RS232 Pinouts
RS-232 stands for Recommended Standard 232. It is a standard for serial binary data signals connecting between a Data Terminal Equipment (DTE) and a Data Circuit-terminating Equipment (DCE). It is widely implemented in computer serial ports communication - roadmap for the way devices speak to each other using serial ports. RS-232 is radically identical to ITU V.24 (signal description and names) and V.28 (electrical). RS232 is an Active LOW voltage driven interface and operates at +12V to -12V.
RS232 DB25 Pinouts
|
Pin 1 |
Protective Ground |
|
Pin 2 |
Transmit Data |
|
Pin 3 |
Received Data |
|
Pin 4 |
Request To Send |
|
Pin 5 |
Clear To Send |
|
Pin 6 |
Data Set Ready |
|
Pin 7 |
Signal Ground |
|
Pin 8 |
Data Carrier Detect |
|
Pin 20 |
Data Terminal Ready |
|
Pin 22 |
Ring Indicator |
RS232 DB9 Pinouts
|
Pin 1 |
Data Carrier Detect |
|
Pin 2 |
Received Data |
|
Pin 3 |
Transmit Data |
|
Pin 4 |
Data Terminal Ready |
|
Pin 5 |
Signal Ground |
|
Pin 6 |
Data Set Ready |
|
Pin 7 |
Request To Send |
|
Pin 8 |
Clear To Send |
|
Pin 9 |
Ring Indicator |
RS232 RJ-45Pinouts
|
Pin 1 |
Data Set Ready / Ring Indicator |
|
Pin 2 |
Data Carrier Detect |
|
Pin 3 |
Data Terminal Ready |
|
Pin 4 |
Signal Ground |
|
Pin 5 |
Received Data |
|
Pin 6 |
Transmit Data |
|
Pin 7 |
Clear To Send |
|
Pin 8 |
Request To Send |
|
|
- Null Modem Cable
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- Cisco Cable
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- 9 to 25 Pin Serial Adapter Pinout
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- Parallel Printer Cable
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- DATU (Direct Access Test Unit)
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