Well, the problem is that if the backup PSU fails, we will never know. Maybe you can put this on the "wishlist" of additional features of the CCR series.you can monitor only active PSU. However if you have them with different rated voltages, then reading what voltage will give you what PSU you are using.
I think you misunderstood me.if you have configuration as i described where main PSU output is higher than backup, then when main PSU fail it will switch to backup one, that already should an indication that things are going wrong. When both of them fail, router will be offline.
Thank you very much!edit: we will look into PSU sensing.
+1It would be nice to buy the CCR with 2 PSUs in the first place. With the CCR you're moving into the data centers where this is standard.
Bad ideea.+1It would be nice to buy the CCR with 2 PSUs in the first place. With the CCR you're moving into the data centers where this is standard.
If I had a wish regarding the features of future CCRs, I would like to see that:
- Redundant, hot-swappable PSUs
- AC and DC PSU option
- hot-swappable fan tray with fan redundancy
- Power Plug retainer clips
- PSU Status via SNMP
That would make the CCR Series real carrier class routers.
What can happen if the two PSU voltages are too close, is there some risk of hardware damage? The normally higher voltage could become lower if the PSU is failing soon (old capacitors etc.), the hardware should be prepared for that. If there were just two Schottky diodes there wouldn't be any issue (just load sharing, harmless) if the delta is too small.yes, other PSU can be used. Just note that PSUs have to provide different voltage, minimal delta should be no less than 1V, to be on the safe side you can go with 2V difference.
As I stated above if the PSU with the lower voltage fails, you'll not notice it until the other PSU fails too. So the whole idea is just senseless anyway. A device like the CCR needs a proper dual-PSU setup incl. SNMP Monitoring and LED indicator on the front panel.[...] however you will not have any indication that one of them failed.
Depending on power supply fault, there is a high probability that if one power supply goes faulty it could pull down the second as well unless there is isolation in place to prevent this occurring.As I stated above if the PSU with the lower voltage fails, you'll not notice it until the other PSU fails too. So the whole idea is just senseless anyway. A device like the CCR needs a proper dual-PSU setup incl. SNMP Monitoring and LED indicator on the front panel.[...] however you will not have any indication that one of them failed.
Just my 2 cts.
That will not happen. Maybe I am missing something, if you have specific example, I can re-confirm with the engineers, but I am quite sure there is protection against that.Depending on power supply fault, there is a high probability that if one power supply goes faulty it could pull down the second as well unless there is isolation in place to prevent this occurring.As I stated above if the PSU with the lower voltage fails, you'll not notice it until the other PSU fails too. So the whole idea is just senseless anyway. A device like the CCR needs a proper dual-PSU setup incl. SNMP Monitoring and LED indicator on the front panel.[...] however you will not have any indication that one of them failed.
Just my 2 cts.
I agree! We will work on dual-PSU devices in the future. The above is just a workaround.A device like the CCR needs a proper dual-PSU setup incl. SNMP Monitoring and LED indicator on the front panel.
This is good to read, is there a block diagram of the board available with more data.There is DC reverse flow protection on each DC input. Any shorts on one of the inputs does not effect other DC input.
As regards the RB110AHx2 I simply bypassed the internal power supply and connected to DC battery bank which powers all dc (24V) equipment on site, onto the battery bank is a float charger attached to keep batteries charged. A simple solution for me.Any hope of getting PoE on the CCR1016-12G?
We would really like to be able to use on some of our core sites since the RB110AHx2 are beginning to creak but without either putting in mains UPS (too inefficient) or voiding warranty (hard to sell to management) I don't see how we can do so.
You have a board, you have a case and you'd definitely have a market, all it will take is some screws and a new label (or even some of the pre-production labels if there are any left)
Can we buy a CCR1016-12G-BU and an empty case even? Seems rather extreme to gut a working router just to get a case!
Barry
I have made some preliminary testing, albeit with underpowered P/S for the model, and it seems to indicate that it will. If you look at the m/b, there seems to be two DC-DC converters, one per connector.Gonna resurrect this thread again... I got a CCR-1036 and the secondary power supply connector is not actually installed on the board, though I can see where it obviously goes. Other than having no connector, will the secondary supply work on the CCR-1036 as it does the other CCRs?
Well you don't get monitoring anyway (or at least I haven't seen a way) so good idea. I would do that.Without dual PSU connector there is a way to get dual PSU but it will screw up the PSU monitoring. You can connect both PSU's to the same connector but you will need 2 pairs of diodes for something called OR-ing.
CCR1009 is a much newer model. The CCR1036 was the first CCR.Yes I'm aware of all the alternate options but I'm just confused why the 1009 has dual psu but the 1036 does not, so stupid. Then initially they included a second psu header then later removed it but left the circuitry to support a header and second psu now they have removed the circuity and I bet there hasn't ever been any notification of these hardware revisions! Normal for mikrotik I guess...
Hi,18V to 24V should be the correct value at least for CCR1036 as they are quite demanding regarding power.
i think pcb size complicate power supply spaceYes I'm aware of all the alternate options but I'm just confused why the 1009 has dual psu but the 1036 does not, so stupid. Then initially they included a second psu header then later removed it but left the circuitry to support a header and second psu now they have removed the circuity and I bet there hasn't ever been any notification of these hardware revisions! Normal for mikrotik I guess...