Current Loops and TTYs (was Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!)
ethan.dicks at gmail.com
Tue Feb 14 15:34:03 CST 2017
On Tue, Feb 14, 2017 at 4:22 PM, Philipp Hachtmann <hachti at hachti.de> wrote:
>>> PS: Add a 45.5 baud serail port. Control everything with a 5 level
>>> TTY. :)
>> Dirty casual. 20mA current loop or nothing.
> The 45 baud machines do NOT run on 20mA. They usually run on 40mA :-)
The M19 is 60mA at 100VDC... takes a bit to pull that relay.
> 20mA is the domain of model 28, 32, 33 etc.
Yep. That's all I have in my own pile... (33 and 35).
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