TSA-200 / TSA-200XT / TSA-240 / TSA-240XT
© 2010 – 2014 Telefire Fire & Gas Detectors Ltd Revision 1.06 July 2014
Page 49 of 79
14 Work States
During an alarm or fault events and states of the system, the event/states are clearly
shown by dedicated LEDs that are labeled Fire Alarm or Fault, respectively.
Fire alarms have a higher priority than fault events and are shown first.
14.1 Normal State
Normal (Quiescent, Idle) state is a state where no alarm or fault event exists and all of
the inputs and outputs are enabled. In this state, the green Power LED is ON with short
OFF pulses.
14.2 Alarm State
14.2.1 Dependency on More Than One Alarm Signal (Alarm Delay)
The Dependency on more than one alarm signal (alarm delay and verification) feature
allows the Control and Indicating Equipment (CIE) to ignore false alarms.
When a zone is programmed for alarm delay verification, and an alarm is received in that
zone, the Control and Indicating Equipment (CIE) resets the zone in alarm, waits for 0 or
30 seconds (depends on individual zone programming) and rechecks for 120 seconds
(confirmation period) whether the same zone is still in alarm. During confirmation period,
the Control and Indicating Equipment (CIE) will enter alarm state when receiving an
alarm from the same or from the other zone.
During alarm confirmation time, the Control and Indicating Equipment (CIE) will enter
alarm state immediately in case there is another alarm even if the alarming zone is
programmed for alarm verification.
During the alarm delay and alarm confirmation time, the Delay LED flashes.
14.2.2 Alarm Operations
During an alarm in one of the detection zones, the Control Panel performs the following:
• Switching ON the general alarm LED and the zone private alarm LED.
• Activating the horn output
• Activating the alarm dialer output
• Activating internal buzzer ON steadily
• Activating the alarm relay
• Activating the relevant Open Collector output (Zone 1 and/or Zone 2)
• Activating the Evacuation and Extinguishing outputs if an EM1 card is installed and
extinguishing is configured for activation from this zone
14.2.3 Acknowledge / Buzzer-Off Operation
An Operator or Programmer password is required
• Silences the internal buzzer
• Stops the flashing in the general display area and zone display area. The LEDs
stay constantly ON until the Control and Indicating Equipment (CIE) is reset
14.2.4 Silence / Resound Operation
An Operator or Programmer password is required
Pressing the Silence key performs the following actions
• Stops the action of the horn output
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