Ifb Function - ASL INTERCOM PS 6379 Mk2 User Manual

45 HEADSET MIC GAIN trimmer
With this trimmer the gain of the headset
microphone can be adjusted (factory set for a
dynamic headset microphone).
10.0

IFB FUNCTION

With the IFB Mode switches #36 on the rear panel, channel E respectively channel F can be put into
IFB Mode, which is indicated on the front panel by lit IFB Mode LED indicators. 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 auxiliary signal. The talent has a headphone or an earpiece,
connected to a so-called IFB receiver (1 channel / listen only) or a standard 1-channel ASL analog
beltpack.
IFB channel Properties:
•
The TALK button of an IFB channel is
momentary only and must be kept
pushed while talking.
•
Whilst the TALK button of an IFB
channel is kept pushed the level of the
AUX signal to that channel is dimmed
automatically. This is the so-called IFB
Dim Factor which can be adjusted
(0% to 100%) by turning knobs #23 for
each IFB channel separately .
•
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 one can talk to an IFB channel
and to all intercom channels of which
the TALK buttons are enabled (the
corresponding Talk LEDs were lit), the
position of a certain DIP switch has to
be changed. See section 11.0, DIP
switch A
WARNING: A channel from another intercom system should via its system link connector
not be linked to a channel which is in IFB mode.
User Manual PS 6379 Mk2 / February 2013 © ASL Intercom BV
46 GOOSENECK MIC GAIN trimmer
With this controls the gain of the gooseneck
microphone can be adjusted (factory set for the
electret gooseneck microphone).
•
For as long as the TALK button of an
IFB channel is kept pushed, the Listen
functions of the intercom channels are
disabled automatically (one does not
hear the communication on the
intercom channels). To achieve that
these Listen functions are not disabled
if an IFB TALK button is pushed, the
position of a certain DIP switch has to
be changed. See section 11.0, DIP
switch B
•
The CALL function of an IFB channel
is automatically disabled (one can't
send a Call signal from and does not
receive a CALL signal on such a
channel)
•
Both the Mic Mute button (#7) and the
Buzzer Mute button (#8) of an IFB
channel are automatically disabled.
Pushing the ALL MIC MUTE button or
the ALL BUZZER MUTE button has no
effect on a channel which is in IFB
mode.
PAGE 14