Acer Aspire T310 Service Manual page 91

USB3/USB4: Front Panel USB Connectors
The mainboard has two 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 mainboard.
Pin
1 VREG_FP_USBPWR0
2 VREG_FP_USBPWR0
3 USB_FP_P0-
4 USB_FP_P1-
5 USB_FP_P0+
6 USB_FP_P1+
7 GND
8 GND
9 KEY
10 USB_FP_OC0
NOTE: Please make sure that the USB cable has the same pin assignement as indicated above. A
different pin assignment may cause damage or system hang-up.
COM2: Onboard Serial Port Connector
Connect a serial port extension bracket to this header to add a second serial port to your system.
Pin
1 NDCDB
2 NSINB
3 NSOUTB
4 NDTRB
5 GND
6 NDSRB
7 NRTSB
8 NCTSB
9 NRIB
10 Key
78
Signal Name
Singal Name
Function
Front Panel USB Power
Front Panel USB Power
USB Port 0 Negative Signal
USB Port 1 Negative Signal
USB Port 0 Positive Signal
USB Port 1Positive Signal
Ground
Ground
No Pin
Overcurrent Signal
Function
Data Carry Detect
Serial Data In
Serial Data Out
Data Terminal Ready
Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
Key
Chapter 5