I N T E R C O M - S Y S T E M
®
Operation Manual
ProAudio Technik Josef Becker · Zum Wartturm 15 · 63571 Gelnhausen (Germany)
Fon: +49-6051-9140-0 Fax: 9140-59
·
[email protected] · www.proaudio-technik.de
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The basics
Controls on the front side
The wired axxent intercom system was developed for safe communication
between the members of the system operating staff. Contrary to "walkie
talkies" all members communicate with each other in full duplex, meaning
simultaneous speaking and listening.
The system is based on the successful party line technique, which means
that all communicating participants can listen and talk with each other (like in
a conference) meaning that there is no necessity to address the individuals, for
example via a matrix system.
The components are connected with each other via standard 3pin XLR, like
regular balanced microphone cables, which are inexpensive and reliable and avail-
able almost everywhere. Total cable distance of 100 metres and more have been
tried with the system without problems. Each intercom component is equipped
with a minimum of 2 intercom connectors, making the system wiring easy.
A system consists of at least 2 components, e.g. 1 main station plus a belt-
pack or 2 main stations. Each station requires to be voltage powered. Power for
the beltpacks comes from a master station via the microphone cable. Same with
the signal lights. Alternatively the supply voltage can be provided by external
power supply model PS-100. For talking and listening a professional headset is
used, either with one or with 2 ear muffs.
The call signalling is either handled by large separate signal light, looped in
the regular wiring or via the built in signal lights of the components. In addition
a piezo buzzer is integrated and can be activated when required, or preferred
over a light signal. A beltpack (BP-100V) also contains a vibration element, in
case the light is overlooked.
Operating the axxent intercom system is almost self-explanatory, but here
some help by giving you an oversight of the controls and their purpose as well
as providing info on the system interfaces ––>
The model MS-200
is the standard main station of the axxent intercom
system. It has two separate channels so that two user groups may communicate
independently. Theses two groups can communicate separately from each other,
but can not be interconnected. The operator of the main station, however, is
able to communicate with both groups, either separately or with both groups
simultaneously. The call buttons for both groups are also separate. One main
station can supply the operating voltage for the attached intercom components
via a standard XLR microphone cable. One main station provides supply voltage
for a maximum of 14
beltpacks
.
Controls in detail
On the front side of the main station you will find a couple of controls and
plugs. On the left the 4 pin XLR male plug (
1
) for connecting a headset. Close by
on the right (
2
), is the volume control for the earphone of the headset.
Side-Tone controls
(
3
): This control determines the volume of the headsets
microphone. Adjust the volume according to your needs. Too high levels may lead
to feedback, so it is recommended to stay below that level.
The switch (
4
) has three positions:
microphone ON
;
microphone OFF
and
microphone PTT
= Push To Talk.
The switch (
5
)
A, A+B
and
B
determines with which of the user groups you
communicate from the master station.
BUZZER ON OFF
(
6
) is the ON/OFF switch for the piezo acoustical alarm. While
most likely not used during a theatre performance itself, it can be a helpful aid
for rehearsals.
Push buttons (
7
) for the alarm light, separately for channels A + B.
3 pin XLR female plug
(
8
) is intended for an external input audio signal, such
as program- or music signal. Line- and microphone levels are accepted.
The input level control is located on the right hand side of the plug, so is the
switch to determine the channels you want to use, either A, B or both. The power
switch (
9
) is located on the right hand side of the panel. We recommend to con-
nect all components prior to turning on the unit. Controls and connectors on the
rear side are described on the following page ––>
