Dortronics 7281 Series Door Exit Alarm with Adjustable (2 to 60 Second) Time Delay, Single Gang With LED

Dortronics 7281 Series Door Exit Alarm with Adjustable (2 to 60 Second) Time Delay, Single Gang With LED and Audible Alarm

The 7281-EA door alarm can be configured to provide an audible alert, at the door, if it is not closed within a specified time. If the door is held open past the allowed time, the piezo alert is sounded until the door is closed or the alarm is reset.

Features:

• Exit Alarm on Door Opening: The 7281-EA can also be configured to provide an immediate alarm on door opening. The alarm can be timed to automatically silence or “latched” on until manually reset.
• Adjustable Timed Delay: The "door open" time, for the door prop operation and the “automatic reset” time period, for the exit alarm, is field adjustable. This time delay can be set from 2 to 60 seconds.
• Automatic or Manual Alarm Reset: The alarm sounder can be configured to reset automatically or require a manual reset by key to be silenced. When used as a door prop the alarm is automatically reset on door close. If used as an exit alarm the automatic reset can be by door closure after a time delay. Either operation may utilize a manual reset by key switch, digital keypad, or other momentary switch.
• LED Indicator: A tri-state LED is provided for visual status of the door alarm. When the door is secure the LED is green, amber during door unlock/shunt, flashing amber when door is open (authorized), flashing red during the warning period, and the LED is steady red while in alarm.
• Compact Mounting Styles: The Dortronics EA door alarm modules are supplied on a single gang plate for prop alarm with sounder and LED. If the optional mushroom pushbutton or key switch is used a double gang plate is required.
• Optional R-E-X Button: A push button can be supplied on a double gang plate to provide a request-to-exit signal to the card access system. This momentary dry contact output is totally independent of the alarm electronics.
• Optional Key Reset/Shunt Switch: An optional key switch is offered to allow a manual reset by key. This key switch can also be used to provide an alarm shunt function.
• Versatile exit alarm sounder
• 12 or 24 VDC operation
• Built-in LED indicator
• Optional key reset operation

Model:

• 7281-EA: Door alarm module on 1-gang stainless steel wall plate with LED and sounder
• 7281-EA-K332: Door alarm module on 1-gang stainless steel plate with LED and sounder. Includes electrical key switch with DPDT contacts (1-maintaned contact for reset input). Key removable in both positions.
• 7281-EA-K24: Door alarm module on 2-gang stainless steel plate with LED and sounder. Includes mortised key switch assembly with dual DPDT switches (1-momentary for reset & 1-maintained for shunt). One set of contacts from each switch may be used to signal an independent system.
• 7281-EA-K24xK: Same as 7281-EA-24 above supplied with 1-1/8” mortise cylinder.
• 7281-EA-MP23: Door alarm module on 2-gang stainless steel plate with LED and sounder. Includes 1-9/16” dia. momentary res push button (1-N.O. & 1-N.C. contacts).

Specifications:

• Power: .05 Amps @ 12 or 24 VDC
• Trigger: Normally open and normally closed inputs switched to power source ground to activate relay.
• Time Delay: Timing cycle begins on clo sure of normally closed trigger or opening of normally open trigger. Time period adjustable from 2 to 60 seconds
• LED Indicator: Bi-color LED follows state of timer relay (red = relay off/green = relay on)
• Relay: DPDT - rated @ 3 amps

Resouces

7281 SERIES DOOR ALARMS BROCHURE