22 Jan
2002
22 Jan
'02
9:56 a.m.
On January 22, Tothwolf wrote:
Uhh, they convert RS232 to a current-loop interface? :)
PDP8, early PDP11, and lots of other systems used 20mA (and other)
current-loop interfaces before +-15V RS232 came into vogue.
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
- Black Box
232/CL-E RS232 to Current Loop adapter -- modem-sized box
What are these for? I've got two or three of these units on a shelf behind
some boxes. 
22 Jan
22 Jan
10:16 a.m.
On Tue, 22 Jan 2002, Dave McGuire wrote:
On January 22, Tothwolf wrote:
Uhh, they convert RS232 to a current-loop interface? :)
PDP8, early PDP11, and lots of other systems used 20mA (and other)
current-loop interfaces before +-15V RS232 came into vogue.
I'm afraid I just haven't been exposed to enough of the older gear yet :)
-TOth
- Black
Box 232/CL-E RS232 to Current Loop adapter -- modem-sized box
What are these for? I've got two or three of these units on a shelf behind
some boxes.
8375
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mcguire＠neurotica.com -
tothwolf＠concentric.net