[GreenKeys] [Bulk] Re: [Bulk] Re: A reliable current-loop-to-RS232 converter

[Dave Horsfall]

On Wed, 7 Oct 2015, Jeffrey D Angus wrote:

> No offense to John, but I don't trust an RS-232 level to be "right" 
> every time. The specification calls for a voltage level of 3-15 volts.

Even more hilarious are alleged RS-232 receivers, which turn out to be 
TTL...

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."