9 Pin To 25 Pin Null Modem Cable Pinout

There is an answer to this dilemma.

9 pin to 25 pin null modem cable pinout. Use this cable between two dte devices for instance two computers. Kentek 25 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 4 6 out of 5 stars 3 11 34 11. The db 25 connector is used for a variety of purposes. Serial rs232 null modem cable db9 db25.

Two common applications are rs 232 eia 232 serial connections and the parallel printer interface on the ibm pc. Db 9 pin db 9 pin. Null modem communication refers to using a crossed over rs 232 cable to connect the teleprinters directly to one. A db 25 connector has a b size shell but the common nine pin connector is smaller and has an e size shell.

Commonly used rs232 null modem pin out for db25 and db 9 connectors. Use this cable between two dte devices for instance two computers. 9 pin d sub female to computer 1. Null modem is a communication method to directly connect two dtes computer terminal printer etc using an rs 232 serial cable the name stems from the historical use of rs 232 cables to connect two teleprinter devices or two modems in order to communicate with one another.

This cable may be used to connect any rs 232 equipped device to computer connect two computers via com serial port and so on. D sub 9 d sub 25. Pinout and signals for building a serial rs232 nullmodem cable. The de 9 d sub 9 pin connector is often mistakenly referred to as the db 9 connector.

This connector regardless what you call it is used for a variety of purposes. 25 pin d sub female to computer 2. 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. The db 25 connector is also used for scsi connections.

We don t think that a null modem cable built to the above pinout will work quite as well but a lot of folks appear to have success with it. Db 25 pin fg frame ground 1. Here s a good set of figures for db 25 male and female connectors as viewed from the pin side not the solder side. Save as pdf pins commonly used for rs 232 serial.

Use this cable to connect two devices equipped with serial rs 232 interface. Rs 232 pinouts for db25 and db9 connectors last updated. Using com ports you can set up communication between two computers. A standard null modem cable is the solution.