Hi,
No, Passive PoE will work right out of the box, but before connecting powered LAN cable please take a look at this page to avoid any possible damage to your device: https://wiki.teltonika-networks.com/wikibase/index.php?title=RUTX11_Powering_Options&mobileaction=toggle_view_desktop#Passive_PoE
Main points that you must know from there are:
- The device is NOT COMPLIANT with the IEEE 802.3af-2003 standard: powering the device from an IEEE 802.3af-2003 power supply will damage the device as it is not rated for input voltages of the PoE standard.
- The device is NOT COMPLIANT with the IEEE 802.3at standard: it cannot power other devices over Ethernet.
EB.
