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FLINT
V1.1
A.3 Control Panel Internal Operation
The Broadcast Pix physical panel is usually under the control of the Broadcast Pix Server.
This appendix describes this standalone behavior, and some of the engineering settings
that are also accessible from it.
Sequence of Events
When the panel powers up, it attempts to connect with the Server at its default IP address
of 192.168.53.250. If it fails to find either a Server with that address or a Broadcast Pix
Switcher application open to a show, then it asks the operator what it should do. It does
the same thing if a problem develops during normal operation.
During normal operation the Server communicates with the panel every 5 seconds, even
if there is no other traffic, and the panel always responds. These keep-alive ping
messages let both the panel and the Server know that the situation is normal. A
watchdog process in the panel software notices if these signals stop. If they do, then the
TCP/IP connection to the Server is closed, the panel buttons are cleared, and three
choices are offered to the operator, which are displayed on the PixButtons in the upper
right corner of the panel. The control panel display is also updated to notify the operator
what is going on.
There is also a way an operator can force this condition. Select the [Mem/Setup] device
button, then select the [Shift] button and then press the right most PixButton of the three
in the top right corner of the control panel, which will be displaying, “Go Off Line”. This
causes the panel to close the communications link to the Server.
The three choices available in this off-line state are:
1.
Join the Show
to connect (or reconnect) with the Server & software
2.
Fail-Safe
Not used on Flint Systems
3. Panel Setup & Test bring up an array of additional sub menu options
A.3
Fail
Safe
Join
the
Show
Panel
Set-up
&Test