Has trouble with the POE device repeatedly turning on and off.
Has trouble with the POE device repeatedly turning on and off.
I'm troubleshooting a setup with eight 8.5-inch LCDs running as thin clients, connected via POE to a Cisco 3560 switch and RPS 300. The monitor powers up but displays nothing until it restarts repeatedly. Possible issues might include incorrect power configuration, faulty display drivers, or communication problems between the switch and monitors. Check power settings, verify display status, and ensure proper network connectivity.
You should have taken a bit more time to craft your message clearly. From what I understand, you're attempting to power a thin client that needs 12V at 5A—calculated as 12V multiplied by 5A equals 60W—using a Cisco switch. When I checked the Cisco 3560 specifications, it only provides up to 15.4W per port, which is significantly less than the 60W required. That’s why it shuts down.
Confirmed. You require a UPOE capable switch with up to 60W output.
UPOE supports 60W currently, with plans for a 100W version. It delivers 30W across two pairs and another 30W over the remaining pairs. Note that UPOE is still Cisco proprietary, while the open standard 802.3bt is emerging but not widely adopted. See the relevant articles for more details.
I understand. It's usually not my usual area, just standard equipment and basics. Still, I picked up something interesting! Of course, the person would need a splitter that works with UPOE; those TP-Link models say they support 802.3af, but the details only mention up to 12V 1A output. Honestly, running eight 60W thin clients over PoE sounds like a big investment, wouldn't it?
There are different versions of PoE systems, with PoE+ offering enhanced capabilities compared to standard PoE.
I intended to focus on PoE since you didn't specify alternatives for hardware changes.