RS232 DB25 Serial Loopback for Norton. For signal testing
The PC loopback plug is a useful diagnostic tool. The
loopback plug connects serial inputs to serial outputs so that the port may
be tested. There is more than one way to wire up a loopback plug - but this
is the most common. Used to verify that a port is working. This one works
with Norton Utilities: Norton Diagnostics from Symantec.
|
DB25 pin D-SUB male (at the computer) |
Name |
Pin |
Pin |
Pin |
Pin |
Jumpering 1 |
2 |
3 |
|
|
Jumpering 2 |
4 |
5 |
|
|
Jumpering 3 |
6 |
8 |
20 |
22 |