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Looking for a 2 hole snap on wire grommet

Discussion in 'Electronic Design' started by Jamie, Oct 2, 2012.

  1. Jamie

    Jamie Guest

    I would like to pair up some RG-174 used in a bridge instrument as
    leads to the clips.
    I want to be able to pair off the two clips however, what I would
    like is a snap on wire clasp with 2 guide holes to hold the
    two coaxes together as single lead or, just a oval channel would
    be fine.. This is to have no sharp edges and design to be exposed
    to users.

    It would be nice if it could wrap around the two cables and snap
    together, so that later it could be un snapped to replace a coax
    if needed, or if they are cheap enough we could just snap on new
    one.

    This is sort of like a ladder line grouping fastener but I don't
    need the spacing as such and should have no provided holes for panel
    mountings.. sort of like a wrap around snap on grommet.


    Does any one have a name for this?

    Jamie
     
  2. Bill Sloman

    Bill Sloman Guest

    What you probably need is a D-type mixed signal connector with a
    couple of coaxial inserts. Most of them seemed to be designed to work
    with RG-174, but we used them with semi-rigid coax and "conformable
    coax" when we were being hyper-careful with our high-frequency
    signals.

    You can put a socket into the front panel and plug an ordered group of
    coax cables into it, and use the usual D-type connector locks to keep
    everything together.

    If you've got lots of coax cables, mixed-signal DIN-41612 connectors
    can accommodate more of them.

    If you described what you were trying to do in a little more detail,
    one might be able to be more helpful.

    What on earth are "the clips" doing? Just grabbing the outside of the
    cables?
     
  3. Jamie

    Jamie Guest

    Yes bill, I simply want to pair some RG-174. I have 6 feet of 2 pairs,
    each pair is a connection to the bridge circuit, I need to keep these
    pairs from getting tangled since all four coaxes are coming out of a
    module plug and the outer 2's need to be paired for each clip.

    I want to use removeable/replaceable bonnet type clips when it comes
    time to replace a coax, which it will happen..

    For now, the prototype will be using neoprene O-rings.. At least they
    can make adjustments to the spaceing at the end before the kelvin clips


    Jamie
     
  4. Bill Sloman

    Bill Sloman Guest

    So tie the outer 2's together by feeding them through two separate
    mixed-signal D-type connector bodies

    http://uk.farnell.com/harting/09-69-200-0033/socket-d-mixed-power-3w3/dp/1207591

    You can fill the third gap with a power connector pin to make sure the
    two connectors aren't identical and thus can't be plugged in in the
    wrong order.
    What's wrong with cable ties? You'd have to discard them when you
    wanted to discard the coaxial cable, but they are a lot cheaper than
    coax. You can figure-of-eight loop them if you don't want to risk
    distorting the coaxial cable.
     
  5. Jamie

    Jamie Guest

    You know, I work at a place that makes wire! I never thought of that and
    also, I don't remember that ever being made as long as I have worked for
    them over the years, at least the RG-174 line. (Brand Rex), BiccGeneral,
    Bicc, Continental and now General Cable.

    That is a good idea and I think I'll have to sit down on the computer
    tomorrow to check the warehouses for stock in other locations, I know we
    don't have in our location. IF that does not pan out, then we'll just
    buy from a competitor :)

    Thanks.

    Jamie
     
  6. legg

    legg Guest

    Twisted pairs, just like regular signal cable; heatshrink-banded ends,
    prior to leaddressing or termination.

    RL
     
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