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OPERATING INSTRUCTIONS MTS 67
Thank you for selecting the MTS 67 desktop microphone
unit. Please take some time to read carefully through this operating
instructions before setting up the equipment.
Description
The MTS 67 is an “intelligent” desktop microphone unit
controlled by a microcontroller. Depending on the application,
you can choose between the operating modes ON/OFF, Push-To-
Talk (PTT) or Push-To-Mute (PTM). Furthermore, the frequency
response can be tailored in three modes to suppress noise: linear,
90 Hz bass roll off or 150 Hz bass roll off.
The MTS 67 is switched on and off with the microphone button.
An LED indicator in the casing and an illuminated ring of the
gooseneck microphone show the ready-to-talk status.
The MTS 67 is available in two versions.
• The MTS 67/3 is equipped with a 3-pin male XLR connector.
• The MTS 67/5 has a 5-pin male XLR connector. This
microphone unit can be operated via an external control
contact (operator). The integrated microphone button can
be either switched on simultaneously or put out of operation.
Using the microphone button an external device (e.g. mixing
amplifier for announcements) can be triggered by an open
collector control output.
Applications
The MTS 67 is ideal for discussions, tele/video conferencing
and announcements.
Connection
MTS 67/3
The MTS 67/3 microphone unit is equipped with an
integrated amplifier with electronically balanced output. The
unit is powered with phantom power (24 to 48 volts). The
MTS 67/3 can be connected to mixing console supplying this
phantom power for instance.
This is the connection of the 3-pin XLR-plug:
Pin 1: Ground
Pin 2: Audio+
Pin 3: Audio-