RBGPOE issue with Groove52A

Hardware MikroTik hardware general
1

Hi,

I have a RBGrooveGA-52HPacn which I’m planning on connecting via a long run outdoor Cat5E cable (60M max) via the RBGPOW with a 24Vdc 1.4A adapter. The cable has been used before and was working with my SXTlite for my years.

The issue I have is the RBGPOE light flashes and the Groove stays unpowered. (also no connection light on my Mikrotik switch as well). I have tried the following combinations:

RBGPOE + 60M cable + Groove52A → FAILS
RBGPOE + 1M patch cord + Groove52A → POWERS OK
RBGPOE + 60M cable + RBSXT5nDr2 → POWERS OK

I have tried with a 28Vdc 2A adapter and that fails for the Groove but works for the SXTlite.

The RBGPOE light flashes slower with the 24Vdc, and faster with the 28Vdc adapter.

Have I got too long a run for the Groove? The adapter is under powered? Or could it be my cable is dodgy and only shows up with a GigEthernet on the Groove compared with 100Mb with the SXTlite? (ie the 7/8 pairs are broken).

Note: I’ve checked the cable with a cable tester and it shows all pairs are correct, but I’m never totally convinced by the cheap testers.

Any thoughts much appreciated,

Chris

2

Update:

I just assumed 50metres was too long and cut the cable in half and re-spliced a new RJ45 connector on, and attached it to a different switch. It now seems to be working fine. I guess 50m is just too long for POE and the Groove52A.

Chris

3

Hello @ecylcje

There should not be any issues with 60M cable, it must work properly with cable up to 100M. Make sure there are no issues with cable you are using.

4

Check your cable category and brand. Make sure that you are using the best cable quality as possible.

Regards.