Chapter 5
69
F_USB1~2 / R_USB: Front Panel USB Headers
The main board has four USB ports laid 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.
NOTE:
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.
COM2: Onboard Serial Port Header
You can connect a serial port extension bracket to this header and add a second serial port to the
system.
CD_IN: Analog Audio Input Header
Pin
Signal Name
Function
1
USBPWR
Front Panel USB Power
2
USBPWR
Front Panel USB Power
3
USB_FP_P0-
USB Port 0 Negative Signal
4
USB_FP_P1-
USB Port 1 Negative Signal
5
US
USB Port 0 Positive Signal
6
US
USB Port 1 Positive Signal
7
GND
Ground
8
GND
Ground
9
Key
No pin
10
USB_FP_OC0
Overcurrent signal
Pin
Signal Name
Function
1
DCDB
Data Carrier Detect
2
SINB
Serial Input
3
SOUTB
UART B Serial Output
4
DTRB
UART B Data Terminal Ready
5
GND
Ground
6
DSRB
Data Set Ready
7
RTSB
RART B Request to Send
8
CTSB
Clear to Send
9
RI
Ring Indicator
10
Key
No pin
Pin
Signal Name
Function
1
CD in_L
CD In left channel
2
GND
Ground
3
GND
Ground
4
CD in_R
CD In right channel
Summary of Contents for Aspire E650
Page 2: ...II PRINTED IN TAIWAN ...
Page 16: ...6 Chapter 1 Main Board Placement ...
Page 83: ...73 Chapter 6 Exploded Diagram ...
