ECS RS485M-M, Руководство пользователя, Страница: 28 / 88

22
Installing the Motherboard
USB3/4: Front Panel USB headers
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.
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
COM2: Onboard serial port header(Optional)
Connect a serial port extension bracket to this header to add a second serial port to your
system.
1
NDCDB Data carry detect
2
NSINB Serial Data In
3
NSOUTB Serial Date Out
4
NDTRB Data terminal ready
5
GND Ground
6
NDSRB Date set ready
7
NRTSB Request to send
8
NCTSB Clear to send
9
NRIB Ring Indicator
10
Key No pin
Pin Signal Name Function
IrDA: Infrared header
The motherboard supports an Infrared (IRDA) data port. Infrared ports allow the wireless
exchange of information between your computer and similarly equipped devices such as
printers, laptops, Personal Digital Assistants (PDAs), and other computers.
5
IRTX
Pin Description
1
VCC
2
No Pin
3
IRRX
4
Ground
Pin Signal Name