Combine 12v - getting rid of wall warts

[apostolakisl]

As a side note, ATX power supplies provide 12v and 5v so you can get rid of that many more wall warts with a single source. I ran 2 terminal blocks, one for 5 and one for 12 v. I am powering all kinds of stuff with it including routers, modems, intercom, relays, and so on. Everything that is 12 or 5v which is almost everything. There are a few 9v things that I had to leave alone. I considered getting a 12 to 9v converter but kind of lost interest.

 

[dos46]

As a side note, ATX power supplies provide 12v and 5v so you can get rid of that many more wall warts with a single source. I ran 2 terminal blocks, one for 5 and one for 12 v. I am powering all kinds of stuff with it including routers, modems, intercom, relays, and so on. Everything that is 12 or 5v which is almost everything. There are a few 9v things that I had to leave alone. I considered getting a 12 to 9v converter but kind of lost interest.

Did you combine all the 12v (+/-) from the ATX PS to a single terminal block or did you seperate each 12v feed from the ATX to its own terminal block?

 

[apostolakisl]

Did you combine all the 12v (+/-) from the ATX PS to a single terminal block or did you seperate each 12v feed from the ATX to its own terminal block?

Each individual 12v wire is electrically equivalent (at least that is what I have read and my experience would indicate that it is correct). In this case, there is no reason to use multiple wires except for perhaps if you are pushing the amp limit of one particular wire based on its gauge. In that case, I would use two terminal blocks, one for each wire and split the amp draw between the two blocks.

 

[treo650]

will something like this work for routers, modems, etc etv 12v?

http://www.ebay.com/itm/18-Port-Power-Supply-Box-DC-12V-CCTV-Camera-18-Pigtail-/180641860321?pt=US_Surveillance_Cables_Adapters_Connectors&hash=item2a0f180ae1

 

[heffneil]

That similar to what I use but I use an altronix power supply. Works well and has battery backup on top of everything else.

 

[treo650]

Cool.

I will buy something like that... That looks resosnably priced and it will make the setup much more clean

 

[apostolakisl]

will something like this work for routers, modems, etc etv 12v?

http://www.ebay.com/...=item2a0f180ae1

That is a clean and reasonably priced setup. However, it's stated use is for CCTV with no mention of anythig else. The power may not be as clean and the voltage may not be as regulated as an ATX unit or some other unit designed for powering data appliances.

 

[Del91574]

Depends on if it's a switching or linear power supply really.

A lot of the security hardware is just as, if not more, sensitive to power supply issues, especially in the realm of access control, as the larger setups are basically small PC's, with NIC's and onboard memory, a lot of times, it's the same DDR and like as installed in many desktop PC's.

 

[chrisexv6]

I picked up a 6 amp Altronix supervised supply (in a can, with a 120V input so no xformer necessary) on Ebay for 100.00 shipped, brand new.

Added an Altronix PD8 resettable (non-fuse) output board (again, off Ebay, for something like 12.00 shipped). Each output on the PD board is rated for up to 2.5A....obviously this would overdrive the supply if I ran more than 2 at full bore, so Ill make sure to tape off the extras (or run low current on more than 2 inputs).

I use 1 for 2A peak to my Uplink cell unit, 1 to run my 4 wire contacts (max of about 900mA) and thats it so far. I will eventually use it to power maybe my router and VOIP adapter, but everything else I have uses a 120V input and has its own DC stuff inside. Once that all gets upgraded (eventually) Ill run it off the Altronix as well if there is any overhead left.

There are a ton of Altronix supplies on Ebay, just keep an eye out and you'll find a good deal. And best of all this is their intended use (dont get the CCTV supplies, most arent supervised, need xformers to be powered [which arent cheap btw], etc)