Digitus Biometrics dbServerRackV2 Zero-U, Руководство пользователя и инструкция по установке

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Model: db ServerRack V2 Zero-U Digitus Biometrics, Inc. 2011
Page 19 of 24
Using the Alarm Output
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Certain events create an alarm condition. These events are:
~
A door/panel with a Tamper Switch Attached was opened.
~ A door/panel with a Door Contact Switch was opened without a valid fingerprint identification.
~ A door/panel with a Door Contact Switch was opened and left open for longer than the Propped Door
Delay (set via the DAS software).
~ A Duress Finger was used to open a cabinet. This will be a silent alarm at the cabinet, but will still trigger the
Alarm Output.
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The Alarm Output provides a method to connect the db ServerRack Access Control unit to a third-party product, to
alert it that an alarm condition has occurred.
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The Alarm Output terminals are shown in Figures 19a and 19b.
Figure 19a
Figure 19b
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12V can be used to provide a 12 Volt supply to an external device.
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NC is the Normally Closed relay contact
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COM is the Common relay contact
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NO is the Normally Open relay contact
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GND can be used in conjunction with 12V to provide a 12 Volt supply to an external device.