19 Jul
2004
19 Jul
'04
11:38 a.m.
On Mon, Jul 19, 2004 at 07:34:06PM -0400, Ashley Carder wrote:
Is the cable that connects the RK05 drives to the
RK11-D unibus
controller card set the same as the one used to connect the RK05
drive to the RK8-E omnibus controller card set?
No. The cables are identical for an RKV11D (Qbus) and RK8E (OMNIBUS).
To connect an RK11D to the first RK05 drive, you'll need the same
type of mylar cables with integral dual-height ends that you use
to connect two RK05 drives together, or two DD11CK or DD11DK Unibus
backplanes together in different cabinets (a long version of an M9302,
but I'm forgetting the official name).
In other words,
if I have two RK05 drives and the cables, will they connect to
an RK11-D if I can find one?
If you have two drives and *two* white mylar cables, yes. If you
only have the one white mylar cable, then you will need another
one to hook up the second drive to the first one.
Tony, based on your previous post, it sounds like I
may need an
expansion box to put the RK11-D backplane and card set into.
Perhaps... if you don't have room in your CPU chassis for a 4-slot
backplane (same size as a DD11CK, 1/2 size of a DD11DK), then you
will need another BA11 (and another mylar cable)
I do have numerous empty slots in my 11/34 backplane
right now,
but I'll have to see how many and I need to check on what all's
in there and the power requirements for the RK11-D.
Empty slots in the DD11PK CPU backplane won't help. You can put
"SPC" (Small Peripheral Controller) cards in there like an LP11
or an RX11, or even a RL11. What you need is an empty mounting
spot in the CPU chassis _next to_ the DD11PK and an Unibus-to-
Unibus jumper (M9302?)
I do have
another empty BA11-K expansion box with a DD11-K backplane in it,
and I'm not using it right now. It's just sitting empty, not
plugged in, in an H960 cabinet.
That could be handy. You may or may not need the DD11DK backplane
in that BA11-K, but that could be a place to put an RK11D backplane
once you find one.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 19-Jul-2004 23:30 Z
South Pole Station
PSC 468 Box 400 Temp -89.3 F (-67.4 C) Windchill -121.4 F (-85.3 C)
APO AP 96598 Wind 6.3 kts Grid 081 Barometer 642.9 mb (12059. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html