ASL INTERCOM PS 4379 Manuel d'utilisateur télécharger pdf (Page 15)

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User Manual PS 6379 / May 2011 © ASL Intercom BV

12.0 MODES

12.1 IFB mode

By pushing one of the IFB buttons #27, the

corresponding channel is put into IFB Mode. The

channel is now a so-called IFB channel, used for one

way communication from i.e. a director/producer to a

talent in a broadcast environment: If the director

pushes the TALK button of an IFB channel, the talent

hears the producer but may also listen to an (IFB)

auxiliary signal. The talent has a headphone or an

earpiece, connected to an so-called IFB receiver (1

channel / listen only) or a standard 1-channel ASL

beltpack.

AUX signals:

If an IFB button is pushed the AUX button (#17) of

the corresponding channel switches on automatically

and the signal coming from the IFB auxiliary input

(#36) is routed to that channel. If no IFB-Auxiliary

signal is needed, switch off the AUX button of that

channel. To achieve that the signal coming from

AUX-input #34 is routed to an IFB channel the

position of certain dip switches have to be changed.

See section 11.0, the dip switches of block E. This

feature allows the AUX signal coming from AUX input

#36 is routed to certain IFB channels, whilst the AUX

signal coming from AUX input #34 is routed to certain

other IFB channels.

TALK buttons and IFB Dim Factor:

The TALK button of an IFB channel is momentary

only and must be kept pushed while talking. Whilst

the TALK button is pushed the level of the (IFB) AUX

signal on that channel is dimmed automatically by

50%. This is the so-called IFB Dim Factor which can

be adjusted (see section 10.3). For as long as the

TALK button of an IFB channel is kept pushed, the

TALK buttons of the intercom channels are switched

off automatically. To achieve that the TALK buttons

of the intercom channels remain to be switched on,

the position of a dip switch has to be changed (See

section 11.0, dip switch No 3 of block A)

Mic Mute & Buzzer Mute:

Both the Mic Mute button (#25) and the Buzzer Mute

button (# 26) of an IFB channel are disabled. The

LEDs in these buttons are not lit. Pushing the ALL

MIC MUTE button or the ALL BUZZER MUTE button

has no effect on a channel which is in IFB mode.

WARNING:

An IFB channel should NOT BE LINKED to another

intercom system via its SYSTEM LINK connector

12.2 PAGING mode

By changing the position of one of the dip switches of

block C (see section 11.0), the corresponding

channel can be put in Paging Mode. The channel is

now a so-called Paging Channel, used for one way

communication to dressing rooms etc. , where so-

called Paging receivers are installed.

A Paging receiver is a dedicated 1-channel speaker

station with a volume control and override circuitry,

however without gooseneck microphone and without

headset connector and without a (buzzer) Call

function. Such a receiver is to be connected to a

Paging channel of the PS 6379 via standard

microphone cable.

AUX signal:

To a Paging channel an auxiliary signal can be

routed (e.g. the show relay signal) coming from AUX

input #34. For information on how to adjust the AUX

volume, see section10.1.

TALK buttons & Paging Dim factor:

The TALK button of a Paging channel is momentary

only and must be kept pushed while talking. Whilst

the TALK button is pushed the level of the AUX

signal on that channel is dimmed automatically by

50%. This is the so-called Paging Dim Factor which

can be adjusted (see section 10.6). For as long as

the TALK button of an IFB channel is kept pushed,

the TALK buttons of the intercom channels are

switched off automatically. To achieve that the TALK

buttons of the intercom channels remain to be

switched on, the position of a dip switch has to be

changed (See section 11, dip switch No 2 of block A)

Triggering the override circuitry in Paging receivers:

By pushing the TALK button of a Paging channel, a

DC signal (same as a Call signal) is put on the line to

the Paging receivers. This DC signal triggers the

override circuit in a Paging receiver, by which the

listen volume is brought to a preset level (the

override level) irrespective how the volume was set

by the listeners in the room. The override level is set

at the Paging receiver itself.

Mic Mute:

The Mic Mute button (#25) of a Paging channel is

automatically disabled (the corresponding Mic Mute

button is not lit). Pushing the ALL MIC MUTE button

has no effect on a channel which is in Paging mode.

Buzzer Mute:

On a Paging channel there is a permanent Buzzer

Mute signal. The corresponding Buzzer Mute button

#26 is lit. The permanent “Buzzer Mute Status” is not

for Paging receivers (they do not have a Call

function), but is for situations where one wants to

connect an intercom station to a Paging channel. The

buzzer of such an intercom station is disabled, but

the Call LED of the station is lit for as long as the

TALK button of a Paging channel is pushed. If this is

considered to be inconvenient, do not connect

intercom stations

WARNING::

A Paging channel should NOT BE LINKED to

another intercom system via its SYSTEM LINK

connector

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