GAI-Tronics ITR1000-001 Model ITR1000-001 Basic Tone Remote Deskset with Line Select User and Installation Manual - Manual (Page 13)

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Operation
Operational Description
The ITR1000-001 Basic Tone Remote Desk Set provides radio system control from a remote location.
The desk set control tones are sent to the tone remote adapter through a private or leased line, and are
used to control radio functions such as transmit, channel changes, and monitor. The receive audio from
the radio system is sent to the desk set from the radio via the same private or leased line.
The
F1
,
F2
, and
F3
buttons allow the selection of three different base station frequencies depending upon
the capabilities of your radio and the tone remote adapter. The desk set is compatible with tone remote
adapters that accept standard EIA tone keying sequences.
Front Panel Button Operation
F1, F2, and F3 Frequency Buttons
The frequency buttons are normally used to change channels on the radio. The actual use and function of
these buttons may be different depending upon your radio’s capabilities. Whenever a frequency button is
pressed, the button illuminates until a different frequency button is pressed.
F4/LS Button
In basic operation, the
F4/LS
button provides control of a fourth frequency. In Line Select operation, the
F4/LS
button functions as the “line select” button. Pressing the button toggles selection between line 1
and line 2. If the button is illuminated, line 2 is selected; if extinguished, line 1 is selected. This
function must be enabled by moving SWA-3 to the ON position.
VOLUME Up/Down Buttons
Press the
VOLUME
Up or
VOLUME
Down buttons to adjust the local speaker volume. They are also used
as programming function keys.
CONTROL Button
The
CTL
button is used in conjunction with the
VOLUME
Up and Down buttons to manually control the
local speaker. Press and hold the
CTL
button, and then press the
VOLUME
Up or
VOLUME
Down button.
Pressing the
CTL
and the
VOLUME
Down buttons mutes the local speaker, and the selected frequency
button flashes to alert the user that the speaker is muted. The speaker can be unmuted by pressing the
VOLUME
Up,
VOLUME
Down, or
CTL
and
VOLUME
Up buttons.
Pressing the
CTL
and the
VOLUME
Up buttons enables the local speaker while the handset is off-hook.
When the handset is placed back on-hook, the local speaker again operates normally– that is, it will be
disabled whenever the handset is taken off-hook.
IC (Intercom) Button
Press the
IC
button to communicate between desk sets without transmitting over the radio. When the
IC
button is pressed and held, microphone audio is routed to the line without activating the radio transmitter.
Other tone remote desk sets on the same line will hear the audio automatically.