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MCS 20 – MCS 223 Microphone Unit
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FiFo (first in - first out)
• The “FiFo” operating mode is selected with the button combination “Free” ቯ and “Requ” ተ. Both LEDs of the
“Free” + “Requ” buttons will illuminate.
• When another microphone unit is activated, the microphone unit of the current speaker is deactivated. The limit in this
operating mode is 01.
• In the standard setting this function also refers to the chairman microphone unit. If the chairman microphone unit
is to be excluded partly or completely from this function, the values of this function have to be set to 00 in the
programming mode (refer to chapter 3.3.8 “Programming mode”). In the standard setting both functions are set
to 01.
For function 14 - Value 00 applies: MCS 223 does not turn off other microphone units.
For function 15 - Value 00 applies: MCS 223 is not turned off by other microphone units.
• The chairman is also allowed to speak in this operating mode at any time by holding down the “Prior” button.
3.3.3 Priority function (Prior)
• By holding down the “Prior” button ቨ the chairman is allowed to speak at any time.
• If the microphone was not activated, it will be turned on as long as the button is held down. All activated micro-
phones are temporarily muted (their LED rings are flashing) and turned on again, when the “Prior” button ቨ is
released.
• The button can be programmed as a “latching” button (press the button briefly for speaking and afterwards press
the button again) or “Auto-OFF” (after a pause of approx. 2 seconds the microphone is automatically turned off).
Furthermore, the “Prior” button can be linked with the microphone button to activate the priority function also
with the microphone button ቦ.
3.3.4 Clear function
• Press the “Clear” button ቩ to clear all activated delegate microphone units. Some delegate microphone units can
be configured so that they cannot be cleared.
• The “Clear” button ቩ can be held down for a while to avoid activations of microphones.
• This function can be reprogrammed.
3.3.5 How to adjust the limit
• With the “Limit” buttons ቪ you can determine the number of speakers, who are allowed to speak simultaneously
(“Free” and “Voice” mode) or who may enter a request-to-speak (“Request” mode). This option can be used for
all three operating modes.
• The chairman microphone unit can be turned on at any time independing of the operating mode and the selected
limits.
• In the “FiFo” operating mode (“Free” + “Requ”) the limit is set to 01.
• The limit refers to the activated operating mode, which is displayed by the illuminated LED in the “Mode” field.
Press the “Clear” button briefly.
(Display is briefly cleared to confirm)
Hold button down, until two dashes (- -) are
displayed.
All activated microphone units are cleared.
Registered microphone units are not cleared.
All activated and registered microphone units are
cleared.