Transformer

[Rekusu]

What ho one and all,

I am changing my broadband supplier from John Lewis to PlusNet. As it happen, JL sourced their broadband from PlusNet, which as you probably know, is part of BT.

However, PlusNet have supplied a new router with associated transformer.

Although the poser cable is probably sufficient long, to remove the existing JL power supply and replace with the PlusNet cable will involve quite a lot of cabinet/bookcase unscrewing and moving. it is not far, just rather inconvenient.

The attached photo shows the JL transformer on the right and the PlusNet on the left. Given that they both supply 12V albeit at 1A or 1.5A and the PlusNet does not have the Wattage printed (18W for JL), can I use the existing JL transformer with the new router without any issues?

Thanks and toodle pip

 

[sparkymarka]

If the one that is currently fitted is the 1.5 amp then it will be ok ,a higher output will be better than a lower one …which it may or may not struggle with

 

[Rekusu]

Thanks for your reply. The one on the right is the current; left will be new so unfortunately, the old transformer is only 1A and the new is 1.5A

 

[hllns]

If you don't need to return the BT/Plusnet PSU you could cut it at the transformer end and put a DC socket on the existing wire. Otherwise you'd have to take your chances or actually meter the consumption.

 

[hllns]

Another thing you could do if you don't need the old PSU and the connector will thread through is to cut the old wire and use it to draw through the new one

 

[fourtytwo]

Two other things to check are :
1/ The DC connector polarity (marked on the underside of the adapter but unreadable here)
2/ Size of DC connector, they often have different barrel & pin diameters

 

[RandomGrinch]

1/ The DC connector polarity (marked on the underside of the adapter but unreadable here)

From the image, the polarity is the same on both - centre positive.

 

[Rekusu]

Thanks for the thoughts. I have not checked but think the DC connectors are the same size. and not been informed that have to return the old router. since John Lewis are quitting the broadband/phone side of the business, I doubt they will want a three year old router back.

But I do like the idea of pulling the new through as I extract the old. That may be the way to go.