26 Dec
2012
26 Dec
'12
9:20 a.m.
On 26/12/2012 17:05, 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 a Token Ring network but its all plain RJ45 so really "modern". I
would have thought these were more relevant to preserving or documenting
the IBM Cabling System. I wonder if any one is interesting in
preserving or re-creating this type of network. Does Al at CHM, the
folks at MARCH or TNMOC have any plans to demonstrate this sort of early
structured cabling systems,,,,
I confess, these are way beyond what I have any knowledge of!
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
(830)792-3400 phone (830)792-3404 fax
AOL IM elcpls
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