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From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.dec
Subject: Re: Connecting Thin Wire to DELNI
Message-ID: <9256@cbmvax.commodore.com>
Date: 9 Jan 90 04:50:45 GMT
References: <1990Jan8.213749.24018@trigraph.uucp>
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 34

In article <1990Jan8.213749.24018@trigraph.uucp> bruce@trigraph.UUCP (Bruce Freeman) writes:
> We currently have several computers all connected to a DELNI by nice thick,
> expensive transceiver cables. We are running out of room on the DELNI and I
> want to add a cheaper thin wire branch to it. How do I connect this thin wire
> network to my DELNI? Can I just use a DESTA or do I need to use a repeater
> such as a DESPR? The DEC Networks Guide is vague (in my opinion) on how you do
> this saying a DESTA can be used to connect a terminal server to thin wire or
> that you can connect multiple DESPRs to a DELNI but not explicitly saying if
> you want to connect thin wire to a DELNI here is what you do. 

You don't mention if you are running the DELNI in a stand-alone mode or
whether it is connected to a real piece of ethernet...

Iff I read the rules correctly:

You can use a DESTA to connect the "transceiver port" of the delni to a
thin-wire ethernet with no restrictions except the ~600 ft length of the
single thin-wire ethernet segment.  Additional devices, including more
DESTA/DELNI pairs can be connected to the thin-wire segment.

You can't plug a DESTA into one of the 8 output ports - this is equivalent
to plugging two transceivers together...

You can hang a DESPR off the DELNI if the DELNI is not connected to a
real ethernet, or if it is and you accept special length restrictions
on the real ethernet.

You can cascade two DELNI's (for 7 more ports) as long as they aren't
connected to a real ethernet.

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)