--- title: RS232 url: 'https://andywhittaker.com/articles/rs232' markdown: 'https://andywhittaker.com/articles/rs232.md' lang: en date: '2017-04-06' description: "RS232 cable wiring diagrams and pinout configurations for connecting computers and communication equipment. Introduction I hope you like this. If you have ever wanted to connect to PCs or any two pieces of communications equipment together, it's easy to get confused about what connection goes where…" --- # RS232 ## [RS232](https://andywhittaker.com/articles/rs232) 6th Apr 2017 0 views today · 335 views all time RS232 cable wiring diagrams and pinout configurations for connecting computers and communication equipment. ## Introduction I hope you like this. If you have ever wanted to connect to PCs or any two pieces of communications equipment together, it's easy to get confused about what connection goes where. By the previous sentence, I'm assuming you're like me, i.e. why buy a cable when you can spend hours of fun (???) making up your own! ## Wiring Diagrams ### Full DTE to DTE Cable ![Full DTE to DTE Cable](https://andywhittaker.com/user/pages/02.articles/rs232/full-dte-dte.gif?g-3fe147bf) ### Full DTE to DCE Cable ![Full DTE to DCE Cable](https://andywhittaker.com/user/pages/02.articles/rs232/full-dte-dce.gif?g-3fe147bf) ### 25-Pin DCE to DTE ![25-Pin DCE to DTE](https://andywhittaker.com/user/pages/02.articles/rs232/25-pin-dce-dte.gif?g-3fe147bf) ### 25-Pin to 9-Pin Adapter ![25-Pin to 9-Pin Adapter](https://andywhittaker.com/user/pages/02.articles/rs232/25-to-9-pin-adapter.gif?g-3fe147bf) ### 9-Pin DCE to DTE ![9-Pin DCE to DTE](https://andywhittaker.com/user/pages/02.articles/rs232/9-pin-dce-dte.gif?g-3fe147bf) ### 3-Wire DTE to DTE ![3-Wire DTE to DTE](https://andywhittaker.com/user/pages/02.articles/rs232/3-wire-dte-dte.gif?g-3fe147bf) ### 3-Wire DTE to DCE ![3-Wire DTE to DCE](https://andywhittaker.com/user/pages/02.articles/rs232/3-wire-dte-dce.gif?g-3fe147bf) [ Previous Post](https://andywhittaker.com/articles/lotus-esprit-gt3) [Next Post ](https://andywhittaker.com/articles/firebird) --- ## Navigation - Parent: [Articles](https://andywhittaker.com/articles.md) - Previous: [Firebird](https://andywhittaker.com/articles/firebird.md) - Next: [Lotus Esprit GT3](https://andywhittaker.com/articles/lotus-esprit-gt3.md)