Double-high vs Triple-high VME slots
Patrick Goebel
lindy!romeo at lindy.stanford.edu
Fri Mar 2 17:04:32 AEST 1990
The SPARCseries 300 machines come equipped with both "double-high (6U)"
and "triple-high (9U)" VME slots. In the latest Catalyst catalog, a great
many 3rd party VME hardware products require a "double-WIDTH to
triple-WIDTH VME adapter board".
Q1. Are "double-HIGH" and "double-WIDTH" synonymous? Likewise for
"triple-HIGH" and "triple-WIDTH"?
Q2. Does the Catalyst requirement mean that
(a) the 3rd party product is equipped with a double-width interface that
needs to be adapted to a triple-high VME bus on the Sun, or
(b) the other way around?
Q3. If the answer to Q2 is (a), does this mean that such a product would
connect directly (i.e. without an adapter) to a double-high VME slot on
the Sun? Likewise if the answer to Q2 is (b)?
I promise my first-born child to anyone with the (correct) answers.
Patrick Goebel--romeo at lindy.stanford.edu
CASBS--Reluctant SysAdmin
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