DFI ES121-LR - Manual (Page 36)

36
4
Jumper Settings
COM 1 RS232/Power Select
J7
6 2
5 3 1
4
1-3, 2-4 On:
RS232
(default)
6 2
5 3 1
4
3-5 (+12V),
4-6 (+5V) On:
RS232 with power
6 2 4
5 3 1
J7
COM 1
DCD-
TD
RD D
TR
-
GND R
T
S-
DSR
-
CT
S-
RI
-
1 9
2
+5V
TD
RD D
TR
-
GND R
T
S-
DSR
-
CT
S-
+12V
1 9
2
COM 1