Summary: hardware flow control on IPC serail ports

From: Rosalinda Garcia (rosa@crick.ssctr.bcm.tmc.edu)
Date: Fri Jun 18 1993 - 13:08:26 CDT


Thank for your many responses. The answer to the my question was no. I did get a pin-out config for
cable that might do the trick however. I will try this.

Original Question:
>
>Does anyone know if full hardware flow-contol is supported on the serial ports
>on an IPC?
>
>

Some responses:
                                
>>
>
>There is no input flow control.
>
>--
>Brett Lymn | "Hey, you can't do that here"
>Computer Systems Administrator | "Wrong"
>AWA Defence Industries | - Terminator
>
}-- End of excerpt from Brett Lymn

On Jun 16, 9:58pm, David Fetrow wrote:
} Subject: Re: hardware flow control on IPC serial ports
>no.
>
>--
> -dave fetrow- INTERNET: fetrow@biostat.washington.edu
> FAX: 206-543-3286 BITNET: fetrow@uwalocke
}-- End of excerpt from David Fetrow

>
>Not implemented on ANY of the Sun built-in ports. That is, there is
>no support for incoming hardware flow control. There is outgoing
>hardware flow control.
>--
>Steve Hanson - FERMILAB, Batavia, Il.
>hanson@pogo.fnal.gov or hanson@fnal.fnal.gov
>
}-- End of excerpt from Steve Hanson

On Jun 18, 8:14am, Glenn Satchell - Uniq Professional Services wrote:
} Subject: Re: hardware flow control on IPC serial ports
>Here's the pinout of the db-8 connector on IPC to connect to DB-25 modem:
>
> Din-8 DB-25 Circuit Signal Direction Description
> 1 20 CD DTR output Data Terminal Ready
> 2 5 CB CTS input Clear to Send
> 3 2 BA TxD output Transmit Data
> 4 7 AB GND - Ground
> 5 3 BB RxD input Receive Data
> 6 4 CA RTS output Request to Send
> 7 8 CF DCD input Data Carrier Detect
> 8 17 DD RTxC input Receive Clock
>
> The pins on the Din-8 connector look like:
>
> ---------
> ' === `
> ' `
> ' | 6 | 7 | 8 `
> | ___ ___ ___ |
> | 3 4 5 |
> ` ___ ___ '
> ` 1 2 '
> ` '
> ---------
>
>It has the RTC and CTS connections so it will do hardware flow control
>just like the other sparcstations (ie a modem can regulate the flow out
>of the serial port on the IPC but not what is coming in). It *doesn't*
>do synchronous transfer though (X25, SNA, etc).
>
>regards,
>--
>Glenn Satchell glenn@uniq.com.au | "When I die I want to go
>Uniq Professional Services Pty Ltd ACN 056 279 335 | peacefully in my sleep
>PO Box 70, Paddington, NSW 2021, (Sydney) Australia | like my Grandfather,
>Phone 02 360 7434 Pager 016 287 000 Fax 02 331 2572 | not screaming like the
> "Sun Accredited System Consultants" | passengers in his car."
>

Thanks again to:

blymn@mulga.awadi.com
fetrow@biostat.washington.edu
alida!swj@uunet.uu.net
hanson@pogo.fnal.gov
ed@magma.com
jim@ferkel.ucsb.edu
guy@auspex.com
dbrown@lizzard.med.uta
glenn@uniq.com.au

-- 

Rosalinda Garcia INTERNET: rosa@bcm.tmc.edu System Administrator VOICE: (713) 798-3535 Systems Support Center US MAIL: One Baylor Plaza, H302H Baylor College of Medicine Houston, Texas 77030



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