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Belo
w are some illustrative examples:
Example 1: Emergency Tone/Emergency Announcement Bypass
The
Tone Trigger
1 and Overr
ide inputs are used to provide emergency tones and live
emergency announcements and when this happens any local attenuators are to be
bypassed to ensure that emergency announcements can be heard.
The AUX relay contacts will signal the attenuators to go into the bypass mode.
Program the UTI312 with the Override and Tone Trigger events enabled and all
others disabled. In this case the UTI312 can be in Event-Driven or Priority-
Driven Mode since the application only involves the two highest priority inputs.
Nevertheless, set the operation for Priority-Driven mode with the No Delay
option since the AUX relay contacts need to activate during the event. Now,
when either the Tone Trigger OR Override input becomes active the AUX relay
will signal the attenuators to bypass. During normal paging, Tone Trigger 2 or
Night Ring, the attenuators still control the audio level of their associated
speakers.
Example 2: Strobes Flash to Announce Night Ring
Strobes throughout a facility are to flash whenever a night line rings to provide a visual
alert of the ringing line, regardless of whether or not the night ring tone can be heard.
Program the UTI312 with the Night Ring event enabled and all other events
disabled. Select the Event-Driven Mode since the strobes are to flash when the
Night Ring line is ringing independent of whatever other events are taking place
with the UTI3
12. No Delay should be selected so that the AUX relay contacts
activate during the event.The strobes will flash for as long as the night line rings.
If a Page,Tone Trigger or Override page occurs during this event, the Night Ring
tone will stop, but the strobes will continue to flash.The strobes stop only when
the night line stops ringing.
Example 3: Message Playback Following Tone
A message is to be played immediately after a chime tone is produced.
In this application the Tone Trigger 1 input will be activated to cause the chime
tone (one of the UTI312’s selectable tones). After the tone finishes the AUX
relay contacts will trigger an audio playback device with a
1-second contact
closur
e pulse
. Program the UTI3
12 with the
T
one Trigger
1 e
v
ent enabled and
all other events disabled. Select the Event-Driven Mode (see below about issue
using Priority-Driven Mode in this case). Select the Delay option so that the
contact will pulse immediately after the event finishes. Now, whenever the Tone
Trigger 1 is activated a message will play immediately after the tone stops. A
good way to get the message into the paging system is to use the Override input
if it is available.
Priority-Driv
en Mode Issues
Care should be taken when using the Priority-Driven Mode because it can cause some unexpected results.When
the event selected to control the AUX relay is interrupted by a higher priority event that is not enabled, the UTI312
will consider that the
A
UX r
elay event has finished even if it hasn't, and the relay will change states. If the Delay
option is selected,
then the UTI3
12 will pulse the
A
UX r
ela
y contacts.
If the
A
UX relay event is still active after the
high priority event is completed, the AUX relay will again activate.This operation can lead to multiple changes in the
relay state (when No Delay is selected) or multiple pulsations of the AUX relay (if the Delay option is selected).
Care should be taken in using the Priority-Driven Mode, especially when low priority events are enabled.
Enabled/
Disabled
Code
Event
Override Enabled 071
Tone Trigger 1 Enabled 073
T
oneTrigger 2
Disabled 074
Page Disabled 076
Night Ring Disabled 078
Mode
Event Disabled -
Priority Enabled
082
Delay
Delay Disabled -
No Delay Enabled 081
Enabled/
Disabled
Code
Event
Override Disabled 070
Tone Trigger 1 Disabled 072
T
oneTrigger 2
Disabled 074
Page Disabled 076
Night Ring Enabled 079
Mode
Event Enabled 083
Priority Disabled -
Delay
Delay Disabled -
No Delay Enabled 081
Enabled/
Disabled
Code
Event
Override Disabled 070
Tone Trigger 1 Enabled 073
ToneTrigger 2 Disabled 074
Page Disabled 076
Night Ring Disabled 078
Mode
Event Enabled 083
Priority Disabled -
Delay
Delay Enabled 080
No Delay Disabled -