Ithaca 9000 Data Cable Specifications

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

DB-25

Connector Female

DB-9