Splitting LANC signals

Discussion in 'General Electronics Chat' started by Andreas, Mar 14, 2012.

  1. Andreas

    Thread Starter Active Member

    Jan 26, 2009
    68
    4
    Hi,

    Has anyone tried succesfully to split the LANC (Logic Application Control Bus) signal from a Sony hard wired remote controller to two Sony handycams before?

    Now I know Manfrotto make a Remote Control Splitter Box (521SB) which can accept two remote control LANC signals and thus control one camera (such as zoom with one and focus with the other as is often used by professional camera people) but is it possible to split the LANC signal so that only one Remote Control device controls two cameras simulataneously?

    As I understand it the LANC protocol is a biderectional serial open collector communication port, where two devices can communicate with each other. As I understand it, it uses 8 x 8 bit (words) for each desired function.

    The problem that I see (if not slight attenuation over 30 meters (98ft) is that it might create conflicting problems as each camera in turn tries to send its status back to the remote control.

    Any thoughts / ideas appreciated.

    Thanks
     
  2. aac_1234

    New Member

    Mar 25, 2012
    1
    1
    Andreas likes this.
  3. Andreas

    Thread Starter Active Member

    Jan 26, 2009
    68
    4
    Big thanks aac_1234 to some very useful leads. Excellent.
    Andreas
     
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