Albalá Ingenieros | Manual
IPA3000C01
SELECT:
Pushbutton. A sustained press of this button changes the operating
mode.
When the unit is in manual mode a brief press of this button changes the
input selection.
Changes made with this pushbutton are stored in non-volatile memory
and will be recalled in case of a power supply failure.
In the ALARM box:
STAT. CHG.:
Red. This LED blinks to indicate that one of the inputs has changed from
normal status to an error or vice versa.
SEL. CHG.:
Red. This LED blinks to indicate that the input selected has changed.
RESET:
Pushbutton. When this button is pressed any changes in the error status
or selection of the inputs are recognized and the corresponding LEDs are
turned off.
4.2. Configuration from the front panel
The IPA3000C01 has three operating modes: automatic, semiautomatic and manual.
The operating mode is selected by pressing the SELECT button in the MODE box on the
front panel. Pressing the button cycles through the modes in the following order:
automatic mode, semi-automatic mode and manual mode.
4.3. Functional description
4.3.1. Operation in automatic mode
In this mode the IPA3000C01 automatically selects the highest priority, error-free,
active input at all times. The priority of each input is set with a parameter value
ranging from 0 to 3, where 0 is the highest priority and 3 is the lowest. However,
priority can be assigned to the possibility of seamless switching, such that if an error
is detected in one input the unit will switch to the next highest priority input that is
capable of seamless switching as opposed to simply selecting the next highest priority
input.
An error status is produced when no signal is present at a given input, when the
frame synchronization or megaframe synchronization (megaframe synchronization
only in DVB-T mode) is invalid or when the corresponding GPI for the given input is
connected to ground.
When an error at the input is produced the IPA3000C01 will only switch to a lower
priority input when that input is error-free.
In order to avoid unnecessary switching a recovery time parameter can be set that
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