Discussing Ubiquiti PoE switches and rack configurations.
Discussing Ubiquiti PoE switches and rack configurations.
I have some queries about the setup I purchased from Ubiquiti. I bought the Switch Pro 24 PoE and Dream Machine Pro. I ordered the PoE because I plan to connect some cameras/APs later, but not right away. Will connecting these devices to the switch or non-PoE units damage the sockets in my rooms? I’m unsure if powering them won’t affect the switch. I’m considering placing both in a rack inside a closet where the main Ethernet enters the house. Could this cause any heating issues? I expect some ventilation gaps at the bottom and top. Thanks!
Active PoE transmits power only when it detects a device needing it; otherwise, it won’t supply power unless there’s an issue with the device. Passive or "always-on" PoE provides continuous power, though most vendors don’t use this approach.
Based on my findings, I noticed Ubiquity handles various product lines differently. Generally, it’s advisable to disable PoE on ports not linked to PoE-enabled devices.
PoE means every Ethernet device uses a transformer connection. This keeps any significant DC voltage out of the sensitive or smart components, while the changing data signal travels through the secondary side of the transformers that connect to those delicate parts.
What you purchase from the Ubiquiti shop today will always use active PoE. The older models rely on passive PoE, but only the EdgeMax series is passive and is commonly used by WISPs who understand their equipment. Active PoE switches fit better here, though passive PoE is usually sufficient for simpler setups.
Older passive Ubiquiti devices sometimes had a flaw that could brick the system if the power supply failed during connection to a PoE switch instead of their pipeline adapter. A filter was required to prevent this risk. This problem is no longer present in their newer products. I prefer their switches—they’ve been reliable for me.