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.
Null modem cable 9 pin male to 9 pin male.
Here s a good set of figures for db 9 male and female connectors as viewed from the pin side not the solder side.
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.
Pins commonly used for rs 232 eia 232 serial.
The 9th pin is not typically used in a null modem adapter so some manufacturers simply leave it out.
Null modem 9 pin cable crossover or vs straight through serial zr 0769 on rs232 male usb standard cables spec 41 db9 to db25 pinout attwiki and wiring dev rj45 diagram h1 port null modem 9 pin cable crossover or null modem vs straight through serial cable zr 0769 cable on rs232 null modem male usb standard crossover read more.
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.
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.
Db9 null modem male to female slimline data transfer serial port adapter 2 pack 4 5 out of 5 stars 147.
These cables are durable enough for use in industrial settings.
If you re using a serial cable or null modem cable for.
Two common applications are rs 232 eia 232 serial connections including ups cables and a variety of video interfaces on the ibm pc.
An interface such as the sc105 or sc932a is typically not required.
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.