1 Aug
2011
1 Aug
'11
10:26 p.m.
If the RK11-D in the last thing on the bus, remove the M930 terminator
and place the BC11-A cable going to TM11 there, and then terminate the
Unibus in the TM11. The RK05 can only be connected to another RK05
(or RK03), or the terminator.
I hope that solves your problems, and good luck, that's a nice system.
Paul
On Mon, Aug 1, 2011 at 4:40 PM, B M <iamvirtual at gmail.com> wrote:
I am in the process of adding a TMA-11 tape controller
with a TS03
tape drive to my PDP-11/10 system
which has a single RK05 drive attached. ?There no other devices attached.
I removed the Unibus terminator out of the RK05 and connected the BC11
cable in it's place. ?The cable
then goes to the TMA-11 controller. ?The TMA-11 controller does have a
terminator as well (ie. it is the
end of the Unibus).
Previously, the PDP-11/10 and RK05 worked as expected.
Now that the TMA-11 controller is connected, the RK05 drive does not
spin up. ?When the 'Load' button is
pressed on the RK05, I do hear the door lock solenoid engage, but the
drive spin up. ?If the system is
powered down and the cable to the TMA-11 is disconnected, the drive
does spin up.
Any ideas on why the RK05 would refuse to spin up when connected to
the TMA-11? ?I am just looking
for some pointers to narrow my search.
Thanks!
--barrym