DFI ES520-CD Manual - Manual (Page 16)

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16
Chapter 4 Jumper Settings
Chapter 4
COM 2 RS232/RS422/RS485 Select
5-6 On: RS485
JP3 is used to configure the COM port 2 to RS232, RS422 (Full Duplex) or RS485. The pin
function of the COM port will vary according to the jumper’s setting.
JP3
6 4 2
5 3 1
COM 2
JP3
RS232 RS422
Full Duplex
RS485
COM 2
6 4 2
5 3 1
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
6 4 2
5 3 1
2
1 9
D
ATA
+
N.C. N.C. N.C. N.C.
DA
TA
-
N.C. N.C. N.C.
9
RXD+ TXD+ N.C. N.C. N.C.
RXD- TXD- N.C. N.C.
2
1 9
DCD- TD GND RT
S-
RI
-
RD
DT
R- DSR
-
CTS-
2
1
Mini PCIe/mSATA Select
JP8
1 3
10 12
1 3
10 12
2-5-8-11, 3-6-9-12 On: mSATA
1-4-7-10, 2-5-8-11 On:
Mini PCIe (default)
JP8 is used to select the Mini PCIe signal.