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Talkback and Oscillator
T
alkback Connections
The C100 console contains a built-in talkback microphone and amplifier. In addition, a second input is available
for connection to an external dynamic microphone. This input is mixed with the internal T/B mic and the
combined signal is available via an XLR connector on the audio interface panel beneath the console. This signal
s
hould be connected to an analogue input circuit in the Centuri processor. The circuit chosen can then be
assigned as the talkback source via the console’s routing.
The gain of each mic signal can be independently adjusted. Access to the trim controls is from beneath the
console on the console interface panel.
The external mic input is via a 3-pin XLR female labelled ‘Ext T/B Mic In’.
The mixed T/B output is via a 3-pin XLR Male labelled ‘Talkback Output’.
See Appendix C for connector pinouts.
Oscillator Connections
The C100 system includes an inbuilt software oscillator. This can be assigned to any relevant output without
additional cabling.
Alternatively, an external oscillator (either analogue or digital, mono or stereo) may be used. In this instance one
or two circuits should be allocated on an input card, these can then be assigned in software.
Installation Wiring
Section 5
Page 43