User Manual

BTS Redundancy/Alarm Testing – continued
5/21/04 1X SC4812T–MC BTS Optimization/ATP 3-99
DRAFT
Alarms Testing
Alarm Verification
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 35 input signals.
These inputs are divided between 2 Alarm connectors marked ‘ALARM
A’ and ‘ALARM B’ located at the top of the frame (see Figure 3-28).
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, 20, and 22
through 36 (see Figure 3-29). Alarm 21 is reserved for system use. 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:
S 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.
S 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.
S The Clear button clears the Alarm Monitor display. New alarms that
occur after the Clear button is clicked are displayed.
S The Dismiss button dismisses/closes the Alarm Monitor display.
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