On Thu, 5 Sep 2013, Jan-Benedict Glaw wrote:
On Thu, 2013-09-05 09:02:44 -0600, emanuel stiebler
<emu at e-bbes.com> wrote:
I'm looking for the right jack/receptacle for
a lk201 keyboard for an
keyboard adapter.
so, is this a "RJ11 6p4c"?
I think it's 4p4c. However, the jacks are built so that a "smaller"
plug will even fit into a larger jack, so a 6p6c (RJ11, RJ12, RJ13 and
some more) will also work.
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 happens a lot with 8P8C (RJ45) jacks
that people attempt to plug phones into that use 6P4C, 6P2C, etc (RJ11)
plugs.
There /are/ a few 6P type modular plugs out there that do have relief
openings that will somewhat fit 8P8C jacks, but they are very uncommon.
The plug fit is still loose and it isn't something the modular plug
standards (from Bell System) ever really intended.