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From: dan@dyndata.uucp (Dan Everhart)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: RING line and COM ports
Message-ID: <DAN.91May26193509@dynamo.dyndata.uucp>
Date: 26 May 91 18:35:09 GMT
Sender: dan@dyndata.UUCP
Reply-To: dan@dyndata.uucp
Distribution: comp
Organization: Dynamic Data & Electronics
Lines: 12

The UARTs used in PCs have a bit in the modem status register for
reading the RING line.  Is that line actually brought out to the DB-25
connector on all PC serial boards?  If so, to which pin?  How about
the DB-9 connector?

Please email answers.  I'll post the answer if requested.

--
Dan Everhart                             Dynamic Data & Electronics
dan@dyndata.uucp                         7107 179th St SW
dan@dyndata.celestial.com                Edmonds, WA 98026, USA
{camco,eskimo,fluke}!dyndata!dan