QBus termination?

Doc Shipley doc at mdrconsult.com
Mon Feb 7 17:37:10 CST 2005


Patrick Finnegan wrote:

> On Monday 07 February 2005 18:18, Vintage Computer Festival wrote:
> 
>>So what's the definitive requirement for terminating QBus?  I get
>>various non-answers from various people and it's quite annoying.
>>
>>How does one properly terminate Qbus?
> 
> 
> The CPU terminates one end, and no terminator is required at the far 
> end, unless you connect chassis together.  No machine I've ever seen 
> has had a QBUS terminator in it (other than the termination the CPU 
> provides)

   But some Qbus boards do terminate the bus.  RQDX3 does, and I'm 
fairly certain the RQZX1 does as well.

   I also have a Qbus terminator board.  No bootROMs or diags, just the 
terminator.


	Doc



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