TX1012 24V POE over 20+mtr cable = Ubiquiti radio rebooting

[DaveClelland]

Geoff,

Welcome to the Cambium community.

There is a Cambium Field Service Bulletin that addresses this problem

Field Service Bulletin - cnMatrix TX switches susceptible to unexpected behavior when devices that require low voltage passive PoE are connected

cnMatrix TX switches susceptible to unexpected behavior when devices that require low voltage passive PoE are connected. Based on our testing, the current list of affected devices are below. We will continue to update this list if other devices are found to exhibit the same behaviour. Ubiquiti LTU Rocket Ubiquiti AF-5XHD Mimosa C5c Cambium 3000L

The solution is to use a PoE converter, such as

This converter tells the switch the port needs to be 802.11af, and the output of the converter is passive 24v.