Grass Valley XtenDD DD - Manual (Page 119)

6. Tally Signalling
6 - 1 Planning and Installation - Rev. 3 / 04.2005
6. TALLY SIGNALLING
6.1 INTRODUCTION
The tally signalling for the XtenDD works via serial communication line with the op-
tion to hook a hardware device onto that (those) serial line(s) to provide tally for
those cases where it is not connected to a control system, e.g. Jupiter from
THOMSON. For that optional hardware device the already existing Tally Distributor
MI-3040 was chosen. This device is driven via the serial MPK protocol and has 40
opto-isolated inputs and 40 relay outputs. Because the maximum needed amount
of inputs and outputs is greater than 40 more then one MI-3040s are needed.
6.2 OPERATION MODES
Red Tally Normal On-Air Tally
Yellow Tally Signal selected to be OnAir with CUT or AUTO.
Depends on Red Tally and switcher state.
Green Tally Secondary independent tally path that works like Red-Tally.
It simply signals that the output and all sources that
compose the output image are used somehow.
DD-Application A set of allocated resources that form a ’switcher’
for a specific task.
The XtenDD has five Tally Systems:
1. Tally Overall (not alloctable)
2. Tally 1
3. Tally 2
4. Tally 3
5. Tally 4
As Tally 1..4 can be allocated by an XtenDD application, the specific tally systems
are only related to resources that are allocated to that application (AUX1 ...15,
M/E1, M/E2, M/E3, P/P...).
Each Tally System has two modes to operate with. One mode for controlling up to
nine MI-3040 Tally boxes, and the other one to emulate up to nine MI-3040 Tally
boxes. The second mode is used to connect the XtenDD system direct to a Jupiter
facility control system without external MI-3040 devices.
For each ’Tally color’ three (two) boxes are possible - and needed if the switcher
is fully equipped with 90 inputs. When the standard 18 inputs are equipped and
Monitor Tally for the Aux buses is not needed only one box per color is needed.
Terms
Tally Modes