DFI EC300 Series - Manual (Page 56)

56
4
Jumper Settings
VGA
COM1 and COM2 RS232/422/485 Select
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
5-6 On: RS485
JP11 (COM1) and JP13 (COM2) are used to confi gure COM1 and COM2 RS232,
RS422 (Full Duplex) or RS485 respectively.
1
6
5
2
JP11 JP13
JP11
JP13
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
COM 1 / COM 2
DCD TXD RXD DT
R
GND
1 2 3 4 5
6 8 9 7
DSR CT
S
RT
S
RI
RX+ TX+ RX
-
TX
-
GND
1 2 3 4 5
6 8 9 7
N.C. N.C. N.C. N.C.
D
ATA
+
N.C. D
ATA
-
N.C. GND
1 2 3 4 5
6 8 9 7
N.C. N.C. N.C. N.C.