Com1/Com2 Rs232/Power Select; Usb Power Select - DFI KD331-C236/Q170 User Manual

COM1/COM2 RS232 Power Select
JP9 (COM 1)
COM 1
COM 2
JP14 (COM 2)
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)
2 4 6
1 3 5
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
JP14 (COM 2)
6 5
3
4
2 1
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
Chapter 2 Hardware Installation
Chapter 2
1
9
2
2 4 6
1 3 5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
6 5
3
4
2
1
3-5 (+5V), 4-6 (+12V) On:
RS232 with power

USB Power Select

JP39
1
2
JP37
3
1-2 On:
5VDU (default)
JP38
1
2
3
2-3 On: 5V
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.
JP number
JP37
JP38
JP39
JP40
JP41
18
JP41 JP40
USB Port
USB 1/2 (USB 3.0)
USB 3/4 (USB 3.0)
USB 5/6 (USB 2.0)
USB 7/8/9/10 (USB 2.0)
USB 5/6 (USB 3.0)
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