Beyerdynamic MCW-D 100 Bedienungsanleitung Seite 51

3.4 Powering / Operating Time
Rear view microphone unit
(2)
3.5 Powering with external
CA 2455 Power Supply Unit
Rear view microphone unit
(1)
3.6 Powering MCW-D 1641 / 1643
(1)
(1)
•
The microphone units have an integrated rechargeable battery allowing
an operating time of at least 10 hours in disussion mode.
• As soon as the capacity is too low for satisfactory operation, the operating
control LED (2) will flash.
• The remaining time of operation is around 30 or 60 minutes, depending
on the configuration with the MCW-D Editor software.
• The decreasing battery voltage is also signaled by the MCW-D 100 control
unit at the RS 232 socket and can be evaluated by an external media control
system.
• The MCW-D microphone units can be powered with the CA 2455 external
power supply unit which can be connected to the multi-function socket (1).
• If another power supply unit is to be connected, the DC-voltage should be
18 V DC (±0.5 V), current max. 180 mA, residual hum < 20 mV AC.
Important:
• Connect and disconnect the external power supply only when the
microphone unit is switched off.
• If the microphone unit is powered by the DC-power supply first
and when the power supply is switched off, the microphone unit
will be powered by the integrated battery until it is nearly empty.
The microphone unit switches off automatically to avoid an
exhaustive discharge.
• The microphone unit is not powered automatically by the CA 2455
power supply. After having connected the power supply the micro-
phone unit must be switched on.
• The MCW-D 1641 / 1643 system units are powered via DC voltage
(between 14 and 20 V) that is connected to the terminal strip (1).
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