Grass Valley Performer SD - Manual (Page 83)

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Control Panel Reference
Source Offset
This is the address of the sources controlled by the control panel.
Segments 1, 2, and 3 of switch S1 determine source offset. The
switch segments operate in binary fashion (1 most significant; 3
least) to select source offsets from 0 to 7. When a source offset of 0
is selected, Performer sources are numbered from 1 through 10. If
a source offset of 1 is selected, Performer sources are numbered
from 11 through 20. When a source offset of 2 is selected,
Performer sources are numbered 21 through 30. This sequence
continues through a source offset of 7 and sources numbered from
71 through 80.
The following table lists S1 switch settings and the resulting
source offset. An “O” indicates an
open segment; a “C” indicates a
closed segment.
Table 2-9. Performer Source Offset
Sources S1 #1 S1 #2 S1 #3
1-10 O O O
11-20 O O C
21-30 O C O
31-40 O C C
41-50 C O O
51-60 C O C
61-70 C C O
71-80 C C C