Jetway Computer NC92 - Manual (Page 14)

CDIN are the connectors for CD-Audio Input signal. Please connect it to CD-ROM
CD-Audio output connector.
CD Audio-In Headers
CDIN
4 1
GND CD-R CD-L GND
(3) USB Port Headers (9-pin): USB2, USB3
USB Port Header
VCC
Pin 1
-D
ATA
GND
+D
AT
A
VCC
NC
-
DATA GND
+D
AT
A
(4) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(5) Power LED: PWR LED
10