OSEE ADC6820N, User Manual, Page: 12 / 23

DC6820NXX AUDIO A/D CONVERTER USER MANUAL
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Setting Jumper
There exist four 3-pin jumpers, and the following table gives their definition.
Tab. 2-3
Description of ADC6820Nxx Jumpers
Item Description
JP15
LOCAL/FRAME.
LOCAL: a external synchronized signal input
FRAME: The synchronized signal is provided by 6800 Frame
the default setting is local
JP17 （ TERMINATION ）
ON/OFF
Only valid for DATA IN
（ refer
to Tab. 1-2 ）
When setting JP17 at ON, you need to connect BNC with 75 Ω
termination.
When setting JP17 at OFF, you need not to connect BNC with
75
Ω termination.
the default setting is on.
JP19
REF/COMP REF: synchronized signal input
COMP: reserved
you must set JP19 at REF (Please don’t change the default
setting).
JP20
DARS/BB DARS: AES/EBU digital audio synchronized signal input
BB: analog black burst synchronized signal input
JP13 ， JP14
BAL/UNBAL
BAL: AES/EBU balanced digital audio synchronized input
UNBAL: AES/EBU unbalanced digital audio synchronized
input
JP16
DATA/ SDI DATA: audio tracking signal input
SDI: reserved
you must set JP16 at DATA (Please don’t change the default
setting).
JP18
(LOC/RMT)/LOCAL LOCAL: local control
LOC/RMT: local and remote control
used to choose control mode, the default setting is LOC/RMT.
JP1, JP2, JP3, JP4, JP5, JP6,
JP7, JP8, JP9, JP10, JP11, JP12 Select the gain of audio outputs
16dB~28dB adjustable.
When jumpers JP1~JP12 is unconnected, the gain is 16dB.
Tab. 2-4 gives an example for jumper-setting:
Tab. 2-4
Setting a Synchronized Signal Input via Jumpers
Item Description
Choose a common synchronized
signal provided by 6800N Frame
Set JP15 at FRAME
Choose a synchronized signal
provided by back connector
Set JP15 at LOCAL, JP19 at REF, and JP20 at BB