Actions
RS232 vs ITU V24 Signal Names » History » Revision 2
« Previous |
Revision 2/5
(diff)
| Next »
laforge, 11/22/2022 12:50 PM
RS232 vs ITU-T V.24 Signal Names¶
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:
| Common Name | RS232 | ITU-T V.24 | Description |
|---|---|---|---|
| GND | AB | 102 | Signal/System Ground |
| TXD | BA | 103 | Received data |
| RXD | BB | 104 | Transmitted data |
| RTS | CA | 105 | Request to Send |
| CTS | CB | 106 | Claer to Send |
| DSR | CC | 107 | Data Set Ready |
| DTR | CD | 108/2 | Data Terminal Ready |
| CD | CF | 109 | Carrier detect |
| - | - | 113 | Transmitter signal element timing (DTE source) |
| - | - | 114 | Transmitter signal element timing (DCE source) |
| - | - | 115 | Receiver signal element timing (DCE source) |
| RI | CE | 125 | Ring Indicator |
| - | - | 133 | Ready for receiving |
Full ITU V.24 table¶
Updated by laforge over 1 year ago · 2 revisions
