Standard 9 Pin Serial Cable Pinout

Below is the pinout of a typical standard male 9 pin rs232 connector this connector type is also referred to as a db9 connector.

Standard 9 pin serial cable pinout. 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. It appears that you are using adblocking software. 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.

An rs232 pinout 9 pin cable features nine pins. 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. 9 pin d sub female to the computer. Null modem cable with handshake.

The startech mxt100ff is an example of a straight through cable. The dte pc has the male connector shown below and the dce peripheral has the female. The cost of running this website is covered by advertisements. 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.

A null modem or crossover cable is used to connect to dte devices together. Rs 232 maximum cable length. This table shows the pin numbers with signal names and the signal direction. This rs232c de 9 usually miscalled db 9 port is available in some pcs and many other devices.

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. Some miniaturized electronics particularly graphing calculators and hand held amateur and two way radio equipment have serial ports using a phone connector. Serial data cable diagrams and pin connections different data systems utilise different levels of handshaking when using rs232. 9 pin to 25 pin serial.

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. Use this cable to connect two devices equipped with serial rs 232 interface. Model 228 single slot magnetometer board edge connector pin assignments. Simple null modem cable.

Received data the data set receives the initial signal via the receive data line rxd. 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. This cable may be used to connect any rs 232 equipped device to computer connect two computers via com serial port and so on. 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.