Db25 Rs232 Cable Pinout

Rs232 v 24 alt a connector.

Db25 rs232 cable pinout.

Rs 232 pinouts for db25 and db9 connectors last updated. Db25 v 24 pinout and signals. Pinout diagram for db 25 connector. Save as pdf pins commonly used for rs 232 serial.

These cable can take a variety of forms in terms of the physical methods used for construction as well as the number of connections that are incorporated within the overall rs232 cable. To perform a loopback test with no hardware flow control with a db 25 connector connect pins 2 to 3 for rs 232. Whenever rs232 is used rs232 cables will be needed to provide the required electrical connection. For rs 422 485 connect pins 5 to 20 and 7 to 22.

Since the introduction of the smaller serial port on the ibm at 9 pins rs232 connectors are commonly used. Rs232 db25 to db9 converter. The dte pc has the male connector shown below and the dce peripheral has the female. Rs 232 maximum cable length.

Most of the pins on db 25 connectors are not connected since only nine pins are used for rs 232 rs 422 and rs 485 communication. Rs232 port db25 serial port. The original pinout for rs232 was developed for a 25 pins sub d connector. Db25 v 24 pinout and signals alt a connector fig 5.

Pinout of epson serial rs 232 cable db9 to db25 and layout of 9 pin d sub male connector and 25 pin d sub female connectorfor epson thermal impact receipt printer cable pinouts. Commonly used rs232 null modem pin out for db25 and db 9 connectors. The maximum cable length for rs 232 is 50ft but in practise depends on baud rate cable specific capacitance and ambient noise. The table below contains some rules of thumb from experiments done by texas instruments years ago.

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. Rs232 manages communication flowing between the dte and dce using serial pinouts of either the db9 or db25 variety. Com port pinout and configuration. Each pin in a 9 or 25 serial connector pinout has its own distinct function.