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:' - "% Pressing the Acknowledge/Step or Alarm Silence key will cause the pulsing piezo tosilence and the system Trouble LED to change from flashing to on steady. This blockacknowledgment occurs regardless of the number of troubles, alarms and supervisoryevents active in the system. When the Acknowledge/Step key is pressed and at least onenew alarm or trouble exists in the system, the ‘acknowledge’ message is sent to the printerand history file. If the trouble clears, either before or after the Acknowledge/Step key ispressed, the ‘clear trouble’ message is sent to the printer and history file.If all troubles clear and there are no supervisory or fire conditions active in the system, thesystem returns to normal mode operation and the System All Normal message is shown onthe LCD display and sent to the history and printer files. The auto-restore feature willrestore cleared troubles even if the troubles were never acknowledged. Note that pressingthe Alarm Silence key when only troubles exist in the system will have the same effect aspressing the Acknowledge/Step key except the Alarm Silenced LED will light.If multiple trouble conditions exist in the system, they will be automatically scrolled onthe LCD display at a three second rate. If a combination of alarms, troubles and/orsupervisory conditions simultaneously occur in the system, only the alarms are scrolled onthe display.4.5 Alarm OperationAlarm operation is similar to trouble operation with the following differences:• The piezo sounder produces a steady output as opposed to a pulsed output• The Fire Alarm LED flashes 1 second On and 1 second Off• The LCD displays Alarm along with the device name, type, address, adjective/noun,associated zones and time/date• Alarms latch and are not allowed to clear automatically• Alarms activate software zones if so programmed• Timers for Silence Inhibit, Autosilence and Trouble Reminder are started• Alarms activate the general alarm relay and general alarm zone Z00• The trouble relay is not activated• Store event in history bufferA typical alarm display would be as illustrated below:Note that the device type, which in this example is PULL STATION, can be any otherprogrammable alarm type.The information displayed in the above example provides the following information:• First line in display:✓ The type of event; in this example ALARM indicating an alarm condition✓ Device type identifier; in this example, PULL STATION indicates a manual pullbox. Other device type identifiers which can be displayed include SMOKE (ION)for Ionization Detector, HEAT for Heat Detector, CONTROL for Control Moduleand MONITOR for Monitor Module, PULL STATION for a manual pull box, etc.Refer to "Edit Detector" on page 44, "Edit Module Screen for Monitor Module"on page 54 and "Edit Module Screen for Control Modules" on page 63 forinformation on additional device types.ALARM PULL STATION Z00010:00A 010801 1M001
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