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User Guide and Technical Manual
The ODU button allows you to view with which RF ODU
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is communicating.
There are a few con
fi
gurations of ODUs which can be selectable. A rear panel
ODU switch is provided to set the
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IDU to the correct voltage and IF to
communicate with either legacy [MTX 12V] or
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ODU [NST 48V] type. You
cannot hook up multiple
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ODUs to the
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IDU.
WARNING:
If the ODU the switch is placed in the wrong position or if you
change the ODU type without changing the switch position and restart the IDU
this may result in damage to the ODU and inability to communicate with the ODU.
Toggle Mode RF Band Button Behavior
If the toggle switch is in
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ODU mode [NST 48V], and the
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ODU is
dual band, the RF Band button can be used to specify which band is currently selected.
The button shows the RF Band covered by the current selection [2 GHz, 4 Ghz, 7L GHz,
7U GHz, 13 GHz]. If the toggle switch is in
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ODU mode and the
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ODU is single band, the RF Band only displays the status of the RF band and will not act
as a selection button. The button shows the RF Band covered by the current selection [2
GHz, 4 Ghz, 7L GHz, 7U GHz, 13 GHz]. If no ODU is currently detected, then RF Band
button displays NO ODU.
Legacy Toggle Mode RF Band Button Behavior
If the toggle switch is in Legacy ODU mode [MTX 12 V], the RF Band button alternates
between using ODU 1 and ODU 2 outputs on the back of the IDU, regardless of which
ODUs are connected to those ports. When ODU 1 is selected, 70 MHz IF and FSK is be
directed to the ODU1 port, and 12 V is sent to ODU 1 power connector. When ODU 2 is
selected, 70 MHz IF and FSK is directed to ODU 2 port, and 12 V is sent to ODU 2 power
connector.
If an ODU is disconnected, NO ODU is shown in the OLED button, the 16x2 Frequency
display is unlit, the button next to it is lit red, and an alarm displays. If the ODU is
reconnected, the state of the IDU resumes operations. Pressing the PA Band button
switches to the other available ODU port however, the disconnected ODU is not be
selectable.
The RF Band button displays the ODU the RF Band covered by the current selection
on the bottom line [2GHz, 4Ghz, 7L GHz, 7U GHz, 13GHz]. The 16x2 Frequency also
displays the frequency band. If both ODUs are the same head type and frequency band,
the RF Band button toggles between ODU 1 and ODU 2 ports but displays the same
band information on the button. If no ODU is currently detected, then the RF Band button
displays NO ODU.
