www.dfi.com
18
Chapter 2 Hardware Installation
Chapter 2
COM1/COM2 RS232/Power Select
JP8
JP4
JP8 (for COM 1) and JP4 (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 JP8’s and
JP4’s setting respectively.
COM 1
COM 2
10
2
1
9
JP8 (COM 1)
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP4 (COM 2)
2
4 6
1 3
5
2
4 6
1 3
5
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
2
4 6
1 3
5
2
4 6
1 3
5
USB Power Select
2-3 On: 5V
1
3
2
1-2 On: 5VDU
1
3
JP35
JP33
JP39
JP38 JP36 JP37
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
JP number
USB Port
JP33
USB 1/2 (USB 3.0)
JP35
USB 3/4 (USB 3.0)
JP39
USB 5/6 (USB 3.0)
JP38
USB 13/14 (USB 2.0)
JP36
USB 7/8 (USB 2.0)
JP37
USB 9/10 (USB 2.0)