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MMT2
2/2 50.0051.01.00
MICROPHONE / LINE INPUT
MMT2 MODULE
FUNCTION
ALLOWS THE CONNECTION OF STANDARD MICROPHONES OR AUDIO SOURCES
AND SENDS MESSAGES TO PRE-SET ZONES
DESCRIPTION
In order to address a message with the microphone or audio source connected to this
module, the front "ON" pushbutton should be pressed or the "ON REMOTE" switch should
be activated remotely. The module addresses the message as long as the "ON" switch is
active.
However, the special
Voice Over
function broadcasts the message without the need for
manually activating the "ON" or "ON REMOTE" switch. The
Voice Over
function, which can
be enabled by setting an internal jumper, activates the module automatically when an
incoming signal is detected, be it from a microphone or from an audio source. The module
automatically deactivates itself after 3 seconds without any signal input.
The spoken message may or may not respect the priority system. If the module is
configured to operate with priorities, the zone structure and the priority hierarchy is
preserved (the microphone signal attenuates the music). If the module is configured to
operate without priorities (BGA), the microphone signal is mixed with BGM and both
signals will get attenuated whenever a high priority message (spoken message or alarm)
takes over the system.
A specially designed tone control is built in to enhance voice intelligibility in problematic set-ups.
The volume control is associated with to a bi-colored LED indicator, which helps when adjusting the optimal audio level (it should
light green, not red).
The LINE input (RCA connectors) presents an input sensibility of -10dBV / 1K8Ω.
The sensibility of the MICRO input (XLR-3 connector) can be configured with jumpers in order to adapt to different microphone
types (dynamic, condenser, electret, wireless...) and also to line level signals. Microphones which need Phantom power can also be
used with this module, for that purpose an internal jumper should be set.
CHARACTERISTICS
INDICATORS:
PAGING
: Broadcasting the spoken message through the PA system
BUSY
: System busy
SIGNAL LEVEL
: Facilitates the adjustment for optimal volume
INTERNAL
CONFIGURATIONS: OPERATING MODE: Priorities + zones
Mixed with BGM (BGA)
ZONE ASSIGNMENT
PRIORITY LEVEL
: 1, 2 or 3
XLR3 INPUT SENSIBILITY
: ATT (-30dBV/1K8Ω), NOT ATT (-50dBV/1K8Ω)
and LINE (-10 dBV/1K8Ω)
VOICE OVER
: ON or OFF
PHANTOM
: ON or OFF
CONTROLS:
ON
: Switch for PAGE
VOLUME
TREBLE
: -20 +10dB 10kHz
MID
: -20 +10dB 1.8kHz
BASS
: -20 +10dB 100Hz
CONNECTIONS:
MICRO INPUT
: Balanced microphone input through XLR3 connector
LINE INPUT
: Stereo input through RCA connectors
MICRO/LINE
: Input selector
REMOTE ON
: Remote input for “paging switch”
MMT2
50.0051.01.00 1/2
CONNECTING THE MMT2
To carry out the connection of this module you should follow the steps indicated in the figure on next page:
Choose an operating mode with the jumper marked with nr.1: This module can operate respecting the priority and zone
system (ALAR) or as BGA.
ATTENTION: You can have only one module acting as BGA. Remember that to work in this operating mode, you must
remove all zone assignment and priority jumpers.
If you decide the module to work in ALAR. mode, select now its priority. To do that, you will have to place two PRIORITY
jumpers according to the priority you wish this module to have. (indication nr.2 of the figure on next page). For example:
To set the priority to 3, place the two jumpers at positions J112 and J115.
ATTENTION: There can only be one module with Priority 1. Remember that every module containing
PRIORITY
information must be mounted on the same chassis.
If you configure the module to operate in ALAR. mode, define now the zone or zones to which the message has to be sent
by means of the jumpers indicated with nr.3. For example: If you wish the module to act in zones 3 and 5, insert two
jumpers at position J118 and J121.
Set the input sensibility of the XLR-3 connector with the jumpers indicated with nr. 4: ATT: -30dBV / 1K8Ω NOT ATT: -
50dBV / 1K8Ω and LINE: -10dBV / 1K8Ω.
Use the following table, where X means that the jumper is inserted.
LINE J105
MIC J106
LINE J107
MIC J108
MIC ATT J109
LINE
X
-
X
-
-
MIC
-
X
-
X
-
MIC ATT
-
X
-
-
X
If you are going to use a microphone that requires Phantom power, insert a jumper in the position indicated with nr. 5.
When inserted, the phantom power is enabled; when not, it is disabled.
Choose whether the module should activate using the
Voice Over
function or not. For that purpose, set the jumper
indicated with nr.6 to ON or OFF.
ATTENTION: This Jumper must be set either ON or OFF. The module would otherwise not operate correctly.
Insert and screw the module and the chassis together in the front and back panels.
Connect the data buses (Flat 10- and 20-way cables) to the connectors marked with nr. 7 in the next figure.
Link together the front and back panel. In this case you will have to connect following connector pair marked with nr. 8:
J120-WI101.
Once the complete installation of one or various chassis and the peripherals connections to ENVIRO has been carried out,
you should adjust the volume of this module so that the SIGNAL LEVEL LED lights up green while talking normally. As the
final step in the modules configuration, you may wish to adjust the tone controls.
MMT2 MODULE
J101
1
WI101
J120
1
On Off
VO I C E- O VER
J126
ALAR.
J138
J104
BG A
J131
J105
J107
LINE
MIC
MIC ATT
J108
J109
J106
LINE
MIC ATT
MIC
PHANTOM
J129
J130
J12
4
J12
5
1011
12
ZO
NE
9 8
J121
J12
3
J122
5
7
6
123
J157
J1
12
J
119
J11
8
J116
J117
ZO N E
4
3
12
J111
J11
3
J115
J114
J110
PR I O RI TY
R
143 R
156
R1
62
R144
S102
J133
D1
27
D1
20
D1
28
PRIORITIES:
Priority 1: J110-J113
Priority 2: J111-J114
Priority 3: J112-J115
3
2
1
4
5
6
7
8
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