THOMSON grass valley XtenDD, Manual

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7. Installing External Devices
7 - 9 Planning and Installation - Rev. 0 / 04.2002
7.1.1.8 Tally Signaling
The DVEous offers a so-called ”intelligent” tally. This means that it is signalled
which of the input signals is part of the output signal. When the input signals of the
DVEous come from a
switcher’s AUX bus an appropriate setup and cab-
ling can be made to provide the correct on air tally signalization. The DVEous uses
the GPI OUT port to feed this signals to the switcher. The appropriate outputs must
be wired with the respective tally inputs of the MI-3040 interface.
Since the DVEous does not provide tally inputs (to receive the tally output of the
switcher) the
combine the internal tally information with the received infor-
mation from the DVE. The video sources are signaled, if the DVE received tally and
the DVE transmit tally.
REMOTE SETUP OF THE SYSTEM MENU:
Select GPI Outputs : Mode in position Tally or Mode 1
There are two modes for the GPI outputs that you can select in the remote setup
menu. Mode1 assigns functions to the 12 GPI outputs as follows:
D
GPIs 1 to 4 - Programmable on a keyframe-by-keyframe basis in the Event
menu. You can fire any combination of these four GPI outputs on any keyframe
of the global timeline.
D
GPIs 5,7,9 and 11 - These GPI outputs provide front/back switch tallies for
each of the four DVE channels (5=Ch1A, 7=Ch1B, 9=Ch2A, 11=Ch2B). A high
output indicates that the channels “Front” side is visible, while a low output indi-
cates that the channels “Back” side is visible. These outputs are useful for con-
nection to a switcher that accepts Front / Back toggles for switching Aux Bus
outputs. By allowing the switcher to perform Front / Back switching, only two
switcher Aux outputs are needed to feed each twin channel (1A/1B or 2A/2B).
D
GPIs 6, 8 10 and 12 - These GPI outputs provide on-air tallies for each of the
four DVE channels (6=Ch1A, 8=Ch1B, 10=Ch2A, 12=Ch2B). An on-air tally is
low whenever that channel is visible on the DVEous main output, and high
otherwise.
When set to TALLY mode, the 12 GPI outputs function as on-air tallies for the 12
inputs. An on-air tally is low whenever that input is visible in the DVEous main out-
put, and high otherwise.
For details refer to your DVEous Technical Guide.
Menu INSTALL / E-BOX / DVE:
Tally Extern
Setup at the DVEous
Setup at the