Power distribution too low for 4k? (1amp fused)

[scubaaddict]

I just upgraded my 9 camera system from 720p to 4k (all analog). Looks great, but I have 'interference' in the camera feeds. My old power distribution is a 12v 9 channel/1 amp (fused) per channel. Nowhere in the documentation of my cameras does it have the amperage needed by the cameras. Checked with tech support and they said my cameras need 2 amp power supplies:

2x AMC4KDM36-W
4x AMC4KBC28-W
3x AMC4KBC36P-W (all connected to this DVR: AMDV8M16-H5)

So I switched one of my cameras directly from a single 2amp power supply and the picture became very clean (no interference)

So I am looking for a new power supply distribution, but am having trouble finding a 9 channel with enough amps (most are 1amp per channel). The only one that I could find that supplies 2 amp channels is this:
https://smile.amazon.com/dp/B00BBKCJ16/ ... _lig_dp_it
and it is 18 channels. I am willing to buy it, but wondering if anyone in here has a better suggestion.

Thanks!

[scubaaddict]

Also I am looking at this supply: https://www.monoprice.com/product?p_id=6876 (I can power one of the cameras outside this of this power distribution). This power supply has 1.85 amps per channel.

Again, any help or suggestions are appreciated.

[Revo2Maxx]

What PDU do you have?

In most cases the PDU is 3amp fused and while you have a 9ch unit it might be that they have added some other type of limits.. I know that all of my PDU's are 3amp fuses and this is also for my Electronic one that don't have the normal glass fuses..

If it say isn't an Altronix one that does have per ch limits built into the board then you might get away with buying just a 18amp PSU as long as your unit isn't a Mini unit and a larger PSU could fit.. I would go with no less then 20amps and 22 or 25 is best depending on where you cameras are and the quality of cables ran..

[Revo2Maxx]

So I wanted to update on something I said.. So I do have a 9ch that does have larger limits however it isn't enough to power a 2.4amp bulb.. So I did take one of the smaller units and soldered into one of my Conversions that I have made from one of my PDU that I have owned since like 2008 or 9.. This used to have Glass fuses and while on the botton there is a Pad for the Auto Reset fuses that I have installed the hole wasn't drilled so I did just use the lower holes from the fuse holder.. Anyway I did put in one of the smaller ones that is 1.5amp and while it will run for about 2 min of 2+ amps it will over heat and power will be lost.. Taking the same load 2.4amps from a bulb on high output of brake light I can run it on the larger auto reset fuses forever as they are 3amps...

So worse case if you have the tool and know how to change out your Fuse holder you could as I said before buy a new PSU and install in the unit that would be enough power for your cameras.. Just keep in mind more power needs more cooling room and if the space is too small I woud install a fan.. Some of the larger PSU comes with a Fan...

While not all of my PDU's are all MeanWell supplies most of the PSU in them are and I have one that is a mean well knock off...

So the Bulb in this is from a Setup for testing 24vac so I removed the Center and only using one of the bulbs seeing I was going to put it back together after this I didn't remove bulb it was easier this way so there is only 1 bulb lit

Edit: Also main reason I didn't put glass fuses in again was because trying to find ones that would fit wasn't as easy as just buying the Auto reset fuses.. The Fuse holder that used to be in there was no longer any good they were loose and didn't make good contact so it was time to update the unit.. Only thing that isn't new on the board is the Green LEDS had 1 bad and the screw terms as they were still in good shape.. All Fuses and resistors are new and the 1 red led as I didn't have any green lol

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[scubaaddict]

RevoMaxx - thank you for the reply! My knowledge of electricity is quite low, so I have to admit a lot of what you said is above my ability to comprehend. I am attaching pictures of my current power distribution unit. I haven't seen many with 2A and I haven't even seen any with 3A fused - so where do you get your power distribution units?

[Revo2Maxx]

WOW.. I am not sure what company that one is from but is it Clearly the same board as mine and sure enough where mine is Silk screened with T3 yours is only a T1.. Crazy thing is when I upgraded mine to new fuses because like I said mine did have the Tube fuses like yours it was 9 port but only had a 10amp supply. I have a couple of them 1 for my Garage and one of my shed, I have a 4 port 4amp unit bought also back in 2009 or 10 that is smaller has a 8 port bard but they took 4 of the connectors and fuses off the board and it even has 3.5al fuses..

So here is the issue your going to run into.. For the cost of the PSU you would be able to buy 3 of them at the cost of the PDU

PSU = Power Supply Unit
PDU= Power Distribution Unit

So while looking at your case is it little on the small side.. My 9ch one came in a 8' x 9.5' box size the cover is larger.. Mine was mounted like yours and mine had a Divider between the supply and the board like it mattered you had to open it to get to the parts anyway lol...

My smaller one is 7 3/8" x 8 1/4" and would be some what harder to find a bigger supply.. I do have larger ones as well both of them are 12" x 12" one is 16ch 24vac and the other 8ch 12vdc supply... I did change the 16ch 24vac to a dual power unit that has 8ch 12v and 8ch 24vac...

Depending on how many cameras your needing to run I would look over your Board and see if the Traces on the board are able to run the larger 3amp or even a 2 amp fuse.. If it was I would buy a new PSU and replace the one you have in it with the new one.. If the new one 18amp or better is to large for your box to be honest I would make a box for the supply to sit behind the Box and feed in the 12v to the baord as I have had to do this in the past as well.. For the Price I would look at this one to be honest
https://www.ebay.com/itm/Meanwell-SP-30 ... SwNHZewF4y

It is little over kill at 24amps but that is what I would be looking at adding to a 9ch board this way I could have some extra because I don't like to run my supplies at max cap I like a little space... While this PSU might be little larger, it does have cover for the in and out screws and to be honest it would be easy to make a little box that has the power coming into this supply and put a Hinge onto the PDU with a latch or better yet make it screwed down so you would have to open the PDU to take out the latching screw to open the bottom part of the box.. Just make sure all the wires coming into the PDU are in a Casing so there is no chafing..

[scubaaddict]

Thanks again Revo2Maxx!

Questions I have: If I trade out the PS with the new 24A one, how would I know if the Traces can run the higher amperage? What would the fuses need to be changed to? Also, would the resistors also need to be changed?

I would feel comfortable replacing the PS but not sure on what fuses would be needed and if the resistors need top be changed, we are now getting out of my comfortability level. I don't want to burn down the house.

[Revo2Maxx]

Well most times there is no 2amp fuses that I know of and mine came with 3.5 so for keeping glass fuses without having to soldering in some new Auto reset ones like in mine I would just go and get some 3.5amp fuses... About the board I am sure it is going to be fine.. I am going to guess that to cut down on cost the boards were made at the same time and would be within the same size tracks on the back... My board is just little over 4" top to bottom and just under 4 maybe 3 3/4 side to side...

About the Resistors in short no.. Only thing that is for is to lower the Voltage coming into the unit to drive the LEDs so for them they can remain the same... Only reason i changed out mine is because I had them and I already had to change out one of the LEDS plus one of mine wasn't set so nice so I just said replace them all... Plus the Tolerances for yours are better then mine to be honest...

So burning down the house is going to be something that I guess could be done but not Wise JK... here is what I would say is important...

Old Supply, Remove from power, (Unplug from Wall) bring in new supply remove wire and note what peg it was on, then when you connect to new supply keep them as they were and Most inportant is the yellow with green as that is GROUND... For the ones going to the 12v side it is important also to make sure you add them to the + and - respectfully because you don't want to reverse them and not have a dual voltage camera that has protection in place for reverse polarity... But just remember the Red wires go to + and the Black goes to -

On a scale of 1 - 10 for how hard this is I would say 2.. Replacing a PSU in a Computer would be 4.. replacing a washing machine control unit in say Kenmore 8 to 10...