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B2B – Business to business only
DB9 male where pins are not fitted yet
RJ11/12 6 pin female with loose wires with pins
Construct your own DB9 to RJ11/12 connections
Configure DB9 on one end with RJ11 on the other end.
With wires, the desired connections are mounted in the DB9 connector. The cables have attached plugs, so they just need to be inserted into the correct 'holes'.