IBM CI5VGM Series, Руководство пользователя

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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