Nokia G-010G-Q DC barrel jack

Does anyone know what the DC barrel jack specs are on the G-010G-Q Nokia ONT? Im looking to use a USB-C to DC PD trigger cable so I can power it from my router's USB-C port, but the jack seems like a rarer type and I need to get an adapter for the male DC side of the cable.

Same barrel / jack size is used across recent Openreach ONT whether Huawei or Nokia, ADTRAN (or indeed the long deceased ECI): 2.1mm (inner) x 5.5mm (outer) x 9.5mm (long). Positive tip/centre conductor. 12v supply.

See SIN, page 27:
https://www.openreach.co.uk/cpportal/content/dam/cpp...

Edited by Pheasant (Sun 11-Dec-22 20:34:48)

In reply to a post by adamscybot:

looking to use a USB-C to DC PD trigger cable so I can power it from my router's USB-C port,

Make sure you can buck/boost the USB to 12v otherwise you’re in trouble. Also need around 5w on quiescent / steady state and bit more on start up.

In reply to a post by Pheasant:

Same barrel / jack size is used across recent Openreach ONT whether Huawei or Nokia, ADTRAN (or indeed the long deceased ECI): 2.1mm (inner) x 5.5mm (outer) x 9.5mm (long). Positive tip/centre conductor. 12v supply.

See SIN, page 27:
https://www.openreach.co.uk/cpportal/content/dam/cpp...

That's perfect thanks a lot!

Make sure you can buck/boost the USB to 12v otherwise you’re in trouble. Also need around 5w on quiescent / steady state and bit more on start up.

Yeh, I think I have headroom, the port is primarily for external drives. At one point, I accidentally used the wrong adapter with the router that was a good 10W less than the proper one (lower current rating, same voltage) without any issues -- implying the over-speced adapter is probably linked to the need to attach devices to it (would also align with it using USB-C with PD).

They actually run at very low power in use. A couple of watts.

In reply to a post by Pheasant:

In reply to a post by adamscybot:

looking to use a USB-C to DC PD trigger cable so I can power it from my router's USB-C port,

Make sure you can buck/boost the USB to 12v otherwise you’re in trouble. Also need around 5w on quiescent / steady state and bit more on start up.

USB PD supports 5, 9, 12, 15 and 20 volts although 12 volt support is optional not mandatory.
You just have to buy a USB C to barrel adapter that has a chip in that will handshake with the USB C port to get the correct voltage.

Thanks
Dan

Think I'd still get the multimeter out to check you're not feeding it 20V by mistake 😂

A router with USB PD? Are you sure? Not every USB Type-C port is going to be PD.

Maybe ask the OP @jpm 🤣

And the other question is, "why?" If it's to save a mains socket, and if the router and ONT are both 12V, they could be powered with a simple Y adapter.

Maybe ask the OP @candlerb 😅

In reply to a post by Pheasant:

Think I'd still get the multimeter out to check you're not feeding it 20V by mistake 😂

If it doesn't negotiate properly it will just output 5V like a normal USB port.

Thanks
Dan

If the router's supply is 12V then just branch off so you have two 12V outlets.