Serial port Loopback (25 Norton) pinout

25 pin D-SUB female connector layout
25 pin D-SUB female connector at the computer


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

Name Pin Pin Pin Pin
Jumpering 1 2 3    
Jumpering 2 4 5    
Jumpering 3 6 8 20 22

None found.