User's Manual

BTS Alarms Testing
SC 4812T CDMA BTS Optimization/ATP
May 2000
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Alarm Test Overview
ALARM connectors provide Customer Defined Alarm Inputs and
Outputs. The customer can connect BTS site alarm input sensors and
output devices to the BTS, thus providing alarm reporting of active
sensors as well controlling output devices.
The SC 4812T is capable of concurrently monitoring 36 input signals
coming into the BTS. These inputs are divided between 2 Alarm
connectors marked ‘ALARM A’ and ‘ALARM B’ located at the top of
the frame (see Figure 3-19). The ALARM A connector is always
functional; ALARM B is functional when an AMR module is equipped
in the AMR 2 slot in the distribution shelf. ALARM A port monitors
input numbers 1 through 18, while ALARM B port monitors input
numbers 19 through 36 (see Figure 3-20). State transitions on these input
lines are reported to the LMF and OMCR as MGLI Input Relay alarms.
ALARM A and ALARM B connectors each provide 18 inputs and 8
outputs. If both A and B are functional, 36 inputs and 16 outputs are
available. They may be configured as redundant. The configuration is set
by the CBSC.
Alarm Reporting Display
The Alarm Monitor window can be displayed to list alarms that occur
after the window is displayed. To access the Alarm Monitor window,
select Util>Alarm Monitor.
The following buttons are included:
 The Options button allows for a severity level (Warning, Minor, and
Major) selection. The default is all levels. To change the level of
alarms reported click on the Options button and highlight the desired
alarm level(s). To select multiple levels press the <Ctrl> key (for
individual selections) or <Shift> key (for a range of selections) while
clicking on the desired levels.
 The Pause button pauses/stops the display of alarms. When the Pause
button is clicked the name of the button changes to Continue. When
the Continue button is clicked, the display of alarms continues.
Alarms that occur between the time the Pause button is clicked and
the Continue button is clicked are not displayed.
 The Clear button clears the Alarm Monitor display. New alarms that
occur after the Clear button is clicked are displayed.
 The Dismiss button dismisses/closes the Alarm Monitor display.
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