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Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ihlpe!psfales
From: psfales@ihlpe.UUCP
Newsgroups: att.sys.pc6300,comp.sys.ibm.pc
Subject: Re: second serial port for AT&T 6300
Message-ID: <2214@ihlpe.ATT.COM>
Date: Wed, 28-Oct-87 10:04:41 EST
Article-I.D.: ihlpe.2214
Posted: Wed Oct 28 10:04:41 1987
Date-Received: Sat, 31-Oct-87 08:35:16 EST
References: <2259@sfsup.UUCP> <122@flnexus.ATT.COM>
Distribution: na
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 18
Xref: utgpu junk:6181 comp.sys.ibm.pc:8181

In article <122@flnexus.ATT.COM>, heff@flnexus.ATT.COM (Paul K Heffner) writes:
> I went in search of the same article for my 6300+ a few months ago. First I
> bought a knockoff clone serial board which, as it turned out, could only 
> be configured as COM1: or COM3: as bought. Most of the clone boards will
> allow a second COM2: port by using a second ACE chip, a line driver chip
> and a line reciever chip, and a pigtail cable. I sent the board back.

I had a similar knockoff board in my 6300 for a while.  It had the same
problem with the port that could only be set (via dip switches)for COM1 
or COM3.  However, since all the decoding logic for COM2 was on the board, 
I only had to solder in one jumper to make it work.  A little inconvenient,
but I imagine it was cheaper than buying a board from I*M.

-- 
Peter Fales		UUCP:	...ihnp4!ihlpe!psfales
			work:	(312) 979-7784
				AT&T Information Systems, IW 1Z-243
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