Path: utzoo!attcan!uunet!iscuva!jimc
From: jimc@iscuva.ISCS.COM (Jim Cathey)
Newsgroups: comp.sys.mac
Subject: Re: Help
Keywords: LocatTalk, Fontonize
Message-ID: <1828@iscuva.ISCS.COM>
Date: 2 Aug 88 16:48:44 GMT
References: <25255@ucbvax.BERKELEY.EDU> <14871@apple.Apple.COM>
Distribution: na
Organization: ISC Systems Corporation, Spokane, WA
Lines: 44

In article <14871@apple.Apple.COM> rmh@apple.apple.com.UUCP (Rick Holzgrafe) writes:
>In article <25255@ucbvax.BERKELEY.EDU> abbott@dean.Berkeley.EDU.UUCP (+Mark Abbott) writes:
>
>>A couple of questions.  1:  I've got a very small localtalk network which
>>is giving me a strange problem.  The setup is:
>>
>>Mac SE		Mac SE		Mac+		LW+
>>  |		  |		 |		 |
>>  |		  |		 |		 |
>>  |______________|______________|_______________|
>>
>>The problem is that the Mac+ can't seem to find the LW+.  Chooser won't
>>turn up the LW when I choose the LW driver.  However, if I cut off the
>>two SEs so that the network is just the Mac+ and the LW, the problem goes
>>away.  The two SEs never seem to have any trouble finding the LW.  
>>All the software is compatible.  I'm baffled.  Anybody got suggestions?  

>Check your "AppleTalk Personal Network" manual, to be sure you've got it
>all cabled correctly. Any dangling cables at the ends?

Good advice.  Usually this sort of problem is caused by a broken cable.
This is especially a problem if the wiring has been done in-house and
the connections are none too good.

>The manual also shows every connection using a connection box; at the
>ends, one of the two "outlets" is empty. I don't think it hurts to simply
>omit the connnection boxes at the ends, and just plug in the cable directly
>(for one thing, I've done it that way myself);...

NOOOOO!  I'm not sure that the Appletalk connectors will even plug into the
serial ports directly, but that white box is more than just a wiring splitter.
It contains an impedance matching transformer, and termination networks for
both the Mac and the network.  The worst thing is that it would probably work.
Sometimes.  With short cabling.  On every odd Tuesday and when no one was 
looking...

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