Technical > Lighting and Electronics

SON coaxial wiring connectors

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David Simpson:
Yesterday while perusing the SJS site, I found these coaxial connectors by SON.
https://www.sjscycles.co.uk/search/?term=coaxial

The Edelux light is available with the connector attached, and with an adapter to fits on to the 2-blade connector on the hub.
https://www.sjscycles.co.uk/lighting/60-cm-schmidt-edelux-ii-high-power-led-headlight-w-coaxial-adapter-black-anodized

Are these new? I haven't seen them before. Does anyone have any experience with them? Are they easy for the do-it-yourself person to solder?

I currently use the Supernova "Gold Connectors", but if I need to replace my light, I may be tempted to go with something cheaper and more standard.
https://www.sjscycles.co.uk/lighting-spares/supernova-qr-gold-connector-set-with-integrated-shrink-wrap

- DaveS

Danneaux:

--- Quote ---Are these new?
--- End quote ---
Yes, it seems so for 2018.
--- Quote ---Are they easy for the do-it-yourself person to sold
--- End quote ---
Dave, while I haven't soldered these connectors, coaxial light cabling is pretty easy to solder if you have soldered coaxial antenna leads.

The process is usually a four-step one:
1) Cut through all outer insulation in a round cut till you get to the inner lead protection.
2) Measure back about 4.5mm and cut through the outer jacket only, exposing the outer woven conductor sheath.
3) Fold/roll back the woven sheath over the outer jacket and insert into the connector.
4) Solder the center conductor to the center post and cut off the excess center lead. Usually the outer conductor will screw on over the outer woven conductor.

However, some coaxial conductors are solderless and get by with a combination of crimping and heat-shrink connections.

Schmidt/SON offer a little jig to make soldering easier, but it is not strictly necessary. Some more details can be seen down the page here: http://www.peterwhitecycles.com/schmidt-headlights.php

Have you seen the SON junction box variant on these connectors? They do as some of us have done already and use a single two-wire lead to the dynohub, then split that two ways, one to a headlight, the other to a charger.

Best,

Dan.

David Simpson:

--- Quote from: Danneaux on May 04, 2018, 05:35:15 pm ---Have you seen the SON junction box variant on these connectors? They do as some of us have done already and use a single two-wire lead to the dynohub, then split that two ways, one to a headlight, the other to a charger.

--- End quote ---

Yes, that is what interested me. I currently have the Luxos U light, which has a USB charger in the handle-bar-mounted switch for the light. I generally prefer to have separate devices for separate purposes, so when I need to replace the light, I want to go with a separate USB charger, which would involve using a junction box as you describe.

- DaveS

De Sisti:
I have just asked for a stock alert for the following :
https://www.sjscycles.co.uk/search/?term=coaxial
Pity about having to carry out soldering. Not something I've ever done.

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