Re: USB-serial adapter for CentOS 7

[H <agents@xxxxxxxxxxxxxx>]

On 07/08/2020 06:55 PM, H wrote:
> 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.
>
Closing out the above. I bought a Belkin USB-to-Serial adapter and after also getting the correct APC cable for this old APC BackupUPS things work as intended. Thus, no issues with the USB-to-serial adapter in this setting.

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