Important - Beyerdynamic MCW DIGITAL 200 Notice D'utilisation

2. Installation of optional PCBs
for 1 additional
transmitting/receiving
channel
2.1 How to install additional Transmitting / Receiving Channels
When more than four participants (for ex. 3 delegates and 1 chairman or 2 delegates and 2 chairmen) are to speak at the
same time, you need more transmitting and receiving channels. Using the CA 2450 PCB you can extend the MCW-D 200 control
unit with another transmitting/receiving channel. Up to three CA 2450 PCBs can be integrated into the MCW-D 200.
As a standard 5 transmitting/receiving channels can be equipped. They are 1 data communication channel, 4 voice channels
(3 delegate and 1 chairman microphone unit can be switched on) and 5 aural channels (original sound for loudspeakers of the
microphone units and for 4 foreign language channels in interpreting applications). Refer also to drawing 2.
With the additional PCBs up to 7 voice channels and 8 aural channels are available. If the aural channels are to be used for
interpreting applications, the CA 2451 PCB must be installed (refer to chapter 2.2)!

Important:

• Before you install the PCB, you must disconnect the MCW-D 200 control unit from the mains.
Precautions for ESD Protection
• Electronic components are at risk towards electro-static discharge (ESD). In order to avoid destruction or damages
caused by ESD the following precautions are necessary:
• People who handle components that are at risk towards ESD, should be earthed (e.g. by wearing a homogeneous
tape around the wrist).
• Choose a suitable operating area and avoid carpets and other coverings on the floor or table that can produce
static charges. The operating area should be free from objects that can preserve or produce static charges.
• Components that are at risk to ESD have to be handled carefully. Avoid rubbing over any surfaces, touching of
pins that are sticking out, and touching of printed lines. Hold a component or a module at the edges only.
• Components at risk must be transported and stored in anti-static or conductive packaging.
46
for multilanguage
or interpreting
CA 2450
applications
CA 2451
CA 2452
for the connection of
digital sound sources
such as digital mixing
console