[COFF] DEC terminal line driver chips?

[Dave Horsfall]

On Thu, 29 Apr 2021, Clem Cole wrote:

> That said before you open up the case, I make sure you are cabled 
> correctly.   If you are using so-called 3-wire cables, then you need to 
> ensure RTS/CTS [4-5] are strapped and DSR/DCD/DTR [6/8/20] are also 
> strapped.   The terminal will ignore any I/O unless it sees these pins 
> asserted. 

I used to do that so often for so many terminals that I could practically 
do it in my sleep...  Having the correct crimping tool also helped :-)

-- Dave, who has yet to see a full implementation of RS-232 i.e. the 
secondary channel etc