On 25-May-20 09:29, Bob Supnik wrote:
> Looking through the XVM/MUMPS15 listing, I saw that the timesharing
> terminals were attached via a DC01 communications multiplexer. There's
> no reference to such a device anywhere in the 18b literature on
> Bitsavers.
>
> Because the PDP15 is a contemporary of the PDP8/I and the KI10, I
> thought it might be a variant of their multiplexers, but I can't find
> a match.
>
> Another mystery.
>
> /Bob
>
The DC01 was a CSS product. Option/module reveals that it was adapted
for the 8, 9, 15 & 11. You may find some hints in the other families,
though as you know, registers tend to have family ties...
* DC01-AA 8 line scanner full duplex tty &/or EIA \
* DC01-AB 8 TTY scanner half duplex \ 8 POS
* DC01-AC 8 Asyn scan full duplex EIA 3 cycle /
* DC01-AL Full duplex line unit for DC01-AA
* DC01-BB 8 TTY line scanner 1/2 duplex echo PDP-9
* DC01-EA 8 Line scanner full duplex (tty &/or
EIA) \
* DC01-EB 8 TTY line scanner half duplex echo +
logic \ 15
* DC01-EC 8 Line async scan full duplex EIA 3
cycle /
* DC01-ED 8 Line async scan, half duplex echo tty or EIA Sep. speeds /
* DC01-FA 8 line scanner full duplex (TTY &/OR EIA) \
* DC01-FD Improved DC01-FA \ 11
* DC01-FJ 32 line scanner, full duplex, can use any DF11 interface
Responsible engineers: B. Vachon, Bill Weiske, D. Hopkins, J. Larkin,
Reg Wetherall, J. Stefanowicz, Russ Moore
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