5 Sep
2013
5 Sep
'13
1:51 p.m.
On Thu, 5 Sep 2013, Tony Duell wrote:
The Registered Jack system/standards came out of Bell System and was used
to replace the hard-wired system for their phones. The FCC adopted the
Registered Jack standards into Part 68 as part of the later deregulation.
This was well before any sort of IEC adoption of these modular connectors,
although it looks like Wikipedia currently gets that partly wrong. Sigh.
Technically a 4P4C "handset cord" plug doesn't even have a Registered Jack
designation, since RJ11, RJ14, etc only apply to the telephone interface
itself, but that didn't stop people from calling them RJ9, RJ10, RJ22,
etc, similar to people calling 10P10C plugs RJ50.
On Sep 5,
2013, at 11:02 AM, emanuel stiebler <emu at e-bbes.com> wrote:
It looks narrower than a 6p housing to me... I would check. If yoy are in
the States, the common telephone plug is a 6p2c or 6p4c. If it looks
narrower than that, it's a 4p4c.
Hi all,
probably a stupid one, but we have so much fun here discussing the
right nomenclature of connectors ;-)
I'm looking for the right jack/receptacle for a lk201 keyboard for an
keyboard adapter.
so, is this a "RJ11 6p4c"?
I believe (though I could be wrong) that it is a 6P4C, but not If you're trying to buy the plugs, though,
you probably want
to search for RJ11 because that's what most stores sell them
as (just like you want to search for "DB9" serial plugs when
you really want DE9 plugs).
Over here they are often listed as 'FCC68' connectors. I am not sure what
FCC regualtions part 68 actually specifies, but I assume that's where the
name comes from.