Add female variants of coaxial connector symbols

[ferdymercury]

Generic connectors in the symbol library usually have male and female variants. Coaxial connectors were missing the female variant, which is now added in this PR.

• Provide a URL to a datasheet for the symbol(s) you are contributing
• Provide a screenshot of the symbol(s) from the symbol editor with the pin types visible
• Ensure that the associated footprints match the official footprint library
• A new fitting footprint must be submitted if the library does not yet contain one.
• If there are matching footprint PRs, provide link(s) as appropriate
• Check the output of the Travis automated check scripts - fix any errors as required
• Give a reason behind any intentional library convention rule violation.

[ferdymercury]

Side note, this is how other software tends to depict coaxial connectors, with a kink in the cable rather than a hole in the outer circle:

[ferdymercury]

We could discuss if we want to change it to something like:

[ferdymercury]

This is the variant in https://www.ohwr.org/projects/pmtlib

[myfreescalewebpage]

Hello @ferdymercury and thanks for contributing,

Does the design refer to a specific norm or usage ? Can you provide examples ?

The current "Conn_Coaxial" symbol can be used with male or female parts. I personally used with UFL, SMA, RPSMA etc connectors without any trouble and I don't think I have seen your design on schematics in the past.

Thanks to clarify,

Joel

[ferdymercury]

Thanks!

I understand that one can use the same connector symbol for male or female parts.

But why is there then a male and female variant for a normal connector, and not for a BNC one?

What I did was just to copy these symbol style, having the open circle as a mark for female.

[ferdymercury]

Concerning the norm, I am not sure, I just followed the style that was in Conn_01x01_Female adapted on top the current BNC symbol.

Maybe this discussion helps: https://forum.kicad.info/t/correct-connector-symbols-to-use-iaw-iec-60617/3923

[myfreescalewebpage]

In this case I suggest to rename the existing symbols with "_Female" + create "_Male" symbols with colored circle.
This will make something similar to the DB connectors: males with plain circle and females with background color circle.

I think the idea is not bad I just look after consistency across the library and references or norm.

[ferdymercury]

Thanks for the input!

Concerning renaming the existing symbols as _Female, wouldn't that break compatibility with older schematics?

[myfreescalewebpage]

It will. But we are very closed to KiCad V6, and breaking changes are permitted for that.
The only consequence for you is that we will have to wait a bit before merging your PR.
The agenda is to start merging breaking change for v6 beginning of September, it's very closed !

[ferdymercury]

I was checking, and the problem with using a filled circle for male, is that it would conflict with what we have now for Coaxial_Power. So I am not sure what to do...

[myfreescalewebpage]

I'm not sure either.
@poeschlr and @evanshultz if you have time to think about this issue ?
Joel

[ferdymercury]

(The semicircle idea I had proposed, I had copied from Conn_01_Female connector style)