Standard 9 Pin Serial Cable Pinout

The startech mxt100ff is an example of a straight through cable.

Standard 9 pin serial cable pinout.

D sub 9 connector pinout pinout and diagram of de9 connector db9 connector commonly used for serial ports rs 232. This cable may be used to connect any rs 232 equipped device to computer connect two computers via com serial port and so on. A null modem or crossover cable is used to connect to dte devices together. Data carrier detect after a data terminal is detected a signal is sent to the data set that is going to be transmitted to the terminal.

The cost of running this website is covered by advertisements. This table shows the pin numbers with signal names and the signal direction. Simple null modem cable. For this to work the transmit txd pin of one device needs to be connected to the receive rxd pin of the other device and vice versa.

Some of the simpler systems just send the data without any hard wired handshaking and as a result the serial data cables required for this are very simple. 9 pin to 25 pin serial. Model 222 loop detector board edge connector pin assignments. An rs 232 serial port was once a standard feature of a personal computer used for connections to modems printers mice data storage uninterruptible power supplies and other peripheral devices.

This use has been standardized as tia 574. Some miniaturized electronics particularly graphing calculators and hand held amateur and two way radio equipment have serial ports using a phone connector. 25 pin d sub male to the serialcable. 9 pin d sub female to the computer.

The 9 pin de 9 connector has been used by most ibm compatible pcs since the serial parallel adapter option for the pc at where it allowed a serial and parallel port to fit on the same card. This adapter will enable you to connect a 25 pin serialcable to a 9 pin connector at the computer. Model 228 dual slot magnetometer board edge connector pin assignments 137 figure 6 3. A computer s serial com port dte is usually a male port as shown below and any peripheral devices you connect to this port usually has a female connector dce.

Serial data cable diagrams and pin connections different data systems utilise different levels of handshaking when using rs232. The dte pc has the male connector shown below and the dce peripheral has the female. Received data the data set receives the initial signal via the receive data line rxd. It appears that you are using adblocking software.

Use this cable to connect two devices equipped with serial rs 232 interface. Pinout of null modem cables and layout of 9 pin d sub female connector and 25 pin d sub female connectorde 9 to de 9 de 9 to de 25 cables. An rs232 pinout 9 pin cable features nine pins. This rs232c de 9 usually miscalled db 9 port is available in some pcs and many other devices.

Null modem cable with handshake.