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User Manual PS 6379 / May 2011 © ASL Intercom BV
12 BUZZER VOLUME trimmer
This trimmer adjusts the volume of the internal
buzzer. The buzzer is activated if a CALL button of
the PS 6379 (or a CALL button of any other station
on the party lines to which the PS 6379 is
connected), for longer than 2 seconds, provided the
buzzer is not muted (see #21 and #26).
13 PGM VOLUME
This knob adjusts the listen volume of the PGM input.
The signal of the PGM input can only be heard on
the speaker and/or headset of the PS 6379 and does
not appear on the intercom lines. To achieve that the
PGM signal is automatically dimmed to zero as soon
as a TALK button is pushed, the position of a dip
switch has to be changed (See section 11.0, dip
switch No 6 in block A). The position of jumpers #44
determine whether the program audio listen level is
also controlled by the Master Volume knob (#6).
14 HEADSET connector
To this XLR-4 connector of a headset can be
connected when private conversation is desired.
The headset must have a can impedance of
minimum 200 ohms. When the headset has to cans
in parallel , each can must have a impedance of
minimum 400 ohms. The headset microphone may
be of the dynamic or electret type. The gain for the
headset microphone can be adjusted by trimmer
#45.
Pin assignments :
1. Shield mic. (GND)
2. mic. +
3. phones +
4. phones -
When connecting a headset, speaker and gooseneck
microphone are disabled automatically. The speaker
can be enabled again by pushing the SPEAKER
on/off button ( #8). The PS 6379 can optionally be
equipped with a XLR-5 headset connector for
binaural use. Internal jumpers determine - for each
channel separately - the routing of the audio to the
headset cans: either to the left can, or to the right can
or to both cans. (See #43 „Jumper Settings‟).
15 GOOSENECK microphone
This is an electret noise cancelling microphone.
A limiter prevents the mic pre-amp from clipping
when speaking close in the microphone. The
microphone is automatically disabled when a
headset is connected to the PS 6379. The mic gain
can be adjusted by trimmer #46.
16 LOUDSPEAKER
A high quality loudspeaker driven by a 2.9 Watt
amplifier. The speaker is automatically disabled as
soon as a headset is connected. It can be switched
on again by pushing Speaker On/Off switch #8.
17 AUX buttons (one for each channel)
By pushing one of these AUX buttons, the auxiliary
signals (coming from AUX input connector #34) are
routed to the corresponding intercom channel. If an
IFB button (#27) is pushed, these AUX buttons are
for routing the auxiliary signals coming from IFB
(AUX) input connector #36 to the corresponding IFB
channel . The AUX buttons are also used when the
auxiliary signal levels have to be adjusted (see
section 10.1 and 10.2).
18 AUX LEVEL / DIM FACTOR knob
With this knob the auxiliary signal levels and the
various dim factors can be adjusted, see section 10.
The knob is also used to adjust the light intensity of
the LEDs in the Mic Mute, the Buzzer Mute, the Aux
and the IFB push buttons (see #22)
19 AUX LEVEL / DIM FACTOR LED bar
This LED Bar indicates the various Auxiliary signal
levels and dim factors ( see also section 10.0)
20 ALL MICS MUTE button
With this push button the TALK buttons of the
channels on the stations which are connected to the
intercom lines coming from the PS 6379, can be
remotely disabled (the microphone signal of these
stations is no longer sent to these party lines). On
each of these stations the disabled TALK buttons can
be enabled again by pushing them.
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