Path: utzoo!utgpu!watmath!clyde!ima!spdcc!dyer
From: dyer@spdcc.COM (Steve Dyer)
Newsgroups: comp.dcom.modems
Subject: Re: ARK LDM-4
Message-ID: <2232@spdcc.COM>
Date: 8 Dec 88 16:55:45 GMT
References: <8811301805050FA.GUWI@RAI.CC.FSU.EDU> <8157@megaron.arizona.edu> <11@dsinc.UUCP> <3633@mtuxo.att.com>
Reply-To: dyer@spdcc.COM (Steve Dyer)
Organization: S.P. Dyer Computer Consulting, Cambridge MA
Lines: 19

In article <3633@mtuxo.att.com> qeds@mtuxo.att.com (01226-E.SCHULZ) writes:
>If you have a non-loaded metallic 4-wire Local Area Data Channel
>(LADC), why use a modem?  Send your data digitally end-to-end.
>Our group developed the AT&T 2500/2600 Data Service Units for
>DDS, and these things can be used on LADC channels.  Mean time
>between DSU failures is around 17 years.

Can these be used legally on a LADS TelCo (I assume NeTel nomenclature
for the same as LADC) circuit which runs from premise--CO--premise?
I'm using a pair of 19.2kb Gandalf LDS309A data sets which do the
job nicely, but a faster data rate would be great, assuming I can
get appropriate synchronous serial interfaces which will do the job.
Also, what is the cost of the 2500DSU?  I'm sure many of us would be
interested to know.

-- 
Steve Dyer
dyer@harvard.harvard.edu
dyer@spdcc.COM aka {harvard,husc6,linus,ima,bbn,m2c,mipseast}!spdcc!dyer