Note : During any hardware replacement check the
Jumper setting of the card accordingly.
1. Check the status of computer units with
ZUSI:COMP:; commands. Check the current & History
alarms.
2. Check the supplementary information of alarm &
work as per information (switchover / diagnose).
3. check ZIGO & ZUDH.
4. if problem repeates on same BCSU ,replace the
hardware with help of alarm info.
5. Perform the diagonistics of the BCSU with both
MCMU and make it in working State.
6. Check the BVCI and Lapd state.
7. If no alarm found or problem occur on different -
different units with same alarm Number it may be aSW bug.
Note : During any hardware replacement check the
Jumper setting of the card accordingly.
1. Check the ZDRI :; command output with Current
alarms.
2. Check the ET alarms on Sync ET .
3. Disconnect the all sync with ZDRC command
,setthe ossilator control word value to 32000 on both
CLS and reconnect the all sync inputs with correct
priority.
Note : If any BSC is out of Sync ,there will be slip on allETs of that BSC .
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S. No. ProblemAlarm No.
at RNC
arm
Description / Cateagory Impact
4
BASE STATION
FAULTY7650
No connection
to Flexi
transport
submodule
SA Transmission to NodeB will be affected
BTS reference
clock missingSD
Service will be affected based on the
degradtion threshold level
BTS RNC/I-
HSPA interface
signalling linkfailure
SA NBAP/AAL2 signalling link failure
System module
failureSA
NodeB Capacity may be reduced/NodeB
totally may not be opreational
3
LINK SET
UNAVAILABLE
SA
NSA No Data traffic outage
LINK SETUNAVAILABLE SA RNC Total Outage
LINK SET
UNAVAILABLE RNC data traffic outage
5
One Iu-PS link
down2070
BASE STATION
OPERATION
DEGRADED
7651
1 Iu-CS link down 2070
2Both Iu-PS links
down2070
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BTS requires
restart because
license status
has changed
SA Mentioned licence feature will not work
BTS time not
corrected
NSA BTS time will not be correct
Difference
between BTS
master clock
and reference
frequency
NSABTS frequecy deviates from IuB
referecne
Fan failure NSA Temparature will be increased
Heatingelement not
working
SA
Heating from the heating element is
not available. The module temperature
may not reach the working level or
may reach it very slowly
Temperature
alarmSA
Depending on severity BTS Capacity
may be reduced/BTS totally may not be
opreational
Failure inoptical RP3
interface
Depending on severity BTS Capacitymay be reduced/BTS totally may not be
opreational
Incompatible
SW version
detected
Depending on severity BTS Capacity
may be reduced/BTS totally may not be
opreational
RF module
failure
Sectors will be affected depends on
severity
VSWR alarm
Depending on severity BTS Capacity
may be reduced/BTS totally may not be
opreational
RF module
failureSA Sectors Operation will be degraded
Rx signal level
failureNSA Sectors Operation will be degraded
SA
8CELL OPERATION
DEGRADED7654
CELL FAULTY 7653
6
7
BASE STATION
NOTIFICATION7652
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9
CELL
NOTIFICATION7655
Radio resources
switched offSA Cell will be down
HW capacity
too low for
feature 308,
Licence BasedBTS channel c
NSA
The licenses are granted but cannot be
used. Some of the licensed features are
not available.
Licence missing
00000001125,
Flexi WCDMA
BTS 60W Power
License
SA Sector down
Licence missing
0000000306,
HSDPA 16QAM
SW Licence
Support
SA SDPA Traffic will affect
Licence missing
0000000307,
HSDPA
Proportional
Fair Resource
Pac
NSA Degradation
Licence missing
0000000649,
Shared HSDPA
Scheduler for
Baseband
NSA Degradation
Verification of
target ID failed3 times.
SA Degradation of system module
License missing
for feature
Additional 2 E1,
T1, JT1
interface o
Service Degraded
SA
7661
BASE STATION
TRANSMISSION
ALARM
7665
10
11
BASE STATION
LICENCE
NOTIFICATION
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License missing
for feature
UBR+.
Cell Down
12
BEATING WCDMA
BTS ALARM7740 (blank) NSA Repeatation of any alarm causes
13
FAILURE INWCDMA WBTS
O&M
CONNECTION
7750 (blank) NSABTS Cannot be logined remotly &
Measurements will not be updated
AAL2 path
unblock not
accomplished
Cell Down
BCCH
information
updating has
failed
Cell Down
Common
channel
deletion has
failed
Cell Down
NBAP interface
type unknown
failure
Cell Down
Block resourcerequest, normal
priority
Sector down
Common
measurement
failure scenario
Sector down
NBAP link
failureSector down
Resource statusindication, cell
disabled
Sector down
WCEL state not
WOSector down
WCEL state not
WO after setupWhen Site Down Or Sector Down
SA
SA
RNW O&M
SCENARIO FAILURE7761
WCDMA CELL OUT
OF USE7771
14
15
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RNC internal
errorService Degraded
WBTS rejects
the
configuration
Service Degraded
17
WCDMA BTS
DEDICATED
MEASUREMENT
FAILURE
7778 SA DCN state - Disable Or Cell Faulty
A unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
A unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
A unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
19
WCDMA BASESTATION OUT OF
USE
7786 (blank) SA WBTS will be down
16
18 SA
SD
HSDPA
CONFIGURATION
FAILED
7772
HSUPA FAILURE IN
WCEL7780
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Possible Causes Solution
ects: ommunication wit
1. Check the unit status for any
failure and check the current
and histor alarms. ing trace contro p ane an
. ec ssoc a on se an
4. Check connectivity B/W end trace
IP to MSS.ec s: ommun ca on w o
1. Check the unit status for any
failure and check the current
and history alarms. ng race con ro p ane
. ec ssoc a on se an
. ec connectivity en trace
Affects: Communication with one
1. Check the unit status for any
failure and check the current. ng race con ro p ane
. ec ssociation set an
. e c connec v y en race
Malfunction of Transport Module in
System Module
Reset System Module/Replace
Transport Module in System Module
Site Clock E1 having errors / AISClock E1 Interface needs to be check
& Check the SYNC of TXN side
Transmission break or fluctuationsCheck transmission configurations
and paths
Abnormal functioning of FSM Reset FSM/Replace FSM
Affect / Steps to be follow for troubleshoot
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After licence installation BTS not
given restartRestart BTS.
NTP Server IP mismatchCheck NTP server IP it should be
same as RNC OMS IP
DAC Valure variations Set DAC value to standard value
H/W FaultyCheck working status of Fans or
replcae FAN units in FSM
The heater control connection of theFSM is faulty, there is no heater or
the heater is faulty.
Check whether the heating element
exists at all./ Check the heatercontrol connection and that the
heater is working./ Replace the
alarming component.
The internal temperature of the RF
Module or System Module exceeds
the threshold value, or the ambient
temperature of the module(s) is
outside the specified limits.
Check the FAN units in FSM/FRGP
Abnormal/ failure in optical cable
between FSM & FRGP
Check the Optical cable connectonbetween FSM & FRGP/Reset
FSM/Replace cable.
SW Mismatch of BTSRecomission BTS with Correct SW
version
Abnormal functioning of FRGPReset FRGP/FSM/Check interface
cables/Replace FRGP
High VSWRCheck the VSWR, should be less than
1.3
Abnormal functioning of FRGPReset FRGP/FSM/Check interface
cables/Replace FRGP
The RX signal level is less than -
112dBm or the difference between
the maximum and minimum power
levels of all RX antennas in the same
cell and sector is more than the limit
(4 dB).
Check the VSWR & Antenna cables
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As per configuration H/W
mismatch/unavailability
Check the cell configration & H/W
availbilty at site
The HW capacity is too low to
support all licenses of an optional
feature.
Call to GNSC CM Delete the licenses
or insert new hardware.
During NodeB commissioning seleted
60W power for sector.
Login to nodeB and change
parameters of sector power to 20W
HSDPA License Missing Or Cell Down Call to GNSC CM get it clear
License missing License missing
License missing License missing
Hanged/config issue/comm issue Hanged/config issue/comm issue
This basic license missingGNSC has to load this basic license
from Netact
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HSDPA License MissingGNSC has to load this basic license
from Netact
Repeatation of any alarm causesCancels once causing Alarm is
cleared
DCN Configuration mismimatch in
NodeB/RNC/tellabs
To be checked DCN Configrations at
RNC/NodeB/Tellabs
CoCo/ATM Configuration Mismatches
between NodeB/RNC/Tellabs
To be checked CoCo/ATM
Configuration Mismatches between
NodeB/RNC/Tellabs
CoCo/ATM Configuration Mismatches
between NodeB/RNC/Tellabs
To be checked CoCo/ATM
Configuration Mismatches between
NodeB/RNC/Tellabs
CoCo/ATM Configuration Mismatches
between NodeB/RNC/Tellabs
To be checked CoCo/ATM
Configuration Mismatches between
NodeB/RNC/Tellabs
CoCo/ATM Configuration Mismatches
between NodeB/RNC/Tellabs
To be checked CoCo/ATM
Configuration Mismatches between
NodeB/RNC/Tellabs
Cell Down Need to check WCELL/WBTS alarm
Cell Down Need to check WCELL/WBTS alarm
Cell Down Need to check WCELL/WBTS alarm
Cell Down Need to check WCELL/WBTS alarm
Cell Down Need to check WCELL/WBTS alarm
Cell Down Once Node-b is up, alarm will clear
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Cell Down / Interface Down Or H/W
configuration In Node-B
Node-B Lock & Unlock Or Restart
Node-B / Cross check & Rectify
Node-B H/W Configuration --All This
action based on Sublimentory
information of Alarm
Cell Down / Interface Down Or H/W
configuration In Node-B
Node-B Lock & Unlock Or Restart
Node-B / Cross check Node-B H/W
Configuration --All This action based
on supplementary Alarm Info.
DCN connected E1 Interface needs to
be cross check
DCN Interface / Lock all the cells
under the BCF and delete & Re-
create COCO configuration and
unlock all the cells / If required Site
reset has to be given ( Anlaysis based
on supplementary info)
Cell DownA unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
Cell DownA unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
Cell DownA unit (or units),taking care of HSUPA
traffic in the WCEL can be faulty
CNBAP/BRM BreakCheck the transmission path &Configuration between NodeB to
RNC
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S. No. Problem Alarm No. at BSC Alarm Description / Comments Catergory
5 M/W Link Problem
No Alarm observed in the
link, except RSL dip at one
end.
At one end, RSL of the link is OK, on
other end it dips to -90dBm.
No typical alarm observed in the link.
ServiceT
hreatning
32G or 3G sites down
(Mw ring collapsed)
Service
affecting
42G/3G multiple sites
down
Service
affecting
Fault rate monitoring & PCM failures
Fault rate monitoring & PCM failures
1BFD Down in AXC
(Tellabs)
Service
Degradation
2 3G Sites downService
affecting
7665 BFD down
Base Station out use
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Affect / Steps to be follow for troubleshoot
BFD down or fluctutating in AXC & data traffic shifted to ATM,
Cause HSPA fallback enabled. Checked txn media as well as ISA
card or reset Mux ISA card to restore BFD.
Need to check utilization of GE ports, If broadcast packets incresing
then need to check the txn- media & ISA card.
Deimplement trails for culprits ISA & raplace ISA ASAP.
Downs sites need to be check belongs particular AXC card or Mux
particular STM-1 port. Need to check alarms on port, If any alarm
appears then switch to redundant port to restore sites
If the CPU utilization for both Main & Spare IFMcard are hign then
remove one by one & inserted Main card to reduce CPU utilization.
Atlast switched CDC card from main to redundant card.
Need to check alrams on ALU mux port during ring collapsed at
both end.
Need to ping connecting IDU from GNOC to check alarms & w.r.t
appeared alarms we identify either power issue or hardware fault
Enginners need to send at site with hardware for further trouble
shooting.
Sites need to be indentified on particular MUX
Core mux malfunctioning at BSC/RNC location
2G & 3G site database shared with all CTLs
Impact: Microwave Link gets down
Reason of the problem: Normally in this type of scenario, ODU of
the link (at the end where RSL is OK) is misbehaving.
Its transmitor gets off, stops
radiating. But, it receives the signal properly.
Troubleshooting: ODU to be replaced
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S. No. Problem BTS Type Alarm
No. at
BSC
Alarm Description / Comments
2 a)Some Subscribers were not able
to latch on TATA network from
specific handsets.While Same
Handsets were running fine with
IDEA or any other operator from a
perticular site
(N_UW_NRA_001,Muzzafarnagar)
Flexi Edge
BTS
Observation:At Problematic
location/Premises(N_UW_NRA_001,Muzzafa
rnagar) there are two NSN equipments
serving for IDEA/TATA.No alarm was found
on problematic site.
3 Rx levels differ too much between
main and diversity antennas, RSSI
detected Rx signal difference
exceeding threshold
Flexi 7607 Rx levels differ too much between main and
diversity antennas,
RSSI Value is high than 10.
1 SYNCHRONISATION IS MISSING
All External Q1 device fail to
respond
Flexi/MR 7787 DFCA not working in that particular Site,One
more Observation:Site will continously
restart when DFCA is enabled in the site
5 a)ERxx DDU module has detected
VSWR above minor limit at anten
Flexi/MR 7607 VSWR limit is high than 1.5 for Minor alarm
and >2.7 for major alarm
4 EXxx TRX module cooling fan s
report no rotation,ESMA System
module cooling fan s report no
rotation
Flexi 7607 TRX cooling fan not rotate
ESMA cooling Fan not rotate
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Catergory Affect / Steps to be follow for troubleshoot
Service affecting Activities steps as follow:-
1.Firstly we Check Infra condition of the site
2.Check the BTS configuration of the site ,properly check weather there is
any alarm in site,But no service affecting/Service degrading alarm found
3.After that we check DAC value,RSSI comparision value and VSWR value
with Site master but problem not resolved.
4.Change the PLMN allowed from 1 upto 7.
5.Replaced the ESMA card.
6.Shift BCCH to another TRX and check
7.Shift BCCH to another TRX and check.
8.Swapping of TRX's from other perfet site to problamatic site and
check.
9.Site deletion and further recreation done still no improvement found
10.Rehome the site BCF-22 Muzaffarna ar BSC to Meerut -1 BSC with
1.First step to check the site is down or not (ZEOL)
2.if site is working with DFCA unsync and LMU is in stand by mode (ZEFL)
than visit the site
3.Check the parameters such as LMU area parameter,DFCA disabled orenabled
4.Check ESLA cable connectivity between ESMA to LMU ,if found any
Service
Degrading
1.Check the RSSI measurements with BTS Manager.
2.Check the BTS RF cables and connections.Check the antenna and RX
cabling.
3.If the antenna and RX cabling are faulty, correct the problem and run
TRX test to cancel the alarm.
4.Check and measure VSWR of the antenna lines.
Service affecting
1.90% there is a chance of Over heating or Room tempurature high inside
shelter
2.if there in an issue of tempurature resolve the issue along with IP
3.Check that the fan unit cable is correctly connect to DTRX/ESMA
4.Check that there are no obstacles preventing the fan(s) from rotating
5.Clean the fan unit of dust and/or dirt
6.if problem is still presist then Replace the fan unit
service affecting 1.Measure VSWR value with Site Master ,If value is found high then
second step is to see the fault via Distance to fault location .
2.According to distance found, replace connector,Jumper ,Anteena ordamaged feeder cable
3.With external test equipment check VSWR of the antenna line. Repeat
step 1 if the measurement is again high
Service
Degrading
D:\userdata\alekar\Desktop\BSS Fault
8/12/2019 BSS Troubleshooting Guide
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BCF Alarm Guide
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