D i g i g r a m
16
APPENDIX A: BOARD LAYOUT
1
2
4
7
3
Audio In
Channel
selection
1
Audio Out
Channel
selection
2
5
6
Nominal
input level
(ES220
uniquement)
7
Light
Emitting
Diode
3
IN/OUT
selection
(ES220-L only)
5
End of bi-
directional
loop
6
Factory setting –
Do not modify!
Extraction
Audio
Amont/Aval
4
The jumpers marked
show the default positions for the normal mode of
operation; this adjustment MUST NOT be modified. These jumpers are
reserved for maintenance purposes.
