14
11
ON/OVERLOAD LED
This LED is lit green when 30 V DC line power is supplied to the corresponding channel.
The LED is lit red when too many user stations have been connected to the corresponding
channel or if there is a short circuit on that channel. A circuit breaker immediately discon-
nects the line power from that channel and resets (restores line power) automatically
within 2 seconds after the cause of the overload has been removed.
12
IFB MODE LED indicator (for channels E and F only)
This yellow LED is lit if the channel is put into IFB mode, see section 10.0
13
TALK TO ALL button
By pushing and holding this (momentary only) button one may talk to all intercom chan-
nels simultaneously. The green LEDs in the TALK buttons of all channels light up, except
for the LEDs in the TALK buttons of the channels in IFB Mode. To also include the TALK
buttons of the channels in IFB Mode, the position of certain DIP switches must be changed
(see section 11.0, DIP switch C).
14
CALL TO TALK button
By shortly pushing this (momentary only) button a visual Call signal is simultaneously sent
to all channels of which the TALK buttons are switched on. All corresponding Call LEDs of
the PS 6379 Mk2 (except the ones of the channels in IFB Mode) and of all connected sta-
tions start flashing. When holding the CALL TO TALK button pushed for 2 seconds the
buzzer is activated, should no buzzer mute be activated for that channel
.
After the CALL
TO TALK button is released the LEDs continue to flash for a further 2 seconds.
