Applications; Setting Up And Connecting The Matrix Router; Audio Units With Line Output; Microphones - Monacor ARM-880 Manual De Instrucciones

3 Applications

GB
The ARM-880 is an audio signal matrix router
which allows to route eight different audio
sources (microphones, MP3 / CD player, tuner,
PC, etc.) to eight PA zones as desired. By inter-
connecting four ARM-880 units the system can
be extended to 32 zones. A power amplifier for
the speakers is required for each zone.
Numerous connections are available for further
functions:
– 2 inputs for the zone paging microphones
ARM-880RC which allow to make announce-
ments only to certain zones or to all zones
– 1 connection for each zone for a wall module
ARM-880WP... for remote control of the zone
and/or for feeding an audio signal to the zone
– 1 additional input for each zone for an audio
signal routed to the corresponding zone only
– 1 microphone input whose signal can be
routed to all zones, with priority function to be
activated
– 1 alarm input for each zone to trigger an alarm
signal in the zone or to feed through an audio
signal separately fed to the zone
– Connections for a 24 V emergency power sup-
ply unit
4 Setting Up and
Connecting the Matrix Router
The ARM-880 is designed for insertion into a
rack for units with a width of 482 mm (19"), but it
can also be used as a table-top unit. For instal-
lation into a rack 3 RS (rack spaces) = 133 mm
are required.
Prior to connecting units or changing exist-
ing connections switch off the matrix router and
the units to be connected. All connections should
only be made by qualified personnel.
For easier handling when connecting, the
green screw terminals (19, 22, 29, 30, 36) can be
removed from their plug-in connections.

4.1 Audio units with line output

To be able to route signals of audio units with
line output (e. g. radio, MP3 / CD player, tape
deck, PC) to the PA zones as desired, use the
inputs LINE 1 to 4 (34) and LINE/MIC 5 to 8 (36).
RCA jacks are available for the inputs LINE 1 – 4
and screw terminals for the inputs LINE / MIC
5 – 8. When connecting an audio unit to the
screw terminals, set the corresponding switch
(37) to position LINE.
For routing the signals of an audio unit exclu-
sively to a certain zone, the additional screw ter-
minal input (22) can also be used which is avail-
able for each zone.
The screw terminals are designed for bal-
anced signals. For an unbalanced connection
feed the signal to the contact + and connect the
contacts - and GND to the signal ground.

4.2 Microphones

When connecting several microphones, these
microphones may receive a different priority, i. e.
an announcement made via a microphone of
high priority may automatically interrupt an
announcement made via a microphone of lower
priority.
Highest priority is given to the zone paging
microphones ARM-880RC which allow to make
announcements in certain zones only or in all
zones. Two zone paging microphones may be
connected to the jacks PAGING MIC 1 and 2
(38). For this purpose, a network cable (e. g.
12
Cat 5 cable) with RJ45 plugs is required. The
power supply of the microphones is made via the
matrix router. However, for cable lengths from
50 m, the power supply unit provided must be
used which is connected to the jack 24 V (47).
Medium priority is given to a microphone con-
nected to the jack MICROPHONE 1 (40). The
microphone signal can be routed into the zones
and volume-adjusted by the controls MIC 1 (6).
For priority of this microphone signal over the
signals of the inputs LINE 1 – 4 (34) and LINE /
MIC 5 – 8 (36), after switching on the matrix
router, press the buttons PRIORITY (10) of the
corresponding zones. The function can also be
activated and deactivated together for all zones
with the button PAGE ALL (18).
Note: The priority adjustment is not stored when
switching off the matrix router and must be made again,
if required, after switching on the matrix router again.
Lowest priority is given to microphones con-
nected to the screw terminals of the inputs LINE/
MIC 5 – 8 (36).
The screw terminals are designed for bal-
anced signals. For an unbalanced connection
feed the signal to the contact + and connect the
contacts - and GND to the signal ground.
If the microphone requires a phantom power
(46 V), set the corresponding switch (37) to posi-
tion PHANTOM. For microphones which do not
require any phantom power, set the switch to
position MIC.

4.3 Alarm inputs

For each zone, a contact (1 – 8) for alarm trigger-
ing is available at the screw terminal FIRE
ALARM (29). If this contact is connected to the
contact "G" via a corresponding switch, a (fire)
alarm signal sounds in the zone and the indication
"AL" flashes on the display (3). If the wall module
ARM-880WP1 or ARM-880WP2 is connected,
"Er" is indicated there. Adjust the alarm volume
together for all zones with the control TONE OUT-
PUT (31). The alarm signal has highest priority
and interrupts all other signals in the zone.
Instead of the fire alarm signal a pulsating sig-
nal sound or a rising siren signal may sound. Con-
nect the contacts ALERT and COMMON of the
terminal EMERGENCY (30) for a pulsating signal
sound or the contacts EVAC and COMMON for a
rising siren signal.
Additionally or alternatively, when an alarm
is triggered, an audio signal with line level fed to
the contact EMC IN of the terminal EMER-
GENCY (30) can be routed into the correspond -
ing zone. In this case, too, all other signals in the
zone are interrupted. The signal volume for all
zones together can be adjusted with the control
EMC INPUT (32).

4.4 Wall modules

Each PA zone can be remote-controlled by con-
nection of the wall module ARM-880WP1 or
ARM-880WP2. For remote feed-in of an audio
signal into a zone the wall module ARM-880WP1
or ARM-880WP3 can be used.
Connect the RJ45 jack "Net Interface" on
the rear side of the module via a network cable
(e. g. Cat 5 cable) with RJ45 plugs to the jack
REMOTE WALL CTRL (21) of the correspond -
ing zone. The power supply of the wall modules
is made via the matrix router. However, for cable
lengths from 50 m use a power supply unit
(24 V , current rating of 500 mA) to be con-
nected to the contacts 24 V and GND of the
screw terminal on the rear side of the module.
Press down the button REMOTE WALL
CTRL (25) for zones, a wall module is connected
to. Otherwise the zone cannot be remote-con-
trolled with the module. For models ARM-
880WP1 and ARM-880WP2, "OF" will be indi-
cated on the display (63).

4.5 Power amplifier or active system

A balanced output signal for each zone is pres-
ent at the screw terminals OUTPUT (19). In each
case connect the input of a power amplifier for
the speakers to this terminal. If the amplifier is
provided with an unbalanced input only, connect
it to the contacts + (signal) and GND (ground)
only. Alternatively, active speaker systems may
be connected to the zone outputs.
4.6 Extension of the system
to up to 32 zones
If eight PA zones are not sufficient, the system
can be extended to 16, 24 or 32 zones by using
up to three further matrix routers ARM-880.
Note: Thus, the number of inputs capable of routing is
not increased. Only the signals of the inputs LINE 1 – 4
(34) and LINE / MIC 5 – 8 (36) of the master unit can be
routed as desired to all zones available. However, the
additional inputs (22) for each zone and the alarm
inputs (29, 30) at each ARM-880 can be used. A wall
module may be connected to each further zone.
1) Connect the terminal EXTENSION LINK OUT
(33) of the master unit (at which all signals to
be distributed as desired are present) to the
terminal EXTENSION LINK IN of an addi-
tional matrix router ARM-880 (= slave unit)
via the supplied cable.
2) The DIP switch MASTER (28) at the master
unit must be set to the lower position ON. All
other DIP switches must be in the upper posi-
tion.
3) Set the DIP switch SLAVE 1 at the (first)
slave unit to the lower position ON. All other
DIP switches must be in the upper position.
4) A second slave unit may be connected to the
first in the same way and a third to the second
slave unit. Set the DIP switch SLAVE 2 at
the second slave unit and the DIP switch
SLAVE 3 at the third slave unit to the lower
position. All other DIP switches must be in the
upper position.
5) If the zone paging microphones ARM-880RC
are used in the system, these microphones
have to be completed with the extension
module ARM-880RCE for each slave unit so
that also the additional zones can individually
be selected. Connect the cable (49) of the
zone paging microphone to the jack on the
lower side of the extension module. If re -
quired, connect the plug (58) of the extension
module to the next extension module.
Address each extension module with its
DIP switches (50):
For the Set DIP switch No. x to
Module
zones
1 9 – 16
2 17 – 24
3 25 – 32
4.7 Power supply and
emergency power supply
Finally connect the supplied mains cable to the
mains jack (27) first and then to a socket
(230 V~/ 50 Hz).
For continuous operation of the matrix router
in case of mains failure, connect a 24 V emer-
gency power supply unit (e. g. PA-24ESP from
MONACOR) to the contacts BATT SUPPLY +
and – of the screw terminal EMERGENCY (30).
position ON
1
2
3