[Elecraft] RS-232 Compatibility Across Elecraft Devices?

[Don Wilhelm]

Jon,

In the K2 and K3, the levels are "real RS-232",  For the others, while 
they will tolerate up to the maximum RS-232 levels (+/- 25 volts) the 
driving signal will not go negative, and the positive excursion is only 
5 volts.

73,
Don W3FPR
On 11/9/2012 3:38 AM, Jon K Hellan wrote:
> Electrically, are the "real" RS-232 (+/- 12V) or TTL level (0 / 5 V)?
>
> Jon LA4RT
>
>