| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 2017.1 | Contact Power Supply GURU DELNI::MACARTHUR | NETCAD::BATTERSBY | | Wed Feb 15 1995 15:39 | 7 |
| Dave - You might try contacting Bob Macarthur on DELNI::MACARTHUR
He's the resident expert here in HUB Engineering on the Power Supply
System. Tell him about what you're seeing and maybe he can tell you
if what your customers are seeing is a known problem or something
new.
Bob
|
| 2017.2 | | DABEAN::REAUME | my 2 vices - GTS and coasters | Wed Mar 22 1995 10:23 | 8 |
|
I have a DEChub 900 that works fine unless you remove one of the
power supplies and then re-insert it. When you do that the whole
hub reinitializes. The other power supply slot (0) doesn't do this.
We tried another power supply in the slot and it did the same thing!
Is this a backplane problem?
-John R-
|
| 2017.3 | Insert/remove too fast? Yep, our PSupplies died too | PTOJJD::DANZAK | Pittsburgher � | Wed Mar 22 1995 11:06 | 22 |
| (It could be an old version of hub management code....r u running 3.1?)
I think that 3.1 has some weird power management problems with it not
being able to ID and power up modules....at least I've experienced that
in our demo room.
Also, if you remove/insert too fast, hub management may get
confused...I think that it goes thru a cycle or so before it figures
out that the supply is dead. I've had similar things happen in demos
and taken more TIME between removal and insertion - it seemed to go
away.
Dave - yes - we've had similar failures with PSupplies for the County
here in Pittsburgh....I actually had one do sparks and zaps. (not to
mention pe-eeew) Am sending it back to LKG for them to play with.
John - u coming back to Kennywood for the coasters? (grin) They're
putting in a pool now.
ttfn,
j
|
| 2017.4 | | DABEAN::REAUME | my 2 vices - GTS and coasters | Thu Mar 23 1995 15:03 | 10 |
|
I'll check the revs out next time on site. We did try varying the
time between removal and re-insertion. It didn't help unless you're
talking leaving it out for more than three minutes or so. I'll post the
info in here soon.
Is there any decent documentation on the DEChub 900? The more I work
with these, the more I realize what I don't know.
|
| 2017.5 | Power Supply only handles 100 insertions before failure. | ROMEOS::HARRIS_MA | Sales Executive II | Fri Mar 24 1995 13:33 | 8 |
| FYI. I've been told that the Power SUpply connectors have a design
insertion of about only 100 cycles between failures. That means you
don't want to insert ANY power supply into a given hub slot more than
100 times before expecting a possible failure...
So I've been told.
Mark
|