Functional Description
MEN Mikro Elektronik GmbH
55
20BL50S00 E2 – 2014-12-10
3.9
HD Audio (Optional)
As an option, the BL50S can be equipped with a high definition audio interface
implemented via the Realtek ALC268 codec and available on a standard 9-pin D-
Sub connector at the front panel.
Table 13.
Pin assignment of the HD audio interface
Table 14.
Signal mnemonics of the HD audio interface
9
AUDIO_IN_R
5
AUDIO_SPDIF
8
AUDIO_GND
4
AUDIO_IN_L
7
AUDI
3
AUDIO_OUT_R-
6
AUDIO_OUT_L-
2
AUDIO_GND
1
AUDI
Signal
Direction
Description
AUDIO_EXT_OUT_L±/R± out
Line out, left and right, differential signal
pairs
AUDIO_EXT_IN_L/R
in
Line in, left and right
AUDIO_EXT_GND
-
Analog ground
AUDIO_EXT_SPDIF
out
S/PDIF output
1
6
5
9
