8 Jul
2020
8 Jul
'20
5:58 p.m.
On Wed, Jul 8, 2020 at 8:46 AM H agents@meddatainc.com wrote:
I believe I mentioned that the UPS has the serial port, the computer thus has USB.
yes, but is it 'basic serial UPS' or is it 'enhanced serial UPS' ? the former do NOT use the rx/tx data of the serial port at all, they ONLY use the serial port control signals, and they probably will NOT work with a USB port because they require very specific behavior from those signals at power up and reboot times.
the latter DO use the serial data, and may work with USB serial.
--
-john r pierce
recycling used bits in santa cruz