Parallel port Loopback for Norton/PassMark pinout

25 pin D-SUB male connector layout
25 pin D-SUB male connector


Used to verify that a port is working. This one works with Norton Utilities: Norton Diagnostics and PassMark Software.

Name Pin Pin Name
Data Bit 0 2 15 Error
Data Bit 1 3 13 Select
Data Bit 2 4 12 Paper Out
Data Bit 3 5 10 Acknowledge
Data Bit 4 6 11 Busy