Technical Reference Manual – SB-293
01838-002 Rev. 3.0
Printing Date
Page 14 of 32
July-1998
Alarm Out Relay
Activating an audio (or a silent) alarm is controlled by the alarm out relay. The controller energizes the
alarm out relay, causing the alarm out relay to change its state. In its new state the normally open
circuit is closed activating the alarm. Refer to Figure 8 on page 17 for a typical alarm out relay wiring
diagram.
NOTE: The Doors32™ program allows the alarm out relay to be designated for annunciating both
door forced and door held open alarms or for annunciating only door forced alarms (the door held
open condition is then programmed for either annunciation on an output relay or for no annunciation
at all).
Door Held Open Relay
A door held open alarm can be annunciated on its own output relay (distinguishing it from a door
forced alarm). Programming in the
Doors32
™ program routes door held open alarms to the general-
purpose output relays (refer to the
Doors32
™ Users Guide, p/n 01821-002 for configuration
information). The controller energizes the alarm out relay, causing the alarm out relay to change its
state. In its new state the normally open circuit is closed activating the alarm. Refer to Figure 13 on
page 21 and Figure 14 on page 22 for a typical door held open alarm relay wiring diagram.
General Purpose Output Relay
A general-purpose output relay receives a signal from the controller that energizes the output relay,
switching its state. This state change typically initiates or ends an action outside of the controller.
A device may be attached to the relay's normally closed circuit so that it is always on until a signal
from the controller energizes the relay, opening the circuit and turning the device off. The general-
purpose output relay is configured through the
Doors32™
access control software.
A normally closed general-purpose output relay may be used to disable a remote sensor. The
controller opens the normally closed relay circuit based on programmed instructions within the
controller or from a direct command by an operator. The opened circuit cuts power to the remote
sensor, temporarily disabling it. Refer to Figure 16 on page 23 or Figure 19 on page 26 for a typical
general-purpose normally closed output wiring diagram.
A device may be attached to the relay's normally open circuit so that it is always off until a signal from
the controller energizes the relay, closing the circuit and turning the device on. The general-purpose
output relay is configured through the
Doors32™
access control software.
A normally open general-purpose output relay may be used to activate a video camera. The controller
closes the normally open relay circuit based on programmed instructions within the controller or from
a direct command by an operator. The closed circuit provides power to the video camera, allowing an
operator to remotely view the area covered by the camera. Refer to Figure 15 on page 23 or Figure
18 on page 26 for a typical general-purpose normally open output wiring diagram.
SYSTEM INSTALLATION
