RS232 vs ITU V24 Signal Names » History » Version 3
laforge, 11/23/2022 07:25 PM
add direction column
1 | 2 | laforge | h1. RS232 vs ITU-T V.24 Signal Names |
---|---|---|---|
2 | 1 | laforge | |
3 | There are unfortunately a lot of different terms/names used for serial interfaces, depending on which context/spec you are looking at. This table provides a mapping of the most common signals between different specs: |
||
4 | |||
5 | 3 | laforge | |_.Common Name|_.RS232|_.ITU-T V.24|_.Direction|_.Description| |
6 | |GND|AB|102|-|Signal/System Ground| |
||
7 | |TXD|BA|103|DTE->DCE|Transmitted data| |
||
8 | |RXD|BB|104|DTE<-DCE|Received data| |
||
9 | |RTS|CA|105|DTE->DCE|Request to Send| |
||
10 | |CTS|CB|106|DTE<-DCE|Clear to Send| |
||
11 | |DSR|CC|107|DTE<-DCE|Data Set Ready| |
||
12 | |DTR|CD|108/2|DTE->DCE|Data Terminal Ready| |
||
13 | |DCD|CF|109|DTE<-DCE|Data Carrier detect| |
||
14 | |-|-|113|DTE->DCE|Transmitter signal element timing (DTE source)| |
||
15 | |-|-|114|DTE<-DCE|Transmitter signal element timing (DCE source)| |
||
16 | |-|-|115|DTE<-DCE|Receiver signal element timing (DCE source)| |
||
17 | |RI|CE|125|DTE<-DCE|Ring Indicator| |
||
18 | |-|-|133||Ready for receiving| |
||
19 | 2 | laforge | |
20 | h2. Full ITU V.24 table |
||
21 | |||
22 | !v24.png! |