Orbis – Operation
20
Connection of microphone units/system units without redundancy
The microphone units/system units are connected in one or two lines to the control unit. As cables
use standard CAT5e cables (S/UTP, min. AWG 26 diameter or better). The audio transmission, power
supply and control is made via one cable. The system capacity is achieved by the economical Orbis
MU microphone unit, which is less than 1 watt when operated and at maximum volume.
WARNING: Should the LEDs flash on the connections for the microphone units, there is a defect e.g.
short circuit in the cable or microphone unit. In this case, please check if all cables have been
correctly connected or replace the cable/microphone unit.
Connection of microphone units without redundancy
• The microphone units/system units are connected in one or two lines to the control unit.
• Connect the first microphone unit/system unit to the connection for microphone units line 1 .
Connect the second microphone unit/system unit to the first one, the third to the second one and
so on.
• Connect the first microphone unit/system unit to the connection for microphone units line 2 .
Connect the second microphone unit/system unit to the first one, the third to the second one and
so on.
• At maximum you can connect 50 microphone units/system units per line so that a total of 100
microphone units is available.
Note: The max. number of microphone units also depends upon the cable type and cable length so
that the actual number of microphone units to be operated might be less than 50 or 100.
CAUTION: When using this kind of connection, there is no redundancy, i.e. if one microphone
unit/system unit fails, the whole line fails after the interruption, but the microphone units/system
units will still work before the interruption.
max. 50 microphone units in line 1 max. 50 microphone units in line 2
Orbis CU control unit
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