ZETRON 4000 Sereis Manual page 22

Communication control system operation
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Operating Button-Based Consoles
All Mute (ALL MUTE)
Pressing this button causes all unselected channels to mute (be reduced in level). Pressing
this button again causes the mute to cancel, returning all channels to their previous audio
levels. However, if this mute has a time period programmed for it (optional), it eventually
cancels itself. The red LED of this button, as well as all unselected channels' mute
buttons, is illuminated while ALL MUTE is invoked.
Simultaneous Select (SIMUL-SELECT)
The SIMUL-SELECT button allows selection of more than one channel at a time. To
perform this, press and hold the SIMUL-SELECT button, then with the other hand, press
the SELECT/INSTANT SELECT buttons of the desired channels. When all of the
desired channels have been selected, release the SIMUL-SELECT button. Whenever
more than one channel is selected, the red LED on the SIMUL-SELECT button is
illuminated. To cancel the simultaneous selection, press the SELECT/INSTANT
SELECT button of a single desired channel.
Group Select (<name> SELECT)
A single press of the GROUP SELECT button selects a predefined set of channels. There
may be several GROUP SELECT buttons on a console. The GROUP SELECT button
is usually labeled with the name of the group it selects, such as FIRE SELECT or
POLICE SELECT. While the group is selected, the red LED on the appropriate GROUP
SELECT button is illuminated. The group selection is canceled by pressing any channel's
SELECT/INSTANT SELECT button.
Group Instant Transmit (<name> XMIT)
A predefined group of channels may be simultaneously transmitted on by pressing and
holding a GROUP INSTANT TRANSMIT button. Doing this does not change the
current channel selections. While a GROUP INSTANT TRANSMIT button is pressed, its
red LED is illuminated. There may be several GROUP INSTANT TRANSMIT buttons
on a console. A GROUP INSTANT TRANSMIT button is usually labeled with the name
of the group it transmits on, such as Fire Xmit or Police Xmit or APB.
Patch Transmit (PATCH XMIT)
Pressing and holding this button transmits on all of the channels that are currently patched
on your console, even if multiple Patch Paths are set up. This button only functions when
there is no call activity on any of the patched channels.
Priority Transmit (PRI'TY XMIT)
This button operates like the TRANSMIT button but allows you to override any other
console transmitting on your selected channel. The PRIORITY TRANSMIT button only
functions on a supervisory console.
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025-9535L

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