From: "Ethan Dicks" <ethan.dicks at
gmail.com>
On 4/6/07, Pete Turnbull <pete at dunnington.plus.com> wrote:
4) I
believe that there is supposed to be some type of cover over the
top of the RX02.
Not normally. I've never seen one with anything over the top, except
for one in a tabletop case, of course; and the drawings don't show
anything of the sort. I can't see how you'd fasten any sort of top cover.
I've seen an aluminum "cover" for RX02s - more of a nut/bolt shield
than a real cover. It mounts to the rack and stays behind when you
extend the RX02. I think it's just there to ensure debris from
further up the rack doesn't land on the back of the bare circuit board
in the RX02 and cause a short. My memory of them (the few times I've
seen one installed) is that it's gold-anodized aluminum. It doesn't
make a tight fit with the vertical surfaces of the RX02 frame, so I
doubt it's an effective EMI shield.
Hi
All it has to do is reduce the magnetic field. I doubt there is much
issue with an electrical field. Most recording machines are quite sensitive
to stray magnetic fields while recording.
I'm not sure how much aluminum would reduce magnetic fields unless
it was high frequency. I'd suspect that most 60 cycle would go right
through it with little loss.
Dwight
If I find one in one of my racks, I'll take a picture, but it's hardly
an essential item. Most drives I've seen probably never had one.
-ethan
_________________________________________________________________
Need a break? Find your escape route with Live Search Maps.
http://maps.live.com/?icid=hmtag3