Bogen UTI312 Example 1 Emergency Tone/Emergency Announcement Bypass, Priority-Driven Mode Issues

Below are some illustrative examples:

Example 1: Emergency Tone/Emergency Announcement Bypass

The Tone Trigger 1 and Override 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 UTI312. 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.

		Enabled/	Code
		Disabled
	Override	Enabled	071
Event	Tone Trigger 1	Enabled	073
	ToneTrigger 2	Disabled	074
	Page	Disabled	076
	Night Ring	Disabled	078
Mode	Event	Disabled	-
	Priority	Enabled	082
Delay	Delay	Disabled	-
	No Delay	Enabled	081

		Enabled/	Code
		Disabled
	Override	Disabled	070
Event	Tone Trigger 1	Disabled	072
	ToneTrigger 2	Disabled	074
	Page	Disabled	076
	Night Ring	Enabled	079
Mode	Event	Enabled	083
	Priority	Disabled	-
Delay	Delay	Disabled	-
	No Delay	Enabled	081

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 closure pulse. Program the UTI312 with the Tone Trigger 1 event 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-Driven Mode Issues

		Enabled/	Code
		Disabled
	Override	Disabled	070
Event	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	-

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 AUX relay event has finished even if it hasn't, and the relay will change states. If the Delay option is selected, then the UTI312 will pulse the AUX relay contacts. If the AUX 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.

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