Looking into providing backup power for 25ish security cameras over a few switches... what is a cost effective way of doing this?
I've just looked at a 2000w battery from CyberPower (PR2000ERTXL2U) that is around $1100AUD but that can only get me 215 minutes of backup @ 50w of draw. I've estimated 10w from switch and between 50w and 80w (depending if it has 4 or 7 ports utilising POE). I've estimated also a draw of 10w from a Dahua IPC-HDW2421R-ZS, specs website says 9.75 is this max? It doesn't list nominal/average power usage. Have I greatly over estimated my power draw?
... an additional $800 for a BP48VP2U02 will boost a PR1500ERTXL2U, PR2000ERTXL2U, PR2200ERTXL2U and PR3000ERTXL2U up to around 650-660 minutes, which in theory is MUCH more ideal.
Is this the price you HAVE to pay if you want decent backup times, or are there other ways? Additionally security alarm systems are powered by 12v batteries... why don't they use UPS, is it because the value/efficient isn't matched or does it just come down to load?
I've just looked at a 2000w battery from CyberPower (PR2000ERTXL2U) that is around $1100AUD but that can only get me 215 minutes of backup @ 50w of draw. I've estimated 10w from switch and between 50w and 80w (depending if it has 4 or 7 ports utilising POE). I've estimated also a draw of 10w from a Dahua IPC-HDW2421R-ZS, specs website says 9.75 is this max? It doesn't list nominal/average power usage. Have I greatly over estimated my power draw?
... an additional $800 for a BP48VP2U02 will boost a PR1500ERTXL2U, PR2000ERTXL2U, PR2200ERTXL2U and PR3000ERTXL2U up to around 650-660 minutes, which in theory is MUCH more ideal.
Is this the price you HAVE to pay if you want decent backup times, or are there other ways? Additionally security alarm systems are powered by 12v batteries... why don't they use UPS, is it because the value/efficient isn't matched or does it just come down to load?