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All operating elements and connections de -
scribed can be found on the fold-out page 3.
1 Operating Elements
and Connections
1 Hand-held microphone
2 Talk button; keep it pressed for an announce-
ment
3 Warning indication EMERGENCY; flashes in
an emergency situation
4 Volume control for the siren
5 LED FAULT; lights up when a fault occurs
6 Volume control LEVEL for the microphone in
case of an announcement
7 Switch "Compression" for dynamic limitation
of the microphone signal
8 LED "Power / Low Voltage"; lights up as a
power LED and flashes if the supply voltage
is too low
9 Switch for activating / deactivating the
acoustic warning signals
10 Speaker for acoustic warning signals
continuous sound: emergency situation
pulsating sound: fault
11 LED "CPU Error"; lights up with malfunction
of the processor of the microphone unit
12 Headphone jack for connection of head-
phones with an impedance of ≥ 32 Ω to check
a recording
13 Cover plate as a protection against unau -
thorized operation of the announcement
recorder
14 Switch MODE to select the operating mode of
the announcement recorder
15 Selector switch for the frequency of the auto-
matic announcement
"1 Time" one-time announcement
"Repeat" continuously repeated announce-
ment
16 Button "Play" to start the reproduction of a
recorded announcement and to stop the
reproduction
17 LED PLAY lights up during the recording and
flashes when reproducing an announcement
18 Volume control for the reproduction of a re -
corded announcement
19 Selector switch for the audio source of a re -
cording
"P.T.T"
hand-held microphone (1)
"EXT"
an audio source connected to the
jacks EXT REC INPUT (26)
20 Button "Recording" to start the recording of
an announcement and to stop the recording
21 Button "Erase" to delete an announcement
recorded before
22 LEDs as a level indication of the signal to be
recorded
"SIG"
lights up when a signal of suffi-
ciently high level is available
"Clip"
lights up when the signal level is
too high; in this case reduce the
recording level with the control (23)
6
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23 Control for the recording level
24 Connection with screw locking for the hand-
held microphone (1)
25 RJ45 jack "OUTPUT" for connection to the
amplifier PA-40120
26 RCA jacks "EXT REC INPUT" for connection
of a signal source for recording an announce-
ment
27 Connection "E / M TRIGGER" to signal an
emergency situation (e. g. from a fire alarm
system) as plug-in screw terminals
28 Selector switch "SIREN" for the type of siren
sound emitted via the amplifier PA-40120 in
an emergency situation
FLAT
EU
Note: A change only becomes effective after
switching on the amplifier again or interrupting the
power supply.
29 Power supply jack (24 V ) for low voltage
plug 5.5 / 2.1 mm (outside / inside diameter)
with any polarity
30 Opening for the cable guidance from the rear
side
31 Alternative possibility for the cable guidance;
remove pre-punched plate if the cables are to
be guided from below
2 Important Notes
The unit corresponds to all relevant directives of
the EU and is therefore marked with
G
The unit is suitable for indoor use only. Protect
it against dripping water and splash water,
high air humidity, and heat (admissible ambi-
ent temperature range 0 – 40 °C).
G
For cleaning only use a dry, soft cloth, never
use chemicals or water.
G
No guarantee claims for the unit and no liabil-
ity for any resulting personal damage or mate-
rial damage will be accepted if the unit is used
for other purposes than originally intended, if it
is not correctly connected or operated, or not
repaired in an expert way.
3 Applications
In connection with the 4-zone amplifier PA-40120,
this microphone unit serves for announcements
in emergency situations, e. g. for alarming or
evacuation. It is equipped with a hand-held
microphone with function monitoring and a
recorder for recording an announcement. The
storing of the recording is non-volatile, i. e. the
recording is maintained even in case of failure of
the voltage supply. If an emergency situation is
signalled (e. g. from a fire alarm system), after an
alarm siren sound the automatic reproduction of
the recording is made via the amplifier. At the
same time the microphone unit emits a visual
and optionally an acoustic warning signal. A fail-
ure of the microphone unit or its microphone is
also signalised to the amplifier and displayed
there.
manuals search engine
first ascending, then steady sound
emergency signal according to
DIN 33 404/ EN 457
.
If the unit is to be put out of operation
definitively, take it to a local recycling
plant for a disposal which is not harmful
to the environment.
4 Mounting
Select an optimum mounting place for operating
the unit. At the distance of the mounting holes on
the rear side of the microphone unit screw four
screws or screw hooks into the wall and suspend
the microphone unit there. The connection
cables can be guided through the opening in the
rear side of the housing (30) or through the lower
side of the housing. Remove the pre-punched
plate (31) for guiding the cable through the lower
side.
5 Connections
5.1 Amplifier PA-40120
Connect the RJ45 jack OUTPUT (25) of the
microphone unit, e. g. via the supplied cable, to
the amplifier PA-40120. The amplifier has a con-
nection of its own for each of the 4 PA zones.
Therefore, an emergency announcement can
only be heard in the PA zone for which the micro-
phone unit is connected. The possible cable
length is 1 km as a maximum.
To apply a microphone unit to several PA
zones, the output of the microphone unit has to
be connected in parallel to all desired inputs; i. e.
the conductors of the connection cables must
correspondingly be connected in parallel.
5.2 Additional power supply unit
For connection cables of more than 500 m length
the power supply via the amplifier is not suffi-
cient. In this case connect an additional power
supply unit with 24 V
to the jack EXT IN (29).
The required low voltage plug has the dimen-
sions 5.5 / 2.1 mm (outside / inside diameter) with
any polarity.
5.3 Alarm device
An emergency situation to which the microphone
unit responds with an automatic announcement
in addition to other actions (
chapter 7), is sig-
nalled via the connection E / M TRIGGER (27).
Connect here an NO contact (normally open),
e. g. an alarm relay at the output of a fire alarm
system or a basic switch for manual activation.
5.4 Hand-held microphone
Connect the hand-held microphone with its plug
(24) to the jack provided for it and lock it by fas-
tening the cap nut.
Note: The function of the microphone is permanently
monitored by the microphone unit. A microphone which
is defective or not correctly connected is immediately
indicated at the microphone unit and at the amplifier.
5.5 Audio source with line level
To record an announcement, an external audio
source with line level may be an alternative to
the hand-held microphone (e. g. for taking over a
pre-made announcement). Connect this audio
source to the RCA jacks EXT REC INPUT (26).
The jacks are available for stereo signal sources
as L (left) and R (right). As the microphone unit
operates monophonically, the mono sum results
internally from the stereo signals.
5.6 Headphones
To check a recording, stereo headphones with a
minimum impedance of 32 Ω may be connected
to the 6.3 mm jack
(12),
As long as headphones are connected to this
jack, the recording is not sent to the amplifier.
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