Sonifex CM-CU1, Руководство пользователя

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1 CM-CU1 Rear Panel Controls & Connections
CM-CU1 Rear Panel Controls & Connections
The rear panel of the Commentator Unit carries the five return audio inputs
and commentator, talkback and mix output connectors. Four additional
controls are located on the rear panel; On Air Lock, Talkback Gang, Limiter
and Test Tone.
On Air Lock Controls
The On Air Lock prevents the commentator’s ON AIR button from being
deactivated accidentally. When the On Air Lock is enabled, the on air
channel can only be deactivated by first pressing the pushbutton located
next to the On Air Lock switch. A slot in the rear panel makes locating the
On Air Lock pushbutton easy; simply position your finger in the slot in the
rear panel, indicated by the “ON AIR LOCK” text on the top panel, then slide
your finger down the slot until you reach the pushbutton.
Fig 1-5: Rear Panel View Of CM-CU1
Talkback Controls
The TALKBACK GANG switch links the operation of each of the
commentator’s TALKBACK A, B, C and D buttons. When this switch is on,
pressing one of the TALKBACK buttons automatically activates the other
TALKBACK buttons. Up to an additional 12dB of gain is available on all
talkback outputs, if required. This is applied prior to the limiter and is
adjusted using the rear panel GAIN potentiometer.
Limiter Controls
The LIMITER ON/OFF switch and LEVEL potentiometer control the limiter
that is applied to the Mix Output. The potentiometer sets the threshold
level at which the limiter becomes active, and has a range of between
-13dB to the maximum output level of +25dB.