Plantronics MCD100 User manual

MCD100TM USB Speakerphone
User Guide

Plantronics MCD100 USB Speakerphone
Welcome
Congratulations on purchasing your new Plantronics product. This guide contains instructions for setting up and using your Plantronics
MCD100 USB speakerphone.
The MCD100 is a high quality USB speakerphone that is optimised for use with UC audio applications. By default, the MCD100 utilises its
internal microphone and loudspeaker providing high quality communication for all your VoIP applications.
Please refer to the safety instructions in the Quick Start Guide for important product safety information prior to installation or use of
the product.
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Contents
Plantronics MCD100 USB Speakerphone
1 Package contents and features...................................4
1.1 MCD100 USB speakerphone .................................. 4
1.2 MCD100 USB speakerphone features .................... 4
2 Set-up..........................................................................5
2.1 Connecting USB speakerphone to PC .................... 5
2.2 External speakers/headphones connection ............ 5
3 Using your MCD100 USB speakerphone....................6
Volume up, volume down, mute .................................... 6

Plantronics MCD100 USB Speakerphone 4
1.2 MCD100 USB features
Speakerphone
USB cable
(mini B to A)
1Package contents and features
Volume down
Mute key
Volume up
USB port
3.5 mm stereo jack
(for external speakers
or headphones)
1.1 MCD100 USB speakerphone

Plantronics MCD100 USB Speakerphone 5
2Setup
2.1 Connecting USB speakerphone to PC
NOTE When the MCD100 is installed, it becomes the default
audio device in your computer. You can set preferences manually
in the Windows® operating system through the Sounds and
Audio Devices option in the Control Panel.
1Connect the USB cable to the USB port on the back of
the speakerphone.
2Connect the other end of the USB cable to the USB port
on your computer. A blue light will illuminate through the
buttons on the top of the unit indicating the speakerphone is
powered on and operating.
2.2 External speakers/headphones
Connection
The MCD100 is equipped with a 3.5 mm stereo headphones/
external speaker connector. Connecting your computer’s
loudspeakers (or headphones) to the MCD100 will disable the
MCD100 speakerphone’s internal speaker. Your computer’s audio
(music, VoIP communication or any other) will be passed through
to the external speakers, maintaining the same sound quality
your computer can deliver. While the internal speaker is disabled
when using this connection, the MCD100 speakerphone’s internal
microphone is still functional.

Plantronics MCD100 USB Speakerphone 6
3Using your MCD100 USB speakerphone
Volume up, volume down and mute
1Press the down arrow (left button) to decrease the
speaker volume.
2 Press the up arrow (right button) to increase the speaker
volume.
NOTE A prolonged press of the volume buttons will increase
or decrease the volume several levels until you stop pressing
the button. The MCD100 will beep when a volume up button
or volume down button is pressed and a series of beeps when
a prolonged press is performed. Each beep signals one level of
volume increase or decrease.
3 Press the microphone icon (middle button) to mute
the microphone. A blue light will flash indicating that the
microphone is muted.
4 Press this button again to unmute. The blue light will
become solid indicating the microphone is unmuted.

Plantronics, Inc.
345 Encinal Street
Santa Cruz, CA 95060
United States
www.plantronics.com
For product support, contact us at www.plantronics.com/support.
© 2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, MCD100 and Sound Innovation are trademarks or
registered trademarks of Plantronics, Inc.
81584-16 (05.09)