BEDIENUNGS-
ANLEITUNG
OPERATING
INSTRUCTIONS
NOTICE
D’UTILISATION
MTS 67
Tischsprechstelle
Desktop Microphone Unit
Poste d’appel
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MTS 67/5
The MTS 67/5 microphone unit is also powered with
phantom power (24 to 48 volts). Depending on the application
this microphone unit can be connected to a control desk if the
microphone unit is operated by an external control contact or
to a mixing amplifier if external devices are controlled.
This is the connection of the 5-pin XLR-plug:
Pin 1: Ground
Pin 2: Audio+
Pin 3: Audio-
Pin 4: Control output Open Collector 50 mA / 55 V
Pin 5: Control input floating connection to chassis
Operation
Adjustment operation mode
The desired operation mode is set at the bottom of the
microphone unit.
• ON/OFF
The microphone is switched on or off by
pressing the microphone button.
• PTT
The microphone is switched on as long as
the button is pressed.
• PTM
The microphone is switched off as long as the button is pressed
(cough button).
Adjustment Frequency Response
The frequency response mode can be adjusted at the
bottom of the microphone unit.
• LIN
Linear frequency response for highest
fidelity of reproduction. This is the factory
adjustment. The linear position is
recommended for high voices.
• 90 or 150
Two-stage roll-off filter to reduce low-frequency noise and to
compensate the close-talking effect. The 90 or 150 position is
recommended for deep voices.
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Additional Functions of the MTS 67/5
Control output - Control of external devices
Pin 4 is an open collector control output to control exter-
nal devices. When the microphone is activated the output is
low-impedance to chassis (Pin 1). The maximum current is
12 mA, the maximum voltage is 55 V, total power dissipation
150 mW. If you want to connect higher loads, this output can
also be used for the control of an additional switch.
Example:
If you connect the MTS 67/5 to the E 3300 mixing amplifier, the
current programme (e.g. music) can be faded out and the
microphone switched on for an announcement by pressing the
microphone button.
Control input - Control by external devices
The microphone unit can be controlled by an external
control contact connected to pin 5 (floating connection to chas-
sis, pin 1). The operation can be remotely controlled by an oper-
ator. Using the DIP switch located on the underside allows you
to select between remote control operation (switch to “Remote
control only”) or microphone button and remote control equal-
ly (switch to “Remote and internal control”).
Example:
If you connect the MTS 67/5 to an operating console, video
conference or media control system the microphone unit can
be switched on and off centrally at the operation console, by
the conference participant or by the media control system.
Important!
To connect the MTS 67/5 us a cable with the following structure:
2 wires shielded (AF), 2 control lines and overall shield.
Versions
MTS 67/3 with 3-pin male XLR connector . . Order # 453.862
MTS 67/5 with 5-pin male XLR connector . . Order # 454.168
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Technical Specifications
Transducer type . . . . . . . . . . . Condenser (back electret)
Frequency response (linear) . . 60 - 19,000 Hz
Polar pattern . . . . . . . . . . . . . Cardioid
Open circuit voltage
at 1 kHz . . . . . . . . . . . . . . . . . 16 mV/Pa
Nominal impedance. . . . . . . . 180 Ω
Load impedance. . . . . . . . . . . > 1 kΩ
Max. SPL
at f = 1 kHz, k < 1%. . . . . . . . 122 dB
Signal-to-noise ratio
rel. to 1 Pa . . . . . . . . . . . . . . . 60 dB
A-weighted equivalent SPL . . approx. 26 dB
Level attenuation Off / Mute
(f = 1 kHz) . . . . . . . . . . . . . . . > 65 dB
Supply voltage . . . . . . . . . . . . 24 - 52 V, phantom
Power consumption . . . . . . . . 8.5 mA
Connection MTS 67/3 . . . . . . . 3-pin male XLR
Pin 1 = Shield
Pin 2 = Audio+
Pin 3 = Audio-
Connection MTS 67/5 . . . . . . . 5-pin male XLR
Pin 1 = Shield
Pin 2 = Audio+
Pin 3 = Audio-
Pin 4 = Control output
Open Collector 50 mA / 55 V
Pin 5 = Control input
floating connection to chassis
Gooseneck length . . . . . . . . . 400 mm
Dimensions (without microphone)
L x W x H . . . . . . . . . . . . . . . . 190 x 104 x 52 mm
Weight . . . . . . . . . . . . . . . . . . 770 g
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Frequenzgang /
Frequency Response Curve /
Courbe de fréquence
Schaltbilder /
Wiring Diagrams /
Diagrammes de câblage
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Richtdiagramm /
Polar Pattern /
Directivité
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NOTIZEN • NOTES
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