How did DC Unit on PDP11 work??

From: Bill/Carolyn Pechter <pechter_at_shell.monmouth.com>
Date: Wed Sep 9 18:19:26 1998

>
> I was thinking about this the other night {it was a slow night :-)} --
> how does the DC option on the PDP-11 work (besides the obvious)? My 11/34
> has a DC light on the panel, but I know that my unit did not come with a
> battery backup unit.
>
> What was involved with the DC option? Was it a special PSU and
> batteries? Or was it a board and separate UPS?
>
> Just curious...
>
>

Working from distant DEC Field Service memory...

It was a wiring harness, batteries, a couple of jumpers on the
backplane and a regulator.


Bill


+---------------------------------------------------------------------------+
| Bill and/or Carolyn Pechter | pechter_at_shell.monmouth.com |
| Bill Gates is a Persian cat and a monocle away from being a villain in |
| a James Bond movie -- Dennis Miller |
+---------------------------------------------------------------------------+
Received on Wed Sep 09 1998 - 18:19:26 BST