DB9 Female to DB25 Female Serial Loopback Tester

It's a great way to troubleshoot and diagnose your DB25 or DB9 serial ports.

A loopback tester allows you to send and receive data from the same serial port to verify that the port is operational. This serial loop back tester will provide you with the ability to diagnose any problems with your DB25 or DB9 serial port or DB25 serial cable. This will not work as an adapter because the wires are wrapped around. They do not go from end to end.

Details

Connector A :                             DB9 Female
Connector B :                             DB25 Female

Note

• Testing software is not included