On Sep 6, 2013, at 5:44 PM, Mouse wrote:
> No,
generally one should not use a smaller modular plug in a larger
> modular jack. Most plugs do not have relief slots next to the
> outermost contacts and the polycarbonate plug body will permanently
> deform the outer contacts in the modular jack.
This would be a reason to avoid using (eg) a 4p4c plug in a 6p6c jack.
But I don't see it as a reason to avoid using, eg, a 4p4c plug in a
6p4c or 6p2c jack. Is there something else I'm missing?
As long as one is actually using 6pNc appropriately, no. If you're
talking about plugging, say, a 4p4c plug into a 6p6c jack (which was one
of the original situations mentioned, in particular when you have to
come up with an MMJ cable in a pinch without the actual plug), then you
risk damaging pins. Plugging a 4p4c into a 6p4c jack should be just
fine.
It would be fine to plug a 6P2C, 6P4C, or 6P6C plug into a 6PxC jack, but
not a narrower 4P4C plug (commonly used for telephone handset cords and