GAI-Tronics 10959-903 Manuale - Pagina 5

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HARD-WIRED SYSTEM w/RADIO ACCESS INTERCONNECTION DIAGRAM

The Hard-wired System w/Radio Access Interconnection Diagram depicts the signal flow and operation.

The ACC2500 Desktop Control Station communicates with the 10959-903 Audio Messenger Interface to

send pre-recorded or live audio to the main Audio Distribution Cabinet (ADC). The main ADC amplifies

the signal and passes it through to another ADC, amplified speakers, stanchion broadcast products, or PA

interfaces. Only those assemblies programmed for the transmitted DTMF access code will activate and

broadcast the received audio. Any radio in the system, if equipped with a DTMF keypad, has the ability

to access the system for live voice broadcasts. Additionally, live voice broadcasts can be initiated from

the existing telephone system. The same DTMF access codes will be used for both RF and telephone

broadcasts.

For example purposes, the system noted on the interconnection diagram has been divided into three

distinct areas or Zones; Zone 1, Zone 2, and Zone 3. Each zone includes the following areas:

Zone 1 includes Zone 1 (Bldg. 1 and Bldg. 2) and the Stanchion Broadcast Assembly and

Addressable Amplified Speaker located in the North Parking Lot area (access code 1001)

Zone 2 includes Building 1 and Building 2 only (access code 1002)

Zone 3 includes both internal and external speakers located in/on Building 3 and the

Stanchion Broadcast Assembly located in the South Parking Lot area (access code 1003)

All Zones (access code 2222)

Note: Access codes used in the example are arbitrary and can be programmed for 2 to 8 digits

(all codes must be the same number of digits).

Each device installed in the example system will be programmed for a minimum of three access codes

(individual, zone, all). The speakers installed at buildings 1 and 2 will be programmed for four codes, due

to the fact that they are part of two separate zones. Building 1 and Building 2 each have two speakers

mounted to them.

These two buildings, combined with a Stanchion Broadcast Assembly and an

Addressable Amplified speaker located near the North Parking Lot, are considered Zone 1. Building 1

and Building 2, as a stand-alone entity, are considered a zone itself (Zone 2). Transmitting the Zone 1

access code would cause all four speakers on the buildings, the stanchion, and the single amplified

speaker to broadcast. If the access code for Zone 2 is transmitted, only the speakers on Buildings 1 and 2

would broadcast. It is also possible to access any single speaker or stanchion within these zones, if

desired.

For the sake of simplicity and understanding, we'll assume that the desired operation is to enter a DTMF

code and perform a live voice page. Here are the steps needed from each broadcasting device (Desktop

Controller, telephone, radio). In this scenario, the person broadcasting intends to perform a live voice

broadcast into Zone 1 (code 1001).

ACC2500 Desktop Controller: -

Telephone: -

Press the CALL button

Enter the code 1001 via the keypad (will be seen in the LCD display)

Press and hold the TRANSMIT button or handset pressbar

Begin speaking when TALK NOW appears in the LCD display

Release the TRANSMIT button or handset pressbar when complete

Dial the extension assigned to system access

Wait for voice instructions and splash tone, then dial the code 1001

and begin speaking

Hang up when broadcast is complete

Radio: -

Select the associated operating frequency on the radio

Press and hold the PTT switch while entering the code 1001

Still holding the PTT switch, speak into the radio

Release the PTT switch when broadcast is complete