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From: dyer@spdcc.UUCP
Newsgroups: comp.dcom.lans
Subject: DMR/DMV "maintenance mode" compatibility with other sync i/fs
Message-ID: <473@spdcc.UUCP>
Date: Thu, 11-Dec-86 02:18:33 EST
Article-I.D.: spdcc.473
Posted: Thu Dec 11 02:18:33 1986
Date-Received: Sun, 14-Dec-86 09:51:38 EST
Organization: S.P. Dyer Computer Consulting, Cambridge MA
Lines: 19

comp.dcom.lans is not QUITE the right group for this, but seeing as
its parent group doesn't exist, nor does net.dcom, it's all I've got.

Is it possible to connect a DEC DMR-11 or DMV-11 synchronous interface
running in maintenance mode to another vendor's synchronous hardware?
I'd like to hope that the only problem is the mini-header which the
DMR prepends and strips off which contains a checksum, and that in
other respects, the data stream could be read by most any synchronous
cards.  Information on the format of the stream (HDLC bit-stuffing?
byte-synchronous?) would be helpful, as would the exact format of
the packet which gets sent by the DMR hardware.

Just to clarify my question, I'm not interested in higher-level protocol
issues, and maintenance mode turns off DDCMP.

-- 
Steve Dyer
dyer@harvard.HARVARD.EDU
{linus,wanginst,bbnccv,harvard,ima,ihnp4}!spdcc!dyer