GAI-Tronics 10959-904 Manuale - Pagina 5

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Models 10959-903 and 10959-904 Wall-Mount Audio Messenger Interface

Acoustical feedback, or howling, can be a problem when broadcasting from a telephone. This occurs

when the telephone microphone is too close to a speaker that is broadcasting the audio created by the

microphone. The AMI includes an integral feedback eliminator circuit to prevent feedback. Incoming

telephone broadcasts are recorded and stored in the AMI until the telephone connection is terminated

(caller hangs up) when the AMI is configured to use the feedback eliminator. The AMI plays the saved

broadcast after termination of the call. The delay between the actual speech and the recording playback

eliminates the possibility of feedback.

The telephone interface has multiple operational modes that are configured with the AMI Configuration

Tool software application. The operational modes are as follows:

Model 10959-903



Record Page—Records a message and delivers it to the audio line output.



Live Page Mode—Delivers a live voice message (not pre-recorded) to the audio line output.



Manual/Disabled—Do not use.

Model 10959-904



—Delivers a live voice page (not pre-recorded) to the page line output. The party line is

Page/Party

held open following the page.



Record Page—Records a page, and delivers it to the page line output.



Mixed Mode—Records a page, delivers it to the page line output, and holds the party line open

following the page.



Live Page Mode—Delivers a live voice page (not pre-recorded) to the page line output. The party

line is not open following the page.



Ring Mode—Does not deliver a page, but instead plays a configured message on the page line to

signal the incoming call.



Manual/Disabled—The telephone interface does not automatically answer the telephone. An input

can be configured for Manual Access to allow an attendant to manually answer the phone and transfer

calls to a party line.

Radio Operation

The AMI can be used to access a mobile or base radio for wireless broadcasting. Connect the AMI's

audio output and control output terminals to the transmit audio and PTT inputs of the radio's accessory

connector to enable broadcast of live speech and alarm tones/messages over RF (Radio Frequency)

airwaves from the Model ACC2500 desk set.

: Radio audio levels can vary greatly between manufacturers. The AMI's audio level output is

OTE

1 V

. Please contact our Service Department at 1-800-492-1212, prompt no. 2, if this level

RMS

overdrives the radio input, as an attenuation circuit may be required.

Page/Party

Operation (Model 10959-904 Only)

The Model 10959-904 AMI is equipped with a PPI (Page/Party

messages/alarms and connects telephone calls to a Page/Party

Level Control) tone during message/alarm broadcasts that give VLC-equipped Page/Party

signal to change the volume of the message/alarm being played.

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Interface) PCBA that plays

system. It can generate the VLC (Volume

Pub. 42004-442D

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