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An introduction to Monitoring Fundamentals strictly from the perspective of telecom network alarm management.
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The Building Status Unit will provide Critical, Major and Minor visual indicators to reflect the alarm status of the BSU's location. Typically this would be located in break room or other any other location where you wish to notify people they should return to the monitoring console.
The BSU can be mounted near the door of a remote facility to provide personnel with a "last glance out the door" view of equipment status. In large facilities it can be used as an aisle status indicator. The BSU operates in conjunction with your relay device. The BSU is also controlled by relays in a relay device. A relay is assigned to the critical, major and minor alarm levels. Relay operation causes the BSU to flash the appropriate visual indicator and sound the audible alarm. Pressing the ACK button changes the visual indicator to solid and silences the audible alarm.
The two visual indicators at the top of the BSU are controlled by a "sanity" pulse. The Sanity Indicator verifies that communications is functioning and the status indicated is current. Pulses must be received within a programmable time window for the green indicator to remain on. If pulses stop coming, the red indicator comes on to show that the display is not current.
An Alarm Cut Off (ACO) function is provided for silencing the audible alarm device. Pressing the ACK button three times activates the ACO. Pressing three times again deactivates the ACO. A green ON LINE indicator flashes when ACO is activated. Alarm volume can be set with a control on the BSU front panel.
Three severity indicators show system or site status and summarizes alarm status on one visual display and can be located at manager or remote sites. The visual and audible alarm indicator and sanity check indicator verifies proper operation ACK and ACO functions.
