H750 (PDP-11) power on?

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Wed May 26 18:24:21 2004

>
> > What model of PDP-11 is this?
>
> 11/10 which I've read is very similar to an 11/05.

It is. The only difference is the name on the panel and what originally
came as part of the package (IIRC the 11/10 was intended for end-users,
the 11/05 for OEMs). There is no practical differnce between them

The power switch on the 11/10 is a yale-type wafer tumber lock on the CPU
front panel.


On the 5.25" box, there are 2 microswitches for the power switching
function (and one for the panel-lock function to disable the toggle
switches). One directly switches mains to the CPU power supply. The other
connects the appropriate pair of pins together on the little 3 pin sockets
on the back of the CPU box. You link one of those to the similar
connector on the power controller relay box with a straight-through cable.

I assume the 10.5" box has a relay unit under the transformer, like on an
11/34. Tere are still some 3-pin connectors on the back that you link to
the power controller.

Oh, check all the circuit breakers are on. It's easy to knock on to the
'off' postiion.

-tony
Received on Wed May 26 2004 - 18:24:21 BST