Sonifex CM-CU21, User Handbook Manual

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CM-CU21 Commentator Unit User Handbook
3
CM-CU21 COMMENTATOR UNIT
M
AIN P
ANEL C
ONTR
OLS & INDIC
A
TORS
2
2 Main Panel Controls & Indicators
Fig 2-1: Top Panel View Of CM-CU21
The main or top panel of the Commentator Unit is split into four areas. To the left and
right are the main commentator position controls, with the third commentator/guest
position controls located in the centre, below the power indicator, mix output limiter active
indicator and the PPM meter display.
On Air Buttons
The On Air buttons route the commentator microphone input signal to the corresponding
Comm output and to both of the Mix Outputs, where it is mixed with all other active
commentator signals. These buttons have a latching action; press to activate and press
again to deactivate. When an On Air control is active, the button illuminates red and the
corresponding open collector driver output on the GPIO port is activated.
Talkback Buttons
The Talkback A and B buttons allow either of the two main commentators’ microphone
signals to be redirected to the corresponding Talkback output. The associated Comm
output is muted and the commentators’ signal is removed from the Mix Outputs. The four