ASL INTERCOM PS 6379 MK2 User Manual page 16

With this button the loudspeaker can be switched on or off. The LED in the button is lit
when the speaker is switched on. As soon as a headset is plugged in, the speaker is auto-
matically disabled (if it was enabled before). By pushing the speaker on/off button, the
speaker is enabled again and the audio can be heard over both the speaker and the head-
set. When unplugging the headset, the speaker setting (on or off) is as before the headset
was plugged in.
19 ALL MICS MUTE button
By pushing this button the TALK buttons of the PS 6379 MK2 and the TALK buttons of the
connected remote stations are disabled
(if they were previously enabled). After the ALL MICS MUTE button is being pushed, it is lit
for a few seconds. Also all channel MIC MUTE buttons (#7) are lit for a few seconds.
Disabled TALK buttons (on the PS 6379 MK2 or on a connected remote intercom station)
can be enabled again by pushing them.
20 ALL BUZZERS MUTE button
By pushing this button the buzzers of the connected stations and of the PS 6379 Mk2 can
be muted. After being pushed, all channel Buzzer Mute buttons (#8) are lit. The buzzers
remain being muted until the ALL BUZZER MUTE button is switched off again (the buzzer
mute status is abolished). The channel Buzzer Mute buttons return to their previous sta-
tus (the ones which were lit before the ALL BUZZER MUTE button was pushed remain
being lit).
21 SPEAKER ATTENUATOR trimmer
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