Editing Null modem (section)

=== Full handshaking ===
{{Multiple image
 | direction = horizontal
 | width     = 200
 | image1    = Null modem 7-wire.svg
 | image2    = Null modem DB-9 7-wire.svg
 | footer    = Wiring pinouts for DB-25 (left) and DE-9 (right) connectors
}}

This cable is incompatible with the previous types of cables' hardware flow control, due to a crossing of its RTS/CTS pins. With suitable software, the cable is capable of much higher speeds than its predecessors. It also supports software flow control.<ref name="lammertbies" />

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