[geeks] Qbus Backplanes

Jochen Kunz jkunz at unixag-kl.fh-kl.de
Wed Jun 4 10:14:52 CDT 2003


On 2003.06.04 09:59 vance at neurotica.com wrote:

> Hello people.  Is there any way to tell if a backplane is QQQQ or QQCD
> by looking at it, and without having to pull the backplane out of the
> chassis?
Ohm-meter and Qbus wiring diagram? It should be easy to trace the QBus
at the BIAKI (pin AM2) / BIAKO (pin AN2) and BDMGI (pin AR2) / BDMGO
(pin AS2) lines. This lines are the grant lines that go "serpentine"...

> What if I can find the model number of the chassis?
You can put different types of backplanes in a chassis...
--


tsch|_,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/



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