9 Pin Null Modem Cable Pinout

Use this cable between two dte devices for instance two computers.

9 pin null modem cable pinout.

9 pin d sub female to computer 1. The null modem s universal cable supports both 9 and 25 pin connectors enabling you to transmit data between your two machines. A null modem or crossover cable is used to connect to dte devices together. Using com ports you can set up communication between two computers.

Db 9 pin db 9 pin. The startech mxt100ff is an example of a straight through cable. This cable may be used to connect any rs 232 equipped device to computer connect two computers via com serial port and so on. Null modem cable with handshake.

The purpose of a null modem cable is to permit two rs 232 dte devices to communicate with each other without modems or other communication devices i e dce s between them. This solution is not perfect as it does not provide high speed data transfer. Db 25 pin fg frame ground 1. 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.

The two main things to be concerned about are the pinout and the gender. Null modem communication refers to using a crossed over rs 232 cable to connect the teleprinters directly to one. Pinout and signals for building a serial rs232 nullmodem cable use this cable between two dte data terminal equipment devices for instance two computers. The pinout of the db 9 connector can be confusing when cabling an rs232 line.

Here s a good set of figures for db 9 male and female connectors as viewed from the pin side not the solder side. Null modem cable pinouts. 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. A standard null modem cable is the solution.

There are a lot of details to consider when arranging the pins between male and female connectors on a serial cable or serial device. The e refers to the shell size. Simple null modem cable. A db 25 connector has a b size shell but the common nine pin connector is smaller and has an e size shell.

9 pin d sub female to computer 2. You can use. Db9 pin d sub female to pc1. This connector regardless what you call it is used for a variety of purposes.

Null modem cable db9 db9. The de 9 d sub 9 pin connector is often mistakenly referred to as the db 9 connector. Use this cable to connect two devices equipped with serial rs 232 interface.