Hi folks, I will install (2) Cat 6509 in a distribution room. Which type of UPS is recommended for this? I will have diesel generator available for the facility. I would like to confirm whether people install UPS for these even if you have diesel generator (I think so, but I want to confirm).
We have a UPS capacity issue, so I purchased the APC UPS #SURT5000RMXLT 3500W/5000VA. This allows my core to stay up for approx 60 mins until the motor generator kicks in. It is a little overkill, as the generator takes only about 90 seconds, but it works. What I did is connect one power supply to the APC UPS and the other to a motor generator circuit, so for the time it takes the motor generator to kick in I have power to the core. The reason for this is that the UPS can only have 1 power supply connected to it.
Has worked successfully serveral times so far.
Hope this helps.