Ithaca Series 50 Impact Printer
| Null-Modem Cables |
| DB-9 |
to |
DB-9 |
|
DB-25 |
to |
DB-25 |
|
DB-25 |
to |
DB-9 |
| 1 and 6 |
- |
4 |
2 |
- |
3 |
2 |
- |
2 |
| 2 |
- |
3 |
3 |
- |
2 |
3 |
- |
3 |
| 3 |
- |
2 |
4 |
- |
5 |
4 |
- |
8 |
| 4 |
- |
1 and 6 |
5 |
- |
4 |
5 |
- |
7 |
| 5 |
- |
5 |
6 and 8 |
- |
20 |
6 and 8 |
- |
4 |
| 7 |
- |
8 |
7 |
- |
7 |
7 |
- |
5 |
| 8 |
- |
7 |
20> |
- |
6 and 8 |
20 |
- |
6 and 1 |
Where is Pin 1?
| Connector |
Male |
Female |
| DB-25 |
 |
 |
| DB-9 |
|
 |
| Parallel Cable |
| 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 |
|