Connect with us

RJ-14 Connectors

Discussion in 'Electronic Basics' started by Ryan Ashline, Sep 26, 2003.

Scroll to continue with content
  1. Ryan Ashline

    Ryan Ashline Guest

    Does anyone know where I can find RJ-14 conectors? I need RJ-14(4
    cond) for a speacial cable not RJ-11(6 cond).

    Thanks for your help

  2. Dbowey

    Dbowey Guest

    Ryan posted:
    RJ11 and RJ14 are both 6-position connectors. The plugs are physically
    identical, but the jack is different for each.

    The "RJ" series catalog does not show a 4-position connector, but there are
    probably similar jack and plug combos with 4-positions, that do not use the RJ

  3. John Fields

    John Fields Guest

  4. My local electronics shop sells the next components:

    Modular plugs
    RJ-14 4p4c
    RJ-11 6p4c
    RJ-12 6p6c
    RJ-45 8p8c

    Where p is for position and c for contact. I have some samples of all of
    them. Except for the RJ-12, do-it-yourself shops
    also sell them. The well known RJ-45 is widely used in UTP networks and
    ISDN. RJ-11 and RJ-14 are used for telephones.

  5. Dbowey

    Dbowey Guest

    pieter posted:
    The Position count you have for the RJ14 is incorrect or the package is

    The RJ14 uses positions 2, 3, 4, 5. Positions 1 and 4 are vacant, but they are
    present. Physically, for width, you must use a 6-position mini-modular socket
    to mate with a RJ14.

  6. Dbowey

    Dbowey Guest

    My previous post contains an error:
    Should read: Positions 1 and 6 are vacant,...

  7. There's a lot of confusion out there regarding modular plugs. I did not want
    to start a discussion about it, I simply copied the info from the local
    electronics shop. (To me local is Rotterdam.)

    As for the RJ-xx modular plugs, telephone companies often uses 6p4c (or
    RJ-11) but only two of the connections are required for one telephone line.
    (The 6p6c is often also named RJ-11 by them although it's commonly named
    RJ-12 elsewhere.) As for the RJ-14, this is same 6p4c modular plug but it is
    wired to carry two telephone lines. That's why you can buy a lot of RJ-14
    <--> 2xRJ-11 splitters.

    The 4p4c modular plug does not fit in this catagories although it is widely
    used. I often see them on handset cords. Their jackets are to small for a
    6pxc modular plug although their plugs fit in a 6pxc jacket. (But they can
    move a little to much so you may get faulty contacts.) Some also name them
    RJ-11 which I consider part of the confusion.

    The only thing all agree about is the 8p8c modular plug. It's called RJ-45
    regardless what signals it carries.

  8. Dbowey

    Dbowey Guest


    I don't wish to comment further on the RJ14, etc., except to say that I am
    quite familiar with the RJ--- connectors, as I was a member of the ANSI T1
    Working Group that designed the RJ14. I still maintain a catalog of all the

    The problem with the RJ connectors is that it is the RJ identity that defines
    pin identities and functions. When a mini-modular connector is used in a
    non-telco situation, then it IS NOT an RJ----. f people do not want an RJ14,
    RJ48C, etc., it is best to call it by what it really is; for example, a 6-pin
    mini-modular jack or plug.
    All we can agree on is that when the connector is in a bag, it it might become
    an RJ45, but it might not.

    Does Holland use the "RJ" Network Interface?


  9. I have about a hundred cables that are 8p8c modular plug on on end,
    and the other end is spade lugs. They were made for data terminals, with
    RS-232 interfaces. The plugs went into the terminals, and the lugs went
    to a terminal block.
  10. Don,

    Well, this explains a lot of the confusion. At least to me. As for the 8p8c
    modular plugs (and jacks), they're becomming the new "RS232" I'm afraid.

    In Holland all new (and less old) equipment has 6p4c modular jacks. Most
    large building and offices that has their own in house PBX also use any type
    of modular jack in the wall outlet. Private houses however are still using
    outlets and four pins plugs of about the same size as a mains plug. The plug
    on the other side of the cord however is a 6p4c modular type nowadays. You
    can easily exchange the heavy plug with a same type that contains a a 6p4c
    jack. Do-it-yourself-markets sell all of the material you need to extend
    your installation, including modular plugs, wall outlets, cabling and cheap
    plastic pliers to mount the modular plugs. But this does not mean that Dutch
    Telecom uses "RJ". I never saw RJ mentioned in one of their publications,
    at least not to the general public.

    As for Ryan, the answer to his original question becomes: The plugs you want
    to have are 4p4c mini-modular ones. For sale in Holland. Look at
    .. They do post orders. Ordernumber 05.57.5144 modular plug 4p4c
    Radiall-type R280MOD4X4. I just updated the catalog. It's also called RJ-10
    now, not RJ-14 anymore. (Which both are wrong as we know by now.) They are
    priced 0.48 Euro a piece (ex. VAT) which goes down to 0.23 a piece if you
    buy one hundred of them at a time. Don't know about shipping and custom.
    You'll have to mail DIL yourself.

  11. Guest

    From my understanding of what you are asking for, I would say you are
    looking for an FCC68 specification 4p,4c mini modular plug/skt.
    I have never actually seen any supplier particularly refer to this
    type (4p/4c) as RJ?? anything before, though the larger connectors do
    have RJ numbering. Any supplier of datacomms/networking stuff should
    carry what you need.

  12. First off, you should ask this on and
    comp.dcom.cabling. Almost all modular connectors come with four pins,
    which is RJ-14.

    @@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@,@@[email protected]@[email protected],@@[email protected]@[email protected]@[email protected]@
    ###Got a Question about ELECTRONICS? Check HERE First:###
    My email address is whitelisted. *All* email sent to it
    goes directly to the trash unless you add NOSPAM in the
    Subject: line with other stuff. alondra101 <at>
    Don't be ripped off by the big book dealers. Go to the URL
    that will give you a choice and save you money(up to half). You'll be glad you did!
    Just when you thought you had all this figured out, the gov't
    changed it:
    @@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@[email protected]@[email protected]@@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]@@
  13. Wich is wrong as Don Bowey explained already.

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day