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How long is the Openreach modem power lead?

saf23g — Sun, 04 Jun 2023 13:02:16 GMT

Hi,

I'm going to have an BT engineer visit soon to install FTTP to my house. I have watched videos online and saw that the "Openreach modem (ONT)" requires to be plugged into the mains. I have a preference of where I would like the Openreach modem, and it isn't too far away from the mains wall socket (I'd prefer not to use an extension)

Roughly how long is the normal power lead for the openreach modem, so I can get things prepperd...or would the engineer have different lengths of cables?

Re: How long is the Openreach modem power lead?

jac_95 — Sun, 04 Jun 2023 13:24:34 GMT

believe the power supply lead is around 1.5 meters (for Nokia ONT)

Re: How long is the Openreach modem power lead?

countrypaul — Sun, 04 Jun 2023 13:38:15 GMT

If the cable from the Power supply to the ONT is not long enough, bear in mind that you can extend that cable you don't have to use a mains extension lead.

Re: How long is the Openreach modem power lead?

saf23g — Sun, 04 Jun 2023 16:22:26 GMT

Do you mean using something like this "2.1mm x 5.5mm DC Power Male to Female 5 meter 12 Volt Power Extension Cable" (I found on Amazon)

Re: How long is the Openreach modem power lead?

countrypaul — Sun, 04 Jun 2023 17:15:02 GMT

Yes, though how long you can still get enough power through I don't know, but they do come in shorter lengths.

Re: How long is the Openreach modem power lead?

flycop2000 — Sun, 04 Jun 2023 18:55:07 GMT

I just ordered a 3m long, 5.5 x 2.5mm lead from Amazon today for £4.04

Re: How long is the Openreach modem power lead?

saf23g — Mon, 05 Jun 2023 21:55:59 GMT

Did the extension you ordered work? because i'm trying to decider whether I need to buy the 5.5mm x 2.1mm or the 5.5 x 2.5mm lead

Re: How long is the Openreach modem power lead?

flycop2000 — Thu, 08 Jun 2023 17:43:51 GMT

I only just received the cable and not had a chance to install it. I will repost as soon as I install it.

Re: How long is the Openreach modem power lead?

flycop2000 — Fri, 09 Jun 2023 15:48:29 GMT

I tested the Amazon extension cable this morning and it works fine.

Using a test meter there was a drop of 0.01 volts.