1. EXTERNAL ALARMS AT BTS SITES
SUBMITTED BY,
NIDHIN JOY

2. INTRODUCTION Alarms are used to monitor various activities
Alarms are classified as two types.
Internal alarms
External alarms
Externals alarms :used to monitor the activities on the sites.

3. Classification of alarms
Internal alarms external alarms

4. EXTERNAL ALARMS USED TO MONITOR THE VARIUOS ACTIVITIES ON THE SITES
VARIOUS LISTS OF EXTERNAL ALARMS ARE AS FOLLOWS
SITE ON BATTERY
DG FAILS TO START
DG FAILS TO STOP
DG RUNNING WITHOUT LOAD
LOW FUEL LEVEL;
LOW LUBRICATION OIL PRESSURE

5. HIGH ROOM TEMPERATURE
AC-1 FAILS
AC-2 FAILS
AC FAILS
RECTIFIER FAILS
LOW BATTERY VOLTAGE
DOOR OPEN
FIRE AND SMOKE AT SITE
SITE ON DG.
FEW MORE ALARMS ARE THERE.BUT IT IS BASED ON THE BTS USED.

6. CONNECTION OF ALARMS
External alarms are connected to the alarm panels.
The alarm panels are connected to the ddf.
According to the bts the alarms AT EACH SITE MAY differ.
ALARMS ARE CONNECTED USING ALARM CABLES
FOR EACH AND EVERY ALARMS 2 WIRES ARE NEEDED.
ALARM CABLES USED ARE PCM CABLES.

7. CONNECTION AND CONFIGARATION OF ALARMS
FOR THCONNECTION AND CONFIGURATION OF THE ALARMS VARIOUS STEPS ARE TO BE FOLLOWED
THEY ARE:
TITLE/SYNTAX:NAME OF THE ALARM
ALARM NUMBER:DEPENDS ON BTS
ALARM TYPE: NORMALLY OPEN(NO)/NORMALLY CLOSED(NC)
ALARM SEVERITY:MAJOR/MINOR/SEVERITY
ALARM PORT NO/PIN NO:DEPENDS ON BTS
COLOUR CODE:DEPENDS ON THE PIN CONFIGURATION
ROUTE OF THE ALARM:ORIGIN OF ALARM
ROOT CAUSE OF THE ALARM:WHY THE ALARM COMES?
CAUSE OF THE ALARM: HOW THE ALARMS COMES?

8. LIST OF ALARMS SITE ON BATTERY:
THIS ALARM WORKS WHEN THE SITE WORKS ON THE BATTERY.
TYPE OF THIS ALARM IS N ORMALLY OPEN(NO).
SEVERITY OF THIS ALARM IS MAJOR
ROUTE OF THE ALARM:
ROOT CAUSE:ALL THE RECTIFIERS IN THE POWER PLANT GETS FAILED
BTS
DDF
ALARM PANEL OF P.P

9. this alarms works when the mains get fails.
Mains fails
this alarms works when the mains get fails.
type of alarm: normally open(n o)
severity of alarm: minor/major(depends)
route of the alarm
ROOT CAUSE:WHEN THE MAINS GETS FAILS
PIU/AMF
DDF
BTS

10. ALARM TYPE:NORMALLYU OPEN(N O). ALARM SEVERITY:MAJOR
DG FAILS TO START
THIS ALARMS WORKS WHEN THE CONTROL PANEL SENSE THERE IS NO INPUT FROM DG
ALARM TYPE:NORMALLYU OPEN(N O).
ALARM SEVERITY:MAJOR
ROUTE OF THE ALGORITHM
ROOT CAUSE:WHEN THE PIU/AMF PANEL FAILS TO START THE DG IN 3 ATTEMPT
PIU/AMF
DDF
BTS

11. DG FAILS TO STOP
THIS ALARM WORKS WHEN THE CONTROL PANEL SENSE THERE IS INPUT FROM DG AFTER MAINS COMES
ALARM TYPE:NORMALLY OPEN
ALARM SEVERITY:MINOR
ROUTE OF THE ALARM
ROOT CAUSE:WHEN PIU/AMF PANEL FAILS TO STOP THE DG IN 3 ATTEMPTS
PIU/AMF
DDF
BTS

12. DG RUNNIGN WITHOUT LOAD
THIS ALARM WORKS WHEN THE DG IS RUNNIGN WITHOUT LOAD
ALARM TYPE:NORMALLY OPEN(N O)
ALARM SEVERITY:MINOR
ROUTE OF THE ALARM:
ROOT CAUSE:DG RUNS WITHOUT LOAD
PIU/AMF
DDF
BTS

13. LOW FUEL LEVEL THIS ALARM WORKS WHEN THE FUEL IS EMPTY
ALARM TYPE:NORMALLY OPEN( NO)
ALARM SEVERITY:MINOR
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN THE FUEL IN THE TANK REACHES 40% OF THE TANK CAPACITY
FUEL SENSOR
PIU/AMF
DDF
BTS

14. LLO(LOW LUBRICATION OIL PRESSURE)
THIS ALARMS WORKS WHEN THE OIL PRESSURE IN ENGINE IS LESS
ALARM TYPE:NORMALLY OPEN(N O)
ALARM SEVERITY:CRITICAL
ROUTE OF THE ALARM
ROOT CAUSE:WHEN THE SENSOR SENSE THE OIL PRESSURE IN ENGINE GOES BELOW THAN SPECIFIED PRESSURE.
LLOP SENSOR
PIU/AMF
DDF
BTS

15. Alarm type: normally open(n o) Alarm severity: major
High room temperature
Alarm type: normally open(n o)
Alarm severity: major
Route of the alarm:
ROOT CAUSE:WHEN THE TEMPERATURE REACHES 45DEGREE OR TEMPERATURE REACHES ALARMING TEMP LEVEL
DDF
BTS
MICRO CONTROLLER

16. THIS ALARMS WORKS WHEN BOTH THE A/C GETS FAILS
AC FAILS
THIS ALARMS WORKS WHEN BOTH THE A/C GETS FAILS
ALARM TYPE:NORMALLY OPEN(N O)
ALARM SEVERITY: MINOR
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN BOTH THE A/C GETS FAILS.
DDF
BTS
MICRO CONTROLLER

17. THIS ALARM GET ON WHEN ANY ONE OF THE A/C GETS FAILED
AC 1 &AC 2 FAILS
THIS ALARM GET ON WHEN ANY ONE OF THE A/C GETS FAILED
ALARM TYPE:NORMALLY OPEN(N O)
ALARM SEVERITY:MINOR
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN AC 1 FAILS OR AC 2 FAILS
DDF
BTS
MICRO CONTROLLER

18. WORKS WHEN ANY ONE OF THE RECTIFIER GETS FAILS.
RECTIFIER FAILS
WORKS WHEN ANY ONE OF THE RECTIFIER GETS FAILS.
ALARM TYPE:NORMALLY OPEN(NO)
ALARM SEVERITY:MINOR
ROUTE OF ALARM:
ROOT CAUSE:WHEN ANY ONE RECTIFIER FAILS
DDF
BTS
ALARM PANEL OF P.P

19. this works only when the p p voltage reaches alarming voltage level
Low battery level
this works only when the p p voltage reaches alarming voltage level
Alarm type: normally open(n o)
Alarm severity: critical
Route of the alarm:
Root cause: when the power plant voltage reaches 47v(alarming voltage level)
DDF
BTS
ALARM PANEL OF P.P

20. THIS ALARM GETS ON WHEN THE DOOR OF THE SHELTER GET OPEN
DOOR OOPEN
THIS ALARM GETS ON WHEN THE DOOR OF THE SHELTER GET OPEN
ALARM TYPE:NORMALLY CLOSED(N C)
ALARM SEVERITY:MAJOR/MINOR/CRITICAL(DEPENDS)
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN THE DOOR IS OPEN
DOOR SENSOR
PIU/AMF
DDF
BTS

21. THIS ALARMS WORKS WHEN THERE IS FIRE OR SMOKE AT THE SITES
FIRE AND SAFETY ALARM
THIS ALARMS WORKS WHEN THERE IS FIRE OR SMOKE AT THE SITES
ALARM TYPE:NORMALLY OPEN
ALARM SEVERITY:CRITICAL
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN THERE IS FIRE OR SMOKE ATH THE SITES
FIRE &SMOKE SENSOR
PIU/AMF
DDF
BTS

22. FIRE AND SMOKE ALARMS

23. THIS ALARMS WORKS WHEN THERE IS LOAD ON DG
SITE ON DG
THIS ALARMS WORKS WHEN THERE IS LOAD ON DG
ALARM TYPE:NORMALLY OPEN(N O)
ALARM SEVERITY:MINOR
ROUTE OF THE ALARM:
ROOT CAUSE:WHEN THERE IS LOAD ON DG.
PIU/AMF
DDF
BTS

24. TYPES OF BTS AND ALRAM IT CONTAINS
NOKIA ULTRA BTS:12 ALARMS
MAIN FAILS
RECTIFIER FAILS
LOW BATTERY VOLTAGE
SITE ON BATTERY
SITE ON DG
LLOP
LOW FUEL LEVEL
DG FAILS TO START
AC FAILS
DOOR OPEN
HIGH ROOM TEMPERATURE
FIRE AND SMOKE AT SITE

25. RBS 2964:16 ALARMS SITE ON DG DG FAILS TO START MAIN FAILS
HIGH ROOM TEMPEERATURE
LOW FUEL LEVEL
LLOP
DG FAILS TO STOP
FIRE AND SMOKE AT SITES
DOOR OPEN
AC 1 OFF
AC 2 OFF
SPARE B
BATTERY FUSE FAILS

26. RECTIFIER FAILS
LOW BATTERY LEVEL
SMPS FAILS

27. HUAWEI 3900 Intruder Ac fails High room temperature
Fire and smoke alarm
Fire fighting
Mains failure
Dg fails to start
Site on dg
Rectifier high voltage
Tower light failure
Rectifier 2/more failure
Site on battery
Low battery voltage
Rectifier fails
Generator auto mode
Low fuel level

28. ZTE ZXG-10 TEMPERATURE ALARM LOW BATTERY ALARM DG FAILSS TO START
AC MAINS FAILURE
DOOR ALARMS
AIR CONDITIONER ALARM
SMOKE ALARM
SMR MODEL ALARM
DG IN OPERATION
LOW FUEL TANK.

29. THANK YOU