Hi!
I read RB3011 can be powered at the same time within the DC port and the eth1 POE IN port.
I want to know if both voltages can be monitorized within a script to check if one of the power adapters died.
Regards,
If you go to system health you will see the voltage…
If you connect them both i think poe has higher priority and in case it fails it will continue from dc…
No, you see just one voltage value in “/system health”. That’s the higher value, as the source with higher value is used.
However you can monitor voltage jumping up or down for possible failure of active source.
I have a script that does this (and more): check-health
You need to install my basic RouterOS scripts to make this work.
I dont see anything special in your script…
If a device has more than 1 psu, then in system health you will see the voltage of psu1 and psu2…
In practice i dont think what you say is true.. source with higher voltage is used? What if i power my device with 24V DC and with passive poe again 24V ? There is no higher value, they are equal… and by experience i can tell poe is used first…
That part of the script does not apply for RB3011, it does not have any psu properties.
(And I think you will never see voltage for psus, just state “ok” or “fail”.)
Well, voltage will never be exactly the same. Even if the values do not show a difference just one source is used. Possibly your POE source always has the higher voltage value?
I have a wAP on my desk that is powered by POE only. Just plugged in a 24V wall plug, which results in this notification:
[Mikrotik] Health warning: voltage
The voltage on Mikrotik jumped more than 15%.
old value: 17.7V
new value: 23.6V
Ofcorse you can see voltages for psus…
I put this into parenthesis as I am not sure for all devices. But even my CCR does have state only:
psu1-state: ok
psu2-state: ok
Just found this post which verifies the source with higher voltage is used.
I just checked my rb1100 and shows exactly voltage of psu1 and psu2…
I don’t bought yet the rb3011. I was only asking if RouterOS publishes both voltages or something we can check to discover if POE In or DC In power supply failed.
I see someone was writing about RB100 with has 2 AC or DC In.
Someone with a device powered at the same time with DC/AC in and POE In can post the wealth info published by RouterOS related to voltages or energy In?
Ok, then there are devices that have the info. Never touched a RB1100, though. Can you show the complete output of health for RB1100? Possibly I could make my script use the info.
Too bad CCRs do not support this…
Looks like this on a RB3011:
[admin@RB3011] > /system health print
voltage: 24.1V
temperature: 27C
This device is powered by a 24V AC/DC adapter. POE with 24V would not make any difference…
To distinguish the difference you would have to use an adapter with lower voltage or more voltage via POE.
Hi!
I did the test with a HeX and it works as eworm said.
I only shows one voltage.
Here’s the test. 24V it’s what it gets directly from the DC adapter, and 23.9V it’s the voltage it gets from the POE IN port.
[admin@MikroTik] > system health print
voltage: 24V
temperature: 42C
[admin@MikroTik] > system health print
voltage: 23.9V
temperature: 42C
IMHO RouterOS should give us more information about from where it’s getting the power to add the option to monitorize it and to detect when a PSU failed.
Thks to all for your time.
It shows 1 voltage because the device has 1 DC input.. devices with 2 AC or DC inputs show 2 voltages.. In simple words if you have 2 PSUs you get 2 readings in system health..
When you connect a device with 1 PSU with its DC and POE in you get 1 reading in system health because there is only 1 PSU.. the same PSU is used for the DC and POE…
Yes. I understand how it works. But IMHO if the system not:s getting power from a POE IN port it should show it too as it does with PSUs.
In that way we can check if all it’s ok.