Rev. A.1, 10/99

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1.5 AUDIBLE ALARM AND ALARM RESET

The red indicator is always accompanied by a Sonalert sounding on the panel. The panel operator hears the alarm, and then consults the panel face to determine the zone that has gone into violation. The violation condition is latching. Once a red indicator goes on and the Sonalert sounds, it will continue even if the door is resecured, until manually reset by the momentary reset switch on the panel face. This reset switch serves for any violation event on the entire panel.

The panel's reporting of a violation event is automatically delayed by 2 seconds. To understand the purpose for this, consider a typical installation with lock status sensing locks. When a lock is legally released by the panel toggle or a local switch, the panel reports legal release (toggle bat LED yellow and bicolor LED off). When the lock is resecured by the same switch, some time (usually a half second) is required for the lock to report secure to the panel. This is the time necessary for a magnetic lock to pull in and generate full holding force or for a bolt to seat. Without the violation delay, a latching alarm event would occur every time a zone was relocked.

If the factory is informed, the delay time can be increased to up to 6 seconds (capacitor values on the boards are changed). An example of a longer delay being desired would be if entry was by a keyswitch. A person using the door would turn the momentary keyswitch and push the door open with his other hand. A 6 second violation delay would be appropriate to allow the person to release the keyswitch, move through the door, and then allow the door to reclose and resecure. Note that if the keyswitch activates a release hold timer as is commonly done, a long delay is not required. The timer will shunt the panel violation condition allowing the door to reclose. When the timer resecures the lock, it will drop out the violation shunt and only a short delay will be necessary to allow the lock to report secure again.

The effect of the bicolor LED in helping the panel operator correctly reset panel violations should be understood. In normal operation, the locks are secure and the indicators are green. Legal use of the door switches the bicolor LED off and it then turns green again when the door resecures. If the indicator turns red (accompanied by the Sonalert) a violation has occurred which means that the door is not secure. If reset is attempted at this point, the Sonalert will stop but after the alarm delay expires, (2 seconds) the violation condition will reoccur as the door is still not secure. If the panel toggle is switched to legally release the lock, the violation can now be reset (bicolor LED will be off) but the door is still not secure. The panel should be reset after the door has been resecured. At this point, the bicolor green element (door secure) and red element (violation) will both be lit which will make the LED appear orange. The orange color is therefore the signal to the operator that the zone is secure after a violation and is ready to reset.

SUMMARY OF INDICATOR/SONALERT STATES

BICOLOR GREEN: ZONE SECURE (FROM DOOR STATUS OR LOCK STATUS SWITCH)

BICOLOR OFF: ZONE LEGALLY RELEASED EITHER FROM TOGGLE OR FROM REMOTE CONTROL SWITCH

TOGGLE BAT YELLOW INDICATOR ON: LEGAL RELEASE (SAME AS BICOLOR OFF)

TOGGLE BAT YELLOW INDICATOR OFF: LOCK SHOULD BE SECURE (FAIL SAFE LOCK IS POWERED; FAIL SECURE LOCK IS UNPOWERED)

BICOLOR RED: VIOLATION CONDITION. LOCK SHOULD BE SECURE (TOGGLE BAT INDICATOR IS OFF) BUT IS NOT REPORTING SECURE AFTER 2 SECOND DELAY

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Assa ELECTRIC LOCK manual Audible Alarm and Alarm Reset, Summary of INDICATOR/SONALERT States
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ELECTRIC LOCK specifications

Assa Electric Lock is a cutting-edge security solution designed to address the evolving needs of modern access control systems. Utilizing advanced technologies, this lock integrates both traditional locking mechanisms with state-of-the-art electronic features, providing an unparalleled level of security for residential and commercial properties.

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