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-boun...@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" <fswo...@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? -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Terminals Wiki <http://terminals-wiki.org> The Computer Graphics Museum <http://ComputerGraphicsMuseum.org> Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com> _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh