RCF ES 3323-II - User manual

USER MANUAL
MANUALE D’USO
ES 3323-II -3-ZONE MIXER-AMPLIFIER
WITH TUNER AND
CD/USB – MP3 PLAYER
-MIXER-AMPLIFICATORE CON
SELEZIONE DI 3 ZONE E
SINTONIZZATORE RADIO /
LETTORE CD/USB – MP3

ENGLISH
SAFETY PRECAUTIONS
DESCRIPTION
FRONT PANEL
REAR PANEL
OPERATION MODES
SINGLE MODE OPERATION
PRIORITY
DUAL AMPLIFICATION ‘A’
DUAL AMPLIFICATION ‘B’
ADDITIONAL EXTERNAL AMPLIFIER CONNECTION
FURTHER INFORMATION
RCF BM 3001 / BM 3003 PAGING MICROPHONES
CD/USB – MP3/WMA PLAYER AND TUNER
LOUDSPEAKER CONNECTION
ZONE OUTPUT 100 V / 70 V (COMMON) VOLTAGE SELECTION
POWER SUPPLY VOLTAGE CHANGE
SPECIFICATIONS
EXAMPLES OF CONNECTIONS
ITALIANO
AVVERTENZE PER LA SICUREZZA
DESCRIZIONE
PANNELLO FRONTALE
PANNELLO POSTERIORE
MODALITÀ DI FUNZIONAMENTO
FUNZIONAMENTO IN MODALITÀ SINGOLA
PRIORITÀ
FUNZIONAMENTO CON DOPPIA AMPLIFICAZIONE (“A”)
FUNZIONAMENTO CON DOPPIA AMPLIFICAZIONE (“B”)
COLLEGAMENTO DELL’AMPLIFICATORE ESTERNO ADDIZIONALE
ULTERIORI INFORMAZIONI
BASI MICROFONICHE RCF BM 3001 E BM 3003
USO DEL LETTORE CD/USB – MP3/WMA E SINTONIZZATORE RADIO
COLLEGAMENTO DEI DIFFUSORI ACUSTICI
CAMBIO TENSIONE 100 V / 70 V (COMUNE) ALLE USCITE DI ZONE “ZONE OUTPUTS”
CAMBIO TENSIONE DI FUNZIONAMENTO DELL’APPARECCHIO
SPECIFICHE TECNICHE
ESEMPIO COLLEGAMENTI
4
6
7
9
14
14
15
18
19
19
21
22
23
31
32
33
34
36
38
40
41
43
48
48
49
52
53
53
55
56
57
65
66
67
68
70
TABLE OF CONTENTS
INDICE

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IMPORTANT
WARNING
SAFETY PRECAUTIONS
Before connecting and using this product, please read this instruction manual carefully and
keep it on hand for future reference. The manual is to be considered an integral part of
this product and must accompany it when it changes ownership as a reference for correct
installation and use as well as for the safety precautions.
RCF S.p.A. will not assume any responsibility for the incorrect installation and / or use of
this product.
WARNING: To prevent the risk of re or electric shock, never expose this product to rain
or humidity.
SAFETY PRECAUTIONS
1. All the precautions, in particular the safety ones, must be read with special attention, as
they provide important information.
2. POWER SUPPLY FROM MAINS
-The mains voltage is sufciently high to involve a risk of electrocution: never install or
connect this product when its power cable is plugged in.
-Before powering up, make sure that all the connections have been made correctly and
the voltage of your mains corresponds to the voltage shown on the rating plate on the
unit, if not, please contact your RCF dealer.
-The metallic parts of the unit are earthed by means of the power cable.
An apparatus with CLASS I construction shall be connected to a mains socket outlet
with a protective earthing connection.
-Protect the power cable from damage; make sure it is positioned in a way that it cannot
be stepped on or crushed by objects.
-To prevent the risk of electric shock, never open the product: there are no parts inside
that the user needs to access.
3. Make sure that no objects or liquids can get into this product, as this may cause a short
circuit.
This apparatus shall not be exposed to dripping or splashing. No objects lled with liquid,
such as vases, shall be placed on this apparatus. No naked sources (such as lighted candles)
should be placed on this apparatus.
4. Never attempt to carry out any operations, modications or repairs that are not expressly
described in this manual.
Contact your authorized service centre or qualied personnel should any of the following
occur:
-The product does not function (or functions in an anomalous way).
-The power supply cable has been damaged.
-Objects or liquids have got into the unit.
-The product has been subject to a heavy impact.
5. If this product is not used for a long period, disconnect the power cable.
6. If this product begins emitting any strange odours or smoke, switch it off immediately
and disconnect the power supply cable.
7. The terminals marked with the symbol are HAZARDOUS LIVE and their connection
is to be made by an INSTRUCTED PERSON or the use of ready-made cables is required.
8. Do not connect this product to any equipment or accessories not foreseen.
For suspended installation, only use the dedicated anchoring points and do not try to hang
this product by using elements that are unsuitable or not specic for this purpose.

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IMPORTANT NOTES
OPERATING PRECAUTIONS
Also check the suitability of the support surface to which the product is anchored (wall,
ceiling, structure, etc.), and the components used for attachment (screw anchors, screws,
brackets not supplied by RCF etc.), which must guarantee the security of the system /
installation over time, also considering, for example, the mechanical vibrations normally
generated by transducers.
To prevent the risk of falling equipment, do not stack multiple units of this product unless
this possibility is specied in the user manual.
9. RCF S.p.A. strongly recommends this product is only installed by professional qualied
installers (or specialised rms) who can ensure correct installation and certify it according
to the regulations in force.
The entire audio system must comply with the current standards and regulations regarding
electrical systems.
10. SUPPORTS AND TROLLEYS
The equipment should be only used on trolleys or supports, where necessary, that are
recommended by the manufacturer. The equipment / support / trolley assembly must be
moved with extreme caution. Sudden stops, excessive pushing force and uneven oors may
cause the assembly to overturn.
11. There are numerous mechanical and electrical factors to be considered when installing
a professional audio system (in addition to those which are strictly acoustic, such as sound
pressure, angles of coverage, frequency response, etc.).
12. HEARING LOSS
Exposure to high sound levels can cause permanent hearing loss. The acoustic pressure
level that leads to hearing loss is different from person to person and depends on the
duration of exposure.To prevent potentially dangerous exposure to high levels of acoustic
pressure, anyone who is exposed to these levels should use adequate protection devices.
When a transducer capable of producing high sound levels is being used, it is therefore
necessary to wear ear plugs or protective earphones.
See the technical specications in loudspeaker instruction manuals to know their maximum
sound pressure levels.
To prevent the occurrence of noise on microphone / line signal cables, use screened cables
only and avoid putting them close to:
-Equipment that produces high-intensity electromagnetic elds (for example, high power
transformers)
-Mains cables
-Loudspeaker lines.
-Do not obstruct the ventilation grilles of the unit. Situate this product far from any heat
sources and always ensure adequate air circulation around the ventilation grilles.
-Do not overload this product for a long time.
-Never force the control elements (keys, knobs, etc. ).
-Do not use solvents, alcohol, benzene or other volatile substances for cleaning the
external parts of this product.
CLASS 1
LASER PRODUCT

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DESCRIPTION
ES 3323-II is a mixer-amplifier with 4 mic-line inputs on removable connectors (the
first input also has an XLR socket), a CD/USB – MP3/WMA player and tuner, 2 aux
inputs (one on the rear panel with dual RCA connector, one on the front player with
1/8” jack) for additional external music sources.
The amplifier nominal power (320 W) is freely allocable to three 100 – 70 V separated
outputs (3-system zones, for loudspeakers having 100 – 70 V transformers).A common
direct output on 100 – 70 V constant voltage line and a low impedance (min. 4 Ω) 2 W
output for a monitor loudspeaker are available.
As (optional) system expansion, it is possible to link a second generic external
amplifier (delivering enough power for all loudspeakers, i.e. RCF UP 2321) to keep the
background music in the zones that are not paged.
When the external amplifier is foreseen, it is possible to send the music signal to either
the ES 3323 internal amplifier or the external one.
The 3 PAGING buttons on the front panel can be used to select zones to be paged by
either the channel 1 or 4; a GENERAL call button is available as well.When connecting
an additional external amplifier and with no priority event in progress, the 3 PAGING
buttons (if turned on) send the mix of channels 1 ÷ 4 to the respective zones.
The 3 MUSIC buttons turn the music on (or send the mix of all inputs, when no priority
event in progress and ES 3323 is operating as a single stand-alone amplifier) in the
respective zones.
The input1 has a signal detection circuit (‘VOX’) providing automatic priority operation.
All the inputs 1, 2, 3 and 4 can get the priority through an external command
(connected to the removable connector).The inputs 2 and 3 also have an RJ 45 socket
for quick connection (through CAT5 cable) of either a RCF BM 3001 or BM 3003
paging microphone or a line (daisy-chain) of BM 3003 (made of max. 12 microphones,
by using an additional power supply unit).
A USB port (on the front panel) allows connection of a USB flash drive containing MP3
/ WMA files.
It is also possible to match a ‘Bluetooth’ device (e.g. a mobile phone) to the player.
Aux outputs are available to send the internal / external music source signals to
additional amplifiers, mixers, phone systems (‘music on hold’ function), etc. .
The 4 mic.-line inputs have a common ‘presence’ control and separate high-pass filters
that are useful for improving speech intelligibility.
Both the internal music source (CD/USB – MP3/WMA player and tuner) and the rear
panel AUX INPUT have separate tone controls.
Front panel LED’s indicate the device state (ON, PROT), the priority activation (PRIOR)
and the signal level (SIG/PK).
RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH HAS BEEN
MADE TO GUARANTEE RELIABILITY AND HIGH PERFORMANCE.

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FRONT PANEL
1
10
9
11
12
8765432
1Volume controls for each universal input (1, 2, 3, 4)
Note: uNused chaNNels should always be turNed fully couNterclockwise (to 0).
2AUX INPUT 21 volume control
Note: turN fully couNterclockwise (to 0) if the aux iNput is Not used.
3AUX IN button (with LED)
It turns on (LED is lit) / off the AUX INPUT 21 to the internal amplier and the PRE OUT
23 and MUSIC OUT 26 audio outputs.
If activated, the CD/USB – MP3 player / tuner signal is not sent to the internal amplier
(the INTERNAL 4button LED turns off).
the aux iNput sigNal is always seNt to the Music oN hold
24
output (that is Not affected
by the aux iN buttoN).
4INTERNAL button (with LED)
It turns on (LED is lit) / off the CD/USB – MP3 / tuner to the internal amplier and the
PRE OUT 23 and MUSIC OUT 26 audio outputs.
If activated, the AUX INPUT signal is not sent to the internal amplier (the AUX IN button
LED turns off).
the cd/usb Mp3 player / tuNer sigNal is always seNt to the iNterNal prograM
22
output
(that is Not affected by the iNterNal
4
buttoN).
ittakes 10 secoNds (after pressiNg either the aux iN or iNterNal buttoN) to store the last
selectioN.
5CD/USB – MP3 player and tuner (read the relevant manual section).
6Internal amplier MASTER volume control
Note: all audio outputs via rca coNNectors (iNterNal prograM, Music oN hold, pre
out, Music out, pagiNg out) are Not affected by the Master voluMe coNtrol.
IMPORTANT: after pressing a button (AUX IN 3, INTERNAL 4, GENERAL
9, PAGING 10 , MUSIC 11 ), the implementation of the new conguration
will take about 10 seconds.

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7LEDs
ON green: the device is switched on
PROT red: overload protection
orange: thermal protection
PRIOR yellow: priority event in progress (VOX
function, command, SEQ. COMMAND.)
SIG/PK green:
the signal level is higher than – 15 dB
green + red:
the signal level is in the 0 ÷ +2 dB range
red: the signal level is equal or higher than +3 dB
0 d
b = sigNal level that allows to get the aMplifier MaxiMuM power.
the iNterNal ‘liMiter’ circuit helps to avoid the aMplifier overloadiNg, yet it is advisable to reduce
the Master voluMe (or asiNgle chaNNel voluMe where a‘too high’ sigNal is preseNt) wheN the
sig/pk led is coNtiNuously iNdicatiNg red.
8Main POWER switch (0 = off; I = on)
9GENERAL button
If activated, it precongures general paging (to all the 3 zones) with the ‘override’
function.
‘override’ MeaNs that audio sigNals are seNt without beiNg affected by the 3 zoNe atteNuators
12 .
10 PAGING buttons (one per each zone)
If activated, each button precongures its respective zone (for either the input 1 or 4
only) to be paged.
When ES 3323 is operating in the dual amplier mode and with no priority event in
progress, the 3 PAGING buttons send the mix of inputs 1, 2, 3, 4 to their respective zones.
11 MUSIC buttons (one per each zone)
If activated, each button sends either the music (internal player / AUX INPUT) or the mix
of all inputs (when no priority event is in progress and ES 3323 is operating in the single
amplier mode) to its respective zone.
12 Zone attenuators (one per each zone)
Each attenuator (5 positions + off) controls the output power in its respective zone
separate loudspeaker output (70 V / 100 V ZONE OUTPUTS 33 .
the 3 atteNuators do Not coNtrol the output power of the coMMoN direct outputs
34 .
priority eveNts with ‘override’ (e.g. aN iMportaNt aNNouNceMeNt that Needs to be seNt at its Max.
voluMe level, eveN iN zoNes where the output power is reduced by atteNuators) are always seNt with
their Max. (available) voluMe, regardless of the atteNuator settiNgs.

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13 2 RJ 45 sockets (channels 2 and 3) to connect either:
-A single BM 3001 paging microphone only
-Or a single BM 3003 (3-zone) paging microphone
-Or a daisy-chain made of max. 12 BM 3003, by using an additional power supply unit.
Note about the settiNg of the dip-switches 3 aNd 4 (see r): wheN coNNectiNg abM 3001, set the
‘liNe with phaNtoM’ Mode (both dip 3 aNd 4 oN); wheN coNNectiNg 1 or More bM 3003, set
the ‘liNe’ Mode (both dip 3 aNd 4 off).
14 Antenna input (the antenna is necessary when using the tuner).
15 4 balanced audio inputs (channels 1, 2, 3, 4) with sockets for removable connectors.
+ Hot audio input
– Cold audio input
GND ground
CMD command – priority access when connected to ground
1 OFF – CHIME OFF: the chime is disabled.
CHIME: (ON) the chime will
be played as soon as a priority
command is activated.
2 OFF – HI PASS
OFF: the audio hi-pass lter
is not inserted (at frequency
response).
HI PASS: (ON) the audio
hi-pass filter is inserted.
3 OFF – DIP 3 OFF: see the next table. DIP 3: (ON) see the next table.
4 OFF – DIP 4 OFF: see the next table. DIP 4: (ON) see the next table.
16 Each channel has 4 dip-switches:
REAR PANEL
35 34 33 32 27 30 31 16 15 13 14
171819202122232425262829

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Dip-switch 3 and 4 settings:
DIP 3 DIP 4 MODE INPUT SENSITIVITY USE (EXAMPLES)
OFF OFF LINE 0 dBu
BM 3003 paging microphones,
CD/MP3 players, tuners, message
players, phone systems
ON ON LINE with
PHANTOM – 20 dBu BM 3001 paging microphones
ON OFF MIC. – 50 dBu Dynamic microphones
OFF ON MIC. with
PHANTOM – 50 dBu Electret microphones
17 Channel no.1 XLR input:
18 PRESENCE CONTROL (f = 2.15 kHz) common for all the channels 1, 2, 3, 4.
19 AUX INPUT TREBLE and BASS controls.
20 AUX INPUT GAIN control.
21 AUX INPUT with dual RCA connector.
the two chaNNels of the stereo source coNNected to the aux iNput are suMMed iNterNally
(to get aMoNo sigNal).
22 INTERNAL PROGRAM stereo audio output with dual RCA connector (L: left channel,
R: right channel) that sends the direct CD/USB – MP3 player and tuner signal.
23 PRE OUT audio output (with RCA connector) that sends the same signal routed to
the internal amplier (signal that can be either a single source with priority or the mix of
all the channels 1, 2, 3, 4 and the selected music source).
the output pre out May be useful to coNNect additioNal exterNal aMplifiers.
24 MUSIC ON HOLD audio output (with RCA connector) that sends a mono signal of the
source connected to the AUX INPUT.
either the Music oN hold output (if aN exterNal Music source has beeN coNNected to the aux
iNput) or the iNterNal prograM output caN be used for the coNNectioN to atelephoNe
systeM (iN order to have the ‘Music oN hold’ fuNctioN).
Balanced connection
+ hot
– cold
GND ground
Unbalanced connection

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25 PAGING OUT audio output (with RCA connector)
It sends either the mix of the channels 1, 2, 3, 4 (with no priority events in progress) or
the only input (1 ÷ 4) with priority or the chime (triggered by any priority command, if
enabled) or the tone set for the SEQUENTIAL COMMAND 29 .
Use this output to connect the additional amplier (if this is assigned for paging and/or
the mix of inputs 1÷4).
The MASTER 6volume and the remote one (if connected to REMOTE CONTROL
MASTER 31 ) do not affect this output.
iNput 1 ÷ 4 sigNal levels depeNd oN the respective chaNNel voluMes
1
, the chiMe level depeNds oN
the chiMe level
28
coNtrol oN the rear paNel; the sireN level is fixed.
26 MUSIC OUT audio output (with RCA connector)
It sends the audio signal of the selected music source (internal CD/USB – MP3 player and
tuner, AUX INPUT 21 , off).
The level depends on both the internal player/ tuner (or the AUX 2volume and its
respective GAIN 20 control on the rear panel when selecting the AUX INPUT) and the
remote control potentiometer (if connected to REMOTE CONTROL BGM 31 ).
Use this output to connect the additional amplier (if this is assigned for the music).
27 12 dip-switches PRESET (system / priority options):
1.
IN 1 –
PAGING A B C TO
IN 4
IN 1: the 3 PAGING zone selection buttons (on the
front panel) are assigned to the channel 1.
PAGING A B C TO IN 4: the 3 PAGING zone
selection buttons (on the front panel) are
assigned to the channel 4.
2. IN 4 NORMAL –
IN 4 OVERRIDE
IN 4 NORMAL: the channel 4 volume is affected
by the attenuators 12 during its priority.
IN 4 OVERRIDE: the channel 4 volume is
not affected by the attenuators 12 during
its priority.
3.
INTERLOCKED –
GRAD. PRIOR.
1/2-3/4
INTERLOCKED: interlocked priority mode GRADUATED PRIORITY 1/2–3/4: graduated
priority mode
4. OFF –
VOX ON INPUT 1 OFF: the channel 1 VOX function is off.
VOX ON INPUT 1: the channel 1 VOX
function is on (automatic priority when a
signal is detected on the audio INPUT 1).
5. OFF –
SMART INPUT 2
OFF: the channel 2 priority is held only if the
relevant command is still present (‘push’ mode).
Note: set to oFF iF 1 or more Bm 3003 pagiNg
microphoNes are coNNected to the iNput 2.
SMART INPUT 2: the channel 2 priority is
switched on / off by every impulse of the
relevant command (‘toggle’ mode).
6. OFF –
SMART INPUT 3
OFF: the channel 3 priority is held only if the
relevant command is still present (‘push’ mode).
Note: set to oFF iF 1 or more Bm 3003 pagiNg
microphoNes are coNNected to the iNput 3.
SMART INPUT 3: the channel 3 priority is
switched on / off by every impulse of the
relevant command (‘toggle’ mode).

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7. SHORT –
CHIME LONG SHORT: short chime. CHIME LONG: long chime.
8.
CHIME –
SIREN ON SEQ.
CMD
CHIME: the chime (selected by the
dip-switch no.7) is continuously
played when the ‘SEQUENTIAL
COMMAND’ is triggered.
SIREN ON SEQ.CMD: an alarm
tone is continuously played when
the ‘SEQUENTIAL COMMAND’ is
triggered.
9. INT. AMP. –
EXT. AMP. PAGING
See the next table (dip-switches 9
and 10) INT. AMP.: dip-switch 9 OFF
See the next table (dip-switches 9
and 10) EXT. AMP. PAGING: dip-
switch 9 ON
10. INT. AMP. –
EXT. AMP. BGM
See the next table (dip-switches 9
and 10) INT. AMP.: dip-switch 10
OFF
See the next table (dip-switches 9
and 10) EXT. AMP. BGM: dip-switch
10 ON
11. DISABLE –
ENAB. INT. PAGING
DISABLE: (OFF) it mutes the input
1÷4 signals, the chime and the
siren to the internal amplier.
ENAB. INT. PAGING: (ON) it enables
the input 1÷4 signals, the chime
and the siren to the internal
amplier.
12. DISABLE –
ENAB. INT. BGM
DISABLE: (OFF) it mutes the
selected music source to the
internal amplier.
ENAB. INT. BGM: (ON) it enables the
selected music source to the internal
amplier.
DIP 9 DIP 10 OPERATION MODE
OFF OFF ES 3323 operates as a single amplier for both paging and music.
ON OFF Dual amplication: ES 3323 for music, the additional external amplier for paging.
OFF ON Dual amplication: ES 3323 for paging, the additional external amplier for music.
ON ON ES 3323 operates as a single amplier for both paging and music.
DIP-SWITCH 11 and 12 SETTING DIP 11 DIP 12
No additional external amplifier (ES 3323 operates as a single amplifier). ON ON
Dual amplification: ES 3323 for music, the additional external amplifier for
paging.
OFF ON
Dual amplification: ES 3323 for paging, the additional external amplifier
for music.
ON OFF
aNy selectioN (through dip-switches) is oNly accepted aNd gets actual at the eNd of apriority eveNt
(for iNstaNce, aMic. call) or wheN switchiNg the device oN.

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28 CHIME LEVEL (a trimmer adjustable by using a small screwdriver).
29 SEQUENTIAL COMMAND with removable connector (activated when the 2 pins
are short-circuited) to send continuously (with max. volume) either the chime (selected
through the dip-switch 7 PRESET 27 ) or an alarm tone (selected through the dip-switch
8 PRESET 27 ).
30 Internal relay contacts (3 pole removable connector)
The internal relays switches when a priority command is present.
31 REMOTE CONTROL terminal
SEL: music source selection (when linked to ground)
GND: common ground
BGM: music volume
MASTER: master volume
1 2 3
SEL GND
MASTER
GND
10 kΩ ÷
100 kΩ
BGM
GND
10 kΩ ÷
100 kΩ
1 – normally open
2 – common
3 – normally closed
Max. voltage: 24 V; max. current: 0.5 A.
REMOTE VOLUME CONTROL
The MASTER and BGM remote volume controls are independent. Insert a potentiometer
between the respective contact and the ground.
The potentiometer nominal value affects the
operating range (referring to the front panel
settings): the higher the value, the wider the
adjustable range.
Its value can be typically from 10 kΩ to 100 kΩ,
the optimal action is obtained with an inverse
logarithmic curve potentiometer, but it is also
acceptable a linear response one.
The music remote control is relative to the activated music source (either internal or
external).
The maximum range that can be obtained is 40 dB (relative to the signal adjusted by the
main settings).
MUSIC SOURCE REMOTE SELECTION
It is obtained by connecting a push-button between the SEL e GND contacts.
The selection is cyclic: CD/USB – MP3 player and tuner, AUX INPUT 21 , no music.
importaNt: iFaremote coNtrol poteNtiometer is Not ForeseeN, it is Necessary to short-
circuit the respective coNtact to grouNd (through awire), otherwise the master volume
aNd / or the Bgm volume are set to zero (muted).

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32 EXT AMP INPUT for a 100 – 70 V constant voltage line coming from the additional
external amplier output.
33 Separate 100 – 70 V constant voltage ZONE OUTPUTS (one per zone) to connect
loudspeakers. See the section ‘Loudspeaker connection’.
34 DIRECT OUTPUTS (not affected by zone selection, max. 320 W) to loudspeakers
(100 / 70 V constant voltage line).
The low impedance output (min. 4 Ω) allows to connect a monitor loudspeaker (max.
power: 2 W).
35 Mains connector with fuse
Before connecting the power cable, verify that the apparatus voltage (230 or 115 V ac)
corresponds to the available mains supply.
Note: the fuse type is Marked oN the rear paNel (below the MaiNs coNNector).
ES 3323 CAN OPERATE IN 3 DIFFERENT MODES:
1. SINGLE: as stand-alone amplier for both paging and music.
The music is not held in zones not paged during a priority event in progress.
2. DUAL AMPLIFICATION ‘A’: ES 3323 is linked to an additional external amplier (i.e.
RCF UP 2321) for paging only (while the internal one amplies the music only).
3. DUAL AMPLIFICATION ‘B’: ES 3323 is linked to an additional external amplier (i.e.
RCF UP 2321) for music only (while the internal one is for paging only).
‘vox’ is aN iNterNal circuit that autoMatically activates the chaNNel 1 priority wheN asigNal is
detected oN the audio iNput 1.
OPERATION WITH NO PRIORITY EVENT IN PROGRESS
(after turning the amplier on or when a priority command ends).
If no priority command is present (including VOX and SEQUENTIAL COMMAND 29 ), all
the channels 1, 2, 3, 4 and the music source are mixed together.
The music source can be:
-The internal CD/USB – MP3 player and tuner.
-The AUX INPUT signal.
-Disabled.
The mixed signal is only sent to zones selected through the 3 MUSIC [11] buttons on the
front panel.
The master volume is adjusted by the MASTER 6control.
The volume of each input 1 ÷ 4 is adjusted separately by the controls 1, 2, 3, 4 1.
The music volume depends on either the control of the CD/USB – MP3 player and tuner (if
selected) or the AUX IN volume control 2on the front panel.
The AUX INPUT 21 volume also depends on the rear panel GAIN 20 control.
the Music source (iNterNal or exterNal) caN be activated / Muted through the froNt paNel buttoNs
34.
OPERATION MODES
SINGLE MODE OPERATION

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PROCEED AS FOLLOWS:
a. Ensure the dip-switches 9 and 10 PRESET 29 are both set to OFF (or both set to ON).
b. Ensure the dip-switches 11 and 12 PRESET 29 are both set to ON.
c. Adjust (momentarily) the MASTER 6control at (circa) half volume.
d. Choose a music source (internal or AUX IN) through the front panel buttons 34;
e. Select zones where to send the music through the 3 MUSIC 11 buttons.
f. Adjust the music volume (through either the CD/USB – MP3 player and tuner volume or
the AUX IN 2control).
g. If loudspeakers are connected to the ZONE OUTPUTS 33 , temporarily set the 3
attenuators 12 to MAX. (not necessary when using DIRECT OUTPUTS 34 ).
h. Adjust the MASTER volume to get the desired level.
i. If necessary, attenuate the output level of each zone by using its respective attenuator
12 .
j. Adjust the channel 1 ÷ 4 volumes 1if these inputs are connected.
Note: here above it is assuMed that reMote coNtrol poteNtioMeters are Not coNNected or, if
coNNected, these are teMporarily set to their Max. level.
THE PRIORITY COMMAND IS GOT:
-Through channels 1 ÷ 4, by connecting (in the removable connectors 15 ) the respective
contact CMD to ground (GND); the priority remains activated if the link is stable (but the
input 2 and 3 SMART function).
-By the channel 1 through its VOX function (if enabled).
-Through BM 3003 / BM3001 paging microphones connected to the ‘RJ’ port 13 of
the channels 2 and 3, considering that removable connectors (for priority commands
and audio signals) cannot be used if lines are engaged (in order to avoid malfunction).
-By the SEQUENTIAL COMMAND 29 .
If any priority command is in progress (includingVOX),only the channel with priority (among
inputs 1 ÷ 4, BM 3003 / BM 3001 paging microphones, SEQUENTIAL COMMAND) is sent
to the DIRECT OUTPUTS 34 for loudspeakers.
The selected music source and the other inputs are muted (even on ZONE OUTPUTS 33 ).
When a priority event is in progress, the ‘PRIOR’ LED 7gets lit and the audio signal sent
to the PRE OUT 23 only includes the channel with priority.
PRIORITY

16
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DIP 3 MODE
INTERLOCKED INTERLOCKED
Only the first priority command of
channels 1 ÷ 4 is accepted (also
channel 1 VOX, if enabled through the
dip-switch 4 PRESET 27 ). Any other
priority command will not be accepted
until the previous one is removed.
Note: the oNly eveNt that caN always
be a c t i vate d late r (aNd overrides a
previous priority) is t he seQueNtial
coMMaNd 29 .
GRAD. PRIOR.
1/2-3/4
GRADUATED
PRIORITY
A priority command having a higher level
can override the previous one.
The priority levels are:
1. (highest) SEQUENTIAL COMMAND
2. channel 1 (including VOX)
3. channels 2 and 3 (interlocked each other)
4. channel 4
THE PRIORITY MODE (INCLUDING THE VOX FUNCTION) IS SET BY THE DIP-
SWITCH 3 PRESET 27 :
As soon as a priority event ends, the initial state will be restored (the channels 1, 2, 3, 4
and the selected music source will be mixed together, unless another priority event is in
progress).
About selective paging to A, B, C zones (separated ZONE OUTPUTS 33 ), it is necessary
to consider:
-The state of front panel PAGING 10 and GENERAL 9buttons.
-The setting of the dip-switches 1 and 2 PRESET 27 on the rear panel.
-The device requiring the priority (for instance, BM 3001 paging microphones can make
general calls only, BM 3003 can make selective calls).
The 3 zone attenuators 12 can adjust the level on the separate 70V / 100V ZONE OUTPUTS
33 , but the DIRECT OUTPUTS 34 (and the additional external amplier, if present) are
not affected by these controls.
The audio signal of an event with priority and ‘override’ is always sent to the separate
outputs with its. max. set volume, without being controlled by the zone attenuators.
The audio signal level of an event with normal priority is also adjusted by the zone
attenuators.
‘override’ MeaNs that audio sigNals are seNt without beiNg affected by the 3 zoNe
atteNuators
12 .

17
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THE 3-ZONE SELECTIVE PAGING IS CONTROLLED ACCORDING TO THE
FOLLOWING RULES:
1. If the GENERAL button 9is on, when the priority is got by one of the channels 1
÷ 4 or a BM3001 paging microphone, paging will be general (‘all call’) in the OVERRIDE
mode (regardless of any other setting).
2. When the priority is got by the channels 2 – 3 (or by a BM 3001 paging microphones
connected to either the input 2 or 3) or the SEQUENTIAL COMMAND 29 , paging (/ the
alarm tone) will be general (‘all call’) in the OVERRIDE mode (regardless of any other
setting).
3. From BM 3003 paging microphones (connected to the inputs 2 and 3), users can
always select the zones to be paged (OVERRIDE mode).
4. When the priority is got by the channel 1, paging will be always in the OVERRIDE
mode; the zone selection depends on both the dip-switch 1 of the PRESET group 27 and
the front panel PAGING buttons 10 :
-If the DIP 1 is set to ‘PAGING A B C TO IN 4’, paging is always general (regardless of the
PAGING button selection).
-If the DIP 1 is set to ‘IN 1’, paging is selective to the zones chosen through the PAGING
buttons (note: if no zone is selected, paging is only sent to the DIRECT OUTPUTS 34 ).
5. When the priority is got by the channel 4, paging can be either normal or in the
OVERRIDE mode, according to the dip-switch 2 setting of the PRESET group 27 (and
also the front panel GENERAL button 9). The zone selection depends on both the dip-
switch 1 (PRESET group 27 ) and the front panel PAGING buttons 10 :
-If the DIP 1 is set to ‘IN 1’, paging is always general (regardless of the PAGING button
selection).
-If the DIP 1 is set to ‘PAGING A B C TO IN 4’, paging is selective to the zones chosen
through the PAGING buttons (note: if no zone is selected, paging is only sent to the
DIRECT OUTPUTS 34 ).

18
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DUAL AMPLIFICATION ‘A’
TABLE OF CORRELATION BETWEEN PRIORITY COMMANDS AND ACTIVATED
ZONES:
In this mode, ES 3323 is linked to an additional external amplifier (i.e. RCF UP 2321)
for paging only (while the internal one amplifies the music only).
ES 3323: MUSIC EXTERNAL AMPLIFIER: PAGING
See the manual section ‘Additional external amplifier connection’, paragraph ‘A’.
IF NO PRIORITY EVENT IS IN PROGRESS:
-The music (internal or external player) is sent to all the zones having the MUSIC button
11 turned on (or both the MUSIC 11 and PAGING 10 buttons turned on).
-The mix of all the channels 1 ÷ 4 (through the external amplier) is sent to all the zones
having (only) the PAGING button 11 turned on.
When a priority event is in progress (i.e. an announcement), the signal having the
priority is sent to the 3 zones by following the rules listed in the previous manual
section ‘Single mode operation’, but the OVERRIDE function (as the level of
the signal having the priority depends on the external amplier volume
setting).
The music is held (if activated) in the zone(s) not affected by the event
with priority.
duriNg apriority eveNt, oNly the sigNal with priority (aNd Not the Mix of all the chaNNels 1 ÷
4) is seNt to the zoNe(s) haviNg the (oNly) pagiNg buttoN
11
turNed oN.
PRIORITY
COMMAND
Dip-switch 1
(Paging buttons
to IN 1 / IN 4)
Dip-switch 2
(IN 4 override)
General
button Activated zones mode (normal/override)
BM 3
003 paging mic.
Selected zones by
BM 3003 paging mic. override
INPUT 1
IN 4 all
override
IN 1
ON all
OFF Selected zones through
Paging buttons P
INPUT 2,
INPUT 3,
BM 3001
paging mic
.
all override
INPUT 4
IN 4
ON all override
ON
OFF Selected zones through
Paging buttons P
OFF normal
IN 1
ON
all override ON OFF
OFF normal
SEQUENTIAL
COMMAND all override

19
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In this mode, ES 3323 is linked to an additional external amplier (i.e. RCF UP 2321) for
music only (while the internal one is for paging only).
ES 3323: PAGING EXTERNAL AMPLIFIER: MUSIC
See the manual section ‘Additional external amplier connection’, paragraph ‘B’.
IF NO PRIORITY EVENT IS IN PROGRESS:
-The music (internal or external player, ES 3323 sends the signal to the external amplier)
is present in all the zones having the respective MUSIC button 11 turned on (or both
MUSIC 11 and PAGING [10] buttons turned on).
-The mix of all the channels 1 ÷ 4 (through the ES 3323 internal amplier) is sent to all
the zones having (only) the PAGING button 11 turned on.
When a priority event is in progress (i.e. an announcement), the signal having the priority
is sent to the 3 zones by following the rules listed in the previous manual section ‘Single
mode operation’, including the OVERRIDE mode.
The music is held (if activated) in the zone(s) not affected by the event with
priority.
The attenuators 12 control the paging levels only (if the OVERRIDE function is not
activated).
ES 3323 has 2 audio outputs (PAGING OUT 25 e MUSIC OUT 26 )and a (100 V / 70 V)
constant voltage input for the external amplier connection.
A) ES 3323: MUSIC EXTERNAL AMPLIFIER: PAGING
NECESSARY LINKS:
-Connect PAGING OUT 25 to the external amplier audio input.
-Connect the external amplier 100 V (/ 70 V) constant voltage output (for loudspeakers)
to EXT AMP INPUT 32 ;
DIP-SWITCH SETTINGS (PRESET GROUP 27 ):
-DIP 9 ON
-DIP 10 OFF
-DIP 11 OFF (to avoid that channel 1 ÷ 4 signals are mixed with the music)
-DIP 12 ON (music is sent to the internal amplier).
ADDITIONAL EXTERNAL AMPLIFIER
CONNECTION
DUAL AMPLIFICATION ‘B’

20
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B) ES 3323: PAGING EXTERNAL AMPLIFIER: MUSIC
NECESSARY LINKS:
-Connect MUSIC OUT 26 to the external amplier audio input.
-Connect the external amplier 100 V (/ 70 V) constant voltage output (for loudspeakers)
to EXT AMP INPUT 32 ;
DIP-SWITCH SETTINGS (PRESET GROUP 27 ):
-DIP 9 OFF
-DIP 10 ON
-DIP 11 ON (it enables the channel 1÷4 signals to the internal amplier)
-DIP 12 OFF (music is muted to the internal amplier).
EXAMPLE OF CONNECTION TO AN RCF UP 2321:
-Connect MUSIC OUT 25 to UP 2321 AUX INPUT
-Connect the UP 2321 (100 V / 70 V) constant voltage output to EXT AMP INPUT 32 .
EXAMPLE OF CONNECTION TO AN RCF UP 2321:
-Connect PAGING OUT 25 to UP 2321 AUX INPUT
-Connect the UP 2321 (100 V / 70 V) constant voltage output to EXT AMP INPUT 32 .