Parallel Connector (DB25) Null Modem Adapter.Null Modems have their transmission and receiving lines crossed like in a crossover cable to allow for direct device to device communications. Connect this between two parallel ports on a pair of computers... more
Parallel Connector (DB25) Null Modem Adapter.Null Modems have their transmission and receiving lines crossed like in a crossover cable to allow for direct device to device communications. Connect this between two parallel ports on a pair of computers... more
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