13 Jun
2001
13 Jun
'01
6:16 a.m.
On Jun 13, 6:47, Ethan Dicks wrote:
Does anyone know of a modern connector that will
substitute for a real
DEC connector? The H-11 used a different one for its Q-bus backplane,
for example.
In case anyone who knows connectors doesn't know
the DEC specs - the pins
are on 0.125" centers and the edge connector is somewhat taller than, say
an ISA connector or a 5.25" floppy edge connector (it's 0.625", but the
Heath connector does not accept the entire length)
Neither does the genuine DEC connector. The contacts in the connector only
use the lowest 0.475" of the card edge, although the contact area extends
to 0.56" from the edge of the board. The housing part of course is shaped
to ensure you don't plug a dual- or quad-height card in backwards. Anyway,
I just checked on an S100 edge connector (same 0.125" pitch), and its
contacts are the same depth as the DEC ones. S100 connectors are getting
expensive thses days, so cutting them up probably isn't a good option, but
I'm sure any standard 1/8" pitch edge connector will do if you're not
worried about the keyways.
--
Pete Peter Turnbull
Network Manager
University of York