Not sure what you mean by front and back.  It's a Powerbox.

Ethernet Poe comes from Tycon.  The fat 110 psu would go into the DC barrel
if there's 110 available.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Jan 2, 2018 8:55 PM, "Nick Bright via Mikrotik-users" <
[email protected]> wrote:

> I've had some older RB750UP units behave that way intermittently, but the
> newer versions as well as the RB960UP work well. If it's an older PowerBox
> that might be a problem, the rest of this assume it's a pretty new unit.
>
> Are you using the front (POE JR45) or rear (terminal) voltage output on
> the Tycon? The rear output should have a higher amperage capacity, so you
> could try that if you're using the RJ45 currently.
>
> Also keep in mind that the load output on the front/back is an OR value,
> not an AND value. You can have 1.5A on the back *OR* 1A on the front, but
> not both. If you've got both running, and are exceeding 1.5A, the unit is
> being overloaded (I killed a few Tycon controllers this way).
>
> It sounds like your boot up spike load for all three devices is probably
> more than 1A, but I don't know that it's more than 1.5A. I would advise
> measuring it to be sure.
>
> You may be able to move from the front to the back to get another 0.5A,
> which *might* give enough breathing room to fix the problem; since it's
> the startup spike load seems to be what's causing the issue.
>
> Another possibility might be to replace the charge controller with a
> device capable of more output. I suspect the Tycon is your problem (not
> enough output current for the startup spike). I have several RB750UP (newer
> units) and RB960UP units in the field on MeanWell AD-55B controllers, and
> they power up 3-5 units of various configurations of RocketM2/ePMP from a
> dead stop, but they put out about 2.4A @ 24v (note that the AD-55B doesn't
> include solar capabilities).
>
> On 1/2/2018 9:04 AM, Josh Luthman via Mikrotik-users wrote:
>
> We have an unfortunate deal where we have a temporary solar situation.
> It's a 24vdc supply to a Powerbox which is POE to a BH and AP (Epmp and
> Nano).
>
> Over night of course it loses power these weeks with the lack of sun.  We
> get there in the morning and with all three things plugged in it won't boot
> right.  It looks like the Powerbox comes up but the red light for POE keeps
> blinking to the BH and AP.  We can unplug these two, then plug in the BH,
> and then the AP to solve this problem.
>
> Is there a way to do this without writing a script on RouterOS?  I'm
> thinking of shutting power off on bootup, then after 60s port 3 on, 60s
> port 4 on.
>
> Josh Luthman
> Office: 937-552-2340 <(937)%20552-2340>
> Direct: 937-552-2343 <(937)%20552-2343>
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
>
>
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