ECS 3L Small Form Factor, Manual

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19
Installing the Motherboard
COM1: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
TV1: External S-VIDEO Header (optional)
4
RTSB RART B Request to Send
1
DCDB Data Carrier Detect
2
DSRB Data Set Ready
3
SINB Serial Input
5
SOUTB UART B Serial Output
6
CTSB Clear to Send
7
DTRB
8
RI Ring Indicator
9
Key No pin
10
GND Ground
Pin Signal Name Function
UART B Data Terminal Ready
FUSB1~4: Front Panel USB Ports
The motherboard has four USB ports installed on the rear edge I/O port array.
Additionally, some computer cases have USB ports at the front of the case. If you
have this kind of case, use auxiliary USB connector to connect the front-mounted
ports to the motherboard.
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or
system hang-up.
1
3
data+
5
Pin Signal Name
Pin Signal Name
VCC 2 data-
4 gnd
data-
vcc
6
7 8 data+ gnd
4
GND
1
S_VIDEO_Y
2
S_VIDEO_C
3
AUDIO_R_IN
5
AUDIO_L_IN
6
AV_IN
7
GND
8
GND
9
Key
10
GND
Pin Signal Name