Null Modem Adapters
1 product
Null modem adapters with 25 way D type connectors in male to male, male to female and female to female versions.
What a null modem adapter does
A null modem adapter crosses the send and receive lines so two serial devices, such as two computers or a computer and a terminal, can talk directly. Fit it to the end of a standard serial cable instead of buying a separate null modem cable.