Db9 To Db25 Adapter - CommTech FASTCOM IG232/2-PCI Hardware Reference Manual

10

DB9 to DB25 ADAPTER

Many RS-232 devices use the DB25 style connector. The following illustration shows a DB9 to DB25 adapter:
DB9 FEMALE
1
6
2
7
3
8
4
9
5
DO NOT CONNECT GROUND TO THE OUTSIDE SHELL OF THE CONNECTORS.
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DB25 MALE
13
12 25
11 24
10
23
9
22
8
21
7
20
6
19
5
18
4
17
3
16
2
15
1
14
DB9 FEMALE
2 RXD
3 TXD
5 GROUND
7 RTS
8 CTS
DB25 MALE
3
2
7
4
5