[PCR-1000] RS-232 DB-9 Pinouts

nt1g at comcast.net nt1g at comcast.net
Thu Jun 17 20:51:12 EDT 2004


 I'm tempted to play with the Ring Indicator line...I'm not sure for what,
(it's probalby too noisy for audio) perhaps a real S-Meter or squelch detect.
 Ideas?

--
Skip Flem, NT1G
 Hull, Massachusetts


> RS-232 DB-9 Pinouts:
> 
> Pin    Symbol    Flow    Decription
> 
> 1     DCD     In     Data carrier detect
> 
> 2     RX     In     Serial data in
> 
> 3     TX     Out     Serial data out
> 
> 4     DTR     Out     Data terminal ready
> 
> 5     GND          Signal ground
> 
> 6     DSR     In     Data set ready
> 
> 7     RTS     Out     Ready to send
> 
> 8     CTS     In     Clear to send
> 
> 9     RI     In     Ring indicator
> 
> 
> The PCR-1000 manual doesn't have the pinouts.
> To hold power on the PCR, the RTS line must be held high.  Otherwise the PCR
> will auto power-down in about 20 seconds.
> 
> Ted Handel, WB5REA
> thandel at losalamos.com
> 
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