DFI EC300 Series - Manual (Page 63)

63
4
Jumper Settings
Jumper Settings - IO Board
EC230/310/320/321-LRA060
COM 3 to COM 10 RS232/RS422/RS485 Select
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
5-6 On: RS485
6 4 2
5 3 1
JP1 (for COM 3) to JP8 (for COM 10) are used to confi gure the COM ports to
RS232, RS422 (Full Duplex) or RS485.
The pin function of the COM ports will vary according to the jumper’s setting.
JP1 / JP2 / JP3 / JP4 / JP5 / JP6 / JP7 / JP8
6 4 2 6 4 2
5 3 1 5 3 1
COM 3
(JP1)
COM 4
(JP2)
RS232 RS422
Full Duplex
RS485
COM 3 / COM 4 / COM 5 / COM 8 / COM 9 / COM 10
RT
S
TXD CT
S
RXD GND
1 2 3 4 5
COM 5
(JP3)
COM 6
(JP4)
COM 7
(JP5)
COM 8
(JP6)
COM 9
(JP7)
COM 10
(JP8)
RX+ TX+ RX
-
TX
-
GND
1 2 3 4 5
D
ATA
+
N.C. D
ATA
-
N.C. GND
1 2 3 4 5
COM 6 / COM 7
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.
JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8