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Forum Discussion
PoE doesn't start_GS308EP
We use the GS308EP to manage 2 differents VLAN in our custom system. the port 1 is used to power on a RFID reader (FEIG MR102), the others ports are for classic ethernet commnication. We configu...
If we turn our system ON, by starting it from the inverter (with the circuit breaker open), the PoE launches without a problem, in all cases.
If we turn our system ON, with the circuit breaker close and we start the inverter, the PoE doesn't launch, and if we open the circuit breaker, the supply from the inverter takes over and the PoE launches immediatly
What happens if you power the GS308 directly from the breaker (bypassing the inverter)?
We test that too and directly from the breaker the PoE doesn't launch.
Fun fact, when we open the breaker, we could see briefly the green light of the port 1 lit, but of course lit off because the circuit is now open.
We test that too and directly from the breaker the PoE doesn't launch.
So the problem is with the quality of the mains power, not the UPS. The UPS is just passing along the mains power when the breaker is closed.
Have you tried testing the switch using a different outlet?
You could do a risk-buy of a new power adapter for the switch. Or maybe try a power conditioner on the mains.
Yes we perfom the same kind of tests on another outlet in a different room, and the issue followed.
What bother us the most is that the issue seems to be replicant but not at first use; It is just that at a time undefined, if the system has to be restart, if the switch was in a specific state, the PoE will not start following the launch procedure defined.
We checked the ground on different spot of our system, because we red that it can cause trouble with the PoE if not stabilze correctly but nothing were revelant.
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