A volunteer at a community center offers a cheap “passive PoE” injector for a standards-based city AP that expects IEEE 802.3 negotiation. What should the technician do?
Select an answer to reveal the explanation.
Short Explanation
“Passive PoE” and real IEEE PoE are not the same animal. Wrong voltage or always-on power can fry an AP that expected polite negotiation. Stick to the standards-based PSE the design calls for.
Full Explanation
Standards-based PoE (IEEE 802.3af/at/bt families as applicable) negotiates power safely between PSE and PD. Passive injectors may apply power without that handshake and can mismatch voltage or pinouts, risking equipment damage. CWTS technicians insist on compatible PoE methods specified for the AP rather than unlabeled “PoE” adapters.