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

[Hittner, David T [US] (MS)]

Richard,

You weren't very clear identifying the objects of the "What are these?" question.

I'll define all of the terms for clarity.

DS200 - Digital DecServer 200, an old terminal server with 8x 25-pin RS232 serial ports with modem control
DS300 - Digital DecServer 300, an later model terminal server with both modem control and non-modem control variants
DS500 - Digital DecServer 500 and 550, a much later and larger terminal server that could serve more serial lines (32+), using both modem control and non-modem control cards
68000 - Motorola 68000 processor
68020 - Motorola 68020 processor
KDJ11-SD - Digital KDJ11-SD processor, which is a later PDP-11 processor; the KDJ11 processors are also known as the J-11 series chips
AM7990 (LANCE) - AMD Ethernet chip, commonly called the LANCE Ethernet controller in documentation
TC23SC241AP - Toshiba Ethernet chip, higher performance than the LANCE
2681 DUART - Philips Dual Universal Asynchronous Receiver/Transmitter (DUART) , a serial (RS232) chip
CXA16/CXB16 - a Digital 16-port serial board that plugs into Digital Q-BUS and S-BUS based systems (VAX, PDP11, and DecServer 5xx)

Dave


-----Original Message-----
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Richard
Sent: Monday, April 10, 2017 5:26 PM
To: SIMH
Subject: EXT :Re: [Simh] VT240, VT340 and DS200/300 HW specs info

In article <000001d2b0ef$c2cd4330$4867c990$@verizon.net>,
    "Tim Stark" <fsword7 at verizon.net> writes:

> 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. 

What are these?
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