Two common applications are rs 232 eia 232 serial connections including ups cables and a variety of video interfaces on the ibm pc.
Null modem cable 9 pin male to 9 pin male.
Kentek 6 feet ft db9 female to db25 male null modem serial printer cable adapter cord 28 awg f m molded d sub rs 232 crossover 9 to 25 pin for pc mac serial device 5 0 out of 5 stars 1 6 18 6.
Product description although this is called a 9 pin null modem adapter because it fits into a 9 pin db9 socket this adapter only has 8 pins.
Pins commonly used for rs 232 eia 232 serial.
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Db9 null modem male to female slimline data transfer serial port adapter 2 pack 4 5 out of 5 stars 147.
Overview this 1 ft null modem cable has 9 pin connectors on both ends for connecting the data logger s rs 232 port to a peripheral s rs 232 port.
An interface such as the sc105 or sc932a is typically not required.
If you re using a serial cable or null modem cable for.
Kentek 25 feet ft db9 null modem serial cable cord extension 28 awg rs 232 crossover 9 pin male to female m f molded d sub port for pc mac linux printer data 5 0 out of 5 stars 4 9 63 9.
Db9 male to db9 male null modem cables are commonly used to connect your pc to another nearby pc or serial device using its modem protocol.
These cables are durable enough for use in industrial settings.
The 9th pin is not typically used in a null modem adapter so some manufacturers simply leave it out.
Here s a good set of figures for d sub 9 male and female connectors as viewed from the pin side not the solder side.