Pinouts >  Serial interfaces cables and converters scheme
25 pin D-SUB female connector layout
25 pin D-SUB female connector
This adapter will enable you to use a normal serial cable as a nullmodem
Female Male
Shield Ground11Shield Ground
Transmit Data23Receive Data
Receive Data32Transmit Data
Request to Send45Clear to Send
Clear to Send54Request to Send
Data Set Ready620Data Terminal Ready
Data Terminal Ready206Data Set Ready
25 pin D-SUB male connector layout
25 pin D-SUB male connector
According to 2 reports in our database (2 positive and 0 negative) the Nullmodem adapter pinout should be correct.

Is this pinout
Nullmodem adapter visual pinout:click to enlarge
Source(s) of this and additional information: Hardware Book
Copyright © 2000-2024 by team, except user uploaded images.
No portion of this webpage may be reproduced in any form without visible link to .
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.
Change privacy settings