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6. Installing System Accessories
6 - 10
Planning and Installation - Rev. 0 / 04.2002
6.1.6
TALLY READY INPUT
The
Tally ready function is used to generate an internal OnAir signalization without
using external tally wiring. Two cases are imaginable:
D
No tally protocol is installed within the environment settings
:
In this case, the TallyOverAll itself assumes PP/PGM-RED is OnAir and it gen-
erates only this default tally for its panels.
D
One or more tally protocols are installed within the environment settings:
Now the Tally Ready is given individually from the MI-3040 (also for TallyOver-
All).
- If the MI-3040 is not connected, the corresponding tally is not calculated.
- If the MI-3040 is connected, the corresponding tally is calculated according
to Tally Ready input bit.
ON = Tally inputs according to input wiring,
OFF = PP/PGM-RED is assumed as OnAir
6.1.6.1 Description MI-3040 Tally Box
Reset
Gen.
Osc.
3.6864MHz
RESET
68HC705
PORT A
PORT B
PORT B
RS-422
Driver/Receiver
TO MPK
40
Opto-
Isolators
40
Relays
Relay
Interface
LCA
MI-3040R
Optical status
interface
LCA
MI-3040S
Data/Address Bus
Control
The MI-3040 interface performs two functions. It provides 40 switch closures and
monitors 40 isolated status inputs. It interfaces with a
using MPK protocol.
Block Diagram
Содержание grass valley XtenDD
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