
www.dfi.com
18
Chapter 2 Hardware Installation
Chapter 2
COM1/COM2 RS232 Power Select
JP9 (for COM 1) and JP14 (for COM 2) are used to configure Serial COM ports to pure RS232
or RS232 with power. The pin functions of COM 1 and COM 2 will vary according to JP9’s and
JP14’s setting respectively.
JP9 (COM 1)
JP14 (COM 2)
COM 2
COM 1
2
1
9
JP9 (COM 1)
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP14 (COM 2)
2
4 6
1 3
5
2
4 6
1 3
5
2
4
6
1
3
5
1
3
5
2
4
6
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
USB Power Select
2-3 On: 5V
1
3
2
1-2 On:
5VDU (default)
1
3
JP37
JP38
JP41
JP40
The power of the USB connectors’ voltage buses can be configured to either 5VDU or 5V. The
jumpers are located as illustrated above and correspond to each USB port number as listed
below.
2
JP39
JP number
USB Port
JP37
USB 1/2 (USB 3.0)
JP38
USB 3/4 (USB 3.0)
JP39
USB 5/6 (USB 2.0)
JP40
USB 7/8/9/10 (USB 2.0)
JP41
USB 5/6 (USB 3.0)