Reply to "Legacy - TMCC Mode or Cab1 Mode for TMCC engines"

Vernon BarryOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

FWIW, I'll admit joining the hobby circa 2018, I too had to learn these names, and to me Legacy in my IT world meant the old system.

Conventional: the oldest way of operating trains by varying the voltage on the track. Additionally Whistle DC offset modifying the AC waveform was added, and then later opposite DC polarity offset bell.

TMCC- AKA Command Control- added circa 1995.

Legacy-added circa December 2007- the next generation of command control features. It's capable of transmitting backwards compatible TMCC commands but when set to Legacy for a given ID it then sends the more advanced Legacy command format that TMCC engines cannot understand. Again, understand this is on a per ID setting, such that it defaults to CAB style commands, and the user can choose in the CAB2 remote to display TMCC icons, or even Legacy, however, Legacy setting won't work on a TMCC only engine.

7/8/229:14 AM

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