Serial port Loopback (9 Norton)

pinout

Used to verify that a port is working. This one works with Norton Utilities: Norton Diagnostics from Symantec.

9 pin D-SUB female connector  to the computer

Name Pin Pin Pin Pin Jumpering 1 2 3     Jumpering 2 7 8     Jumpering 3 1 4 6 9

Source:www.pinouts.ru