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pinout (распиновка)

Serial Port Loopback (25 Norton)

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

25 pin D-SUB FEMALE connector  to the computer
Name Pin Pin Pin Pin
Jumpering 1 2 3    
Jumpering 2 4 5    
Jumpering 3 6 8 20 22