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Background Music (BGM)

If you wish to play BGM, you must con-

nect a background music source. This can

be a CD, Tuner etc and is connected to the

"Background Music In" RCA sockets on

the rear of the Master Switching Unit .

Each zone requiring background music

must be switched ON from the "Zone

BGM Selector" switches on the front panel

of the Master Switching Unit.

Each zone output is a low impedance bal-

anced signal suitable for feeding directly

into a power amplifier of suitable power

rating.

As the signal is balanced, the amplifier can

be remotely located with the use of a

shielded 2 core audio lead. This enables

the amplifier to be located up to 100m

from the switch box.

Pre-installation Power Up

Prior to installing the unit in it's perma-

nent location it is important to carry out

some preliminary tests.

Connect power to the Master Unit. Ensure

all paging stations are plugged in. Switch

on at the Master Switching Unit. Power for

the paging stations comes from the Master

Switching Unit. Ensure all zone amplifiers

are switched ON.

Set amplifier volumes to 1/2. Make sure

the background music source is on.

Background music should be heard in all

Figure 2

Note: This figure

shows paging

stations in a

"daisy chain"

configuration

Paging Station 2

Page 2

Altronics A 2083 Zone Paging System

zones with "Zone BGM Selector" switches

(front panel of Master Switching Unit )

turned ON .

Paging station Operation.

To page a "zone" press the switch for that

zone, the LED associated with that zone

will flash.

If more than 1 zone is to be paged , press

additional switches until all the desired

zones are selected.

If you have selected a zone you don't want,

press the switch for the unwanted zone

again and it will cancel.

To page the selected zones, press and

HOLD the"push to talk" switch and speak

into the microphone.

To end paging, release the "push to talk"

switch. The selected zones will automati-

cally cancel after 10 seconds and music

will commence to selected zones. You can

also press the "cancel" switch to cancel

zones selected for paging.

All Call This function allows paging to all

zones. Press "all call" then "push to talk"

switches to page all zones. Release "push

to talk" to end paging.

Cancel Press "cancel" to switch off all

selected zones.

Storing groups of zones

Two function keys (store and recall) are

used for programming groups of zones

into a single number recall just as your

telephone has a single button recall for a

telephone number. Each paging station has

memory to store up to 16 different groups

of zones. Each station in the system can be

individually programmed to suit the oper-

ators requirements.

Individual Zone Amplifier Preamp (Low Level) Switching

"Daisy-chained"

Paging

Station 1

BGM

Paging Stations

Legend

Cat 5 Cable

Screened Cable

10K

INPUT

Local BGM

1-4

Store. To store a set of zones into a single

number recall, first press all the zones

required so the zone LED's are flashing.

Then press "store" then press the number

(1 to 16 ) to store the selected group.

Recall. To recall any group of stored

zones press "recall" then the number

(1 to 16) of stored groups. Press "push to

talk" to page . Releasing "push to talk"

ends paging.

System Busy. The system busy LED will

flash when other paging stations in the

system are paging.

Wait until the "system busy" LED extin-

guishes before selecting other zones to

page. The exception to this is when

"microphone priority 1" is enabled (See

Dip Switch Setup, Page 1).

System adjustment.

Volume levels of paging, BGM and chime

can be adjusted. To adjust these levels (see

figure 6) use the trim pots inside the mas-

ter switching unit. Only to be adjusted by a

qualified installer or service person.

Sensitivity of the paging microphone can

be adjusted using a screwdriver via the

rear of the paging console.

Switched 24V Output. For the operation

of fire evacuation override relays in atten-

uators etc. a switched 24V output is pro-

vided. This is referred to as "external relay

out" on the rear panel.

This is activated every time a zone is

paged to provide 24VDC output from the

external relay. The unit is factory set to

"fail safe" mode for the external relay.

Zone Amp 16

100V OUT

MIC

Speakers From

Amplifier 16

Zone Amp 9

10K

100V OUT

INPUT

MIC

Speakers From

Local BGM

Amplifier 9

Zone Amp 8

10K

INPUT

100V OUT

MIC

Speakers From

Local BGM

Amplifier 8

Zone Amp1

10K

100V OUT

INPUT

MIC

Speakers From

Local BGM

Amplifier 1