RS232 vs ITU V24 Signal Names » History » Version 1
laforge, 11/22/2022 12:15 PM
| 1 | 1 | laforge | |
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| 2 | 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: |
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| 4 | |_.Common Name|_.RS232|_.ITU-T V.24|_.Description| |
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| 5 | |GND|AB|102|Signal/System Ground| |
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| 6 | |TXD|BA|103|Received data| |
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| 7 | |RXD|BB|104|Transmitted data| |
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| 8 | |RTS|CA|105|Request to Send| |
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| 9 | |CTS|CB|106|Claer to Send| |
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| 10 | |DSR|CC|107|Data Set Ready| |
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| 11 | |DTR|CD|108/2|Data Terminal Ready| |
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| 12 | |CD|CF|109|Carrier detect| |
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| 13 | |-|-|113|Transmitter signal element timing (DTE source)| |
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| 14 | |-|-|114|Transmitter signal element timing (DCE source)| |
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| 15 | |-|-|115|Receiver signal element timing (DCE source)| |
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| 16 | |RI|CE|125|Ring Indicator| |
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| 17 | |-|-|133|Ready for receiving| |
