GAI-Tronics 13352 - Operation; Use Cases; Generic Broadcast Activation; Selective Broadcast Activation

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Model 13352, 13362, and 13372 Addressable Amplified Speaker Assemblies Pub.: 43004-030A
d:\radio products-draft\gtc 43004\43004-030a\43004-030a.doc
06/05
Operation
Use Cases
Generic Broadcast Activation
Step Action Response
1 Page closure (Model 13352) or
carrier-detect (Model 13362/
13372) is detected.
Speaker assembly activates and waits for audio signal.
2 Audio is present. The speaker assembly routes the audio signal through AGC to
the speaker amplifier at a constant signal level and broadcasts
over the loudspeaker.
3 Page closure (Model 13352) or
carrier-detect (Model 13362/
13372) is de-activated.
The speaker assembly disables the speaker amplifier and
returns to sleep mode after a predetermined amount of time.
Selective Broadcast Activation
Step Action Response
1 Page closure (Model 13352) or
carrier-detect (Model
13362/13372) is detected.
The speaker assembly activates and waits for correct Page ID.
2 Correct Page ID is received. The speaker assembly enables speaker amplifier and waits for
audio signal.
3 Audio is present. The speaker assembly routes audio signal through AGC to
speaker amplifier at a constant signal level.
4 Page closure (Model 13352) or
carrier-detect (Model 13362/
13372) is de-activated.
The speaker assembly disables the speaker amplifier and
returns to sleep mode after a predetermined amount of time.