Re: USB-serial adapter for CentOS 7

[H <agents@xxxxxxxxxxxxxx>]

On 07/08/2020 11:58 AM, John Pierce wrote:
> On Wed, Jul 8, 2020 at 8:46 AM H <agents@xxxxxxxxxxxxxx> 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.
>
>
I forgot to mention that I do have the serial cable for the APS UPS since the previous computer it supported did have a serial port. Thus, the only issue should be whether to buy a USB-serial adapter for the computer, or a card with a serial port.

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