Hello,
I am new with Mikrotik!
I have purchased a Router: L009UiGS-RM.
I have another router, a 5G router from ZTE with a DHCP server: 192.168.1.1/24
I have configured ether8 as WAN port, since this is the only port with PoE.
When I use an external Poe injektor everthing works very well,
switching on Poe for ether8 and removing the injector it doen’t work.
Does anybody have a solution?
BR
Thanks!
Siegfried
Since you do not specify details of that ZTE device I can only assume it expects other POE input then what L009 can deliver.
Keep in mind L009 only provides PASSIVE POE out based on the power supply attached to it (default PSU is 24V so POE out is more or less the same voltage).
If that ZTE device needs anything else or even active POE (like 802.3 at/af) it may or may not work.
I had a while ago a similar problem with wAP AX and L009. wAP AX requires 802.3 at/af.
First check what voltage that ZTE device requires. If 24V is in the possible range (be sure !), you can try to set POE Out to Forced ON on L009.
You sure about that? wAP ax ships with (passive PoE injector) RBGPOE and 24V power adapter. In my installation UTP cables cause 1V drop and wAP ax happily humms along with 23V supply volrage:
[device] > /system/health/print
Columns: NAME, VALUE, TYPE
# NAME VALUE TYPE
0 voltage 23 V
1 cpu-temperature 48 C
2 board-temperature1 39 C
Now you make me doubt myself …
http://forum.mikrotik.com/t/l009-dont-like-it/180693/10
Yes, I’m sure (again) 
… where it came out that the Wap Ax runs just fine on 24 V, but that the L009 doesn’t negotiate correctly the auto on and you need forced on to power the Wap AX.
Thank you!
It’s the ZTE MC889.
It needs 48V / 0.32A and 15 W.
The power supply from the Mikrotik provides:
24V 1.5A 36 W.
Checking the Mikrotik documentation:
I could use a power supply with a voltage from 24V to 56V.
but ZTE power supply provides PoE 802.3 AF/AT, so it wont work as you described.
Regards from Austria,
Siegfried
I would not give up that fast.
If you change L009 PSU to 48V AND you use POE Forced On on ether 8, it still may work.
L009 can also accept POE in on ether1 so you can already test with the POE setup you had now for your ZTE modem.
When you apply 48V to the input via ether1 (remove normal L009-PSU), 48V (or about) will come out on ether8.
Thank you!
I will try with PoE in @ether1 as you described.
Siegfried
The router works, using the ZTE power injector as PoE in @ether1.
But the LTE router doesn’t work @ether8 with PoE, it seems to need active PoE as you mentioned,
But anyway, thank you very much!
Did you try to set PoE out on ether8 to “forced on”? L009 might not be able to properly negotiate 802.3 af/at, but with forced PoE-out the connected powered device might work just fine.
Which is what I suggested…
You sure did.