SAN Annunciator Manual
17
SWU-8 Programming Applications Notes
Audio Evacuation System Controls
The module switches are used to activate individual speaker circuits,
typically on a floor by floor basis. The top adjacent LED is typically used
to indicate an active or an open speaker circuit, and is illuminated when a
supervisory open is detected on the speaker zone. The lower LED is used
to indicate a shorted speaker circuit, and is illuminated when a
supervisory short is detected on the speaker zone.
For individual speaker circuit silencing, a second switch is required. The
system is typically programmed such that when the " speaker silence"
switch is activated, the appropriate speaker circuit is RESET and the
upper adjacent LED illuminated, indicating the circuit has been silenced.
The speaker circuit must also be programmed so that all "silenced LEDs"
are RESET upon any alarm condition. This insures valid circuit status
indications at all times.
Fire Fighters Telephone System
The module switches are used to activate individual telephone circuits;
recommended on a station by station basis. The top adjacent LED is used to
indicate an incoming call, and is illuminated when a handset is plugged into
a jack station or removed from the hook switch on a warden station (a
supervisory short is detected by the control module or zone). The lower
LED is the "circuit selected" LED which illuminates when the zone
monitoring the circuit detects a supervisory open, indicating the circuit
selection relay (control module or zone) has connected the circuit to the
telephone riser.
Door Control
Bypass i.e. preventing a door from generating a security alarm. In this
application the upper LED is used to indicate door status (open or closed),
and the lower LED indicates the mode (bypass or normal). The switch is
used to override the normal door mode.
Door Release. The switch activates a control modules (zone) which
interrupts the current to a magnetic door release, allowing entry. The
upper LED indicates door status while the lower LED may be used to
indicate day/night modes or trouble conditions.
Manual Override
The switches may be used to override any automatic system function. The
switching function may have a high priority level such that once manually
activated, an automatic function will not override manual operation.
Typical applications include fan and damper control. LEDs are used to
indicate status and mode of affected devices or systems.
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