Chapter 3 Operation and Control
HDC6831N HD-SDI Downconverter / Demultiplexer /Audio and Video Monitor 15
3.5 LED Indicator
Tab. 3-4
LED Indicator Function
Item
（
color
）
Description
HD
（
green
）
On: video input signal is in HD-SDI standard
SD
（
green
）
On: video input signal is in SD-SDI standard
LOCK
（
green
）
On: input signal is locked and can be received in normal
VALID
（
orange
）
On: not support the current video format
Off: support the current video format
3.6 Setting Jumper
Tab. 3-5
Setting AES1 at balanced or unbalanced digital audio output
BLANCE
UNBLANCE
JP02 Closed
Open
JP03 Open Closed
JP04 Open closed
Note: please choose AES B1+ as output when setting
UNBLANCE
Table 3-6
Setting AES2 at balanced or unbalanced digital audio output
BLANCE
UNBLANCE
JP05 Closed
Open
JP06 Open Closed
JP07 Open closed
Note: please choose AES B2+ as output when setting
UNBLANCE
Analog audio outputs are all in balanced mode. With regard to AES/EBU digital audio output, users
can select audio signal, balanced or unbalanced.
Please set jumpers at BLANCE when outputting balanced audio referring to Tab. 3-5 and Tab. 3-6,
and then connect AES terminal “+”, “-“ and “gnd” of DB15 with 3-pin RCA audio port.
Please set jumpers at UNBLANCE when outputting unbalanced audio referring to Tab. 3-5 and Tab.
3-6, and then connect AES terminal “+” and “gnd” of DB15 with BNC audio port.