Plena Mixer Amplifier | Installation and User Instructions | Important safeguards
en | 3
outlet, contact your electrician to replace your
obsolete outlet. Do not defeat the safety purpose of
the grounding-type lug.
perform safety checks to determine that the unit is in
proper operating condition.
21 Lightning - For added protection of the units during
a lightning storm, or when it is left unattended and
unused for long periods of time, unplug it from the
wall outlet and disconnect the cable system. This will
prevent damage to the unit due to lightning and
power-line surges.
22 Disconnection - To completely disconnect this unit
from the AC mains, disconnect the power supply
cord plug from the AC receptacle. The mains plug of
the power supply cord shall remain readily operable
to be able to disconnect power from the unit.
23 Before installing or operating this product, always
read the Safety Instructions, which are available as a
separate document (9922 141 7014x). These
instructions are supplied together with all equipment
that can be connected to the mains.
14 Power-Cord Protection - Power supply cords should
be routed so that they are not likely to be walked on
or pinched by items placed upon or against them,
paying particular attention to cords and plugs,
convenience receptacles, and the point where they
exit from the appliance.
15 Overloading - Do not overload outlets and extension
cords as this can result in a risk of fire or electrical
shock.
16 Object and Liquid Entry - Never push objects of any
kind into this unit through openings as they may
touch dangerous voltage points or short-out parts
that could result in a fire or electric shock. Never
spill liquid of any kind on the unit.
17 Servicing - Do not attempt to service this unit
yourself as opening or removing covers may expose
to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
18 Damage Requiring Service - Unplug the unit from
the outlet and refer servicing to qualified service
personnel under the following conditions:
•
•
When the power-supply cord or plug is damaged.
If liquid has been spilled, or objects have fallen
into the unit.
•
•
If the unit has been exposed to rain or water.
If the unit does not operate normally by following
the instructions for use. Adjust only those
controls that are covered by the instructions for
use, as an improper adjustment of other controls
may result in damage and will often require
extensive work by a qualified technician to
restore the units to their normal operation.
If the unit has been dropped or the unit has been
damaged.
•
•
When the unit exhibits a distinct change in
performance; this indicates a need for service.
19 Replacement Parts - When replacement parts are
required be sure the service technician has used
replacement parts specified by the manufacturer or
parts which have the same characteristics as the
original part. Unauthorised substitutions may result
in fire, electric shock or other hazards.
20 Safety Check - Upon completion of any service or
repairs to the units, ask the service technician to
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Plena Mixer Amplifier | Installation and User Instructions | Important safeguards
en | 4
American Users
Canadian Users
Note
Note
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC rules.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation.
This equipment generates, uses, and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference to
radio communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning
the equipment OFF and ON, the user is
encouraged to try to correct the interference by
one or more of the following measures:
This Class B digital device complies with
Canadian ICES-003.
Cet appareil numérique de classe B est
conforme à la norme NMB-003 du Canada.
Thank you for choosing a Bosch Security Systems
product!
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the
equipment and the receiver.
•
•
Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced
radio/TV technician for help.
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Plena Mixer Amplifier | Installation and User Instructions | Table of contents
en | 5
Important safeguards...................................................................................................................................................2
Table of contents...........................................................................................................................................................5
1. Introduction ....................................................................................................................................................................7
1.1 Purpose .....................................................................................................................................................................................7
1.2 Digital document .....................................................................................................................................................................7
1.3 Intended audience ..................................................................................................................................................................7
1.4 Related documentation ..........................................................................................................................................................7
1.5 Alerts ..........................................................................................................................................................................................7
1.6 Icons ...........................................................................................................................................................................................7
1.6.1 Note icons ...........................................................................................................................................................................7
1.6.2 Caution, Warning, and Danger icons ...........................................................................................................................7
1.7 Conversion tables ...................................................................................................................................................................8
2. Description .....................................................................................................................................................................9
2.1 The Plena product range .......................................................................................................................................................9
2.2 Contents of box .......................................................................................................................................................................9
2.3 The Plena Mixer Amplifier ......................................................................................................................................................9
2.4 Controls, connectors and indicators ............................................................................................................................... 11
2.4.1 Front panel ....................................................................................................................................................................... 11
2.4.2 Plena PLE-WP2Z3S wall panel .................................................................................................................................. 11
2.4.3 Rear panel ........................................................................................................................................................................ 12
3. Installation ................................................................................................................................................................... 15
3.1 Unpack unit ............................................................................................................................................................................ 15
3.2 Install unit in rack (optional) ............................................................................................................................................... 15
3.3 Check settings/connections .............................................................................................................................................. 15
3.4 Connect unit to mains ......................................................................................................................................................... 15
4. Connections and settings ........................................................................................................................................ 17
4.1 Connecting inputs ................................................................................................................................................................ 17
4.1.1 Priority microphone (input 1) ....................................................................................................................................... 17
4.1.2 Secondary microphone (input 2) ................................................................................................................................ 18
4.1.4 Emergency inputs ........................................................................................................................................................... 19
4.1.5 Music source inputs ....................................................................................................................................................... 21
4.2 Connecting outputs ............................................................................................................................................................. 22
4.2.1 Main output ...................................................................................................................................................................... 22
4.2.2 Call only ............................................................................................................................................................................ 22
4.2.3 Music only ........................................................................................................................................................................ 22
4.2.4 Connecting speakers ..................................................................................................................................................... 23
4.3 Unit settings .......................................................................................................................................................................... 24
4.3.1 Rear panel settings ........................................................................................................................................................ 24
4.3.2 Pin settings and labelling .............................................................................................................................................. 26
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Plena Mixer Amplifier | Installation and User Instructions | Table of contents
en | 6
5. Operation ..................................................................................................................................................................... 27
5.1 Switch on and off ................................................................................................................................................................. 27
5.1.1 Switch on ......................................................................................................................................................................... 27
5.1.2 Switch off ......................................................................................................................................................................... 27
5.2 Microphone/line controls .................................................................................................................................................... 28
5.3 Music controls ....................................................................................................................................................................... 28
5.3.1 Source selection ............................................................................................................................................................. 28
5.3.2 Volume control ................................................................................................................................................................ 28
5.4 Tone control .......................................................................................................................................................................... 28
5.5 Output controls ..................................................................................................................................................................... 28
5.5.1 Master volume control ................................................................................................................................................... 28
6. Technical data ............................................................................................................................................................. 29
6.1 Electrical ................................................................................................................................................................................. 29
6.1.1 Mains power supply ....................................................................................................................................................... 29
6.1.2 Power consumption ....................................................................................................................................................... 29
6.1.3 Performance .................................................................................................................................................................... 29
6.1.4 RJ-45 input 1 x ................................................................................................................................................................ 29
6.1.5 Mic/line input 4 x ............................................................................................................................................................. 29
6.1.6 Music inputs 3x ............................................................................................................................................................... 30
6.1.7 Emergency / telephone 1 x .......................................................................................................................................... 30
6.1.8 Master/music output 1 x ............................................................................................................................................... 30
6.1.9 Loudspeaker outputs 70 V ........................................................................................................................................... 30
6.1.10 Loudspeaker output 4 Ohm* ....................................................................................................................................... 30
6.2 Mechanical ............................................................................................................................................................................. 30
6.3 Environmental ........................................................................................................................................................................ 30
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Plena Mixer Amplifier | Installation and User Instructions | Introduction
en | 7
1
Introduction
1.6
Icons
1.6.1 Note icons
1.1
Purpose
The icons used in combination with Notes provide extra
information about the Note. See the following
examples:
The purpose of these Installation and User Instructions
is to provide information required for installing,
configuring and operating a Plena Mixer Amplifier.
1.2
Digital document
Note
General icon for notes.
These Installation and User Instructions are also
available as a digital document in the Adobe Portable
Document Format (PDF).
Note
1.3
Intended audience
Consult the indicated source of information.
These Installation and User Instructions are intended
for installers and users of a Plena system.
1.6.2 Caution, Warning, and Danger
icons
1.4
Related documentation
Safety Instructions (9922 141 1036x).
The icons used in combination with Caution, Warnings,
and Dangers indicate the type of hazard present. See the
following examples:
1.5
Alerts
Four types of alerts are used in this manual. The alert
type is closely related to the effect that may be caused if
it is not observed. These alerts - from least severe effect
to most severe effect - are:
Caution, Warning, Danger
General icon for Cautions, Warnings and
Dangers.
•
Note
Alert containing additional information. Usually, not
observing a note alert does not result in damage to
the equipment or personal injuries.
Caution
The equipment can be damaged if the alert is not
observed.
•
•
Caution, Warning, Danger
Icon for risk of electric shock.
Warning
Persons can be (severely) injured, or the equipment
can be seriously damaged, if the alert is not
observed.
Caution, Warning, Danger
Icon for risk of electrostatic discharge.
•
Danger
Not observing the alert can result in death.
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Plena Mixer Amplifier | Installation and User Instructions | Introduction
en | 8
1.7
Conversion tables
In this manual, SI units are used to express lengths,
masses, temperatures etc. These can be converted to
non-metric units using the following information.
table 1.1: Conversion of units of length
1 in =
1 in =
1 ft =
1 mi =
25.4 mm
2.54 cm
0.3048 m
1.609 km
1 mm =
1 cm =
1 m =
0.03937 in
0.3937 in
3.281 ft
1 km =
0.622 mi
table 1.2: Conversion of units of mass
1 lb = 0.4536 kg 1 kg =
2,2046 lb
0.0145 psi
table 1.3: Conversion of units of pressure
1 psi = 68.95 hPa 1 hPa =
Note
1 hPa = 1 mbar.
table 1.4: Conversion of units of temperature
° F = 9 . ( ° C + 32)
° F = 5
° C = 5 . ( ° F 32)
° C = 9
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Plena Mixer Amplifier | Installation and User Instructions | Description
en | 9
2
Description
The volume of each microphone/line signal can be
individually adjusted to obtain the required mix; the
mixed output is controlled via the master volume
control and separate high/low tone controls.
The unit is easy to use, and provides a crisp call or clear
music. The amplifier also has enhanced features such as
ducking level control, priority, labelling, and setting
indicators.
2.1
The Plena product range
The Plena Mixer Amplifier is part of the Plena product
range. Plena provides public address solutions for places
where people gather to work, worship, trade, or relax. It
is a family of system elements that are combined to
create public address systems tailored for virtually any
application
All Microphone/line inputs can be switched between
microphone level and line level sensitivity. The inputs
are balanced but can also be used unbalanced. Phantom
power can be selected via a DIP switch to provide
power to condenser microphones. Input channels 1
and 2 can take priority over all other microphone and
music inputs:
The Plena product range includes:
•
•
•
•
•
•
•
•
•
•
•
•
mixers
preamplifiers
power amplifiers
a music source unit
a digital message manager
a feedback suppressor
call stations
an All-in-One system
a voice alarm system
a timer
•
Input 1 can be activated by contact closure on a PTT
(push to talk). A chime can be configured to precede
an announcement.
•
Input 2 can be switched automatically if a signal is
available at the input, for example, if someone
speaks into the microphone (VOX activation).
a charger
a loop amplifier
A telephone/70 V emergency input with VOX
activation is also provided for easy integration with
another PA system or a telephone paging system. It has
its own volume control and overrides all other inputs,
including the call station and inputs 1 and 2.
The various elements are designed to complement each
other thanks to matched acoustical, electrical and
mechanical specifications.
The unit also has a line output to add amplifiers for
larger systems that require more output power. This
output can be switched to music only, for example, so
that music on hold can be provided for the telephone
system.
•
PLE-1MA030-US, PLE-1MA060-US, or
PLE-1MA120
•
Labels and colored pins for indicating favorite
settings
•
•
•
Power cord
Plena Bonus CD
Mounting brackets (LBC 1901/00)
Users can create custom labels for inputs and music
sources. These labels can be attached to the special
holders at the front of the mixer amplifier. Colored pins
can also be inserted at various positions around the
volume and tone dial controls to indicate favorite
settings for a particular application.
2.3
The Plena Mixer Amplifier
The Plena Mixer Amplifier is a high performance,
professional public address unit for mixing up to four
separate microphone/line signals, and any one of three
separate music signals. For a schematic overview of the
Plena Mixer Amplifier, see figure 2.1 on the next page.
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Plena Mixer Amplifier | Installation and User Instructions | Description
en | 10
An LED meter monitors the master output before the
zone selection. This signal is also present on the
headphone connector below the output meter. For
total reliability and ease of use, a limiter is integrated
into the output stage to restrict output if the user
applies too much signal.
70V
0
ducking
DIP dri ve
DIP
PTT
0
Call only 70V
70V
70V
LINE/MIC
Amplifier
0
0
8 Ohm
0
Click
suppressi on
8 Ohm
LINE/MIC
Music/Line
Bal. output
LINE/MIC
LINE/MIC
1(disc)
2(radio)
3(aux)
LINE
201
115V,230V
figure 2.1: Schematic overview of the Plena Mixer Amplifier
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Plena Mixer Amplifier | Installation and User Instructions | Description
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2.4
Controls, connectors and
indicators
Note
Users can create custom labels for the
2.4.1 Front panel
the mixer amplifier at position numbers 2 and 3
(see figure 2.2). Colored pins can also be
inserted at various positions around the dial
controls to indicate the favorite settings for a
particular application. For more information on
inserting and removing pins, see section 4.3.2.
See figure 2.2 for an overview of the controls and
indicators.
1 Power button.
2 Label holder for user-defined description of
microphone/line inputs - custom labels can be
created by user.
3 Label holder for user-defined description of music
sources - custom labels can be created by user.
4 Master high tone control.
5 Master volume control - controls all inputs except
emergency and call station.
6 Output level meter (-18 db, 0 db)
7 Input level control:
2.4.2 Plena PLE-WP2Z3S wall panel
The optional Plena PLE-WP2Z3S wall panel can be
used to remotely control the unit from a maximum of
four remote locations. The appearance of the wall panel
is matched to the Bosch loudspeaker volume controls.
•
•
•
•
microphone/line 1
microphone/line 2
microphone/line 3
microphone/line 4
The music source can be easily changed. The status of
each music source is indicated by an LED.
8 Music source selector (for music inputs 1, 2, and 3).
9 Music source volume control.
10 Master low tone control.
A standard CAT 5 cable is used to connect the wall
panel to the mixer-amplifier. The maximum distance is
200 m. Please refer to the relevant datasheet for more
information.
11 Air inlet holes.
Note
Do not obstruct the airflow into the unit.
12 Headphone socket.
1
2
3
4
5
6
B
7
8
9
10
11
12
figure 2.2: Front panel
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Plena Mixer Amplifier | Installation and User Instructions | Description
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2.4.3 Rear panel
See figure 2.3 for an overview of the connectors and
switches:
15 Microphone/line 4 input, Euro style pluggable screw
(see number 14).
1 Tel. emergency/70V input, Euro style pluggable
screw terminal connector - VOX function. This input
has highest priority.
16 Outputs:
•
•
Call only, screw terminal connector 70 V.
Screw terminal connector 25 V, 70 V, and 4 Ohm.
control range -25 dB to 0dB (see number 1).
3 Remote control wall-panel-input, RJ-45 connector.
Wall panel incorporates: BGM source selection, and
zone on/off control.
17 Mains fuse.
18 Ground connection screw.
Note
4 Ducking level control for microphone/line inputs 1
and 2.
The unit must be grounded.
5 Music input (number 1 disc), 2x RCA/cinch
connectors. Stereo, summed mono.
19 Mains connector (3-pole).
6 Music input (number 2 radio), 2x RCA/cinch
connectors. Stereo, summed mono.
7 Music input (number 3 auxiliary), 2x RCA/cinch
connectors. Stereo, summed mono.
8 Music master output, XLR connector - switch setting
information, see chapter 4.2.3.
9 Cooling fan (PLE-1MA120 only).
Note
Always allow adequate space at the rear of the
unit for ventilation.
10 Microphone/line 1 input with trigger, Euro style
pluggable screw terminal connector - DIP switch
settings for: chime, PTT (push to talk), mic/line,
line 2 (see numbers 10 and 12 respectively).
12 Microphone/line 2 input, Euro style pluggable screw
terminal connector - DIP switch settings for speech
filter, mic/line, VOX, and phantom power (see
number 11).
line 4 (see numbers 13 and 15 respectively).
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Plena Mixer Amplifier | Installation and User Instructions | Description
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1
2
3
4
5
6
7
8
9
F01U.066.938
Rated input
power: 40VA
PLE-10M2-EU
Channel Mixer
115/230V~, 50/60Hz
S/N
8900 192 21001
2
Apparatus delivered
connected for 230V~
Call
Trigger
Line fuse
Gnd
T1L250V for 230V
T1.6L250V for 115V
Design Quality
&
The Netherlands
PLE-2CS
In
Chime
Ducking
Telephone/Emergency Input
Gnd
Line Music
Out Only
100V
0
Mix
Mute
Out
Insert
Wall Panel
Zone 1 Out
Zone 2 Out
Output
1(disc)
2(radio)
3(aux)
10
11
12
13 14
15
16
17 18 19
figure 2.3: Rear panel
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Intentionally left blank
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Plena Mixer Amplifier | Installation and User Instructions | Installation
en | 15
3
Installation
and 4.2).
3.1
Unpack unit
2 Check the settings (see section 4.3).
1 Remove the unit from the box, and discard the
packaging material according to local regulations.
2 Use your fingernails to carefully peel off the
protective plastic film from the label holders. Do not
use sharp or pointed objects.
3.4
Connect unit to mains
Caution
Potential equipment damage. Before
connecting power, always check the voltage
indicator plate at the rear of the unit.
3.2
Install unit in rack (optional)
The Plena Mixer Amplifier is intended for tabletop use,
but you can also mount the unit in a 19" rack (see
figure 3.1).
1 Make sure the power switch on the front of the unit
is set to Off.
2 Connect the power cord to the mains connector and
plug it into the mains outlet.
If you mount the unit in a rack, you must:
•
•
•
ensure that it does not exceed the overheating
temperature (45 °C ambient).
use the included Bosch mounting brackets
(LBC 1901/00).
remove the 4 feet from the bottom of the unit.
1
B
figure 3.1: Installing the unit in a rack
figure 3.2: Power connection and voltage selector
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Intentionally left blank
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Plena Mixer Amplifier | Installation and User Instructions | Connections and settings
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4
Connections and settings
4.1
Connecting inputs
4.1.1 Priority microphone (input 1)
The priority microphone (or a generic call station) that
can be used with push to talk (PTT) should be
connected to “microphone/line 1 input”. The PTT
mode can be activated by setting the DIP switch (11) at
the rear of the unit. Microphone/line 1 input has
priority over all other microphone/line inputs.
If, however, the “Tel. emergency/70V input” receives a
signal, all inputs including microphone/line 1 input will
be overruled.
The microphone/line 1 input has a Euro style pluggable
screw terminal connector. This Euro style pluggable
screw terminal connector has a trigger input, which can
be used in combination with the Euro connector.
figure 4.1: Euro connector with trigger
The priority microphone can be connected to the
•
•
Euro connector with trigger. See figure 4.1.
Euro connector only (without trigger).
trigger, as required. See section 4.3.
Note
When connecting an unbalanced line level
(200 mV) signal to the microphone/line input,
connect it as follows: Signal to +, connect to -
and GND to ground.
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Plena Mixer Amplifier | Installation and User Instructions | Connections and settings
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input 2”. See figure 4.2.
4.1.3 Additional microphones
(inputs 3 and 4)
Connect additional microphones to microphone/line
inputs 3 and 4 as required. See figure 4.2. These
microphones will mix with the background music.
Microphone/line input 2 has a DIP switch (11) at the
rear of the unit for setting the VOX mode. If the DIP
switch is set to VOX, the microphone/line input will
automatically be switched when a signal is sensed at the
microphone/line 2 input. For example, when someone
speaks into the microphone, other sound will either be
section 4.3.
4, as required. See section 4.3.
The Tel. emergency/70V input and Microphone/line
input 1 all have priority over the Microphone/line
input 2. Therefore, any signal received on any one of
these inputs will always be heard regardless of the
ducking level control setting for Microphone/line
input 2.
as required. See section 4.3.
figure 4.2: Connecting microphone inputs
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Plena Mixer Amplifier | Installation and User Instructions | Connections and settings
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4.1.4 Emergency inputs
The Tel. emergency/70V input, with VOX functionality,
is used for receiving emergency announcements or
signals (such as a fire alarm). This input has absolute
priority, and will overrule all inputs when an emergency
announcement or signal is received.
Note
Tel. emergency input does not mute the
incoming signal so that an incoming pilot tone
will be fed to the zone outputs. With this feature
it is possible to use the mixer amplifier in a
Bosch Voice Alarm System when using end of
line boards (PLN-1EOL).
The signal that is delivered to the unit should be
quiet when a call is not made. The pilot tone and
frequencies below 300 Hz are filtered from the
trigger signal so that the input will not trigger
from a pilot tone or low frequency rumble.
and section 4.1.4.2.
Caution
Never connect telephone lines and a 70 V signal
to the Euro style connector at the same time.
Connecting 70 Volt input signal
or signal, turn the rotary dial (2) at the rear of the unit.
For safety reasons, the volume of the emergency
Connect the 70 Volt input signal as shown in
figure 4.3.
The master volume control setting (5) does not influence
the volume setting of the emergency announcement or
signal.
figure 4.3: Connecting 70 Volt input signal
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Plena Mixer Amplifier | Installation and User Instructions | Connections and settings
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4.1.4.2
Connecting telephone lines
Connect the telephone lines as shown in figure 4.4.
Caution
A connection to a telephone network must
always be made via a telephone coupler that
provides adequate isolation between the
telephone network (PBX) and the Plena system.
The telephone coupler must also meet all
relevant requirements for this type of
communication equipment as imposed by law
and/or responsible telecommunication
organizations in the country of use. Never try to
make a direct connection between the telephone
network and the mixer amplifier.
figure 4.4: Connecting emergency telephone lines
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4.1.5 Music source inputs
When using a CD player, tuner or other auxiliary
device for background music, connect the line-out
connectors of the music source to the appropriate line-in
connectors of the mixer amplifier.
figure 4.5: Connecting music source inputs
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4.2
Connecting outputs
4.2.3 Music only
Use the music master output connector (8) to provide a
dedicated music out source for another device. For
telephone coupler, so that callers can listen to music
when they are put on hold (see figure 4.6).
4.2.1 Main output
Connect speakers to the 70 V or 4 Ohm terminal on the
Euro style pluggable screw terminal connector (16) at
the rear of the unit.
Also see section 4.2.4 “Connecting speakers”.
jumper. Only the music inputs (5, 6, and 7) will be
audible. All other inputs, including the Tel.
4.2.2 Call only
pluggable screw terminal connector (16) at the rear of
the unit.
emergency/70V input will not be sent to this output.
To hear all mixed inputs (microphone/line, emergency,
and music) set the internal jumper.
Also see section 4.2.4 “Connecting speakers”.
figure 4.6: Connecting music source inputs
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4.2.4 Connecting speakers
4.2.4.2 Low impedance loudspeakers
4.2.4.1 Constant voltage loudspeakers
figure 4.8: Connecting speakers
figure 4.7: Connecting speakers
Connect low impedance loudspeakers to the 4 Ohm/0
terminals. This output can deliver the rated output
power into an 4 Ohm load. Connect multiple
loudspeakers in a series/parallel-arrangement to make
the combined impedance 4 Ohm or higher. Check the
loudspeaker polarity for in-phase connection.
The mixer amplifier can drive 70 V constant voltage
loudspeakers.
Connect the loudspeakers in parallel and check the
loudspeaker polarity for in-phase connection. The
summed loudspeaker power should not exceed the
rated amplifier output power.
You can use the Call Only output for 3-wire remote
volume control override. You can also use this output as
an extra zone where announcements can be heard, but
not music.
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4.3
Unit settings
4.3.1 Rear panel settings
The unit can be quickly set-up for operation by setting
the following controls at the rear of the unit:
•
•
DIP switches
Rotary dials.
See the following tables for an overview of the settings
and typical examples of their use.
table 4.1: DIP switch settings
DIP switch
Chime
(mic/line 1)
On
Off
Typical example (On)
Chime will be sounded at the
beginning of an announcement.
Chime will not be sounded Announcement of train
at the beginning of an
announcement.
departure time.
PTT “Push to talk”
(mic/line 1 only)
This input is muted when the push Push to talk off. The signal
Users can have private
to talk contact is open. When the
push to talk contact is closed:
will be mixed with the other conversations during live
mic/line signals. broadcasts (for example,
Microphone 1 will mix with with an all call
the background music or call-station, such as the
•
this input is available for
speech.
•
•
a chime will sound, if selected. the other microphones in
PLE-1CS).
the music and other mic/line
inputs will be reduced in
the selected zones.
volume to the level set by the
ducking level control knob.
Line
Input signal from line.
Input signal from
microphone.
Depends on set-up.
Speech filter
Enhances clarity of speech, by
cutting-off the lower frequencies
of the signal.
Speech filter inactive.
Use for announcements
Phantom power
Provides power to condenser
microphones.
Phantom power
unavailable.
Enable phantom power if
you use electret or
condenser microphones.
Use to make casual
Microphone 2 will mix with announcements (such as
VOX
(mic/line 2 only)
Temporarily suppresses the
VOX inactive.
adjustable “ducking level” (see
table 4.2) while you speak into the the other microphones in
the background music or
announcing the winner of
a competition) while
temporarily suppressing
the background music to
an adjustable ducking
level.
microphone. The VOX mode is
normally used with hand-held
microphones such as the
LBC 2900/15. Background music
and announcements will be heard
in the selected zones. A chime is
not available in this mode.
the selected zones.
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table 4.2: Rotary controls
Rotary control
Effect
Typical example
Ducking level control Sets the required ducking level when VOX and/or
push to talk is active (see table 4.1). When the
Set the ducking level control to
mute if you want the
ducking level is set to mute, the music volume will be announcement to be heard without
fully attenuated; when the ducking level is set to mix, background music.
both music and speech inputs can be heard - music
and speech will be mixed. When ducking the music
input is ducked (attenuated), the microphone/line
inputs are always muted when a call is made.
Telephone
emergency/70V
volume control
Attenuates the emergency announcement or signal.
Control range from -25 dB to 0 dB. For safety
reasons, the volume of the emergency
Set the volume of the emergency
announcement to a higher level
when the system is being used in
large open areas.
announcement or signal cannot be fully set to zero.
Note
When PTT or VOX are selected, the ducking
control controls between 3 dB attenuation (very
little ducking) to –∞ dB (muted).
When ducking, the music is also present on the
Call only output. If you do not want this, set the
ducking control to mute.
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4.3.2 Pin settings and labelling
Users can create custom labels for the: microphone/line
inputs, description of the music sources, and audio
the mixer amplifier at position numbers 2 and 3 (see
figure 2.2). Colored pins can also be inserted at various
positions around the dial controls to indicate the favorite
settings for a particular application.
The pins are engineered in such a way that they cannot
be taken out by hand. This is to prevent tampering. The
pins are intended to be inserted once, during installation
of the unit. The silver pins should be used to indicate
the preferred settings of the unit. The red pins can
optionally be used to indicate the maximum setting of a
knob.
If these settings have to be changed, use a pair of soft-
tipped pliers to carefully remove the pins. If you do not
have a pair of soft-tipped pliers, you can use ordinary
pliers instead, but first place some plastic tape on the
tips of the pliers to prevent damaging the front of the
unit.
To remove the clear plastic covers in front of the labels:
1 Carefully insert a small screwdriver into the cut-out
at the bottom of the plastic cover.
2 Gently lift the cover, and bend it in the middle. Take
care not to force the cover or the front panel.
To reattach the plastic covers with paper labels:
1 Insert the paper label into the holder at the front of
the unit.
2 Pick up the cover, and then bend it slightly in the
middle by hand.
3 Fit the cover into the slot at the front of the unit, and
then gently release the cover, making sure that the
paper label stays in place.
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5
Operation
5.1
Switch on and off
5.1.1 Switch on
Caution
Potential equipment damage. Before applying
power, always check the voltage indicator plate
1 Set the power button (1) on the front of the unit to
On - pushed in (see figure 5.1).
Set the power button (1) on the front of the unit to Off -
popped out (see figure 5.1).
1
2
3
4
5
6
B
7
8
9
10
11
12
figure 5.1: Front panel
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5.2
Microphone/line controls
5.5
Output controls
Use the master volume control dial (5) to collectively
control the sound level of all outputs, except the
emergency announcement/signal.
Note
Users can create custom labels for the
microphone/line inputs and description of the
music sources. These labels can be attached to
the mixer amplifier at position numbers 2 and 3
(see figure 5.1). Colored pins can also be
inserted at various positions around the dial
controls to indicate the favorite settings for a
Use the volume controls (7) to individually control the
sound level of microphone/line inputs 1 through 4.
5.3
Music controls
Use the music source selector (8) to select one of the
connected music sources.
5.3.2 Volume control
Use the music source volume control (9) to control the
sound level of the selected music source.
5.4
Tone control
The tone controls are not standard bass and
treble controls: they can be used as a traditional tone
control with high and low control, but also have a
powerful contour that addresses problems found in real
situations.
The tone control for the low frequencies boosts deep
bass first without making the sound boomy, and cuts
rumble without loosing warmth in the low frequencies.
figure 5.1, numbers 4 and 10) to change the tone.
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6
Technical data
6.1.5 Mic/line input 4 x
Input 1 (Push-to-talk contact with ducking
functionality)
6.1
Electrical
5-pin Euro style, balanced, phantom
Input 2-4 (VOX with ducking functionality on input
2)
5-pin Euro style, balanced, phantom
Sensitivity
1 mV (mic); 200 mV (line)
Vox sensitivity
6.1.1 Mains power supply
Voltage
230 VAC, 10%, 50/60 Hz
Inrush Current PLE-1MA030-US
4.5 A
Inrush Current PLE-1MA060-US
5 A
Inrush Current PLE-1MA120-US
10 A
-15 dB (attack time 20 ms; release time 4 s)
Impedance
>1 kohm (mic); >5 kohm (line)
S/N (flat at max volume)
63 dB (mic); >70 dB (line)
S/N (flat at min volume/muted)
>75 dB
6.1.2 Power consumption
PLE-1MA030-US
100 VA
Dynamic range
100 dB
PLE-1MA060-US
200 VA
PLE-1MA120-US
400 VA
S/N (flat at max volume)
>63 dB (mic); >70 dB (line)
S/N (flat at min volume/muted)
>75 dB
CMRR
>40 dB (50 Hz to 20 kHz)
Headroom
6.1.3 Performance
>25 dB
Frequency response
Speech filter
50 Hz to 20 kHz (+1/-3 dB @ -10 dB ref. rated
output)
Distortion
<1% @ rated output power, 1 kHz
Bass Control
-3 dB @ 315 Hz, high-pass, 6 dB/oct
Phantom power supply
16 V via 1.2 kohm (mic)
Max -12/+12 dB (frequency is level dependent)
Treble Control
Max -12/+12 dB (frequency is level dependent)
6.1.4 RJ-45 input 1 x
Wall panel input
For PLE-WP3S2Z
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6.1.6 Music inputs 3x
Connector
Cinch, stereo converted to mono
6.1.10 Loudspeaker output 4 Ohm*
Sensitivity
Connector
200 mV
Impedance
22 kohm
Screw terminal, floating
PLE-1MA030-US
16 V (30 W)
S/N (flat at max volume)
>70 dB
PLE-1MA060-US
22 V (60 W)
S/N (flat at min volume/muted)
>75 dB
PLE-1MA120-US
31 V (120 W)
Headroom
>25 dB
6.2
Mechanical
Dimensions (H x W x D)
100 x 430 x 270 mm (19" wide, 2U high)
Mounting
Stand-alone, 19" rack
Color
6.1.7 Emergency / telephone 1 x
Connector
7-pin, Euro style pluggable screw connector
Sensitivity tel
100 mV – 1 V adjustable
Charcoal
Sensitivity 70V
10 V – 70 V adjustable
Weight (PLE-1MA030-US)
Approx. 5 kg
Impedance
>10 kohm
Weight (PLE-1MA060-US)
Approx. 8.5 kg
S/N (flat at max volume)
>65 dB
Weight (PLE-1MA120-US)
Approx. 10.5 kg
VOX
threshold 50 mV; attack time 150 ms; release time 2 s
6.3
Environmental
Operating temperature
-10 to +45 ºC
Storage temperature
-40 to +70 ºC
6.1.8 Master/music output 1 x
Connector
5-pin Euro style pluggable screw connector, balanced
Nominal level
1 V
Relative humidity
<95%
Impedance
<100 ohm
Acoustic noise level of fan (PLE-1MA120-US)
<33 dB SPL @ 1 m
6.1.9 Loudspeaker outputs 70 V
Connector
Screw connector, floating
Max / rated PLE-1MA030-US
45 W / 30 W
Max / rated PLE-1MA060-US
90 W / 60 W
Max / rated PLE-1MA120-US
180 W / 120 W
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