17
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
JP14
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
JP15
JP16
JP19
JP20 JP18
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
JP17
Rev. B
USB Port
JP15
USB 1/2 (USB 3.0)
JP16
USB 3/4 (USB 3.0)
JP17
USB 5/6 (USB 2.0)
JP18
USB 7/8/9/10 (USB 2.0)
JP19
USB 5/6 (USB 3.0)
JP20
USB 7/8 (USB 3.0)
