9 Pin to 25 Pin Adapter (Mouse type)
DB9 to DB25 Adapter
DB9 MALE END
DB 25 FEMALE END
DB 9 pin
signal
DB25 pin
1
DCD
8
2
RX
3
3
TX
2
4
DTR
20
5
GND
7
6
DSR
6
7
RTS
4
8
CTS
5
9
RI
22
Note:
The unspecified pins in the DB25 connector are not connected to anything.
There are nuts on the DB9 side to hold the cable to the adapter.
There are screws to hold the adapter to the DB25 connector.
The reference for the signal names shown is the COMPUTER on the DB25 side