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Chapter 2 Installations
22 CI5VGM User’s Manual
JP6: DiskOnChip BIOS Expansion Address Select
JP6 Address JP6 Address
1 2 3
D0000-D7FFF
1 2 3
D8000-DFFFF
(default)
J11: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings of this connector.
COM2
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
all
jumpers
open
1-2
3-4
5-6
7-8
11-12
15-16
17-18
19-20
23-24
1-2
3-4
5-6
7-8
9-10
11-12
13-14
15-16
17-18
19-20
21-22
23-24
1
•
•
2 1
•
•
2 1
•
•
2
3
•
•
4 3
•
•
4 3
•
•
4
5
•
•
6 5
•
•
6 5
•
•
6
7
•
•
8 7
•
•
8 7
•
•
8
9
•
•
10 9
•
•
10 9
•
•
10
11
•
•
12 11
•
•
12 11
•
•
12
13
•
•
14 13
•
•
14 13
•
•
14
15
•
•
16 15
•
•
16 15
•
•
16
17
•
•
18 17
•
•
18 17
•
•
18
19
•
•
20 19
•
•
20 19
•
•
20
21
•
•
22 21
•
•
22 21
•
•
22
23
•
•
24 23
•
•
24 23
•
•
24
Jumper
Illustration
J11
J11
J11