Trying to get my RLV11 working
bqt at update.uu.se
Thu Oct 29 13:26:43 CDT 2015
On 2015-10-29 18:45, Ethan Dicks wrote:
> On Thu, Oct 29, 2015 at 1:37 PM, Ben Sinclair <ben at bensinclair.com> wrote:
>> I only have one RL02, so I think that cable should work. I ordered it anyway!
> That cable (BC80M) will work even if you get a second drive. No
> matter how the first drive is attached to the controller, to add a
> drive, you remove the terminator from the first drive, add a
> drive-to-drive cable between the two drives, then move the terminator
> to the second drive.
> Can anyone with experience from back in the day comment on why there
> is a BC80M? Why all the controllers didn't just use the flat cable to
> a cab kit and a drive-to-drive cable? Cost? Length? EMI reduction
> from running the BC80M into a BA23, etc, and only pushing shielded
> cable outside the CPU enclosure? Is the flat-cable-and-cab-kit
> pre-FCC only?
When you had machines with an RL-drive "internal", you normally did not
use a cab kit. That was for external drives. The same is true for all
other DEC drives I know as well. I've certainly seen direct cabling
internally for SDI drives as well as external cabling for RX50 and TK50.
But the only machine I know have an "internal" RL drive is the VAX-86x0,
but maybe there were others as well...
And no, the VAX do not have a cab kit for the RL drive. Direct cable
from the RLV21 to the RL02.
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