Control Unit for Conference System
The control unit is the center of the discussion system which controls the microphones of the chairman and delegate units as well as connects to other audio input and output. It also supplies the power for the CU itself, and up to 50 chairman and delegate units.
VoltageVAC100-240~, 50/60Hz
Current consumptionMAX 0.9A(100VAC) / 0.3A(240VAC)
DC supply to contribution units±15V
Line, telephone coupler and insertion in/outputs (unbalanced)
Input sensitivity-14dBV/+11dBV (nominal/maximum)
Input impedance33KΩ
Output level-14dBV/+11dBV (nominal/maximum)
Output Impedance500Ω
Recorder in/output (unbalanced)
Input sensitivity-20dBV/+5dBV (nominal/maximum)
Input impedance47KΩ (for L & R channel)
Adjustment-20dBV/+5dBV(nominal/maximum)
Output level+0/-30dBV
Output Impedance500Ω
External microphone input (XLR(F) balanced)
Input sensitivity-56dBV
Adjustment.+6dBV/-6dBV(nominal/maximum)
Phantom supply12V+/-1V, 2*680Ω (±2%)
System limits Number of delegate/chairman units connected to one control unit
Maximum in total50
Maximum per trunk output25
Maximum trunk length using CS-1standard cabling: 100m
