Xref: utzoo comp.protocols.appletalk:713 comp.sys.ibm.pc:16237 comp.sys.mac:16908 comp.sys.tandy:788
Path: utzoo!dciem!nrcaer!scs!spl1!laidbak!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!mcnc!ecsvax!ugogan
From: ugogan@ecsvax.UUCP (Jim Gogan)
Newsgroups: comp.protocols.appletalk,comp.sys.ibm.pc,comp.sys.mac,comp.sys.tandy
Subject: Re: TandyLink adapters for PCs and PhoneNET
Message-ID: <5191@ecsvax.UUCP>
Date: 5 Jun 88 19:11:42 GMT
Article-I.D.: ecsvax.5191
References: <5182@ecsvax.UUCP> <24525@ucbvax.BERKELEY.EDU>
Reply-To: ugogan@ecsvax.UUCP (Jim Gogan)
Organization: UNC - Chapel Hill
Lines: 44

In article <24525@ucbvax.BERKELEY.EDU> preese@dewey.soe.berkeley.edu.UUCP (Phil Reese) writes:
>In article <5182@ecsvax.UUCP> you write:
>>...
>>The problem arises with the point above that the TandyLink cards 
>>come with an APPLETALK (sorry, that's LOCALTALK) connector built 
>>onto the card.
>Now how to determine which way it works.  Do the instructions talk about
>adding a resistor at the ends of the net or do they not mention anything
>about this but do talk about a 1000' limit to the length of the net?  If
>they talk about adding a resistor then you are in fine shape (it is very
>similar to PhoneNet) if it is limited to 1000' then procede with caution.
 
Well, based on your comments, it sounds like we should "proceed with
caution".  The TandyLink documentation does NOT talk about adding
a resistor, but DOES talk about a 1000' foot limit.  Drat!
I would guess then that the TandyLink board is a COMPLETE LocalTalk
"clone", rather than being in any way similar to PhonNet.
 
>Question: Does the TandyLink work at TOPS's high speed mode?  Between
>PCs, TOPS can run at 768k baud.  If it is able to work at that speed
>then you have really found something!
>
Yes, the TandyLink card (like the TOPS FlashCard) can work at
the high speed mode (770Kb) if it is communicating with a
similar card or automatically switches to the lower speed (240Kb)
if not.  I too thought we had really found something, but may
only be useful for those instances where there are a very few
number of PCs to connect to a network of Macs.  Just goes to
show, if something looks like it's too good to be true, it
probably is.
 
>Phil Reese
>School of Ed, UC Berkeley
>preese@garnet.berkeley.edu

-- Jim Gogan
   Microcomputing Support Center
   Univ. of North Carolina

-- 
     Jim Gogan                             mail:ugogan@ecsvax (UUCP/BITNET)
     Microcomputing Support Center
     University of North Carolina at Chapel Hill
     Chapel Hill, NC  27599