BEYERDYNAMIC MCS-D 3121 Revoluto MCSD3121_DB_E_A5.pdf

FEATURES

• Fully-digital audio and control

• Up to 1,000 microphone units per system

• Revoluto Microphone Array Technology

• Corridor characteristic

• Integrated two-way speakers

• Headphone socket

• Microphone button for switching the microphone on and off
and requesting to speak

• LED on the microphone button and illuminating bars on the
sides of the housing indicate that the participant is requesting
to speak or the microphone unit is in ready-to-talk mode

• NetRateBus conference sockets (push-pull) for connection in
the MCS-D-200 conference system

• Sturdy housing

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 224
[e-mail] | www.beyerdynamic.de

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E5 / MCS-D 3121 (03.10)

MCS-D 3121

Delegate Microphone Unit

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DESCRIPTION

The MCS-D-3121 delegate microphone unit is equipped with a
microphone button and a two-way loudspeaker system. The
operating mode of the microphone unit can be configured through
the MCS-D 200 control unit or using iCNS software.
In the standard mode (free switching on possible) the participant
can use the microphone button to switch the microphone on and
off. The LED on the microphone button signals that the microphone
is ready to be used. If the maximum number of active microphones
has been reached, the LED will only flash for a short time and the
delegate must press the button once more.
In the conference system's activation mode, the microphone button
is used for entering a request to speak. This request is visually
displayed by the flashing LED on the microphone button. Once the
microphone has been enabled by the PC/media controller user
or the president microphone unit, the LED stops flashing and is
continuously lit. The delegate can deactivate the unit again by
pressing the microphone button once more. If the maximum
number of active microphones has been reached, the LED will only
flash for a short time and the delegate must activate their micro­phone once again.
In automatic mode, the participant's request is registered once the

maximum number of active microphones has been exceeded. If a
participant switches off their microphone, the microphone unit is
switched on automatically If the maximum number of possible
registrations has been reached, the LED will only flash for a short
time and the delegate must activate the unit once again.
In FiFo (first in – first out) mode, the delegates speak in succession.
A delegate can use the microphone button to switch on their
microphone. If the maximum number of open microphones is
exceeded, the microphone of the speaker who has been speaking
the longest is switched off.
A noticeable feature of the integrated loudspeaker is its accurate
and intelligible sound. If the participant switches on their micro­phone, their own loudspeaker is switched off.
The Revoluto microphone array technology with integrated micro­phone capsules provides a so-called corridor characteristic which
ensures a wide range of good voice quality. The speaker can move
freely, i.e. can stand up or sit down, can move his/her head and
move towards or away from the microphone unit.
Power is supplied to the microphone unit via the bus cable. As part
of the MCS-D 200 conference system, the microphone system can
be employed at any position in the bus network.

ARCHITECT’S SPECIFICATIONS

Digital desktop discussion microphone unit with Revoluto
microphone array technology as a delegate version for use with
NetRateBus.Button for switching on/off and signalling a talk
request, with a green LED indicating the microphone is on and a red
LED indicating a talk request. 17 microphone capsules in Line-Array
set-up with corridor characteristic, two red LED illuminating bars at
the side to indicate that the speaker is ready to talk. Headphone
output with 3.5mm jack and two-way loud speaker system.
Microphone unit addressing via network and storage on unit. Two
push-pull system-quick plug connection system for the conference
network. With chip card reader. Design: Profiled aluminium
housing with anthracite-coloured, non-glare and scratch-resistant
Nextel surface coating. Dimensions (LxWxD) 300.00x77.00x96.00mm.
Weight 770g.

Manufacturer: beyerdynamic
Type: MCS-D 3121 Revoluto

TECHNICAL SPECIFICATIONS

Frequency response . . . . . . . . . . . . . . . 130 Hz to 17,000 Hz

Microphone . . . . . . . . . . . . . . . . . . . . . line array

Recording characteristic . . . . . . . . . . . . corridor

Current consumption . . . . . . . . . . . . . . max. 130 mA

Distortion factor. . . . . . . . . . . . . . . . . . < 0.1%

Headphone socket . . . . . . . . . . . . . . . . 3.5 mm / mini mono jack

socket

System connections . . . . . . . . . . . . . . . 2 x push-pull

Minimum impedance . . . . . . . . . . . . . . 8 Ω

Temperature range. . . . . . . . . . . . . . . . 0 °C to +40 °C

Dimensions (L x H x D) . . . . . . . . . . . . . 300 x 77 x 96 mm

(11.81 x 3.03 x 3.78")

Weight. . . . . . . . . . . . . . . . . . . . . . . . . 770 g (1.7 lb)

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 224
[e-mail] | www.beyerdynamic.de

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E5 / MCS-D 3121 (03.10)

MCS-D 3121

2 of 2

VERSIONS

MCS-D 3121 Revoluto Delegate

Microphone Unit . . . . . . . . . . . Order # 486.787

MCS-D 3121 H same as above, but

NetRateBus sockets

at the bottom . . . . . . . . . . . . . . Order # 487.961

DIMENSIONS

Bottom view H-version

Dimensions in mm

M4 sockets for mounting on a table