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From: haynes@ucscc.UCSC.EDU (Jim Haynes)
Newsgroups: comp.misc
Subject: Re: Computer Folklore
Message-ID: <6240@saturn.ucsc.edu>
Date: 7 Feb 89 05:00:17 GMT
References: <221@imspw6.UUCP> <873@sceard.UUCP>
Sender: usenet@saturn.ucsc.edu
Reply-To: haynes@ucscc.UCSC.EDU (Jim Haynes)
Organization: California State Home for the Weird
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In article <873@sceard.UUCP> mrm@sceard.UUCP (0040-M.R.Murphy) writes:
>I seem to remember that it was possible to change a $400 DL11 serial interface
>into a $500 DL11-E serial interface with modem control by removing a jumper.
>At about $100.00/cm of wire not installed, that was interesting pricing.

Yes, I made that conversion on a couple of them myself.  The current-loop
DL11, at least the ones delivered to us, were fully populated with chips,
including the RS232 drivers and receivers.  It was just a matter of which
pins you used in the cable that plugged into a flat-cable connector on
the board.  If you ordered a DL11-E it came with a modem cable.  If you
ordered the current-loop model it came with about a foot of cable ending
in that ghastly Mate-n-Lock connector they used with current loop terminals.
Probably the modem cable was 25 feet long (?), so that's only $4 a foot
for the extra wire :-(

haynes@ucscc.ucsc.edu
haynes@ucscc.bitnet
..ucbvax!ucscc!haynes

"Any clod can have the facts, but having opinions is an Art."
        Charles McCabe, San Francisco Chronicle