Contents |
this page describes how poe-out feature can be used on RB750UP and OmniTik UPA-5HnD. These boards have 100MBps interface and power is provided over the spare pairs.
PoE Out can be configured in
/interface ethernet
menu and each port can be controlled
independently.
Power on 100MBps interface is provided over spare pairs (blue and brown) where blue pair carries positive and brown - negative.
Configuration options are:
If auto-on is selected then port operates in this strict order:
If forced-on is selected then port operates in this strict order:
PoE out feature has the following safety features:
auto-on mode is considered safe, it will check if resistance on the port is within range and only then enable PoE out on the interface. The range is 3kΩ to 26.5kΩ
when port is on (PoE out is enabled) port is checked for overload, If that is detected to avoid hardware damage of powered device or powering device PoE out is turned of on this port
when port is on (PoE out is enabled) port is checked for short circuit. If it is detected to ensure that there is no additional damage on powered device and no damage on powering device PoE out is turned off on all ports
By default PoE out polarity on MikroTik manufactured devices on 100MBps ports is standard
PoE out on RouterBOARD devices is standard - over blue pair - positive and over brown pair - negative voltage
Some devices use different polarity to power their devices that is reverse of the standard: over blue pair - negative and over brown pair - positive voltage
Device that supports either of 2 possible polarities - either standard or reversed
If you want to power device that supports only reverse polarity using 'RB750UP and OmniTik UPA you have to make special cable that will swap required wires, thus enabling you to power these devices.
On one end you have to have standard RJ45 T568B wiring (orange striped, orange, green striped, blue, blue striped, green, brown striped, brown) and on other and has to have blue and brown pair swapped resulting in (orange striped, orange, green striped, brown, brown striped, green, blue striped, blue)
Table contain information on what devices can be powered using RB750UP and OmniTik UPA-5HnD as power source for PoE
Polarity: standard - blue pair positive, brown pair negative; reversed - blue pair negative , brown pair positive, any - either standard or reversed.
Device | forced-on | auto-on | polarity |
---|---|---|---|
RouterBOARD RB433GL [1] | yes | yes | any |
RouterBOARD RB450G [2] | yes | yes | any |
OmniTik UPA-5HnD [3] | yes | yes | standard |
OmniTik U-5HnD [4] | yes | yes | standard |
RouterBOARD RB711G-5HnD [5] | yes | yes | any |
RouterBOARD RB800 [6] | no | no | any |
RouterBOARD RB450 [7] | yes | yes | standard |
RouterBOARD RB433AH [8] | yes | yes | standard |
RouterBOARD RB750 [9] | yes | yes | standard |
RouterBOARD RB750UP [10] | yes | yes | standard |
RouterBOARD RB435G [11] | yes | yes | any |
RouterBOARD RB493AH [12] | yes | yes | standard |
RouterBOARD RB493 [13] | yes | yes | standard |
RouterBOARD RB532 | yes | yes | standard |
RouterBOARD RB153 | yes | yes | standard |
RouterBOARD RB112 | yes | yes | standard |
Motorolla Canopy | yes | yes | reversed |
Ubiquity LOCO900 | yes | yes | standard |
Ubiquity Bullet M2 | yes | yes | standard |
Ubiquity Bullet M5 | yes | yes | standard |
Ubiquity NanoStation 2N | yes | yes | standard |
Ubiquity NanoStation M365 | yes | yes | standard |
Ubiquity UniFi AP | yes | yes | standard |
Ubiquity UniFi AP long range | yes | yes | standard |