ALARM BASIC FUNCTION NOTE; if we define the alarm on breaking by OMT
BTS END
ALARM GENERATI NG RELAY
ALARAM NOT ACTIVE
BTS END
ALARM GENERATI NG RELAY
ALARAM ACTIVE
(SENSOR/RELAY ALAM DESTINATION END
(SENSOR/RELAY)
ALAM DESTINATION END
Alarms define on Ericson BTS by OMT 1. 2. 3. 4. 5. 6. 7. 8. 9.
GEN ON AC MAIN FAILURE RECTIFIER DOOR DC LOAD FUSE BATTERY HIGH TEMP LOW VOLTAGE RECTIFIER MAJOR RECTIFIER MINOR SYSTEM ON BATTERIES
Note : when we r going to define the alarm the wording will be same like above . All the later should be capital .
Because the filter applied on BSC end if we change the wording the alarm will report BTS end but not on BSC end.
ALARM DEFINATION
ALARM DESTINATION
1) GEN ON
ATS
2) AC MAIN FAILURE
ATS
3)RECTIFIER DOOR
POWER CABNET
4) LOAD BREAKER TRIP
PSC3
5) BATTRY HIGH TEMP
POWER CABNET
6) DC LOW VOLT
PSC3
7) MAJOR
PSC3
8) MINOR
PSC3
9) SYSTEM ON BATTRIES
PSC3
Alarm Ericson BTS 1
2
3
4
5
6
7
8
9
Alarm relays on psc3 Relay 6 Genset trigger
Relay 5 Dc low volt
Relay 4 Load breake r trip
Relay 3 Sys on batt
Relay 2 Minor
Relay 1 Major
POWER CABNET ALARMS Door sensor Temperature sensor BATTERY HIGH TEMP
RECTIFIER DOOR
NOTE: we have to trace the wire coming from lower cabinet temperature sensor an Door sensor. Connect that with the pairs coming from BTS END
Click on connect button
Click on read IDB
Right click on Alarm inlets
Define the alarm name here
Select external alarm here
Define the alarm state on breaking
Start alarm monitoring from here
Alarms Trouble shooting 12 volt travels BTS END
ALARM GENERATI NG RELAY
ALAM DESTINATION END
ALARAM NOT ACTIVE
Usually 12 volts travels on alarm wires .when the far end of the wires switch togethe It séance the alarm is clear (if we define the alarm state on breaking ) .
If we are facing trouble in alarm reporting .so we have to check step by step start fro BTS end by looping .
