Front Panel Controls; Rear Panel Connectors - ASL INTERCOM PS 29M User Manual

5.0

FRONT PANEL CONTROLS

1 VOLUME control knobs
These knobs are for adjusting the listen levels, for
each channel separately.
2 TALK buttons
These buttons allow talking to each channel
separately or to both channels simultaneously.
When a TALK button is switched on, its large
green LED is lit.
Momentary switching:
When a TALK button is pushed and held, the
microphone signal is sent to the referring intercom
channel until the button is released
6.0

REAR PANEL CONNECTORS

4 LINE connector channel A
5 LINE connector channel B
These XLR-3 connectors are for connecting the
PS 29 M to intercom party lines.
Pin assignments:
Pin 1: 0V / ground shield
Pin 2: +30V DC power wire
Pin 3: audio wire
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User Manual PS 29 M / Issue 2011 © ASL Intercom BV
Latched switching:
When a TALK button is pushed shortly it is
electronically latched and the microphone signal
is sent to the referring intercom channel. When
pushed again the TALK button switches Off.
Mic Mute when latched On:
After a so-called Mic Mute signal has been
received from a Pro Series master station or
power supply, the connection between
microphone and intercom channel is interrupted.
By pushing the TALK button, the connection is
restored and one can talk to the intercom channel
again.
3 CALL buttons
By pushing one of this buttons the Call function is
activated for the referring party line channel. With
a momentary push a Call signal is sent to all
intercom stations connected to that channel.
The Call LED's on this PS 29 M and on all
stations connected to the same party line start
flashing. By pushing the Call button for 2 seconds
the Call Buzzers are activated, provided the
buzzers are not muted by a Buzzer Mute signal
received from a Pro Series master station or
power supply.
After the CALL button is released the LED's
continue to flash for a further 2 seconds.
6 HEADSET connector
This XLR-4 connector is for connecting a headset
to the PS 29 M beltpack.
The impedance of the headset can must be
minimum 200 ohms; in case the headset has 2
cans in parallel, the impedance of each can must
be minimum 400 ohms.
Pin assignments:
Pin 1: shield mic. (GND)
Pin 2: mic. +
Pin 3: phones +
Pin 4: phones –
As an option, the PS 29 M can be fitted with a
XLR-5 headset connector, allowing to hear
channel A on the left headset can and channel B
on the right headset can.