[Simh] VT240, VT340 and DS200/300 HW specs info

[Peter Allan]

All of the discussion about DS200 and DS300 terminal servers has reminded
me that I have a DECserver 200 with a faulting power supply that I have
been meaning to fix.

Does anyone know what DC voltage(s) the power supply should generate and
what DC current is drawn. The hardware installation guide for the DECserver
200 gives the AC current drawn from the mains, but it is silent about the
DC voltages and currents.

Any help appreciated.

Peter Allan


On 9 April 2017 at 06:11, Tim Stark <fsword7 at verizon.net> wrote:

> Folks,
>
>
>
> I figured some technical manuals and schematics out.
>
>
>
> DS200 uses 68000 processor with AM7990 (LANCE) and 4 2681 DUARTs.
>
> DS300 uses 68020 processor with TC23SC241AP and 8 2681 DUARTs.
>
> DS500 uses KDJ11-SD processor (11/53) with CXA16/CXB16 devices.
>
>
>
> VT240 uses T11, 8051 and 8251 processors  with 2681 and PD7220 graphics
> processor. It supports up to 64 colors.
>
> Both VT240 and VT241 uses same PD7200 circuit board for monochrome and
> color monitors.
>
> I noticed that VT241 is not implemented on MAME emulator yet.  Should just
> add a few code lines to generate both color and monochromes.
>
>
>
> VT340 uses 8031/8051 processor with 2681 and custom graphics processor. It
> uses 4 DC 322 Viper Gullwin (each bitmap plane).
>
> (I can’t find DC 7051 (timing generator) and DC 322/323 (Adder/Viper) tech
> docs so far).  It uses 4 bitmap planes.
>
> It supports up to 4096 colors but can only select 16 colors from them.
>
>
>
> I first thought VT125 is only monochrome terminal. It supports 64 colors
> with external video connector.
>
> VT100 series technical manual provides some info about VT105 and VT125
> graphics processor.
>
> VT125 is not implemented on MAME emulator yet.
>
>
>
> VT180 uses Z80A processor for CP/M operating system.
>
> VK100 uses 8085 processor with BASIC interpreter.
>
>
>
> _______________________________________________
> Simh mailing list
> Simh at trailing-edge.com
> http://mailman.trailing-edge.com/mailman/listinfo/simh
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20170414/b899d210/attachment.html>