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Your cart is empty.2 in 1 serial loop back tester for both db9 for db25 connections. Allows you to test transmission and receiving lines by looping the signal back from one to the other on the same connection. Great for troubleshooting issues on serial interfaces. Testing software not included.
Customer
Reviewed in the United States on December 7, 2020
No Problems with the device so far and working as described
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