DL11 M7800

[william degnan]

On Wed, Jun 15, 2016 at 1:01 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
wrote:

>     > From: William Degnan
>
>     > Does anyone have a M7800 (DL11) set for 9600 b N71 or N81 jumper'd
> with
>     > the default address for use as a serial terminal interface?
>
> Yup. (And BTW the baud's not jumpers, it's the dials.)
>


You are correct, dials are in the 9600 b position for my crystal.


>
>     > I understand the other jumpers on the card, but the address and
> vector
>     > jumpers confuse me.
>
> Join the crew... :-)
>
> The simple rule on the DL11 is that vector jumpers are the inverse of
> address
> jumpers: for the vector, jumpers are 'in' for '1', and for the address,
> they
> are 'in' for '0'.
>

OMG


>
>     > I think for use as a simple serial terminal interface I need to
> jumper
>     > "in" *A9, A7, A5, A4, A3* ... correct? Vector jumpers *V6, V7 "*in" .
>
> You mean for the console, right? (All DL11's are 'simple serial terminal
> interfaces' ;-).
>
>
Yes, so I can use a terminal with the machine, I need a working terminal.


> The jumpers you give are for DL11 #1, address 776500, vector 300. For
> 777560/60 (standard for the console), you want A7/A3 and V4/V5 'in'.
>
>
I think you mean 60/64, right?


>         Noel
>


thanks
b