Serial Null-Modem Cable Pinouts
25 pin to 9 pin Serial Null Modem Cable – Part # 253-9800006
|
DB-25
|
to
|
DB-9
|
|
2
|
-
|
2
|
|
3
|
-
|
3
|
|
4
|
-
|
8
|
|
5
|
-
|
7
|
|
6 and 8
|
-
|
4
|
|
7
|
-
|
5
|
|
20
|
-
|
6 and 1
|
9 pin to 9 pin Serial Null Modem Cable – Part # 10-2020
|
DB-9
|
to
|
DB-9
|
|
1 and 6
|
-
|
4
|
|
2
|
-
|
3
|
|
3
|
-
|
2
|
|
4
|
-
|
1 and 6
|
|
5
|
-
|
5
|
|
7
|
-
|
8
|
|
8
|
-
|
7
|
Parallel Cable Pinouts
25 pin to 25 pin Parallel Cable – Part # 253-9800007
|
DB-25 Male
|
to
|
DB-25 Male
|
|
1
|
-
|
1
|
|
2
|
-
|
2
|
|
3
|
-
|
3
|
|
4
|
-
|
4
|
|
5
|
-
|
5
|
|
6
|
-
|
6
|
|
7
|
-
|
7
|
|
8
|
-
|
8
|
|
9
|
-
|
9
|
|
10
|
-
|
10
|
|
11
|
-
|
11
|
|
12
|
-
|
12
|
|
13
|
-
|
13
|
|
14
|
-
|
14
|
|
15
|
-
|
15
|
|
16
|
-
|
16
|
|
17
|
-
|
17
|
|
18
|
-
|
18
|
|
19
|
-
|
19
|
|
20
|
-
|
20
|
|
21
|
-
|
21
|
|
22
|
-
|
22
|
|
23
|
-
|
23
|
|
24
|
-
|
24
|
|
25
|
-
|
25
|
25 pin to 36 pin Centronics Parallel Cable – Part # 253-9800002
|
DB-25 Male
|
to
|
Centronics 36 Male
|
|
1
|
-
|
1
|
|
2
|
-
|
2
|
|
3
|
-
|
3
|
|
4
|
-
|
4
|
|
5
|
-
|
5
|
|
6
|
-
|
6
|
|
7
|
-
|
7
|
|
8
|
-
|
8
|
|
9
|
-
|
9
|
|
10
|
-
|
10
|
|
11
|
-
|
11
|
|
12
|
-
|
12
|
|
13
|
-
|
13
|
|
14
|
-
|
14
|
|
15
|
-
|
32
|
|
16
|
-
|
31
|
|
17
|
-
|
36
|
|
18
|
-
|
19
|
|
19
|
-
|
20 & 21
|
|
20
|
-
|
22 & 23
|
|
21
|
-
|
24 & 25
|
|
22
|
-
|
26 & 27
|
|
23
|
-
|
29
|
|
24
|
-
|
28
|
|
25
|
-
|
30
|
|
Ground
|
-
|
Ground
|
Where is Pin 1?
| Connector |
Male |
Female |
| DB-25 |
 |
 |
| DB-9 |
|
 |
Fax: 203.949.9048
