Beyerdynamic MTS 67 User manual

BEDIENUNGS-

ANLEITUNG

OPERATING

INSTRUCTIONS

NOTICE

D’UTILISATION

MTS 67

Tischsprechstelle

Desktop Microphone Unit

Poste d’appel

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-

english

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.

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

english

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

Frequenzgang /

Frequency Response Curve /

Courbe de fréquence

Schaltbilder /

Wiring Diagrams /

Diagrammes de câblage

Richtdiagramm /

Polar Pattern /

Directivité

NOTIZEN • NOTES

DEF 3/BA MTS 67 (12.02)/549.533/Hoh. · Änderungen und Irrtümer vorbehalten · Subject to change without notice · Sous réserve de modifications · Printed in Germany

Germany

Theresienstr. 8

74072 Heilbronn

Tel. +49 (0) 71 31 / 617-0

Fax +49 (0) 71 31 / 617-224

E-Mail: [email protected]

www.beyerdynamic.de

United States

56 Central Ave.

Farmingdale, NY 11735

Tel. +1 (631) 293-3200

Fax +1 (631) 293-3288

E-Mail: [email protected]

www.beyerdynamic.com

Great Britain

17 Albert Drive

Burgess Hill RH15 9TN

Tel. +44 (0)1444 / 258258

Fax +44 (0)1444 / 258444

E-Mail: [email protected]

www.beyerdynamic.co.uk

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