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toh:mikrotik:rb951ui [2020/04/02 23:32] – Added info on rev2 wifi problems with actual OpenWRT version for this router elsebitatoh:mikrotik:rb951ui [2020/06/08 16:01] – Added snippet (as main method) for disabling PoE. sopalajoarrierez
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         option default '0'         option default '0'
  
-There is a red LED on port 5, which seems to be some indication of PoE (apparently enabled by default). You can turn the LED off (PoE will continue supplying power over port 5, even without the red LED on **[However, see Note below]** ) with the following command. You can put it in /etc/rc.local+There is a red LED on port 5, which seems to be some indication of PoE (same voltage as input [[https://mikrotik.com/product/RB951Ui-2HnD]], so 24 Volts, 0.5 Amp, apparently enabled by default). You can (tested working for v18 and v19 [[https://forum.openwrt.org/t/mikrotik-routerboard-rb951ui-2hnd-frozen-red-led-5th-port/19667/2|in the forum]] ) turn the LED off by editing /etc/config/system: 
 + 
 +  # Disable PoE on port 5 
 +  config gpio_switch 'poe' 
 +       option name 'POE' 
 +       option value '0' 
 +       option gpio_pin '2' 
 + 
 +Or temporarily with the following command (PoE will continue supplying power over port 5, even without the red LED on **[However, see Note below]** ) . You can put it in /etc/rc.local
  
   echo 0 > /sys/class/gpio/gpio2/value   echo 0 > /sys/class/gpio/gpio2/value
  • Last modified: 2024/02/12 08:58
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