> There are very strict limits to how many units you can have powered down > on an IEEE-488 bus and it depends on the bus topology etc. It is also > pretty easy to violate the topology constraints if you don't stick > closely to star or line configurations. > > It's all in the standard somewhere.
Hmm. From what I can tell via Google, the rule is that you're supposed to have two-thirds of the devices on the GPIB bus powered on. Good to know, even though most of the devices I have don't seem to enforce this guideline. I'll refrain from editorializing on the wisdom of designing an interconnect bus with a rule like that, as foaming-at-the-mouth howling rants are OT for the time-nuts list. -- john, KE5FX _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
