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XLR Time Code ?

Discussion in 'Recording' started by Sidhu, Jan 7, 2005.

  1. Sidhu

    Sidhu Active Member


    I might be needing to sync a DM24 to a digibeta soon. The DM24 accepts TC via a female RCA jack. This was not a problem while using the Betacam SP. BNC to RCA cable.

    Just saw a Digibeta. It has XLR TC input and output. What kind of a cable do i use ?

    On the RCA side, do I :

    float the negative ?
    float the ground ?
    Attach negative to ground ?

    thank you

  2. RAIN0707

    RAIN0707 Guest

    By XLR TC Input and Output I'm assuming you are talking about what they call AES i/o's but maybe not. If it is an AES just plug in a standard XLR cable to carry word clock to other devices. That's all I had to do with my Motu 192hd system. Someone please correct me if I am off target on this one and help Sidhu out.

    Sorry I cant answer the RCA question. I'm sure someone here can.
  3. FifthCircle

    FifthCircle Well-Known Member

    When I've had to do this, I use any XLR-1/4 cable I can find. Some have a ground floated, some don't. Haven't really found it to matter very much. Same with the BNC I/O's that you may find...

    And the XLR is not an AES I/O. Simply a balanced time code I/O. You'll also find 1/4" plugs (both balanced and unbalanced) in gear.

  4. Sidhu

    Sidhu Active Member

    the XLR output is generating SMPTE. But as i suspected, sending out a balanced signal.

    I want to know, while taking a balanced signal to an unbalanced. Why do we float the Ground and not the negative ?

  5. Kev

    Kev Well-Known Member

    watch for a -10, 0 or +4 db issue
    I sometimes need to use a 1:1 trafo here and or pad
    can depend on distance and ground issues.
  6. Sidhu

    Sidhu Active Member

    I checked for that. Im sure i dint see a switch with the TC out. thaks anywaz. Ill chek again.


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