20 Mar
2011
20 Mar
'11
1:21 p.m.
I am not sure about equipment of that date, much
less IBM equipment of th=
at
date, but I'd guess that undervoltage is less
likely to be harmful than
overvoltage. =A0(Some switch mode power supplies may draw too much curren=
t if
the voltage is low, and kill themselves that
way.) =A0So err on the side =
of
lower voltage.
Basically, just about any configuration of wires that are sticking out
of the wall can be hooked up to these controllers, and if they do not
like what they are getting, they will not power up ("power check" in
IBM talk). Just about everything is checked before any of the brains
get any power.
Not that one should be careless here, but IBM mainframe equipment does
offer a bit of comfort when it comes to the smoke test.
Sure, but as you imply, you shouldn't rely on safety devices to get you
out of trouble. In other words, I';d want to make darn sure I'd got thw
wires on the rgith termianls before I applied power, rather tan assuming
it will power-check if I get them wrong.
-tony