PT 5780 DVB-T Modulator
ProTelevision Technologies
Operating Instructions
Instruction Manual
Revision 3.11
4-7
4.3.3.1
Description of Status Display Windows
Status Window ‘a1’ – The Input (or High Priority Input in the case of a hierarchical
system) Status Window
The example given here is for a hierarchical system:
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INPUT HP: A ASI / 204 OK
wv8
E
Ref:Ext a1
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Status Window ‘a2’ – The Low Priority Input Status Window
This window is only available when the hierarchical version of the modulator is in use. However
if the hierarchical mode is set to “NONE” through the menu TRANSMISSION – MODE –
HIERARCHICAL MODE, the following window is displayed, as there has been no hierarchical
alpha parameter configured:
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INPUT LP: Non Hierarchical Mode
wv8
E
Ref: Int a2
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However if the hierarchical alpha parameter is set to one of the hierarchical modes (alpha 1,
alpha 2 or alpha 4), the following window is displayed (assuming that input B has been selected
as LP source):
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INPUT LP: B ASI / 204 OK
wv8
E
Ref:Int a2
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The Input status windows show the data packet size, the input signal type and the source of the
10MHz system reference clock (Internal or External)
Status Window ‘a1’ – Signal loss vs. Auto Substitute function
When the modulator cannot detect an input signal and the auto substitute function is disabled,
the following input status window appears (assuming that input A signal source is lost in non-
hierarchical mode):
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INPUT : A ASI No Sync
wv8
E
Ref:Int
a1
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Note: “No Sync” flashes.
If the input specified as primary source in non-hierarchical mode is lost when the auto substitute
function is enabled, the following input status window appears (assuming that the input
specified as secondary source (B) is available):
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INPUT Prim: A ASI No Sync
wv8
E
Ref:Int Sec: B ASI /204 OK <Actual a1
----------------------------------------
Note: “No Sync” flashes.
Summary of Contents for PT 5780
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