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2) To prevent interference during signal trans-
mission, make sure that the termination of
the line is correct . Set the switch TERMINA-
TION of the DIP switch block (44) to the lower
position (ON) at the last unit of the chain (or
at the two last units if INPUT 1 and INPUT 2
are used at the module) . For all other units
the switch must remain in the upper position .
3) With a total cable length above 500 m (for
each input at the connection module) or
if more than 10 PA-4000RC units are con-
nected, the power supply via the PA-40120
is not sufficient . In this case connect an ad-
ditional power supply unit with ⎓ 24 V to
the 11
th
PA-4000RC unit or the zone-paging
microphone which has a connection of more
than 500 m .
Connect the power supply unit to the
jack 24 V⎓ (43) . The required dimensions
of the low-voltage plug are 5 .5 / 2,1 mm
(outside / inside diameter) . The polarity is as
desired .
The supply voltage is also routed to the
zone paging microphones that are connected
to the jack INPUT (46) . Thus, these zone pag-
ing microphones do not require a power sup-
ply unit of their own if the first power supply
unit provides sufficient current (current con-
sumption of each PA-4000RC: 63 mA) .
5.5.3 Adjusting the addresses of the units
To enable communication between the am-
plifier and the zone paging microphones, the
PA-4000RC connected must have different
data bus addresses . To assign the addresses,
use the first 5 switches of the DIP switch block
(44) located on the rear side of the zone paging
microphones . Set the addresses continuously
according to the table in figure 9 .
Note: Only assign the addresses while the amplifier
is switched off; address changes made during oper-
ation will not be recognized .
Addresse
Switch
Addresse
1
17
2
18
3
19
4
20
5
21
6
22
7
23
8
24
9
25
10
26
11
27
12
28
13
29
14
30
15
31
16
32
⑨ Address assignment to the PA-4000RC
5.6 Recorder, monitor system
It is possible to connect a recorder or another
audio unit with line input (e . g . a monitor system
to check the outputs) to the RCA jacks REC (25)
or to the 6 .3 mm jack MONITOR (26) . The RCA
jacks are provided for stereo recorders as L (left)
and R (right) . The amplifier is monophonic; there-
fore, the signals at the two jacks are identical .
Adjust the selector switch RECORDING /
MONITOR (4) on the front side of the unit to
define which output signal is supplied .
5.7 Additional amplifier systems
The mixed signals for the respective zone are
available as balanced signals with line level at
the plug-in screw terminals PRE OUT (22) . Here
additional amplifier systems for PA applications
in a larger area may be connected .
5.8 Momentary pushbutton for chime
activation, switch for siren
By means of a normally open contact, a chime
may be added to the signals of each of the
inputs CH1 to CH3 . Three different types of
sound can be selected (
activate the chime, connect e . g . a momentary
pushbutton to the corresponding contact of the
plug-in screw terminals CH1/ CH2 / CH3 (31) and
the common contact (2nd contact from above)
☞
[
fig . 10] .
For a siren sound of high volume in all zones,
connect the upper two contacts of the plug-in
screw terminals via a switch . Contrary to the
sounds of the chime which end automatically
shortly after actuating the respective momentary
pushbutton, the siren can only be heard as long
as the switch is closed .
SIREN
CH1
CH2
CH3
Switch
CHIME
⑩ Connection of momentary pushbuttons
of chime / siren switch
5.8.1 Selecting the sound of the chime
The sound of the chime can be adjusted inside
the amplifier . A 2-tone sequence, a 4-tone se-
quence and a siren sound are available . The
siren sound is an emergency signal according
to DIN 33 404 / EN 457 and independent of the
siren function via the siren switching contact
described above .
1) Remove the housing cover of the amplifier .
2) A PCB with a jumper is provided in the rear
area, in parallel to the rear side of the unit,
near the inputs for CH1 and PAGING . Place
the jumper on the position corresponding to
the desired sound (fig . 11) .
CHIME
SELECTOR
CH1
⑪ Selection of the sound of chime
3) Close the housing with the cover .
5.9 Unit for evaluating a failure
If an amplifier output fails to operate or if a
fault occurs in one of the connected emergency
microphones, the relay FAULT (18) is switched .
Here, a unit for evaluating the fault, e . g . a signal
device, can be connected . The relay is equipped
with a float switch contact and has a rating of
24 V/ 500 mA .
5.10 Reserve amplifier
Any failure of the power amplifier output are
automatically recognized, and a relay will switch
over to an additional amplifier . This is only pos-
sible if the 100 / 70 V output of the PA-40120
is used .
1) Connect the input of the reserve amplifier to
2) Connect the 100 / 70 V output of the reserve
☞
chapter 5 .8 .1) . To
5.11 Emergency microphone unit
With this separately available accessory, emer-
gency announcements can be made at highest
priority . In addition, the emergency microphone
unit allows to record an announcement which
is automatically reproduced in an emergency
situation via the amplifier system (for details
☞
EMERGENCY IN (23) for the corresponding PA
zone . The cable length may be 1000 m as a max-
imum . For a cable length of more than 500 m,
the PA-4000FMP must be supplied with power
via a power supply unit of its own (
tions on the PA-4000FMP) .
5.12 Emergency priority relays
Emergency priority relays are designed to bridge
volume controls inserted between the amplifier
and the speakers so that emergency announce-
ments are transmitted everywhere at maximum
volume . For each PA zone (Z1 to Z4) of the
PA-40120, an output 24 V⎓ EMER . OUT (21)
is available for connecting emergency priority
relays . The rating of each output is 200 mA .
emergency microphone unit PA-4000FMP sig-
nals an emergency situation for this PA zone .
5.13 Power supply and
For continued operation of the amplifier in case
of mains failure, connect a 24 V emergency
power supply unit to the terminals 24 V⎓ (19)
[e . g . PA-24ESP from MONACOR] . Finally con-
2-TONE
4-TONE
nect the plug of the mains cable (16) to a socket
SIREN
(230 V/ 50 Hz) .
Notes:
1 . When a 24 V voltage is available, the amplifier is
PAGING
2 . During emergency power operation, the amplifier
of the unit
the plug-in screw terminals PRE OUT (22) of
the desired output .
amplifier to the contacts 100 V IN and GND
of the corresponding plug-in screw termi-
nals (20) .
PA-4000FMP
instructions on the PA-4000FMP) .
Connect a PA-4000FMP to the RJ45 jack
The switching voltage is released when an
emergency power supply
immediately in operation and the power LED (14)
and the LEDs PWR (3) of the four outputs light
up . The amplifier cannot be switched off with
the switch POWER (15) . The switch can only be
used to switch between mains power supply and
emergency power supply .
supplies less power than during mains operation .
☞
instruc-
13
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