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LPS for Optical Network Terminal (ONT)

We have fiber coming into our home with a Nokia ONT/Router combo and I want to add a LPS for streaming. The ONT presently has a wall wart providing  12V, 3A to power it.  Can I  just splice in a standard   US NEMA   plug to the existing wire for connection to a LPS, or, do I need to purchase some specific wire  (which already has an ONT connector) to go  between a LPS and the ONT ? 

I know this sounds extremely simple but I just want to make sure the rewiring doesn't screw things up due to my overlooking something obvious.  I can be very good at overlooking the obvious   😥

Thanks for any insight,

 

brskie
audphile1's avatar
audphile1
4,891 posts
 

Is the output of ONT fiber optic or copper? Is the SMPS on the same circuit as your system? I could be wrong, but if the SMPS is not in the same outlet or even circuit as your audio components, replacing it with LPS is most likely not going to make a difference. Also, if the output is fiber optic, the light carries the digital signal and as such it is not susceptible to EMI and RFI - there’s no noise in that transmission line. Once you convert fiber optic back to copper, that’s where I’d start cleaning things up. 

mitch2
3,961 posts
 

If your goal is to power your router with a LPS, then you need to purchase a LPS that delivers 3A of current at 12V DC.  The LPS you purchase should come with a DC power cable to connect the LPS device to your router, and it should also come with an AC plug/cord to connect the LPS device to the duplex in your wall.  Not sure why you would want to splice in a NEMA plug.  Others can address the potential benefits, or not, of using a LPS for this purpose.  FWIW, all my network items including modem, router, and peripherals (such as converters and switches) are powered using LPSs.

brskie OP
67 posts
 

@audphile1 @mitch2

The output of the ONT is an internet wire (COAX), not optical. I am trying to post a link to an image of the power cord going into the ONT but I am having trouble. Here is a try;

Image

The ONT has a power input that looks like the bottom image in this link. I didn’t know if it is possible to buy a cord with that type of connection for the ONT, and, the correct connection for a LPS, or, if all LPS come with wires with that type of connection at the other end for an ONT. I’ve never had a separate LPS before.

Thanks for your patience with me.

Bruce

 

Bruce

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