Johnny wrote:
> Actually, the 11/40 FE was also the comm processor for all terminal lines.

IIRC, a DCxx or DNxx subsystem using an 11/40 (or 11/34) was always used
for the KL10-based DECSYSTEM-20 terminal lines other than the console.
RSX20F wasn't really designed for handling lots of terminal lines, while
the DCxx and DNxx software was. I'd have to check the LCG configuration
manual to be sure.

On the KS10, ISTR the terminal muxes being DZ11s on the Unibus, directly
controlled by the KS10 CPU.
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