27 Dec
2012
27 Dec
'12
7:10 a.m.
On 12/26/2012 12:05 PM, Cindy Croxton Electronics Plus wrote:
I have an entire case of adapters, made by Energy
Transformation Systems,
Inc.
I called their tech support this morning, and was told that these were made
for Token Ring connections, using IBM Type 1 or Type A cables?
There are 2 different PN:
EB-TRT-I has impedance matching, uses pins 3,6 and 5,4
EA-DATA-U does not have impedance matching, also uses pins 3,6 and 5,4
These have female RJ45 on one end. Apparently they are used to connect to a
MAU?
They look like these http://www.cuc.eu/en/li/conrj/rjembase/879700.html
But use pins 3,6 and 5,4.
Anybody trying to resurrect any old TR stuff?
I have some TR stuff that I hope to bring up at some point. I'm
looking for an IBM 3174-family attachment controller with Ethernet to
handle some 3270-family terminals, but I would settle for a TR version
(I have a MAU) and use a translational bridge to get there.
None of the stuff I'd be using is RJ45-based TR though.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA