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sync link output?

Discussion in 'TAG McLaren Audio Owners' Forum' started by caleb, Aug 18, 2005.

  1. caleb

    caleb
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    Sorry guys of this is a dumb question!

    What exactly does the TAG sync link give out - is it a voltage that switches on the other TAG units, and if so does anyone know what the voltage is?

    Thanks
     
  2. roversd1

    roversd1
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    From the dusty vaults of the helpdesk memory:

    The sync carries the re-clocking information from the source (DVD32R/ CDT32R) to the processor.



    TAGtronic Sync Link T2L
    The proprietary TAGtronic Synchronisation Link
    sends a signal to products designed for this
    advanced technology (such as our dvd player
    DVD32R) to synchronize its clock to the master
    reference within the AV32R, resulting in a very
    low-noise, ultra-low jitter reference right next to
    the DACs.


    To be honest, the voltage is very low and nothing to worry about.
     
  3. caleb

    caleb
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    Hi Rover SD1 - now you will know you are dealing with a real dumb Ar#se.

    It's not the Sync cable that I was eluding to, but the tag link between processor, amp, dvdplayer etc which is like the network cable and plug.

    Sorry to give it the wrong name, I think it's called the TAG communications cable.
     
  4. caleb

    caleb
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    Anyone able to help me with this one - I need to know if the communications cable gives out any voltage
     
  5. Thunder

    Thunder
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    As the sync link runs on fire wire and controls a varity of features, not just power on and off. I would have thought that it was more complex than a simple voltage related on/off trigger :)
     
  6. roversd1

    roversd1
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    The Sync Link is entirely separate from the TAGtronic Communications Bus. There is NO 'firewire' involved.

    The TAGtronic Bus carries all of the comms between the units and (from memory) is a few millivolts.

    There is no need to worry about the length of cable required as the information can be carried for hundreds of metres if required.
     
  7. Stevesky

    Stevesky
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    Things may of run hot in TAG McLaren land, but Fire Wire could never describe the TAGtronic Link bus! ;o) It's based on RS485 running at 115K baud, which is bit like RS232 but is inherently multi-drop rather than single point to point.

    The protocol is a custom affair which allows either long or short messages to be sent to one or more devices on the bus. Devices are catagorised by product type (DVD, AVP, AMP etc.) and also a unique ID in that group so we can talk to individual products (Amp1, Amp2 etc etc).

    Pros of such a system is a simple plug and play mentallity to automation and uses cheap network cables. Cons are that third parties found it very hard to integrate to as it requires reasonable real-time software development knowledge to write a driver to comply to the demanding timings of the low level protocol.
     
  8. Raphie

    Raphie
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    If only Mark Levinson would had used the protocol (the form factor is already the same) why has there never been a generic standard developed for this kind of stuff?
     
  9. Thunder

    Thunder
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    Sorry meant Tagtronic bus :suicide:
     
  10. Thunder

    Thunder
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    Sorry for incorrect terminology, should have said RJ45 :suicide: :suicide: I'm not to with it today :(
     

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