DB25M to IDC10 Serial AT-EVEREX-INTEL Version COM Port 12IN

This version known as the AT-EVEREX.
Version uses the following wiring.

IDC-10	DB-25
Pin 1 	Pin 8
Pin 2	Pin 3
Pin 3 	Pin 2
Pin 4	Pin 20
Pin 5 	Pin 7
Pin 6	Pin 6
Pin 7 	Pin 4
Pin 8	Pin 5
Pin 9 	Pin 22

A 12 Inch Ribbon cable with one end db-25 Male and the other IDC 10 pin Female. These small cables plug into motherboards and some I/O Cards.