4 Line-Up Tone Mode
6
Line-Up Tone Mode
The CM-TB8 has a built in Test Tone generator which selectively routes
a line-up tone of 1kHz at 0dB to all talkback outputs to assist channel
identification and cabling checks. There are two test tone modes, manual
and auto.
To enable line-up tone mode:
press and hold the rotary control and the
group talk button and channel 1 and 2 talk buttons for 5 seconds. The group
talk button will flash amber to indicate the line-up tone mode has been
entered. The rotary control, group talk button and talk buttons can now be
released. By default, manual mode is enabled.
To switch between manual and auto tone modes:
turn the rotary control
one position in either direction.
In manual line-up tone mode, press the talk buttons on each channel to
route test tone to the corresponding talkback output. Each talk button will
illuminate amber when pressed. When a button is released, the tone on
that talkback output will be muted.
In auto line-up tone mode, each of the eight talkback outputs are
automatically identified by a unique number of short tone bursts, lasting
0.25 seconds each, which are repeated every 5 seconds. Each talk button
flashes amber to indicate when tone is being routed to that channel, and
the number of pulses corresponds to the channel number.
The 4W IN inputs function normally and any signal present is still routed to
the loudspeaker and headphone monitor outputs. This could be useful in
allowing the user to receive instructions on which channel to output tone to
when using the test tone in manual mode.
To exit the line-up tone mode:
press the rotary control once. The unit will
then return to normal operating mode.
