[GreenKeys] ASR33

[Larry Tighe]

What's a PDP?  My advanced training stopped at 1970's TTY's LOL

lar

Subject: Re: [GreenKeys] ASR33


>I am one of the classic computing guys here on this list...  although I
> do not have any PDP-11 stuff currently, I have hooked the ASR33 to my
> precious Altair680 and have not smoked it.
> 
> You need to make sure the ASR33 is wired for passive loop.  Do not
> allow the '33 to source the loop current as it will do so at 130 to 160v
> and whatever the serial interface is in the PDP, it might not be happy
> with that.
>