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???
12/07/04 18:56
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#82712 - COM port pin as 5 or 9 v power supply
Responding to: ???'s previous message
EIA RS232 9 pin connector does not have a deticated power source. Although I have used RTS for small source on deticated projects, I would not recommend it.



1 CD Carrier Detect
2 RXD Receive Data
3 TXD Transmit Data
4 DTR Data Terminal Ready
5 GND Signal Ground / Common
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicator




List of 12 messages in thread
TopicAuthorDate
COM port pin as 5 or 9 v power supply.            01/01/70 00:00      
   COM port pin as 5 or 9 v power supply            01/01/70 00:00      
   Port Powered Circuits            01/01/70 00:00      
      Ruin your COM port?            01/01/70 00:00      
         Why you can ruin Easily the COM port?            01/01/70 00:00      
      To Ijaz Ahmed            01/01/70 00:00      
         Re: To Ijaz Ahmed            01/01/70 00:00      
            Where does 8051 fit in your project?            01/01/70 00:00      
               point of the question            01/01/70 00:00      
   Charge Pumps/DC-DC converters            01/01/70 00:00      
   Watch for the transceiver.            01/01/70 00:00      
      RE            01/01/70 00:00      

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