Power Efficiency Help Required

[seancsmith89]

Hi all,

I am wondering if anyone can help me in anyway with a power & efficiency calculation; I am working on a project where we will be installing one of these switches in a sealed, metallic cabinet with absolutely no ventilation/airflow or fans inside it either. Inside the cabinet we will installing an Ultralink FX80CN which will be running a total of 6 devices via POE

5x Radios @8W/24Vdc (0.33A total = 1.65A)
1x OSDR @53W/48/v (1.1A)

So power out of this switch will be approx 93W @ 1.75A

THe switch has a baseline of 8W and is powered by a DC supply which is UK mains (230V) rectified to 48v rectifier is approc 93% efficient.

Is anyone able to point me in the right direction for getting the efficiency of the switch, from what I have put above, and point me in the direction of the how to complete the power calculations.

Thank you all kindy in advance,


Sean :)