Microphone desk
1. INTRODUCTION
Microphone desk with CAN Bus communications for COMPACT Systems.
Principal characteristics:
• Input & output RJ45 connectors for audio and
communication signals
• Dispatch of announcements to zones and/or groups
• Allows the activation of pre-recorded messages housed in
the COMPACT unit.
• 18 confi gurable keys: zone selection, group selection or
pre-recorded messages activation
• Announcements with or without a pre-announcement
tone and final tone (Gong).
• 3 or 4 tones configurable Gong.
• All Call / Clear key.
• Repeat Key, for repetition of the last live voice message.
• Speech filter.
• Compressor to avoid microphone saturation.
• GONG volume adjustment.
• Microphone volume adjustment.
• Capsule surveillance.
• Internal status surveillance.
• Generic fault LED indicator.
• Interna l error LED i ndica tor.
• Acoustic alarm indicator.
• Microphone audio level indicator.
• Indicator lights for the selected/occupied zones.
• Powered by 24V DC.
• Every COMPACT matrix unit allows connecting 16 units of
MD-30C microphone desks.
2. FRONT VIEW
(1) Microphone
(2) Keys 1 to 18
Depending on the configuration of the microphone desk, keys
1 to 18 are used for selecting a zone, selecting a group or
activate a pre-recorded message.
a) Selection of zones: A zone is assigned to the key.
When the key is pressed, the assigned zone will be pre-
selected and the LED will illuminate. When a live voice
me s sage, pre -recorded message o repetition is activated,
the message will be broadcast in that zone.
b) Selection of the group: A group i s assigned to the key.
When the key is pressed, the assigned group will be pre-
selected and the LED will illuminate. When a live voice
me s sage, pre -recorded message o repetition is activated,
the message will be broadcast in that group.
c) Pre-recorded message activation: A pre -recorded
mes sage is assigned to the key. When the key is pressed,
the pre-recorded message is sent to the zones or groups
that have previously been selected.
(3) REPEAT Key
Key for repeating the last live voice message that wa s sent.
(4) TALK Key
Is used to send live voice announcements. First the zones you
wish to reach with the mess a ge mus t be sel ected. It mus t
remain pressed while talking.
(5) GONG+TALK Key
Is used to send live voice announcement preceded by a gong.
First the zones you wish to reach with the message must be
selected. It must remain pressed while talking
(6) ALL CALL / CLEAR Key
When pressed, it selects all the zones to carry out a general
call (ALL CALL).
When pressed, if there are selected zones or groups, the
selection is cleared (CLEAR).
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